Commercial HVAC News

Read about useful insights, important information, case studies, technologies and advice of new release products available in the New Zealand market relating to the building market.

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CAD drawing files are available now for your next HVAC project

Monday 15th of June 2020
CAD modelling is becoming a fundamental requirement throughout a project timeline. As such, CAD drawing files including 2D DXF, 3D DWG and 3D RFA files are available for e-Series Chillers, Ecodan, VRF/HVRF, Lossnay and other Mitsubishi Electric Systems. They can be accessed through our dedicated BDT dealer portal.

In addition to CAD resources, our online libraries also contain all relevant brochures, manuals, data books and guides for our full HVAC range.

Where to find the CAD drawing files on BDT Online

From the BDT Online homepage, select the ‘Document Library’ under ‘HVAC Downloads’ or the ‘Document Library’ box link at the top of the page.

You can find the link to the CAD drawing files on the left-hand side under the ‘CAD Drawing Files’ section. 2D DXF, 3D DWG, or RFA formats are available and updated regularly in accordance with additions to our Mitsubishi Electric Product Range.

Project Spotlight: Tamahere Eventide Home and Retirement Village

Tasked with the HVAC design and build for this project directly, All Seasons Air Conditioning was able to start on the front foot by downloading the architectural models onto their CAD software with the Mitsubishi Electric CAD models.

Pre-planning with CAD drawings helped overcome key design challenges

Due to each plant room housing multiple hydronic branch controllers, full fresh air ducted, and water fill sets, fitting these would have been difficult without prior modelling. Plastic composite piping was required to be run down significant lengths of corridors before connecting to a bulkhead supplying each care room. This was an obstacle when the piping’s internal diameter is 20mm with 13mm of insulation. As such, fitting the flow and return, which is much larger than standard copper refrigeration, would have proved a challenge on-site without pre-design and planning.

CAD drawings allowed full visualisation of the system for easy installation

Each of the two plant rooms was located above supply cupboards servicing their own floor’s care suites and supply fresh air ducting around the facility. Up to 850m of indoor plastic, composite piping was required for each hybrid branch controller. These distances are used to calculate the expansion tank sizing per box. As a result, full-sized drawings included CAD models of the R32 HVRF outdoor units for installation arrangement and piping layout.

Level one plant room section view

First floor HVAC and LTHW piping

During build LTHW piping and full-fresh air ducting

To obtain a BDT Online Login, please contact your local BDT Sales Engineer.

Dual Setpoint Mode now comes standard with City Multi VRF and HVRF Systems

Tuesday 28th of April 2020
Modern buildings are now being designed with more and more requirements for occupant comfort and energy efficiency. User comfort is now seen as an increased source of productivity and reduction in illness. Rising energy costs and a drive to lower energy use are motivating building operators to decrease power consumption.

Single Setpoint found in traditional HVAC systems often restricts comfort

Standard Automatic Mode offers only one setpoint to the user. This would often prove problematic as the comfort of the inhabitant would be influenced by not only the space temperature but also the temperature of the incoming air from the air conditioning system. One setpoint with warm or recirculated air would be comfortable; however, the same setpoint with cool circulated air would feel uncomfortable. Add to this the requirement for the changeover from heating to cooling needing a deadband to prevent cycling and you would end up with a sudden drop in temperature once the mode changes.

Dual Setpoint is the next generation in comfort and energy consumption control

Dual Setpoint offers a solution to this issue by allowing a different heating and cooling setpoint with the system changing mode in between the two setpoints. This control is also ideal for large open spaces where a number of occupants are present with different comfort requirements.

By introducing a deadband between the heating and cooling setpoints, energy savings are offered by preventing over-heating and/or cooling the space.

Dual Setpoint – now built-in to City Multi Systems for ease of use

Previously a high-level BMS or additional controls were required to achieve this level of comfort. However, now this functionality is inbuilt in Mitsubishi Electric City Multi VRF and HVRF Heat Recovery Systems.

Climaveneta News February 2020

Friday 28th of February 2020
Introducing the NX-G06 Air Source Chillers and Heat Pump Range (153-338 kW) with scroll compressors and low GWP refrigerant R454B for process and comfort applications

Mitsubishi Electric and BDT are pleased to announce an extension of the NX-G06 Air Source Chiller and Heat Pump Range from MEHITS Climaveneta.

These new 4-scroll compressor heat pumps and chillers are available in comfort and process models including:

  • NX-G06 4-Compressor Chiller for comfort applications
  • NX-N-G06 4-Compressor Heat Pump for comfort applications
  • NX-G06-Y 4-Compressor Chiller for process applications
  • NX-N-G06-Y 4-Compressor Heat Pump for process applications

New larger capacity models available

In addition to the smaller NX-G06 Range which come in 50kW to 218kW capacities, the new models are available with capacities from 153kW to 338kW. Furthermore, by featuring 4-scroll compressors, these larger units have two refrigerant circuits for increased redundancy.

As a result, this product is ideal for bigger commercial and industrial applications.

Next-generation R454B refrigerant for greater energy efficiency and reduced carbon footprint

In line with the objective of the Kigali Amendment, MEHITS Climaveneta extends its low carbon offering to scroll units. R454B is the new low GWP refrigerant chosen for our fixed speed scroll units and is identified with the acronym G06.

R454B refrigerant features:

  • Lowest GWP in the market for scroll units: only 466 (-76% vs R410A, -31% vs R32)
  • Reduced refrigerant charge (-10% vs R410A)
  • Higher efficiency (+3.5% vs R410A) with little capacity reduction
  • Compatible with same materials and components as R410A
  • Same operating map as R410A in cooling, better in heating
  • Mildly flammable A2L, PED fluid group 1
  • Composition: 69% R32 + 31% R1234yf

Derived from the existing NX Range with R410A (versions, configurations and main accessories are the same), these units have been upgraded to handle dangerous fluid (PED fluid group 1).

Some technical improvements have also been made to make the new NX-G06 Range more competitive and ready for the Energy Related Products (ErP) Directive 2021. One of the key improvements that has been made is this solution now has larger operating limits for heat pumps down to -15°C of outdoor temperature at full load.


Optional accessories are also available, including:

  • EC fans
  • Leak detector
  • Energy meter for BMS or W3000 connection
  • Smart control functions including Night Mode, user limit control, unit activation by remote temperature probe
  • KIPlink and new communication protocols (Konnex, Modbus TCP/IP, SNMP, M-NET)

Click here to find our Comfort Series documents including brochures, data books and more.

For any Climaveneta product inquiries, please contact:

Jim Baxter
National Sales Manager // HVAC Chillers
Black Diamond Technologies Limited
jimb@bdt.co.nz
021 853 737

Plant Optimisation for Optimum Energy Efficiency with CPECS and ClimaPro

Tuesday 21st of January 2020
Increased focus on operational cost and carbon reduction is driving energy optimisation opportunities in New Zealand. Through our applied product range we can supply, engineer, commission and provide ongoing support for central heating and cooling plant optimisation solutions to suit any application.

Extracting the full potential from your mechanical plant under all operating conditions is essential to achieve optimum efficiency and minimise operating costs. But with chilled water and heat pump hot water solutions, how can you determine the best system efficiency point under varying operating conditions?

The Central Plant Energy Control System (CPECS) and ClimaPro Plant Optimisation Platforms provide two alternatives, going beyond the traditional load or temperature-based sequencing often implemented by building management systems (BMS).

Alternate Text

Central Plant Energy Control System (CPECS) by SMARDT

  • A brand agnostic solution for cooling plant optimisation
  • CPECS Synergy Plant Optimisation with existing BMS control
  • CPECS Zen Plant Optimisation and Automation for full central plant control
Alternate Text

ClimaPro by Climaveneta

  • A solution for Climaveneta cooling and heating products

  • ClimaPro Silver:

    • Maintenance and diagnostics
    • Management and monitoring
    • Measurement and verification
    • Report and chart builder
  • ClimaPro Gold:

    • All the benefits you get with ClimaPro Silver
    • Additional control and optimisation

These optimisation solutions continuously monitor operating parameters and react in real-time to achieve the lowest input energy operating point for the overall system, while ensuring safe operating limits are maintained.

Both optimisation platforms run on the Tridium Niagara Framework® and incorporate measurement and verification with integrated monthly performance reporting.

Through implementation of these optimisation solutions, BDT has enabled clients to achieve significant energy savings across numerous projects delivered to date. These include air-cooled and water-cooled chilled water systems as well as simultaneous heating and cooling plant.


For more about Plant Optimisation Systems, contact:
Jeremy Peck
BMS Sales Engineer
jeremyp@bdt.co.nz
021 194 8759

For more information on SMARDT and Climaveneta Products, contact:
Jim Baxter
National Sales Manager - HVAC Chillers
jimb@bdt.co.nz
021 853 737

Introducing City Multi R32 Hybrid VRF – The Revolution of Water.

Tuesday 8th of October 2019
The HVAC industry is currently seeing huge pressure put on the use of HFC refrigerants, primarily R410A in the air conditioning market. This pressure is systemic of the global drive to reduce our industry’s Global Warming Potential by reducing the amount of high GWP refrigerant we are supplying into the global market.

The New Zealand Government, having adopted the Kigali Amendment to the Montreal Protocol, has cemented us in the drive to reduce our global warming potential. This is impacting the decision-making process when designing HVAC systems, from the global research and design or manufacturing, all the way down to the type of unit we install into our homes and businesses here in New Zealand.

The market has seen the wider adoption of R32 refrigerant on a domestic level, and the increasing immergence of low GWP refrigerants such as R513 or R1234ze in the chilled water market, but the question still remains around the VRF / VRV market as to how we tackle low GWP refrigerants.

Mitsubishi Electric have been at the forefront of the VRF market for many years with the world’s first 2 pipe heat recovery VRF system. In 2014, they pioneered the world’s first Hybrid VRF (HVRF) system, incorporating VRF Technology into a hydronic-based fan coil system, providing the market with a 2 pipe heat recovery hydronic solution.

Again in 2019, Mitsubishi Electric have led the way by incorporating a low GWP refrigerant with Hybrid VRF giving the lowest GWP VRF-based system available. With a GWP potential as low as 20% of a traditional R410A VRF system, and no risk of refrigerant leakage into occupied spaces, R32 HVRF provides a convenient, modular VRF solution with advantages otherwise found in a 4 pipe heat recovery hydronic system.

Hybrid VRF is a simple premise. Using a traditional VRF condenser as the base of the design, engineers set about developing a hybrid branch controller which uses the same heat recovery principles of a traditional DX system. What sets this system apart is that it incorporates four plate heat exchangers as the condensing and evaporating devices to allow heat recovery to water rather than air.

By using the heat exchangers to absorb and impart heat to the water circuitry, HVRF is able to cool, heat or simultaneously heat and cool the circulated water out to the field devices. The Hybrid Branch Controller (BC) incorporates two separate variable speed DC pumps and manifold systems to direct the heated or cooled water to the required fan coil units. Using only two pipes between the branch controller and each indoor, while still being able to deliver both heating and cooling.

Coupled to a proprietary control system which considers the heating and cooling demand, as well as the flow rate of the system, there is no need for a complicated bespoke control and valve system with Hybrid VRF as there is with a traditional hydronic heat recovery system. This makes Hybrid VRF a very easy-to-use package.

R32 Hybrid VRF is the new era of VRF in the market. Mitsubishi Electric have strived to design a system which not only meets the legislative requirements being imposed on the market today, but also meets the future requirements that our market will have to adhere to.

The demand for high energy efficiencies, low global warming potential and improved corporate social responsibility is increasing. As a result, regardless whether operating on a global, national or regional basis, all businesses are being forced to look at their own buildings and how their decisions on capital plant will impact them over the life span of the product. As such R410A systems are becoming less viable. The cost of refrigerant is only increasing, with R410A cost per kilogram climbing rapidly based on the high GWP and the ETS tax imposed.

As business owners, design engineers, installers and suppliers of HVAC systems in New Zealand, it is our duty to provide the developers and building owners a robust future-proof solution to best suit their building and occupants needs. It is imperative we observe occupant safety and ensure our decisions will not have a lasting impact on our environment for the future.

BDT and Mitsubishi Electric are dedicated to leading the market with innovative products and initiatives which ensure our social corporate responsibilities are upheld; protecting ourselves, our stakeholders and the public.

For more information on R32 Hybrid VRF Technology, click here.







MEHIT Offers Lower GWP Refrigerants on Chillers and Heat Pumps

Wednesday 4th of September 2019
Mitsubishi Electric Hydronics & IT Cooling Systems S.p.A (MEHIT) introduces the use of lower GWP refrigerants R513A and R454B on its chillers and heat pumps.

MEHIT, which was formed in 2015 from the merger of the former Climaveneta and DeLclima businesses, has selected Opteon XP10 (R513A) for its screw and centrifugal oil-free chiller platform, and Opteon XL41 (R454B) for its multi-scroll platform, produced in Europe.

This is seen as part of an environmental initiative to provide efficient, sustainable, and long-term solutions to the chiller market ahead of the next 2021 European F-Gas Cap phase down and will be implemented from this year onwards.

R513A is a non-toxic, non-flammable A1 refrigerant with a GWP of 631, composed of a blend of 44% R134a and 56% R1234yf.

R454B is a “mildly flammable” A2L refrigerant blend of 68.9% R32 and 31.1% 1234yf. It has a GWP of 466 and offers improved energy efficiency, similar capacity, and excellent design compatibility.

This shift will help the chiller and heat pump industry move towards more environmentally sustainable refrigerant solutions while meeting long-term regulatory requirements and delivering consistent performance.

MEHIT has a long track record in eco-friendly solutions and was among the very first to promote, to the most eco-conscious customers, screw and centrifugal chillers based on HFOs; namely R1234ze with near-to-zero GWP, while also combining superior efficiencies.

MEHIT used its state-of-the-art research and development centres and its cooperation with Mitsubishi Electric Group laboratories to conduct in-depth evaluations of different refrigerant and components alternatives.

Currently, MEHIT screw chillers are available in R513A and R1234ze versions, and all its screw heat pumps and simultaneous heating and cooling units in R513A. MEHIT selected R454B for multi-scroll chillers and heat pumps. It was seen as the best solution to minimise environmental impact and energy use, while also improving performance. Some units utilising Mitsubishi Electric Inverter Compressors will be made available with R32.

As a R410A replacement for the multi-scroll chiller and heat pump ranges, MEHIT decided to also lead the change to lower GWP refrigerants. Therefore, the product line for the R454B version of the multi-scroll chillers is scheduled for release in the first quarter of 2020.

No other company is offering such a wide choice to the market. We are making this big effort, recognising customers at this point in time have different needs and constraints.


For more information, contact:
Jim Baxter
National Sales Manager – HVAC Chillers
021 853 737
jimb@bdt.co.nz






Black Diamond Controls – The Next level in Building Management Systems

Monday 17th of June 2019
Since 2017, Mitsubishi Electric has been providing Building Management System (BMS) solutions to the New Zealand HVAC market.

Black Diamond Controls is a Building Management System that natively integrates our diverse product range alongside third party devices. Ventilation products, VRF, chilled water, Ecodan, energy monitoring and more can now be integrated into a single unified platform to provide monitoring and control. With this level of system integration the scope for energy performance optimisation can be increased.

From small hospitality applications through to large commercial and health care facilities, Mitsubishi Electric can tailor a custom Building Management System solution specific to your project requirements.

A Wide Product Range to Satisfy a Variety of Needs

Our BMS product range covers a wide area, from programmable controllers through to field devices such as sensors, control valves and energy meters. Mitsubishi Electric work with a range of established product suppliers to ensure we can offer suitable engineered solution for each individual project.

Built on the established and industry leading Tridium Niagara Framework®, the DC-8000 JACE Controller operates the latest revision of the Niagara 4 Platform and is designed to integrate diverse building systems and devices into one seamless Building Management System.

Interface devices such as the MelcoBEMS Mini provide additional flexibility for incorporating single heat pump units into a BMS solution.

BMS and City Multi – An All-In-One System

Our BMS products complement and expand the capabilities of our current City Multi offering. The flexibility of fully programmable BACnet Controllers and access to a wide range of peripheral sensing and control devices allows increased system functionality.

Plant Optimisation for Maximum Operation Potential

Increased focus on operational cost and carbon reduction is driving energy optimisation opportunities in New Zealand. Through our applied product range we can supply, engineer and commission central chilled water plant optimisation solutions to suit any application.

Extracting the full potential from your mechanical plant under all operating conditions is essential to achieve the best system efficiency. With chilled water systems, how can you determine the best system efficiency point under varying operating conditions? Introducing the Central Plant Energy Control System (CPECS). This system continuously monitors operating parameters and reacts in real-time to achieve the lowest input energy operating point for the overall system.

CPECS is a brand agnostic solution, capable of being deployed on any system configuration and any manufacturer’s equipment. The optimisation platform runs on the Tridium Niagara Framework® and incorporates measurement and verification with integrated monthly performance reporting.



With numerous optimisation projects delivered in New Zealand, we are achieving significant energy savings on air cooled and water cooled chilled water systems.

Key BMS Projects in New Zealand:

Ministry of Education – Rawhiti Shool, Christchurch

  • An energy monitoring opportunity with BECA in Christchurch, where BMS capabilities were added to an existing City Multi System to provide off site real-time energy monitoring of the air conditioning and general electricity meters

Ruapehu Ski Club – The Lodge, Whakapapa Ski Field

  • Includes a BMS system incorporated with Ecodan Hot Water Heating and HyperCore Heat Pump Technology
  • Provides remote access and control capabilities for RSC members
  • Features system scheduling and performance monitoring
  • Enables energy monitoring and peak demand management

Te Omanga Hospice – Lower Hutt

  • Offers a comprehensive BMS suite incorporating the complete HVAC system
  • Features a customised user interface for system monitoring, scheduling and set point control


For more on Building Management Systems, please contact:

Jeremy Peck
021 194 8759
jeremyp@bdt.co.nz
BMS Sales Engineer

HVRF – The Way of the Future

Thursday 11th of April 2019
In July 2017 we showcased Hybrid VRF at our City Multi Conference in Wellington. Since then, we have been busy working with consultants and contractors across New Zealand, with many finding relevant applications for this innovative technology in their HVAC building design. One of the biggest reasons consultants are actively choosing HVRF has been to eliminate refrigeration in the building space, especially in medical facilities.

Ideal for Medical Practice Applications

Of all of the HVRF Systems sold in New Zealand to date, 33% have been installed at medical centres. Doctor-patient privacy is one of the key requirements for medical centres where consulting rooms are often fully sealed.

Refrigerant Concentration Limitations

These small footprint medical consultation rooms dictate the limitations on the refrigerant concentration allowed due to safety regulations, as laid out in ASNZS5149. In turn, additional refrigerant leak detectors are required, creating increased expenditure not just in capital costs but also ongoing maintenance of leak detection systems.

HVRF Mitigates These Factors as Only Water is Passed Through the Indoor Units

In the new amendments to the legislation, not only has the critical concentration limit been reduced, but under circumstances where refrigerant leak detectors are required, this is no longer the only measure that is acceptable according to ASNZS5149. Now at least two more safety measures should be implemented such as ventilation (natural or mechanical), safety shut-off valves, or a safety alarm.

What is Hybrid VRF?

Hybrid VRF is next generation technology from Mitsubishi Electric, the world leader in VRF Solutions. This unique 2-Pipe Heat Recovery VRF System replaces refrigerant with water between the Hybrid Branch Circuit Controller and the indoor units. This revolutionary design removes the need for expensive and on-going leak detection servicing and is specifically designed for occupied spaces where quiet, energy efficient, simultaneous heating and cooling is valued. Hybrid VRF provides a truly integrated solution for hotels, offices, hospitals and schools where occupant comfort is paramount.

The ETS and the Continually Rising Cost of Refrigerant

HVRF is not just about critical refrigeration limits. The cost of refrigerant, in particular R410A, is rising and has done so dramatically in the last 2 years with the introduction of the Synthetic Greenhouse Gas Levy which falls under the umbrella of the Emissions Trading Scheme (ETS). The New Zealand ETS puts a price on greenhouse gas emissions to provide an incentive to reduce emissions and in this case use alternative refrigerant gases that have less Global Warming Potential. The ETS has increased significantly with a rate increase (due January 1st 2019) to $41.55/kg of R410A contained in air conditioning units, and considerably more when purchasing additional refrigerant to charge a system. Prices have surged to as much as $100/kg in the New Zealand market.

The Following Projects All Benefited from Cost Saving on Refrigerant:

  • Rototuna Junior High School
    This project benefited from comfortable off-coil temperatures in the classroom and low noise, minimising classroom disturbance.
  • Rotorua Children’s Health Hub and Library
    The use of water instead of refrigerant through the indoor units provided quietness and comfort within the library.
  • Grafton Hall – The University of Auckland
    There was no need for leak detectors as there was no refrigerant in occupied spaces, saving on additional on-going maintenance costs.
  • Burnett Holdings
    With no refrigerant in occupied spaces, HVRF proved to be the perfect solution for individual small offices.
  • Boulcott Apartments
    The refrigerant restrictions in individual apartments also meant HVRF provided much quieter heating and cooling with low refrigerant cost for building owners.

Other Benefits of HVRF

  • HVRF is also a heat recovery system and provides high efficiencies.
  • HVRF is flexible and simple to design and install, incorporating the same control network and architecture as CITYmulti VRF.
  • The decentralised system means phased installation is possible with the same high levels of seasonal efficiency expected with VRF.
  • With water at the indoor units, HVRF provides comfortable and stable air temperature control; enhancing occupant comfort and making it an attractive option for many commercial applications.

To learn more about HVRF or read additional case studies click here.

New Service Tool Software for City Multi VRF Systems

Thursday 11th of April 2019
Mitsubishi Electric New Zealand is proud to release the recently updated Service Tool Software – Version 5.30 for checking, servicing and analysing City Multi VRF Systems.

As heating technology evolves, so too does the need for a monitoring system that not only gives you all the information you need in real-time, but is easy to use when you’re on (or away from) the job with limited time. Mitsubishi Electric New Zealand is proud to release the recently updated Service Tool Software for checking, servicing and analysing City Multi VRF Systems.

Evolving Data to Real-Time Visualisation

Moving from the older data table format, this newly updated version now features a new diagram format to help Service Technicians to more quickly quantify system performance and quickly identify any problem at a glance.

Easy System Monitoring at a Glance

The new City Multi VRF Service Tool condenses the entire system into a diagram, showing key components of each system for up-to-the-minute, simple monitoring in one place.

The diagram showing information related to a specific component is displayed next to it for quick referencing, so Service Technicians can easily see the value of any sensor, position of any valve or speed of any motor in its place on the refrigeration circuit in real-time, to accurately monitor the system and fix any issues that arise.

In the below example outdoor unit, we can easily see:

  • Compressor outlet temp = 96.6°C
  • Compressor crankcase temp = 41.8°C
  • Compressor speed = 72Hz
  • OU fan speed = 530rpm
  • OU coil refrigerant temp = 23°C in / 5 °C out

For an indoor unit we can easily see:
  • Fan speed = High
  • Mode called for = Heating
  • Refrigerant = 69.9°C in / 35.7°C out
  • Return air temp = 23°C
  • Valve position = 495 pulses open

Graphs Parameters Easily for Additional Reporting

The updated software now enables Service Technicians to graph any parameter being recorded to see a trend over time for accurate reporting and control. And, with the ability to graph multiple parameters against each other on the same time scale, comparative reporting is even easier.

For example, the graph below shows:

  • Compressor outlet temperature (TH4)
  • BC Box sub cooling outlet temperature (T5)

The Control is in Your Hands

With the newly updated Service Tool from Mitsubishi Electric, the servicing and maintenance of City Multi VRF Systems can be done at a glance with an easy-to-use, customisable online tool that not only saves time with reporting key data but will ideally save down-time onsite also.

Want to know more? Click here to learn more and download the Service Tool from the secure login section.*

* Note that the firmware of the ODU may require upgrading to enable the new software to work correctly. BDT can offer this firmware upgrade on a case by case basis to sites which require it. Please contact your local sales or service representative for more information.

QAHV CO2 Hot Water Heat Pumps

Monday 11th of March 2019
Water heating solutions and the steady supply of clean hot water on tap is an ever-increasing demand by businesses, but high temperature potable water and other HVAC water heating costs are often a significant, ongoing expense. Therefore, businesses and property owners are now looking for a potable hot water heating solution which supplies continuous hot water, while being environmentally friendly and cost effective in the long-term.

Introducing Mitsubishi Electric QAHV CO2 Hot Water Heat Pumps

More than ever, business owners are now looking to more environmentally friendly solutions to help provide core services to their customers when they need it most. So, Mitsubishi Electric have engineered the perfect solution; the QAHV CO2 Hot Water Heat Pump. The Mitsubishi Electric QAHV trans-critical hot water generator incorporates natural CO2 refrigerant rather than R410A which heating systems traditionally used. Now, hospitals, gyms, hotels and many other services can provide secure and reliable HVAC hot water supply with reduced cost and CO2 emissions.

A revolution in efficiency

With a zero Ozone Depletion Potential (ODP) and a low Global Warming Potential (GWP) of 1%, in compliance with the Kigali Climate Change Agreement, QAHV also boasts a highly efficient COP rating of 3.88* at standard conditions.

Ideal replacement for inefficient traditional boiler systems

Mitsubishi Electric QAHV is set to replace ageing, inefficient boiler systems and are increasingly being specified in new industrial and commercial projects where high volume electric hot water generation costs could affect a business’s pockets. Mitsubishi Electric QAHV utilises advanced inverter compressor technology combined with an inverter controlled primary pump to optimise the heat exchanger delta T and overall system COP in all load conditions.

Unique Heat Exchange Technology

With advanced “twisted spiral gas cooler” technology unique to Mitsubishi Electric, maximum heat exchange is ensured while maintaining strength and structural integrity under the CO2 high gas cooler operating pressures. The continuous spiral grooves of the water pipe design with the gas pipe wound around optimises water turbulence while maintaining high efficiency heat exchange, reducing pressure loss in the heat exchanger.

Environmentally friendly with superior energy efficiency

QAHV is an environmentally friendly solution to low ambient high temperature water supply. With a rated 40kW output capability down to sub-zero conditions** and operation down to -25°C while providing up to 90°C supply hot water, QAHV combines superior energy efficiency with optimum performance. This level of performance in the past has been the domain of much cheaper capital cost gas, oil or electric boiler systems. But, with high ongoing energy costs throughout its lifetime, increased environmental concerns and high maintenance costs around traditional heat sources, Mitsubishi Electric’s QAHV provides a long-term cost-effective maintenance solution.

Ideal for high temperature, large volume water applications

For engineered design solutions for large potable high temperature hot water storage (e.g. industrial wash downs, leisure facilities, hotels) the QAHV will ensure high temperatures of up to 90°C which opens up many industrial and commercial opportunities.

Of course, this exciting new product will be accompanied with the exceptional level of technical support, commissioning, and maintenance expertise that give our customers the confidence and security to invest in Mitsubishi Electric products. QAHV from Mitsubishi Electric: The high volume, high temperature commercial grade hot water supply solution for your next project.

* Standard conditions 17°C inlet water DB 16°C WB 12°C
** -3°C outdoor ambient


Ideal applications:

  • Gyms
  • Hotels
  • Schools
  • Shopping Malls
  • Universities
  • Factories

The Next Generation Mitsubishi Electric PQRY Water Sourced VRF

Tuesday 22nd of January 2019
When an air cooled air conditioning solution isn’t practical, contractors and consultants often look for effective alternatives to power their systems that both reduces long-term expenditure and future-proofs their clients investment with a sustainable, environmentally-friendly air conditioning solution. With changes in regulations and the demand for environmentally-friendly solutions ever-growing, water is becoming a popular alternative within the HVAC industry.

The Next Generation in Water Sourced VRF

Introducing Mitsubishi Electric PQRY Water Sourced VRF Systems. These unique systems use water to offer a solution to a range of common challenges such as limited plant space, long refrigerant pipe runs and compliance to standards while retaining the advantages of VRF and the benefits from very high efficiencies.

City Multi PQRY units connect to a central (condenser) water loop and extract energy from this. That energy is then used for simultaneous heating & cooling in a similar fashion to a common air sourced VRF system.

Small Footprint, Big Benefits

Mitsubishi Electric Water Sourced units are specifically designed for commercial applications such as hotels, commercial buildings, office buildings, and so many more applications, either as new builds or retrofits. With a small footprint and the ability to reject energy to the building water loop instead of the air, water sourced VRF allows you to bring the outdoor units inside and reduce plant size when:

  • The outdoor plant space is limited
  • The buildings external outdoor aesthetics are critical
  • Pipe runs or pipe lifts are large

This flexibility means reduced costs, more usable space, no defrost cycle and the ability to bring the unit closer to the air conditioned zone, therefore reducing the additional refrigerant volume required (a dual benefit of lower refrigerant cost and improved compliance with NZS5149).

A Water Sourced System with the Benefits of VRF

Water sourced outdoor units are available in heat pump (heating or cooling) and simultaneous heating and cooling configurations with no change to the internal system design from our standard VRF, thus retaining VRF’s modular design style and removing the need for bespoke controls or valves as seen on chilled water systems. This makes Mitsubishi Electric PQRY an easy solution for end of life replacement jobs or when capital costs need to be spread out as the separately operating VRF systems allow for staged installs with the added benefit of much improved redundancy.

Utilising the wide operating water temperature range of 10-45°C, you can also reduce the size of the external heat rejection plant, take advantage of waste heat from server rooms, and connect to energy sources such as nearby rivers, lakes or a geothermal loop in order to reduce upfront costs and long-term energy usage.

Increased Efficiencies with Heat Recovery

Mitsubishi Electric PQRY features the same patented heat recovery technology at the indoor units as also found in Mitsubishi Electric 2-Pipe Air Sourced VRF units, which provides real world efficiency increases and running cost savings. With multiple water cooled systems, an additional heat recovery stage is obtained at the outdoor units through the buildings water loop. Often, PQRY full load COP’s without heat recovery will exceed 5.0 and can improve significantly further with double heat recovery.

Other Key Features of Mitsubishi Electric Water Sourced Systems

  • No requirement for ventilation around the unit, therefore offering installation cost savings
  • More efficiency by offering dual heat recovery at the outdoor and indoor units
  • Smaller footprints which offer improved plant space flexibility
  • Uses a modular, non-bespoke design making implementation easy
  • Is a 2-pipe system throughout the entire building with simultaneous heating and cooling which saves on installation costs compared to 4-pipe chiller or 3-pipe VRF systems
  • Includes improved redundancy as each system operates independently and allows for staged installs; spreading capital costs and reducing loads on existing chillers for replacement jobs.

If your client is looking for a total air conditioning system that is super energy efficient, has a small footprint, is sustainable and will reduce capital expenditure, Mitsubishi Electric PQRY Water Sourced VRF is the perfect solution to recommend for your next commercial project.

For more information about Mitsubishi Electric PQRY Water Sourced VRF, please contact your local Sales Representative.

HYBRID VRF - Industry First Patented Technology

Tuesday 11th of December 2018
It is clear that designing building systems brings challenges. As we move to the future, inevitably there will be more regulations and legislation to adhere to, particularly around environment and occupant safety. BDT are no strangers to these challenges and we pride ourselves on providing solutions for the building market to comply, meet targets and provide outstanding quality systems for the end user.

BDT’s latest solution to the commercial building market is City Multi Hybrid VRF, the next generation of heat recovery systems for commercial buildings.

HVRF is a 2-pipe heat recovery system which replaces refrigerant with water between the BC Controller and the Indoot units, so there is no refrigerant in occupied spaces while providing higher efficiencies. You can also install and design it as a VRF whilst enjoying the features of a chiller system.

Why is this a great solution?

The SGG levy in New Zealand has put extra cost on purchasing synthetic greenhouse gases and this cost is set to increase, pushing up the price of refrigerants such as R410A. HVRF reduces this burden as it has less refrigerant in the total system. HVRF is ideal for applications where the limitation of refrigerant in occupied spaces is required, in particular where occupant safety is paramount. With no refrigerant in the occupied room space, this removes the need for expensive leak detection systems with ongoing maintenance costs.

HVRF is simple and flexible to design and install using the same control and network as VRF systems. Furthermore, the decentralised system means phased installation is possible with the same high levels of seasonal efficiency expected with VRF. With water at the indoor units, HVRF provides comfortable and stable air temperature control enhancing occupant comfort. Modular, small footprint and low weight outdoors makes for manageable phased installation. HVRF is a fully packaged solution; valves, pumps and heat exchangers are all contained within the HBC Controller with minor third party items required, making commissioning simpler.

Ideal applications:
  • Schools
  • Medical Centres
  • Libraries
  • Hotel
  • Office
  • Hospitals

Introducing the E-Series Modular Chiller

Wednesday 28th of November 2018
It is Mitsubishi Electric’s most efficient chiller system yet! The E-Series Chiller by Mitsubishi Electric provides highly efficient performance thanks to its inverter compressors & DC fan technology. Available in either cooling only or heat pump, the E-Series comes in either 90kW, 150kW & 180kW modules with the ability to connect up to 6 modules reaching a maximum installed capacity of over 1MW.

It is an energy efficient alternative system with flexible design!

The highly efficient E-Series Modular Chiller Range, with an ESEER of 5.66, is designed to answer the need for controllable, energy efficient cooling and heating with reduced plant size and a host of advanced features and benefits taken straight from Mitsubishi Electric’s experience in the air conditioning industry.

The E-Series Modular Chiller is available in either a cooling only version or as a highly efficient heat pump model that uses two advanced DC inverter-driven scroll compressors in each 90kW module. Soft Start Technology means that the starting current is only 8 Amps per module, where a conventional style chiller would pull up to 180 Amps on start-up. This reduces mechanical and electrical stress improving equipment longevity.

Whether one module or six, the deliverable capacity range is between 8% to 100%. The E-Series Modular Chiller delivers market-leading levels of efficiency with the ability for units to operate on their own or in conjunction with others.


Sophisticated design and small footprint installation

The unique shape and modular design of the E-Series Modular Chiller means that the system can be constructed with up to six individual units connected together, to provide a total capacity between 90kW and 540kW. This also provides outstanding redundancy due to multiple refrigerant circuits.

The use of U-shaped high performance air heat exchangers offers a greater surface area, for higher heat exchange efficiency, this and the units are narrower than conventional systems. Each 90kW module can be positioned next to each other in a row, with up to six units using the same inbuilt, internal header. For larger systems, it is also possible to have double rows of the units with a gap of only 900mm service space plus it can be designed as a double-row double stack, offering space saving where plant area maybe limited.


And yes they are quiet too!

The E-Series Modular Chiller achieves low noise levels which is increasingly important in inner city locations. These low noise levels are achieved through both the unique construction and design of each unit, as well as the advanced component technology within each chiller.

BMS integration

The E-Series Modular Chiller is easily integrated with new and existing BMS systems, either hardwired or via MelcoBEMS Mini Interface it can be remotely controlled and monitored, ideal for facilities management.


New additions to the E-Series Chiller Family

As of September 2018, the Mitsubishi E-Series Range has been extended to now include 150kW & 180kW modules.

With similar technical features & providing excellent efficiencies, the P1500 & P1800 Models are a more traditional shape with vertical discharge condenser fans. Available in both cooling only & heat pump models, up to six of these modular chillers can be connected in one system.



Lossnay Fresh Air Energy Recovery Ventilation

Tuesday 6th of November 2018
Ventilation is an important aspect in any HVAC installation. It not only provides compliance to the G4 Clause of the New Zealand Building Code but also ensures internal environments are safe and suitable for occupation. With ever increasing energy costs and a push to lower carbon footprints, air to air heat recovery for ventilation is becoming a must have for any building.

Our current LGH-RVX-E Range of Fresh Air Energy Recovery Ventilation Systems have a treated, permeable paper energy recovery core. This core allows the transfer of heat and water vapour while preventing the transfer of gases.

So what sets the LGH Lossnay apart from other Ventilation Systems?


Total heat recovery
  • Energy recovery through the permeable core not only recovers sensible heat but also latent heat from humidity in the air, further reducing load on HVAC plant and saving on energy consumption.
Excellent energy recovery rates even in low temperatures
  • Lossnay’s total energy recovery rate is typically in the order of 70% ~ 75%. This is higher than common efficiencies seen for a solid core ventilator which transfers sensible heat only.
  • At 0°C outdoor air temperature, and a space temperature of 20°C, supply air from a Lossnay unit can be around 16°C – which is warm enough to supply directly to a fan coil unit without any expensive additional top up heating.
Optimised humidity management
  • Transferring latent heat (humidity) also helps maintain an acceptable relative humidity within the occupied space. With Lossnay, air introduced into the space is closer to the space humidity than other uncontrolled ventilators. Without Lossnay, air is typically preheated and humidified in Winter and precooled and dehumidified in Summer.
Standard Bypass Damper removing the need for additional controls
  • All LGH Lossnay units come standard with a Bypass Damper allowing for free cooling and night purge. Internal settings also prevent the unit from operating on bypass when supply air will be below an acceptable temperature.
  • Lossnay is able to communicate with Mitsubishi Electric Air Conditioning units allowing for the Bypass Damper to provide free cooling based on the connected indoor units mode of operation. This removes the need for any expensive additional controls.
Minimised riser space
  • Air processing locally removes the need for large roof mounted air handling units. Riser space can also be minimised by using smaller intakes closer to the space.
Reduced running cost
  • Lossnay removes issues associated with traditional methods of supplying untreated fresh air in summer and utilising electric heater banks for Winter. These old methods are no longer seen as acceptable as they commonly cause high running costs in Winter and problems such as poor cooling performance and condensate dripping from supply duct / grilles in Summer.
Very quiet operation
  • LGH Lossnay’s are quiet in operation with even the largest unit only producing 41dBA at 1.5m below the unit on high fan speed.
Air filtration
  • Outside and Exhaust Air Filters are provided as standard for core protection. An optional high efficiency filter can be fitted into the unit to filter the supply air to rating F7 (EU7).
Easy service access
  • Service accessibility is required to one side of the unit only. The electrical panel, core and filters can all be accessed through the one access panel.
Functional controls
  • PZ-61DR-E Wall Controller allows for the following additional functionality:
    - Display of outside air, exhaust air and calculated supply air temperature.
    - Function settings allow for fan speeds to be increased slightly to achieve airflow if slightly short.
Advanced Co2 Control and Air Pressure Control
  • Inbuilt logic allows CO2 control through input via a third party 0-10V CO2 Sensor.
  • Positive or negative pressure can be achieved by offsetting supply and exhaust fan speeds.
  • Test data for gas transmission shows this is very low - less than 3% for all gases tested.
  • Test data for bacterial transmission shows no bacteria is transferred between the exhaust and supply air streams.

For more information on our Lossnay or other Mitsubishi Electric Ventilation Products, please contact your local Sales Engineer.

Full Parts and Labour Warranty Programme

Friday 14th of September 2018
At Black Diamond Technologies (BDT) we have always been committed to standing behind our Authorised Mitsubishi Electric Dealers in New Zealand, because we know that they, like us, understand the importance of quality, whether it is product, installations or service.

We know Dealers choosing Mitsubishi Electric City Multi Variable Refrigerant Flow (VRF) Systems for projects comes down to more than just being the best quality and value. Dealers promoting the use of Mitsubishi Electric for projects need to provide clients with peace of mind for their HVAC investment.

That is why BDT developed a local, nationwide Technical Services Team who provides industry-leading support to Dealers. This is also why our warranty includes labour, because we understand how this can affect a business if their time is not accounted for when rectifying warranty claims.

This mutual trust and commitment between us and our Dealers has lead BDT to go one step further with an Extended Full Parts and Labour Warranty Programme on the EP, PUMY and HVRF Ranges. Offering warranties that go beyond one year is about providing our Dealers further assurance when selecting Mitsubishi Electric City Multi VRF Systems for their clients.

The extended warranty period applies to all new orders placed from 15th August 2018 onwards for the following product ranges:

Hybrid VRF (HVRF)
PURY / PQRY (air and water source) HVRF Systems including indoor units
Now 3 Year Full Parts and Labour Warranty*

HVRF is a 2-pipe heat recovery VRF with water between the Hybrid Branch Circuit (HBC) Controller and indoor units. You can install and design it as VRF whilst enjoying the features of a chiller system. This provides a complete modern solution for office buildings, hotels, medical centres, schools, high-rise buildings, shopping centres and other commercial premises.


R2 and Y High Efficiency Series
PURY-EP / PUHY-EP Systems including indoor units
Now 3 Year Full Parts and Labour Warranty*

EP models have increased heat exchange efficiencies of up to 30% as they are manufactured with a high quality aluminium flat tube heat exchanger, increasing surface contact area yet maintaining the same footprint as standard heat exchangers. This significantly improves energy saving performance.


S Series
PUMY-P-V(Y)KM VRF Systems including indoor units
Now 5 Year Full Parts and Labour Warranty

The City Multi S Series is ideal for small commercial applications and makes use of a two-pipe refrigerant system, which allows for system changeover from cooling to heating. It is the all-in-one air conditioning solution for large residences or offices with multiple rooms (nominal 12.5 - 15.5kW cooling / 14.0 - 18kW heating).


For further conditions please contact your local City Multi Sales Engineer.

*As a condition to this Extended Full Parts and Labour Warranty Programme, Dealers will need to ensure quarterly maintenance checks are made on these product installations with the Maintenance Check Sheet, which is attached.

AE200 Central Controller

Friday 14th of September 2018
Our current AE200, 10.4 inch touchscreen, is a popular central controller which is able to connect to all Mitsubishi Electric City Multi and split systems. The intuitive central controller allows you to control up to 200 indoor units as well as offering daily, weekly and 365 day timeclock control, plus offers remote accessibility through the client’s computer network.

This controller is able to offer a lot more functionality through additional hardware and licensing.

BACnet connection to a Building Management System (BMS) using licensing. This allows up to 200 indoor units to connect to a BMS through one BACnet license installed into the AE200 and subsequent expansion controllers without the need for expensive additional hardware.

Power Apportioning – The system utilises third party electrical pulse meters to measure the power usage of each outdoor unit via the PAC-YG60MCA-J PI controller. The power used is then assigned to each indoor unit based on the usage over that time. This can be used to assign power usage to individual units for on billing. This can now be achieved without the need for TG2000 software by exporting CSV data directly from the AE200 onto a USB which can be edited on a PC using the Charge Calculation Tool. The data can also be communicated to a BMS over BACnet using the BACnet license.

PI Controller – Third party electrical, water or gas pulse meters can be inputted into the system through our PAC-YG60MCA-J PI controller. This information can be displayed on screen or outputted to a CSV file on a USB enabling the end user to monitor building energy consumption.

AI Input Controller – Third party temperature and humidity sensors can be monitored using our PAC-YG63MCA-J and displayed on the AE200. Trending can be viewed over the AE200 web interface. An alarm output by email can be generated when measurement exceeds a preset upper or lower limit.

DIDO Controller – Control and Fault monitoring of external items can be achieved using our PAC-YG66DCA-J DIDO controller. This allows third party items to be time scheduled through the AE200 similar to an air conditioning unit or to be interlocked to any air conditioning unit connected to the AE200. This also allows indoor units to be turned on and off from an external input such as a security system.

Alpha2 PLC – The AE200 can connect to our Mitsubishi Electric PLC through our AHC adaptor. This allows for simple logic to be applied to third party digital or analogue inputs or sensor data of any air conditioning unit connected to the AE200. This logic can then be used to control digital or analogue outputs or any air conditioning unit connected to the AE200.

For more information on any of the above functionality please contact your local City Multi Sales Engineer.

City Multi VRF YNW

Monday 9th of July 2018
Mitsubishi Electric’s City Multi VRF YNW Range provides our lowest installation costs, running costs and CO2 emissions of a VRF system. This is achieved through the new 4-sided heat exchanger, compressor and fan design, improving both nominal and seasonal efficiency levels.

Launched at the City Multi Conference last year the VRF YNW Range offers further energy efficiencies with EP Models which retain the unique flat tube aluminium micro-channel heat exchanger, a pivotal step in providing more effective and efficient heat transfer.

YNW Range alleviates some of the legislative concerns (AS/NZS 5149:2106) regarding the critical concentration limit of refrigerant in occupied spaces, due to the significantly reduced refrigerant charge needed to produce the same rated output compared with previous models.

Advanced Heat Exchanger for Energy Efficiencies

The YNW Range uses a newly designed four-sided heat exchanger mounted on the upper-part of the module which decreases energy usage and increases the heat exchanger’s efficiency. The multiplier effect created by increasing the number of coil faces from three to four surfaces greatly improves the operational efficiency.

Superior Energy Efficiencies with EP Models

The YNW Range offers advanced heat exchangers on their standard models, incorporating copper tube aluminium fins; while high efficiency EP models incorporate the flat-tube aluminium heat exchanger, increasing the surface area of the coil for even higher efficiencies. The inside of the flat tube is divided into thin compartments which increase the area of contact between refrigerant and air, leading to a significant improvement in energy-saving performance.


Footprint Reduced by up to 29%!

YNW Range maximises the space available for plant by reducing the area required for outdoor units. Up to 51kW of cooling capacity can be delivered per square metre of plant thanks to the advanced wrap around the heat exchanger.

Greater flexibility for location of outdoor units is possible thanks to multiple external static pressure settings. Extending up to 80Pa will help with long or narrow ducting requirements.

Enhanced Inverter Scroll Compressor

Exclusive to the City Multi VRF YNW Range, the improved compressor with centrifugal force cancelling mechanism enables the speed to increase to 140 revolutions per second – speeding up start-up operation and offering improved part load performance.

These characteristics offer the most intelligent and reliable inverter scroll compressors on the market.

Advanced Compressor Programming

The YNW Range features adjustable logic settings such as Low Noise modes and compressor saturated suction temperatures including a variable floating SST.

The options offered by City Multi VRF systems allow fixed evaporation set points ranging from -6 all the way to 14 degree Celsius. By floating the saturated suction temperature, the condensing unit can lift the evaporation temperature as the fan coil units reach their temperature set point. The result, increased occupant comfort levels and further improvement on the overall efficiency of the units when looking at seasonal performance data.

Larger Capacity Range

The YNW Range not only offers a larger range of single module condensers, but also an increased number of twinned condenser options.

YNW Range is the largest range of condensers available in today’s market, allowing combinations up to 140kW for heat recovery systems and up to 168kW for the heat pump range in both the standard and high efficiency options.

Introducing the E-Series Modular Chiller

Thursday 26th of April 2018
It is Mitsubishi Electric’s most efficient chiller system yet! The E-Series Modular Chiller by Mitsubishi Electric provides an alternative to traditional chillers with the ability to provide powerful heating or cooling at high efficiencies from a small footprint. The E-Series Modular Chiller has a comparatively low refrigerant charge and is ETS levy exempt. No refrigerant hazards in occupied spaces negate the need for expensive leak detection systems.

It is an energy efficient alternative system with flexible design!

The highly efficient E-Series Modular Chiller range, with an ESEER of 5.66, is designed to answer the need for controllable, energy efficient cooling and heating with reduced plant size and a host of advanced features and benefits taken straight from Mitsubishi Electric’s experience in the air conditioning industry.

The E-Series Modular Chiller is available in either a cooling only version or as a highly efficient heat pump model that uses two advanced DC inverter-driven scroll compressors in each 90kW module. Soft Start technology means that the starting current is only 8 Amps per module, where a conventional style chiller would pull up to 180 Amps on start-up, this reduces mechanical and electrical stress improving equipment longevity.

Whether one module or six, the deliverable capacity range is between 8% to 100%. The E-Series Modular Chiller delivers market-leading levels of efficiency with the ability for units to operate on their own or in conjunction with others.






Sophisticated Design and small footprint installation

The unique shape and modular design of the E-Series Modular Chiller means that the system can be constructed with up to six individual units connected together, to provide a total capacity between 90kW and 540kW. This also provides outstanding redundancy due to multiple refrigerant circuits.

The use of U-shaped high performance air heat exchangers offers a greater surface area, for higher heat exchange efficiency, this and the units are narrower than conventional systems. Each 90kW module can be positioned next to each other in a row, with up to six units using the same inbuilt, internal header. For larger systems, it is also possible to have double rows of the units with a gap of only 900mm service space plus it can be designed as a double-row double stack, offering space saving where plant area maybe limited.

And yes they are quiet too!

The E-Series Modular Chiller achieves low noise levels which is increasingly important in inner city locations. These low noise levels are achieved through both the unique construction and design of each unit, as well as the advanced component technology within each chiller.

The E-Series Modular Chiller is easily integrated with new and existing BMS systems, either hardwired or via MelcoBEMS mini interface it can be remotely controlled and monitored, ideal for facilities management.

CITY MULTI Newsletter - Issue 11

Friday 10th of November 2017
BDT welcome back the re-introduced City multi online newsletter. This newsletter will be emailed out on a regular basis updating you on new product ranges, functions and features specific to City multi and Applied Products and offer you a first-hand glimpse into some of the recently completed projects in the New Zealand Market.

Over the past 18 Months the BDT City Multi and Applied Products team have seen some significant changes. With the introduction of additional Sales Engineers and the changes to the team members roles and positions this is a good opportunity to re-introduce the City Multi and Applied Products team.

Matthew Hansen - National Sales Manager
John Greaves - Northern Sales Engineer
Penelope Tait - Northern Sales Engineer
Vince Anthony - Central Sales Engineer
Simon Jane - Southern Sales Engineer
Jon Leyland - Technical Product Manager - Applied Products
Karl Drew - Assistant Product Manager VRF
Shaun Wallace - HVAC Estimator
Jordan Hurley - HVAC Estimator



Best Regards,

Matthew Hansen
National Sales Manager
City Multi and Applied Products

Auckland University of Technology: NorthMed

Thursday 9th of November 2017
The NorthMed Clinic is a new building situated at Auckland University of Technology’s (AUT) North Shore Campus. This innovative facility which opened in July 2017, comprises of modern medical offices and teaching space for Physiotherapy, Psychotherapy, Podiatry, Oral Health, and Student Health Services.

How Lossnay Fresh Air Heat Recovery Ventilation Can Assist with Homestar Certification

Monday 10th of June 2024
The New Zealand Green Building Council's Homestar certification represents a significant step forward in the creation of sustainable living spaces within New Zealand. By adhering to Homestar's guidelines, builders and architects commit to creating homes that are healthier, warmer, drier, and more comfortable, all while consuming less power and water compared to homes built to the minimum standards set by the New Zealand Building Code.

Mitsubishi Electric Lossnay Ventilation Systems not only help with the minimum ventilation requirements for Homestar certification, but also offer up to 5 points towards Good, Best and World Leading Homestar ratings by improving energy efficiencies and indoor air quality.

Homestar ratings and their total qualifying points from Homestar V5

Homestar Homes go Beyond the New Zealand Building Code

A Homestar certified home exceeds the baseline requirements of the Building Code, incorporating advanced design and building practices that ensure higher levels of thermal performance, energy efficiency, and use of healthy, sustainably sourced materials. This commitment to sustainability not only addresses the immediate needs of homeowners for a better living environment but also contributes to the broader environmental goals of reducing carbon footprints and promoting sustainable development practices across New Zealand's residential sector.

The Ventilation Credit Criteria in Homestar Design

Ventilation plays a crucial role in Homestar's assessment framework, particularly in alleviating indoor moisture, improving air quality, and reducing the risk of respiratory illnesses and mould. Homestar rewards designs that incorporate effective ventilation strategies, offering up to 5 points for integrating and commissioning a balanced pressure Mechanical Heat Recovery Ventilation (MHRV) system like Mitsubishi Electric’s Lossnay. There is a mandatory minimum of ventilation points for each star rating:

System Type Points Achievable Rating

Continuous Extract Ventilation System

To achieve 0.35 acph of the entire home OR achieve 7.5 L/s per person, whichever is higher.
EC motors to be equipped to minimise noise and to achieve a higher efficiency.

2-3* Points

Homestar 6 & 7
Homestar 8*

Balanced Ventilation System

To achieve 0.35 acph of the entire home OR achieve 7.5 L/s per person, whichever is higher.

3-4* Points

Homestar 6, 7 & 8
Homestar 9 & 10*

Balanced Ventilation System with Heat Recovery

To achieve 0.35 acph of the entire home OR achieve 7.5 L/s per person, whichever is higher.
Ducting to be insulated with the equivalent of at least 25mm with thermal conductivity more than 0.04 W / (m.k).

4-5* Points

Homestar 6, 7 & 8
Homestar 9 & 10

acph = air changes per hour
* Additional 1 point can be attained through commissioning of each of the above system.

Source: HomeStar V5 Technical Manual, HC3: Ventilation pg. 52, published 18 November 2022, NZGBC.

Mitsubishi Electric Lossnay Fresh Air Heat Recovery Ventilation Can Help Maximise Points

Designed in Japan for New Zealand conditions, Mitsubishi Electric Lossnay is a balanced pressure fresh air ventilation system with heat recovery that is ideal for almost any New Zealand home from apartments and townhouses to large standalone dwellings. Boasting impressive heat exchange efficiencies up to 93%** with noise levels as low as 14 dBA, Lossnay systems allow you to achieve the maximum number of points* for each of the Homestar ratings, compared to selecting other ventilation systems.

* Additional 1 point can be attained through commissioning of each of the above system.
** LGH-50RVS on lowest fan speed.
VL-220C2GV on lowest fan speed. Measured at 1.5m.

Lossnay Units for Homestar

There are a wide range of Lossnay units that are able to achieve high Homestar scores. The Lossnay range covers both vertical and horizontal mounted units, and extraction from wet or dry areas.

Case Study: 7 Homestar Victoria Lane Apartments, Wellington

Victoria Lane Apartments is a new Wellington development featuring 123 premium apartments in the heart of the capital’s CBD. By incorporating Mitsubishi Electric Lossnay Ventilation, the project was able to achieve 5 points towards the 7 Homestar Rating.

Read More

Mitsubishi Electric Celebrates a Decade of Excellence - Thank You for Your Trust New Zealand!

Friday 24th of May 2024
Each year Reader's Digest completes the Trusted Brands survey to determine which brands provide the quality, consistency and familiarity that New Zealand consumers demand. Year after year, these continue to be key attributes of a trusted brand and, therefore, what guides purchasing decisions.

Exclusive distributor of the Mitsubishi Electric brand in New Zealand, Black Diamond Technologies Limited (BDT) is delighted to share that Mitsubishi Electric has been named the Most Trusted Heat Pump Brand by Kiwi consumers in the 2024 Reader's Digest Trusted Brands survey.

Achieving 10 Reader's Digest Trusted Brand Awards in the last 10 years – and winning the Most Trusted Heat Pump Brand 8 times – cements Mitsubishi Electric as the leading brand Kiwis have trusted over a decade to keep them warm and cosy. Marketing Manager Trish Stenzel says;

“Being repeatedly recognised as the Most Trusted Heat Pump Brand is a testament to the strong relationship we've built with the New Zealand community.

BDT has been the 100% locally owned and operated distributor of Mitsubishi Electric products in New Zealand for over 40 years. Our promise is to bring superior products that are designed for New Zealand conditions, and to also offer unmatched local support and service.

We celebrate this recognition as it reaffirms our mission to be there for our customers, every step of the way.”

BDT in partnership with Mitsubishi Electric thank you for your trust over the past 10 years. Here's to many more years of warmth and comfort together!

For the detailed survey results, visit: www.trustedbrands.co.nz

Click here to read more about the Mitsubishi Electric and Black Diamond Technologies Limited Partnership.

New EcodanPro CAHV Air Sourced Hot Water Heat Pump Features Low GWP R454C Refrigerant

Monday 20th of May 2024
Mitsubishi Electric is pleased to introduce the EcodanPro R454C CAHV Air Sourced Heat Pump to New Zealand's commercial market, marking a significant advancement in eco-friendly water heating technology. This system is specifically engineered to meet the demanding heating requirements of commercial applications, offering an efficient and sustainable solution for hydronic space heating up to 70°C supply temperatures.

Lower Global Warming Potential Refrigerant

Utilising low Global Warming Potential (GWP) refrigerant R454C, the new CAHV-R450YA-HPB realises a 90% reduction in global warming potential compared to the previous CAHV-P500YA-HPB model, which used R407C (R454C GWP = 148, R407C GWP = 1774, as per IPCC. AR4). The latest CAHV model provides a space heating solution to aid the commercial sector in achieving their sustainability objectives and reducing their environmental footprint.

Meet Diverse Heating Needs by Grouping Multiple Units

Designed for versatility and high performance, the EcodanPro CAHV is capable of operating as an efficient standalone unit or within a cascading system comprising multiple units, up to 16 for a total capacity of 640kW. With the rotation function built-in, compressor runtime is considered, therefore operation between units is based on what will maximise performance and extend product life as standard.

This adaptability ensures it can meet the diverse heating needs of various commercial applications, such as schools, accommodation facilities, office buildings and healthcare providers. Presenting an ideal solution for replacing boiler systems with a more sustainable and efficient alternative.

CAHV-R450YA-HPB Key Features

  • Commercial Space Heating Solution: Suitable for hydronic radiator and underfloor heating systems.
  • Low Carbon Footprint R454C has a GWP of 148 and zero Ozone Depletion Potential.
  • High Flow Temperatures: Offers water flow temperatures from 24°C to 70°C without the need for boost heaters.
  • Low Ambient Temperature Performance: Capable of delivering outlet temperatures up to 70°C in ambient conditions as low as -20°C.
  • Advanced Inverter Control: Maximises operational efficiencies by dynamically adjusting power consumption to meet heating demands.
  • Scalable Solutions: With the ability to connect up to 16 units, offering a total capacity of up to 640kW, the CAHV system can be tailored to suit a wide range of commercial heating requirements.
  • In-built Rotation Function: Evenly distributes operational wear among cascaded units, enhancing efficiency and reliability by automatically rotating units based on their accumulated run hours.
  • Low Noise Operation: Operating from 64dBA (SPL), the CAHV is suitable for medium to high density areas.
  • Optional Coastal Protection Treatment: Offers additional protection for units against corrosive environmental conditions.

Click here to enquire about the commercial hot water heat pump solutions for your next project.

For domestic hot water only applications, please refer to the EcodanPro QAHV CO2 Hot Water Heat Pump.

Wi-Fi Control - the smarter way to manage heating, cooling and ventilation in schools

Friday 26th of April 2024
Award-winning Mitsubishi Electric Wi-Fi Control is the ideal solution to effectively manage heating, cooling and ventilation requirements in schools. From one centralised app, facility managers can effectively monitor and adjust temperature settings and airflow to ensure a comfortable learning environment for students throughout the year.

Group Control Heat Pumps in Classrooms for Consistent Comfort

Multiple heat pumps throughout the school can be controlled simultaneously in the Wi-Fi Control App using Group Control. This feature enables users to group heat pump units based on the building layout, such as by block, and assign easy-to-identify names to each group.

With Group Control, facility managers can easily control the temperature, mode and power on/off all units in a group to ensure comfort in all classrooms.

Set Operating Rules to Pre-heat (or Cool) Classrooms Before Students Arrive

To ensure classrooms are a comfortable temperature when students arrive, facility managers can program simple operating rules in the App. These rules can be customised to meet the school's specific heating and cooling requirements.

A timer rule can be set to activate all heat pumps at 7am on weekdays, pre-heating or pre-cooling the classrooms.

Similarly, a rule can be programmed to turn off the heat pumps automatically at the end of the school day to prevent unnecessary power usage and help the school save money on their energy bill.

Set a Minimum Temperature Rule for a Healthy Learning Environment

When the Minimum Room Temperature feature is enabled in the Wi-Fi Control App, the heat pump(s) can detect if the room temperature falls below the minimum temperature set, and automatically switch on the Heating Mode to maintain the temperature.

The World Health Organisation recommends a minimum indoor temperature of 18°C, so this feature is especially useful in classrooms to maintain a healthy learning environment.

Set a Maximum Room Temperature so Classrooms Don't Overheat

When the Maximum Room Temperature feature is enabled in the Wi-Fi Control App, the heat pump(s) will automatically switch to Cooling Mode if the room temperature surpasses the set maximum temperature.

This feature can be used in summer to prevent classrooms from overheating and ensures students and teachers stay comfortable.

Monitor CO2 Levels to Ensure Optimum Air Quality

In conjunction with the optional CO2 sensor, the Lossnay RVS and RVX3 Fresh Air Ventilation Systems intuitively adjust airflow to ensure optimum air quality, no matter how many people are in the room. The App displays the CO2 levels in real-time and indicates whether they are Good, Moderate or High.

Maintaining good CO2 levels is essential for better health and wellbeing. It also helps students concentrate effectively.

Disable All Rules During School Holidays

By selecting "Disable All Rules" in the Wi-Fi Control App, all rules associated with the heat pumps are deactivated.

This feature can be used during the school holidays to ensure the heat pumps will not turn on while students and teachers are away, saving energy bill costs.

Click here to discover projects with Mitsubishi Electric Wi-Fi Control.

To enquire for your project click here.

Introducing the New Mr Slim Splittable R32 PEA Ducted Series

Sunday 17th of March 2024
Mitsubishi Electric has refreshed their extensive range of Mr Slim ducted solutions with a new R32 PEA Splittable Ducted system to replace previous R410A models – Now the entire range of Mr Slim PEA Series Ducted Systems feature the latest in super-efficient and more environmentally friendly R32 refrigerant!

The PEA Splittable Ducted Series is the perfect solution for both new and existing buildings wanting discrete in-ceiling heating and cooling, thanks to its two-piece construction for ease of transport into the roof space.

Splittable Design for Flexible Installation – Ideal for Remodelling Existing Homes

Installing a ducted system into an existing home can be a challenge, especially when it comes to getting it up into the roof space. A home’s maintenance hole can sometimes be too small to get a traditional ducted indoor unit through, meaning a homeowner could face increased costs for remedial work for cut outs in ceiling gib (or roofing iron) in order to install, or miss out on the choice of a ducted system altogether when upgrading their heating.

To overcome this challenge, the new PEA-M HAA/LAA Splittable Ducted System has been introduced to Mitsubishi Electric’s extensive range of ducted solutions. This system features a two-piece construction that allows separation of the indoor unit’s heat exchanger and fan deck assembly for easier handling and installation in the roof space.

Furthermore, maintenance is made convenient. The two-way access to the fan deck assembly and drain pan means that even when the unit is installed near the ceiling and is inaccessible from underneath, the unit is accessible from another side.

† When fully installed the PEA-M HAA/PEA-M LAA models should be assembled together in one-piece. Any gaps between the fan deck section and heat exchanger at final install will result in significant pressure loss.

When Compared to Previous Model, Experience Carbon Reductions with the Shift to R32

*Based on quantity of pre-charged refrigerant.

One of New Zealand’s Largest Single-Phase Ducted Systems – Save on Electrical Modifications

The new PEA-M180LAA with 20kW heating capacity removes the need for costly 3-phase power building upgrades. While also available as a three-phase system, the single-phase 18kW ducted system ensures optimal comfort without the hassle or expense of additional electrical modifications.

High Static Pressure Fan Offers Flexible Duct Design

With a range of external static pressure settings from 50Pa-150Pa (PEA-M HAA) and 75Pa-250Pa (PEA-M LAA), the PEA Splittable Series offers complete flexibility in duct design. The increased variation in airflow options ensures operation that best matches a variety of room layouts.

PEA 25kW Outdoor Unit is New and Improved

Experience cutting-edge technology that maximises space, minimises weight and boosts install flexibility. The latest outdoor unit to the PEA25kW indoor unit is a game-changer: the PUZ-ZM250 outdoor is 58% smaller, 30% lighter, 23% quieter, and boasts an extended pipe run of 100m (up from 75m), when compared to our previous PUHZ-RP250 model.

Choose from Standard or Deluxe Outdoor Units

The Standard Range for the PEA-M100/125/140 models is the ideal economical solution for projects where extended pipe runs are not necessary. The Deluxe Outdoor Unit offers longer pipe runs up to 75 meters and extended guaranteed heating down to -20°C.

One Compact Outdoor Size across the PUZ-ZM Deluxe Capacities

From 10kW to 25kW, the PUZ-ZM Deluxe outdoor units can easily fit inside a Heat Pump Cover to complement the aesthetics of any building.

Key Features of the PEA-M HAA/LAA Range:

  • Next generation R32 refrigerant
  • Splittable design for flexible install and maintenance options
  • Adaptable duct design with high static pressure fan
  • Choose from Standard or Deluxe outdoor units
  • New and improved PEA 25kW
  • PEA-M180LAA is one of New Zealand’s largest capacity single-phased ducted systems
  • Optional Wi-Fi Heat Pump Control compatible
  • Optional Interlock with Lossnay Fresh Air Heat recovery Ventilation
  • Optional Zone Control – control up to either 4 or 8 zones

Click here to discover the Splittable R32 PEA Ducted Series. For a free no-obligation ducted system consultation for your home or office, complete our online form here.

4 Heat Recovery Advantages of Lossnay Fresh Air Ventilation

Sunday 28th of January 2024
Mechanical Ventilation is becoming the preferred solution to ventilate New Zealand homes. But with so many different options available to choose from, what makes Mitsubishi Electric Lossnay Fresh Air Heat Recovery Ventilation so unique?

Key Features

  • Recovers up to 92%*1 heat energy
  • Heating bills minimised
  • Free cooling*2 in summer
  • Balanced pressure system
  • Efficient duct and grille placement
  • Whole home solutions
  • Designed for more airtight homes

1. Lossnay Retains Heat Energy

Alternate Text

Rather than going to waste, Lossnay’s unique Heat Recovery Technology recovers up to 92%*1 of the heat energy from the outgoing stale air, which is then used to pre-warm or precool the incoming fresh air. In doing so, the cost of heating/cooling this incoming fresh air is significantly reduced, helping the home save on their overall heating/cooling power bill.

For example, a home with an inside temperature of 20°C and an outside temperature of 0°C can still bring fresh air in at over 18°C after recovering energy*1. This means the home’s heating system only has to top this fresh air up by 2°C (or less), rather than the full 20°C which would otherwise be required if using a conventional ventilation system.

2. Lossnay Intuitively Provides Free Cooling via Automatic Free Cooling*2 Mode

Using onboard temperature sensors, Lossnay can be set to intuitively detect when a space is hotter than desired and activate Automatic Free Cooling*2 Mode. As a result, cooler, fresher air from outside is introduced and free cooling is provided to the home. This is ideal for cooling down a dwelling that may have overheated during the day once the outside temperature has dropped in the evening.

3. Lossnay Maximises Efficiency Through Smart Duct and Grille Placement

Often ventilation system efficiency is compromised as poor grille and duct placement results in air being drawn from the coldest parts of the home. Through smart duct and grille placement, Lossnay’s Heat Recovery Technology takes advantage of areas which are naturally warmer. In turn, Lossnay’s efficiency can be maximized for greater energy savings. Furthermore, shorter or equal length duct runs and high R-value ducting can also help optimize heat recovery performance.

4. Lossnay Wi-Fi Control Makes Heat Recovery Ventilation Visible

With Lossnay Wi-Fi Control, elevating air quality and maximizing energy efficiencies has never been easier.

On the app, see by how many degrees Lossnay is pre-warming or pre-cooling a home in real-time, minimizing its heating and cooling needs. And in summer, monitor by how many degrees Lossnay reduces the home temperature, using Automatic Free Cooling*2 Mode.

View actual CO2 Levels*3 and watch how the system automatically activates Boost Mode to maintain optimum air quality. The app will also proactively remind the user when it is time to clean the filters to maximize both cost-efficient operation and health benefits.

Compatible Lossnay Models

Click here to discover the Mitsubishi Electric Lossnay Ventilation range.

The Lossnay Range

*1 VL-500CZPVU on fan speed 1. NOTE: The above example is demonstrative only and performance will vary based on regional/ambient seasonal conditions.
*2 In comparison to using a dedicated cooling device. The unit will continue to use a small amount of power to bring colder fresh air from outside.
*3 The added functionality of CO2 Monitoring will only be available on the RVS and RVX3 ranges when using compatible Mitsubishi Electric CO2 Sensors (optional extra).

Mitsubishi Electric Chiller and Heat Pump Technology Can Help Achieve Carbon Neutral Buildings by 2050

Thursday 16th of November 2023
The New Zealand government has formally committed to achieving carbon neutrality by 2050 and with businesses accounting for around 40% of New Zealand’s energy-related emissions*, how they heat and cool buildings will play a significant role in reducing the nation’s carbon profile.

Black Diamond Technologies offers a Mitsubishi Electric commercial chiller and heat pump range that not only meets the full requirements of the New Zealand HVAC market but offers technology that will also assist clients with achieving carbon reductions in their buildings.

*EECA, https://www.eeca.govt.nz/strategic-focus-areas/productive-and-low-emissions-business/

Air Sourced Chiller, Heat Pump and 4-Pipe Carbon Reduction Solutions

Utilising Low GWP Refrigerants

There are many schemes, both internationally and within New Zealand, that work to reduce the use of high GWP refrigerant gases. Mitsubishi Electric is leading the way with the continued development of chiller, heat pump and 4-pipe systems that utilise new-generation low GWP refrigerants – providing a range of solutions to help meet clients’ sustainability goals.

Mitsubishi Electric Chillers Feature the Latest in Commercial Heating and Cooling Technology

  • Advancements in compressor technology deliver exceptional efficiency across a wide operating range. This results in reduced energy consumption and lower running costs.
  • Adoption of EC fans, which consume less power and increase efficiency compared to traditional fans. By reducing energy consumption, the unit contributes to carbon emission reductions.
  • Advanced onboard control systems allow precise temperature control and adaptability. This maximises chiller efficiency and minimises wastage.
  • Proprietary plant management systems for multi and mixed unit installations are tailored to each chiller's optimum operating envelope – providing unparalleled group operation and overall efficiency.

Spotlight On: INTEGRA 4-Pipe Systems

In modern mixed-use buildings with diverse functions and extensive glass surfaces, managing varying heating and cooling needs is complex. Space for services is also often at a premium. A 4-pipe heat recovery chiller offers a compact, effective and highly efficient solution.

The ability to provide simultaneous heating and cooling from one machine caters to all the building's comfort needs in a very compact form.

Superior efficiency is achieved by recovering energy from cooling and using that same energy to also provide heating in other zones.

INTEGRA 4-pipe machines are a key technology in allowing buildings to achieve the highest levels of performance and meet standards such as Green Star.

The Benefits of Choosing Mitsubishi Electric Chiller and Heat Pump Technology for Carbon Reductions in Buildings:

Building Owners

  • Modern sustainable solutions preventing HVAC assets becoming stranded.
  • Improved amenity and efficiency will attract high-quality tenants for longer.
  • Opportunity to promote building stock and portfolio as leaders in green buildings.
  • BDT’s New Zealand-based technical team provides full commissioning, service, and maintenance support - peace of mind for asset owners.

Consultants

  • Efficiency of Mitsubishi Electric Chillers meets H1/VM3 compliance.
  • Lower GWP refrigerants assist with acquiring sustainability accreditations.
  • Ability to achieve up to 65°C outlet water temperatures, so boiler replacement opportunities can be approached to further reduce a building’s CO2e footprint.

Contractors

  • Reduced risk by dealing with a brand respected for heating and heat recovery technologies.
  • Safety by using a brand with considerable experience with new low GWP refrigerants.
  • Knowledgeable New Zealand-based commissioning and support team reduce your labor time and risk potential.

Building Tenants

  • Units built with efficiency in mind reduce operating costs for tenants.
  • Improved comfort conditions due to better controls.
  • Improved reliability provided by modern machines that are well supported locally and at a factory level.

Click here to enquire about Mitsubishi Electric Chiller, Heat Pump, and 4-Pipe Systems for your project.

5 Good Reasons Why Hybrid is the Logical Choice in Futureproofing Commercial HVAC Building Design

Sunday 22nd of October 2023
Choosing revolutionary R32 Hybrid when designing HVAC systems for commercial buildings, can ensure energy savings, reduce the volume and the use of ozone-depleting refrigerants, offer better user control as well as peak loading reduction.

1. Focus On Energy Savings

R32 Hybrid systems are renowned for their exceptional energy-saving capabilities, making them a smart choice for modern buildings. One of the key advantages lies in their heat recovery functionality, which surpasses traditional chillers. These systems efficiently recover both heat and cooling energy from various zones within a building, ensuring no wastage.

Unlike conventional chillers, where the heat is typically rejected into the atmosphere, R32 Hybrid systems harness this valuable resource, further enhancing their energy efficiency and sustainability. This innovative approach not only reduces energy wastage but also contributes to a more environmentally responsible HVAC solution.

R32 Hybrid systems typically boast higher Seasonal Energy Efficiency Ratios (SEER) and Coefficient of Performance (COP) when compared to conventional chillers with electrical reheats on VAV solutions.

This translates to significant reductions in energy consumption and operating costs, leading to a more sustainable and environmentally friendly building operation.

2. Reduced Refrigerant Volume

Calculating the reduced refrigerant volume between the R32 Hybrid and the existing chiller can be a complex undertaking due to the different technology types involved. However, it’s valuable to consider the R32 Hybrid as a “Deconstructed Chiller” that harnesses the advantages of VRF (Variable Refrigerant Flow) technology.

The key differentiator lies in the refrigerant itself. R32 refrigerant, utilised in Hybrid systems, boasts a significantly lower Global Warming Potential (GWP) compared to R410A, often used in traditional VRF systems. In fact, R32’s GWP is approximately 66% less than that of R410A.

This substantial reduction in GWP showcases the environmental benefits of the R32 Hybrid when compared to traditional VRF systems. While the technology types may vary, the R32 Hybrid stands as an environmentally responsible choice, aligning with global efforts to reduce greenhouse gas emissions and mitigate climate change.

Regulated Phase Down of CO2 Emissions

GWP is a measure of the warming potential as compared to CO2 which has a unitary GWP of 1. R32 refrigerant is zero ozone depleting and has a GWP 66% less than R410A.

For example, R410A will hold 2,088 times more heat when released in the upper atmosphere than the equivalent amount of CO2 would.

R32 refrigerant is being adopted by Mitsubishi Electric as an important step in the process towards the ultimate goal of a zero ODP, zero GWP, efficient, safe and non-toxic refrigerant.

3. Reduction of Ozone Depleting Potential Refrigerants (R32)

R32 Hybrid systems represent a significant leap forward in environmentally responsible HVAC solutions. These systems leverage R32 refrigerant, which has a remarkably lower GWP and zero ozone depletion potential compared to R22. This transition aligns seamlessly with global efforts to mitigate climate change and ozone layer depletion, notably supported by the Kigali Amendment to the Montreal Protocol.

New Zealand, as a signatory to the Kigali Amendment, actively participates in these global initiatives. By adopting R32 Hybrid systems, which offer reduced refrigerant volume and a more sustainable approach to HVAC, we not only ensure efficient heating and cooling but also contribute to a cleaner and greener future, in line with international commitments.

4. Better User Control/User Interface

R32 Hybrid systems offer a distinct advantage in terms of user control and user interface, greatly enhancing human comfort and convenience in the HVAC industry. One key highlight is their integrated control system that seamlessly connects all system components. This eliminates the need for expensive third-party controllers, a common requirement in chiller systems where different components, such as compressors, condensers, evaporators, valves, and all the third-party sensors, often necessitate separate controllers.

With R32 Hybrid systems, users benefit from simplified and streamlined control, which not only enhances user experience but also reduces complexity and costs. This integrated approach ensures that the system operates harmoniously, without the added challenge of managing multiple controllers for various components.

In essence, R32 Hybrid systems empower users with better control and user-friendly interfaces by seamlessly integrating control across critical components, sparing them the expense and complexity associated with separate controllers found in traditional chiller systems. This not only improves the efficiency of the HVAC system but also elevates the overall comfort and satisfaction of building occupants.

5. Peak Loading Reduction

Peak loading reduction plays a crucial role when comparing traditional chillers for cooling and electric reheats for heating against the R32 Hybrid with heat recovery capabilities.

In this scenario, opting for electric heaters for heating purposes proves to be a more expensive approach when contrasted with the heat recovery mechanism inherent in R32 Hybrid systems.

The R32 Hybrid excels in efficiently recovering heat from different zones within a building, making the most of the energy already expended for cooling. This heat recovery process not only reduces energy wastage but also translates into significant cost savings.

Importantly, the R32 Hybrid is capable of extremely high performance at low turn-down capacity, making it a more effective solution for times when not all the load is required, providing greater flexibility in building usage.

Click here to enquire about R32 Hybrid for your project.

It's Time to Change our Refrigerant Choices

Friday 29th of September 2023
Selecting refrigerant driven HVAC plants based simply on capital cost is easy, but short-sighted. Have you ever considered the potential service delivery risks, or the financial and environmental repercussions of these decisions on the future? It’s time to move away from our reliance on the “safe” relatively benign HFC refrigerants we have all become used to.

The Refrigerant Landscape in Summary:

  • HFC phasedown by over 80% by 2037
  • ETS government tax to increase in the future
  • Lower GWP refrigerants are more flammable
  • Refrigerant standards require expensive safety systems, that require ongoing maintenance

Industry Impact of International HFC Phasedown is Significant

The Kigali amendment to the Montreal Protocol is driving the phase-down of HFC gases, which contribute to global warming. New Zealand must reduce HFC gas usage by over 80% by 2037.

Refrigerant Import Rate vs. Consumption Rate

The rate of refrigerant usage is projected to exceed the allowable import amount for servicing by 2026. Switching to lower Global Warming Potential (GWP) refrigerants pushes this crisis date out further.

The Emissions Trading Scheme (ETS)

To effect change, the Emissions Trading Scheme (ETS) imposes a government tax on refrigerants based on their GWP. ETS levies are based on NZ carbon unit cost. Higher GWP refrigerants incur greater ETS levies, with levy rates projected to increase significantly in the future.

Data released in 2021 by the Climate Change Commission indicates that the carbon unit price will need to be over $NZ138 per tonne by 2030 and $NZ250 per tonne by 2050.*

*Source: Bluenotes, "What’s driving the carbon price in New Zealand?".

ETS Cost Impact on Refrigerants

  • Current ETS cost for an 11kg jug of R410A is around $1,560, resulting in a sell price of approximately $2,700 per jug.
  • Industry projections suggest that by 2025, R410A ETS costs could increase to $170/kg, leading to a sell price of around $5,500 + GST per jug.
  • By 2030, if the ETS cost continues to rise at the same rate, it could reach $300/kg for R410A, resulting in a sell price exceeding $12,000 + GST per jug (if you can still get it).

Think about refrigerant costs to charge a VRV / VRF system which would commonly have ~30-40kg of R410A in it. If this system needed to be recharged in 5 years due to a refrigerant leak, the gas could cost upwards of $20,000. In 10 years this could be up to $50,000.

Common HVAC Refrigerants

Lower GWP Refrigerants are More Flammable

Proposed bans on higher GWP refrigerants in specific market categories will lead to the adoption of lower GWP but more flammable/toxic alternatives – posing challenges related to safety and risk mitigation.

Refrigerant Safety Requirements Standard

The NZS 5149 and NZS 60335 standards restrict the use of refrigerants to minimise dangers to occupants, property, and the environment. Directors and business operators can be held liable for breaches under the Health and Safety at Work Act 2015.

Expensive safety systems, including alarms, ventilation systems, shut-off valves, and pressure relief valves, are required by NZS 5149 / NZS 60335. These need ongoing maintenance throughout the life of a building.

This leads to higher operational expenditure for maintenance on large charge direct systems such as VRV.

Future Safety Regulation Challenges

Safety regulations for refrigerant products in overseas countries are becoming stricter, and New Zealand is likely to adopt these standards in the future, necessitating compliance with the latest safety directives.

The industry needs to anticipate future changes by developing products, infrastructure, and safety legislation. Training courses, installer registration, and qualification registers will be necessary.

Hydronic solutions such as Mitsubishi Electric R32 Hybrid or chillers running low GWP refrigerants are seen as a viable path forward in the industry to mitigate these challenges.

Embracing the Future: The Journey to Decarbonising Water Heating in New Zealand

Wednesday 20th of September 2023
As New Zealand sets its sights on a greener, more sustainable future, the quest to transition away from environmentally damaging fossil fuels presents a unique challenge. Among the conundrums faced, a significant one revolves around the need to revolutionise the way we heat water. With the country embarking on a phasedown of gas usage and ambitious plans to reduce reliance on fossil fuels over the next 15 years, the spotlight now turns to finding an eco-friendly, future-proof alternative to gas water heating in homes.

Enter the Almighty Heat Pump

Just as heat pumps have experienced exponential growth since the 2000s, we now witness the emergence of Hot Water Heat Pumps poised to follow in their footsteps. The potential is vast, given that approximately 340,000 homes1 in New Zealand currently use gas to heat their water, emitting over 200,000 tonnes of CO2 per year2. Additionally, there are around 1 million direct electric cylinders1 utilised for water heating, contributing a staggering 400,000 tonnes of CO2 annually3.

The government recognises the significant impact of hot water production on residential energy consumption and carbon emissions. With plans to reduce NZ's carbon emissions by 2050, there is a lot of work to do to reach net-zero.

1Based on estimates from “Housing in Aotearoa: 2020” by stats NZ and “E3 Policy framework”.
2Based on E3 Policy Framework and emissions factor of 0.194 kg CO2-e/kWh from “Measuring Emissions” from Ministry for the Environment – Year 2023.
3Based on E3 Policy Framework and emissions factor of 0.120 kg CO2-e/kWh from “Measuring Emissions” from Ministry for the Environment – Year 2023.

Moving to Hot Water Heat Pumps Makes Sense

To address this critical issue head-on with both new builds and replacing existing systems, means choosing eco-conscious solutions like the Ecodan QUHZ CO2 Hot Water Heat Pump - a hot water heat pump that utilises more environmentally-friendly CO2 refrigerant. The impact would be nothing short of revolutionary, reducing carbon emissions by an astounding 74%**. Considering that water heating accounts for approximately 30%**** of a household's total operational carbon footprint, this step alone takes us closer to solving New Zealand’s environmental challenges.

It is worth noting that New Zealand's commitment to renewable energy sources is at an all-time high, with a current share of 90% from renewables†. The nation strives to increase this share to an impressive 95% by 2050, an endeavour that will ensure that electricity use, even with the transition to heat pumps, will leave a minimal carbon footprint compared to gas.

*Assuming carbon emissions due to heating hot water by gas and direct electric sit at 777,777 GWh, and assuming QUHZ COP of 3.7.
**Based on E3 Policy Framework.
†Based on Page 5 of “Market Operations – Weekly Market Movements – 23 July 2023”, Transpower.

The Future Refrigerant Landscape Paving the Way for CO2 Hot Water Heat Pumps

As a result of the move to net-zero carbon emissions, phasedown of high GWP refrigerants is inevitable. The industry has already seen the move from R22 to R410A to R32 and with A3 refrigerants being the next step, change seems to be an unavoidable part of the heat pump industry. However there is a tangible and future proof solution available right now, CO2 (OR R744) with a GWP of just 1, meets all current and future regulations to phase down refrigerant. Being a natural gas, R744 is something we are all use to, it is what we breathe out into the atmosphere and it's what feeds plants to grow and now CO2 can be used as a naturally occurring, non-flammable and stable refrigerant fluid solution for hot water heat pumps.

Graph based on the Kigali Amendment to the Montreal Protocol ratified in October 2019. Ministry for the Environment. 2017.

Ecodan QUHZ Hot Water Heat Pump for Domestic Potable Hot Water and Space Heating

The Ecodan QUHZ, with its remarkable 4kW capacity, presents itself as an ideal solution for decarbonisation projects. By utilising CO2 as a natural refrigerant, it is the number one environmental choice for domestic hot water heating and an obvious alternative to gas and direct electric systems.

The compact indoor cylinder provides the equivalent of 250L of hot water using plate heat exchanger technology drawing heat from the 200L thermal store. Separated from the stored water, instant production of hot water means there is no risk of legionella while achieving up to 70°C domestic hot water.

Space Heating Adds Further Value

Due to the dedicated pre-plumbed 200-litre thermal store, the QUHZ can provide domestic hot water as well as supply hydronic space heating through radiators, fan coils or underfloor heating. It can heat the whole home easily with temperatures up to 60°C. With combined domestic hot water, the QUHZ is the low carbon footprint option for new homes.

QUHZ Key Features

  • Rated domestic hot water mode capacity 5kW*1
  • High efficiency domestic hot water production COP=3.7*1
  • Class leading low noise operation at 43dBA outdoor unit*2
  • Energy monitoring as standard
  • No stored water draw, no risk of legionella
  • Pre-plumbed and wired for faster installation
  • No refrigerant pipework into the house, water connections only

Join the NZ Carbon Reduction Revolution

As New Zealand embraces this promising future, the adoption of heat pumps for water heating emerges as a sales opportunity ready for the taking. With each home that transitions to an eco-conscious Hot Water Heat Pump, we move a step closer to fulfilling our collective responsibility of safeguarding the environment for generations to come. The journey to carbon-neutral water heating is well underway, offering a viable way forward in the pursuit of a greener, more sustainable tomorrow.

Contact your local Sales Representative to learn more about the Ecodan Range of CO2 Hot Water Heat Pumps or click here to make an enquiry.

*1 Under heating conditions; outdoor temperature 7°C, water outlet temperature 65°C, inlet water temperature 15°C.
*2 Measured at 1m from the outdoor

R32 Hybrid is the safest and most environmentally friendly VRV/VRF architecture-type solution on the market

Friday 8th of September 2023
Water-based HVAC solutions are seen as the best way to address the challenges around the changing refrigerant landscape. Mitsubishi Electric is leading the movement with R32 Hybrid – revolutionising the way we heat and cool commercial buildings.

What is R32 Hybrid?

Simply put, R32 Hybrid replaces refrigerant with water between the Hybrid Branch Controller and the indoor units, making it the lowest carbon footprint VRF/VRV architecture-type solution available today.

Key Features

  • The rapid and continuing price rises of R410A refrigerant is placing a strain on the viability of traditional VRF / VRV systems. R32 Hybrid ensures that both customers and installers have an alternative.
  • Using R32 refrigerant, Hybrid provides air conditioning to a building with significantly lower Global Warming Potential (GWP) than existing solutions. Changing from R410A to R32 Refrigerant realizes a massive 66% reduction in Global Warming Potential for the same charge. Additionally, Hybrid has much less total refrigerant charge – so gives an overall carbon footprint reduction in the gas charge of around 85%.
  • R32 Hybrid minimises the need for expensive safety measures such as leak detection that needs costly and ongoing servicing and is specifically designed for occupied spaces where quiet, energy-efficient, simultaneous heating and cooling are valued.
  • Delivers better comfort, as air supply temperatures are milder and more stable.
  • R32 Hybrid delivers easy buildability and controllability. External pumps, valves, actuators, and controls are not required.
  • Because it uses water, some R32 Hybrid components could be reused at the end of life. So future upgrade and replacement costs could be substantially reduced and the whole of life carbon footprints further reduced.

Regulated Phase Down of CO2 Emissions

GWP is a measure of the warming potential as compared to CO2 which has a unitary GWP of 1. R32 refrigerant is zero ozone depleting and has a GWP 66% less than R410A. For example, R410A will hold 2,088 times more heat when released in the upper atmosphere than the equivalent amount of CO2 would.

R32 refrigerant is being adopted by Mitsubishi Electric as an important step in the process towards the ultimate goal of a zero ODP, zero GWP, efficient, safe and non-toxic refrigerant.

The Benefits for Consultants

  • R32 Hybrid is the lowest Global Warming Potential VRF type system on the market today, globally.
  • R32 Hybrid has the same easy buildability that attracted the HVAC market to VRF type solutions in the first place.
  • Being a hydronic-based system, with water to the indoor units, compliance issues are significantly reduced compared to direct expansion systems like VRV/VRF.
  • R32 Hybrid shares many performance benefits of a chiller / fan coil system such as milder air temperatures, more sensible cooling, easier system changes for fit-outs, and better end-of-life options.
  • Provides peace of mind as a result of using a modern, future-proofed solution with good safety and proven performance.

The Benefits for Building Owners

  • R32 Hybrid offers future-proofing and helps mitigate the risk of stranded assets.
  • It protects your investment by preventing obsolescence and potential higher costs in the long run.
  • In terms of safety, the absence of refrigerant in occupied spaces reduces liability for building owners.
  • It is a cost-effective solution, providing modern and safe commercial-grade air conditioning at a lower cost compared to a full hydronic system.
  • R32 Hybrid meets environmental standards, allowing you to showcase your commitment to sustainability to prospective clients, investors, and tenants.
  • Creating a better environment in a building increases the likelihood of attracting blue-chip tenants.

The Benefits for Contractors

  • R32 Hybrid combats the phasing down of high GWP R410A Refrigerant. The rapid and continuing price rises of R410A refrigerant is placing a strain on the viability of traditional VRF systems.
  • Thanks to the low-pressure system, the water side can be connected using simple crimp/push fittings, making for an overall quicker and easier installation.
  • Hybrid controls are pre-packaged and onboard – so BMS is not necessary. Therefore, controls integration issues can be avoided.
  • R32 Hybrid ensures that both customers and installers not only have an alternative but also get the added benefits of lower refrigerant costs, efficient performance, safety for occupants, and advanced controls.

Peace of Mind with a 3 Year Parts and Labour Warranty

Mitsubishi Electric R32 Hybrid products sold in New Zealand by Black Diamond Technologies Limited are provided with a 3-year parts and labour warranty as standard.

Click here to enquire about R32 Hybrid for your project.

Heat Swimming Pools and Spas With the Super Efficient Ecodan Hot Water Heat Pump

Thursday 20th of October 2022
Did you know Mitsubishi Electric Ecodan Heat Pumps provide highly efficient heating for swimming pools and spas too? Comprised of a durable Ecodan outdoor hot water heat pump, Mitsubishi Electric advanced controller and specialised Vaportec HXTi heat exchanger, the Ecodan Hot Water Heat Pump Pool System is the ideal and cost effective way to heat pools or spas for year-round enjoyment.

Pools are No Longer Just for Summer

Most swimming pools are only used during the summer months and remain unused for the rest of the year. Installing a hot water heat pump can enable end-users to enjoy their swimming pool year-round! The range of split PUHZ Hot Water Heat Pumps can be matched with a titanium coil heat exchanger suitable for the chlorinated water or salt water.

Easily providing flow temperatures of +35°C and operating at COPs as high as 6.79*1, the Ecodan Hot Water Heat Pump range is perfect for pool applications.

*1 For the PUHZ-SHW80VAA-BS, under operation conditions Ambient 20°C, water flow temp 35°C.

Save on Spa Pool Heating Costs

Outdoor spa

Spa pools may consume more power than many swimming pools due to higher temperatures and potential heat losses. Installing a hot water heat pump to an existing spa pool can significantly reduce heating costs. In fact, power consumption can be reduced by three to four times!



Next Generation Zubadan Technology in the Ecodan Outdoor Unit Ensures Reliable Heating in Colder Regions

Woman in spa

New generation Zubadan Inverter Technology* in the Ecodan outdoor unit provides powerful heating in cold regions where heat pump performance can diminish. With Zubadan, rated heating capacity is maintained even in outdoor temperatures as low as -15°C, with guaranteed heating operation at -25°C. Now even homes that experience snowy winters can enjoy the benefits of Ecodan.

Ecodan Swimming Pool and Spa Range

With heating capacities available up to 23kW, these split systems are ideal for pool and spa applications and require an external heat exchanger. The flexibility of this system allows the installer to position the heat exchanger separate to the outdoor unit, right where the hot water is required for both new and retrofit installations – this also allows homeowners to have the outdoor unit installed out of sight.

The Mitsubishi Electric Ecodan Packaged Heat Exchanger system for pool applications includes a specialised Vaportec HXTi, built from high density plastics and a titanium coil heat exchanger it is suitable for swimming and spa pool heating. This heat exchanger requires mounting and installation of refrigerant pipe work to the PUHZ-S(H)W outdoor unit.

The system is controlled by the advanced Mitsubishi Electric PAC-IF061B-E or PAC-IF032B-E Controller.

Packaged Heat Exchanger System

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Key Features:

Outdoor Ecodan Unit beside pool
  • Reliable year-round water heating
  • Inverter driven compressor for maximum energy efficiency
  • Water temperature up to 60°C*2
  • Operation in outdoor temperatures as low as -25°C*3
  • Compact design
  • Easy to use LCD Wall Controller with 7 Day Timer

Click here to enquire about Ecodan Hot Water Heat Pumps for pools today or contact your local Territory Representative.

*2 At ambient temperatures above +2°C.

*3 PUHZ-SHW80/112VAA and PUHZ-SHW230YKA2 Zubadan models only.

Continuously Clean Air All Year-Round

Wednesday 27th of July 2022
We are all aware that regularly cleaning indoor surfaces is an important part of keeping a healthy indoor environment, but what about cleaning the air we breathe?

It's easy to think of pollution as a problem that just exists outdoors, yet it's the same air containing traces of dust, pollen and other microscopic particles that finds its way inside our homes, offices and enclosed spaces.

To add to this, dust, pet dander, chemicals, airborne illness and allergens are common contaminants already found indoors. In fact, indoor air can be up to five times as polluted as outdoor air! Indoor air quality is an increasing concern, especially in the spaces we share with others, so finding ways to circulate and purify the air we breathe is more important than ever.

Introducing the Mitsubishi Electric ElitePure Air Purifier – Cleans Air with a Push of a Button

The ElitePure Air Purifier features a compact and portable design with high performance 4-Step Air Filtration System to intuitively remove smells, dust, allergens, and other common pollutants.

By supplying clean filtered air back into the room with a powerful 508m3/h CADR*¹, the Air Purifier maximises indoor air quality so occupants can breathe continuously clean air all year-round.

Next Generation 4-Step Filtration

The ElitePure maintains healthy air circulation indoors by pulling dirty air in and passing the air through a high performance Filtration System, in 4 steps.

These filters trap pollutants such as dust, pollen and bacteria and supply clean air back into the room. This provides the ultimate peace of mind and ensures a healthier and cleaner living environment.

Quick and Powerful Air Renewal

One of the main parameters used to establish the effectiveness of an air purifier is the CADR or Clean Air Delivery Rate. The bigger the CADR number the quicker the air purifier is able to clean the air in a room.

Featuring a CADR rating of 508m3/h*¹ the ElitePure Air Purifier is one of the most powerful air cleaning air purifiers in the market – making it the ideal solution for highly occupied spaces such as classrooms, offices or large living spaces.

Smart Search and Intuitive Air Quality Monitoring

Using a Smart Search function and movable louvres, the ElitePure Air Purifier directs airflow into five different directions and simultaneously checks the quality of the air in each direction for 30 seconds.

When the sensors detect any form of pollutants, clean air will be continuously directed to the location until they are filtered from the area.

Furthermore, the ElitePure is able to cleverly monitor air quality through three independent sensors to detect odours, PM2.5 particles and dust. Traffic light indication clearly displays the quality of air being breathed in.

Learn more about the ElitePure Air Purifier here.

*1 Tested in accordance with IEC 63086-1:2020.

The Importance of Good Home Ventilation

Monday 25th of July 2022
Creating a healthy living environment is important when renovating or building a new home – so, in addition to efficient heating and cooling, this should include the optimum amount of fresh air. Regional Sales Manager, Evan Rayner explains.

Current building regulations now demand homes to be built more airtight as they are subjected to higher insulation standards, but this often means a lack of natural ventilation and can lead to a build-up of moisture-laden stale air within the home.

The option of leaving doors or windows open to allow more fresh air to enter is often not the solution from an outdoor noise, weather or security perspective and can make heating the home less energy efficient.

Why it Pays to Ventilate

I've noticed a big shift in perceptions in recent years, ventilation is no longer just a nice to have. It's becoming an essential part of a modern build, not just in terms of meeting codes.

Mould and dampness can compromise both building materials as well as furnishings inside the home, especially in window sills, curtains and carpets. A quality balanced pressure ventilation system such as Mitsubishi Electric's Lossnay Range, is a small price to pay to protect a homeowner's overall investment in the years to come. It actually doesn't cost a lot to buy or to even run a ventilation system and I know from experience with our Mitsubishi Electric Lossnay Systems they will likely last you over 20 years.

I've been to a house that was only two years old with mould and mildew issues. It was so bad that you could see the lines of timber joins on the wall, through the wallboard. It was obvious the occupants weren't opening their windows to let enough fresh air in – what a waste of brand new furnishings and materials for what would have likely been less than 1% cost of the overall build to have a ventilation system.

After installing a Mitsubishi Electric Lossnay Fresh Air Heat Recovery Ventilation System into the property, those lines were gone within the week and a month later the owners described it as living in a completely different house.

Mitsubishi Electric: Ventilation Solutions to Suit Most New Zealand Homes

Mitsubishi Electric offers a full Lossnay Fresh Air Heat Recovery Ventilation range from in-ceiling whole home heat recovery solutions like the LGH or Vertical range, to ducted and wall mounted single room VL100 models.

Lossnay can even be integrated with a Mitsubishi Electric Ducted Heat Pump System for increased energy savings – recovering the energy from stale air to pre-heat or pre-cool incoming fresh air, reducing the amount of additional heating or cooling required. A combined ducted system can be a cost-effective option for homeowners.

But not every home needs a large ducted unit and sometimes the roof space doesn't allow for one. This is where our range of single room models are a hit as they allow Lossnay Ventilation to be installed in apartments, studios and spaces with limited roof space.

Lossnay Single Room is available as either a Ducted Unit or as a Wall Mounted model. Our Lossnay range means we can find a solution to suit most New Zealand homes.

Ventilation is an Investment in your Health and Home

We all know cooking, washing and condensation can make a home damp, but the biggest contributor is your breath and there is no avoiding that!

Mitsubishi Electric's Lossnay Fresh Air Heat Recovery Ventilation range is not only a small price to pay to protect end user's investment, it's vital for the health of the home and the wellbeing of the occupants. Click here to learn more about the range.

Jet Towel High Speed Hand Dryers

Monday 18th of July 2022
Over the past couple of years, the global pandemic has put the spotlight on everyday hand hygiene – not only on how we clean our hands, or how regularly, but the way we dry hands too.

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Clean, Dry Hands are Safe Hands

The Mitsubishi Electric Jet Towel Hand Dryer range is zero contact, ultra-quiet and takes only a fraction of a second to detect your hands for maximum hygiene standards – making it the ideal solution for commercial restrooms.

Our Jet Towel range is an easy addition to a project that may already have Mitsubishi Electric heating, cooling or ventilation systems specified, and is popular in offices, hotels, restaurants, shopping centres, schools and other public facilities across New Zealand.

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Contactless Hygiene – Drying Hands More Quietly, More Quickly and with Less Energy

The engineers at Mitsubishi Electric have simultaneously achieved an amazing 9-12*1 seconds drying performance and the lowest power consumption in Jet Towel history.

The Jet Towel Hand Dryer range features a smarter nozzle design that reflects the perfect balance between airspeed and volume; for even greater energy efficiencies. Furthermore, the plastics used in Jet Towels curb the growth of bacteria on the surface. The secret is the metal ions added into the resin, which work to inhibit the functions of bacteria and reproductive growth.

There are two styles available – the Jet Towel Slim and Jet Towel Smart. And with a range of colour options available, it means that there is a stylish solution to fit any commercial bathrooms aesthetic.

Say Goodbye to the Costly Mess of Paper Towels

The cost of constantly replacing paper towels each day can be staggering. Because Jet Towels only use electricity to operate, they can eliminate the cost of paper towel maintenance and instead utilise high-speed air to quickly and effectively dry hands.

As a result, they are the more environmentally friendly, cost-effective and hygienic solution for commercial bathroom spaces across schools, universities, office spaces, hotels, shopping centres and other public facilities across New Zealand.

In addition, switching to a Jet Towel not only keeps commercial bathrooms cleaner but also sends a positive message to users about a facility’s attitude towards the environment.

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Quiet Operation Where it Matters Most

Noise is a major consideration when choosing a hand dryer for any restroom, especially in environments such as schools, universities and hospitals, where peace and quiet is a necessity. Mitsubishi Electric has developed the Jet Towel to dry hands as quickly and quietly as possible. Over 20 years of experience combined with new technological developments have produced Mitsubishi Electric’s quietest Jet Towels yet, at a mere 56dBA using the standard speed setting.

Jet Towel Smart

  • A compact and powerful ‘hands under’ dryer that offers the lowest power consumption from the Jet Towel Range. The large drying area coupled with a 0.1 second response time allows for a comfortable and satisfying user experience every time.
  • Available in White and Silver colour choices to fit any bathroom aesthetic
  • High-speed drying from 9 seconds
  • Smart tilted roof design
  • Impressively quiet operation at 58dB
  • Energy-efficient performance from 490W
  • Antibacterial surfaces
  • 15cm wide nozzle enables both hands to be dried simultaneously with ease

Jet Towel Slim

  • A sleek and stylish ‘hands-in’ dryer that is our quietest ever at just 56dBA.*2
  • Available in Silver, White and Grey colour choices to fit any bathroom aesthetic
  • High-speed drying from 9 seconds
  • Child-friendly design
  • Amazingly quiet 56dB operation
  • Energy-efficient performance at just 550W
  • Antibacterial surfaces
  • 0.8L drain tank keeps floors clear and dry
  • Antibacterial surfaces
  • 15cm wide nozzle enables both hands to be dried simultaneously with ease

Let’s keep our world safe with contactless hygiene. By using this eco-friendly hand drying solution that is engineered to last, we can each play our part in going green and going clean at the same time. Enquire here to learn more.

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*1 Based on JT-SB216JSH2 specifications.
*2 When operating in Standard Mode.

LGH-RVS Lossnay Sensible Heat Recovery Ventilation Range

Monday 18th of July 2022
The new LGH-RVS Sensible Lossnay range from Mitsubishi Electric features a non-permeable Lossnay core, allowing you to bring fresh filtered air in and draw stale air out from high moisture areas, with the added benefit of sensible heat recovery to maximise efficiencies.

The Ultimate Heat Recovery Ventilation System

The LGH-RVS Lossnay range is perfect for higher humidity environments such as bathrooms, kitchens and laundries as well as commercial applications such as gyms, healthcare centres, schools and offices. Boasting a range of enhanced features including an integrated bypass damper for free cooling, optional CO2 sensor control and easy control interlock with Mr Slim and City Multi systems – it’s the ultimate heat recovery ventilation system for all areas.

Easy Installation

Being lightweight is one of the most important factors for installation. The light chassis of the LGH-RVS Series can provide a huge advantage in terms of cost and safety of installation.

Easy Drain Piping

The unit features one drain pipe terminal for both supply air (SA) and exhaust air (EA). A condensate trap is not required as the LGH-RVS unit features an internal backflow prevention device and an inclined drain pan, which not only helps with installation, but also reduces the risk of mould and odour.

Flexible condensate pipework and a 360° swivel drain pipe connection means installation can be incorporated into building designs with the ability to avoid obstructions and be set out of the way against walls.

Low Noise Operation and Energy Efficiency

Starting from a super quiet 18dB(A)*, the LGH-RVS Series operates with incredibly low noise thanks to a specialised sirocco fan produced by Mitsubishi Electric. This unique fan balances airflow and static pressure to minimise noise levels. The series also incorporates a high-efficiency motor to reduce power consumption.

Optional Parts for Enhanced Operation

Filter Options

Three filter options offer optimum indoor air quality solutions for projects. Ranging from Standard to Advanced High-Efficiency types. All filters are ISO and EN779:2012 certified.

The easy to remove maintenance panel allows for simple access to the filters for maintenance or replacement.

LGH-50RVS-E LGH-80RVS-E LGH-100RVS-E
Standard Filter
Non-woven fabrics, G3 EN779(2012) certified
PZ-S50RF-E PZ-S80RF-E PZ-S100RF-E
Medium-efficiency Filter
Pleated filter, M6 EN779(2012) certified
PZ-S50RFM-E PZ-S80RFM-E PZ-S100RFM-E
High-efficiency Filter
Pleated filter, M8 EN779(2012) certified
PZ-S50RFH-E PZ-S80RFH-E PZ-S100RFH-E
Included piece/set 1 set (2pcs) 1 set (2pcs) 1 set (2pcs)

Optional CO2 Sensor

A Mitsubishi Electric CO2 sensor connected directly to the LGH-RVS unit optimises the fan speed according to the levels of CO2 detected, ensuring indoor air quality is maximised and total heat exchange efficiency is improved. There are two sensor options available, a wall mounted type or built-in.

Silencer Ducts

In facilities and applications requiring ultra-quiet operation, the optional silencer duct is the ideal solution. It contains glass wool and attenuates sound power by absorbing airflow and fan noise.

The All-Area Ventilation Solution

For more information about the LGH-RVS Sensible Lossnay Series, enquire here.

* On lowest fan speed, measured at 1.5m from centre of unit in an anechoic chamber.

Older Articles

How to Minimise Indoor Sound Levels with the Vertical Lossnay

Thursday 14th of July 2022
The Vertical Lossnay Fresh Air Heat Recovery Ventilation System is the ideal solution to protect homeowners from future consent conditions around indoor noise management.

VL100 Unit in Laundry

Councils around New Zealand are starting to introduce consent conditions around the management of indoor noise levels in habitable spaces. With housing density increasing, opening windows to naturally ventilate a home is often not possible or leads to sound levels that exceed requirements outlined in district plans and consent processes. To protect a homeowner from these and other future compliance changes, they should consider installing a Mitsubishi Electric low-noise Vertical Lossnay Fresh Air Heat Recovery System.

Urban Density is on the Rise in NZ

Consents for townhouses, flats, and units are growing at over eight times the rate of standalone dwellings (46.6% versus 5.7% for the year ended April 2022)*1. These new figures are indicative of the changing residential landscape across New Zealand towards more higher density living.

New Zealanders can also expect to see more medium density homes being built across more of our major cities thanks to the government’s new Medium Density Residential Standards. The standards, which come into full effect from August 2022, will enable people to build up to three units and three storeys on most sites in Auckland, Hamilton, Tauranga, Wellington, and Christchurch without the need for resource consent.

Aparments

Homeowners are Insulating from Noise in Mixed-Use Environments

Medium density housing developments are increasingly being built in mixed-use environments that contain both residential and commercial premises (such as office, retail or hospitality) or close to major community infrastructure (such as airports or ports). So what does this mean for homeowners and occupants residing in these areas?

Issues can arise when occupants become affected by the noise from existing activities already occurring in the area – this is referred to as reverse sensitivity. To address the effects of reverse sensitivity, it is more practical for the homeowner to insulate the home from noise, than it is for existing commercial businesses to comply with acceptable residential noise levels.

Specific Precautions for Indoor Noise Limits Introduced

Section 16 of the Resource Management Act 1991 places a general duty of care on all occupiers to adopt the Best Practicable Option (BPO) to ensure noise emitted from any site does not exceed a reasonable level. Furthermore, many district plans now require specific precautions to be taken by the noise receiver to avoid adverse noise effects.

The Hamilton City Council for example, have set noise limits for the construction of new buildings in noise-sensitive areas such as the Central City Zone and subdivisions within the stipulated contour line from the Waikato Expressway. These limits ensure the building containing the noise sensitive activity is designed and constructed to meet an indoor design sound level of 35dB LAeq(24hr) in bedrooms and 40dB LAeq(24hr) in all other habitable rooms.*2

Mother watching son studying

Why Does Ventilation Need to be Considered?

The G4 Clause of the New Zealand Building Code requires habitable spaces in a home to be provided with adequate ventilation consistent with their maximum occupancy and intended use.

Occupants of medium density homes, particularly in mixed-use environments are often unable to naturally ventilate their home due to noise and security issues that arise from opening windows.

Offices with business people walking outside

While acoustically insulated windows can help reduce noise, it is not enough to stop indoor sound targets being exceeded in rooms with open windows. This is where a mechanical ventilation system should be installed that complies with the requirements of the G4 Clause.

Person opening window

Vertical Lossnay Fresh Air Heat Recovery Ventilation – an Ideal Low-Noise Solution

The Mitsubishi Electric Vertical Lossnay Range is designed specifically for the New Zealand housing market and makes energy efficient, super-quiet ventilation accessible to even more homes such as townhouses and apartments.

From an ultra quiet 15dB*3, the Vertical Lossnay can operate well within indoor noise limits that are starting to be introduced in district plans and consents (such as the Hamilton City Council example). By installing the low-noise Vertical Lossnay system a homeowner can have greater protection against future compliance challenges.

Furthermore, because of the slimline, vertical upright design, the Lossnay Ventilation System is not limited to an in-roof installation. Apartments and townhouses often have limited roof space, but with the Vertical Lossnay’s small upright footprint it can be placed in the garage or a cupboard in the kitchen. Now whole home ventilation can be installed and integrated in the overall building design without limitations.

Talk to your local Territory Manager today about how the growing demand for ventilation is an opportunity to maximise sales, and capture additional revenue for your business.

*1 According to Stats NZ Building consents issued: April 2022 data (https://www.stats.govt.nz/information-releases/building-consents-issued-april-2022/).
*2 According to Hamilton City Council District Plan: 25.8.3.10 Noise-sensitive Activities (https://www.hamilton.govt.nz/our-council/council-publications/districtplans/ODP/chapter25.8/Pages/25-8-3-Rules-Specific-Standards.aspx).
*3 On fan speed 1. Sound pressure level at 3m.

Lounge with Lossnay Ventilation System

e-Series Modular Chillers – The Efficient Process Heating and Cooling Solution for Food and Beverage Industries

Wednesday 23rd of March 2022
When storing, fermenting and processing food and beverages, temperature control is often the key to ensuring overall product quality. While chiller systems have been used for decades for process heating and cooling, there is an increasing pressure on energy efficiency and running costs - those in the horticulture, viticulture and food manufacturing industries now need a low-carbon and cost effective option to meet the demands of today.

The e-Series Modular Chiller Range from Mitsubishi Electric is a modern update on a traditional chiller system, offering advanced temperature control, unparalleled efficiencies and a wide operating temperature range, all in a flexible modular format that is ideal for New Zealand Food and Beverage businesses such as wineries, breweries, orchards, dairy factories and other commercial stores.

Disrupting the Status Quo of Chiller Hire

Often directed by season, produce growers and wineries will hire their large capacity chillers in peak production months to avoid the cost of maintenance, running energy costs when requiring low loads in off-peak months and reduce the space needed for a permanent plant room to house the chiller.

However, with the energy efficient and flexible Mitsubishi Electric e-Series Modular Chiller Range, it can now be cost effective and convenient to own rather than hire to meet processing needs.

Featuring a Modular Format to Support Growth

Instead of a large, single chiller, up to six smaller modules can be connected together to provide the same level of output. This modular format and compact design reduces plant space requirements as well as simplifying logistics and installation.

Model kW output per module Maximum kW output with 6 connected modules
P900 90kW 540kW
M1500 150kW 900kW
M1800 180kW 1,080kW

Furthermore, the modular nature of the chillers means that owners can upscale as their operation grows over time without having to invest in a large capacity unit up front to compensate for potential expansion.

Optional Built-in Header Piping Reduces Space Requirements and Offers Easier Installation

Header pipes, which are required to connect units together, can be built into the unit. This feature reduces the space requirements needed for a chiller plant. Multiple units are easily connectable by the internal headers, eliminating the need to procure water pipes for connecting the units and reducing installation work.

Easy Maintenance without Delaying Production

When installed using the inbuilt headers, individual modules can be isolated from the water circuit thanks to the inbuilt isolation valves. This allows for maintenance to be carried out while the other modules remain in operation.

This is crucial in peak seasons when a stop to controlled cooling can result in loss of produce and revenue. During vintage season when wineries have to harvest thousands of tonnes of produce in a short timeframe, if the picked grapes warm up too much they'll start to ferment early, which ruins the flavour and quality of the wine.

Wide Operating Temperature Range

Chillers are relied upon in food and beverage industries to keep a constant temperature, especially in factory environments that can cause hot indoor temperatures.

It is imperative that dairy milk is cooled and remained constantly chilled to a level where bacteria cannot grow – in fact the New Zealand Government requires raw milk supply to be kept at or below 6°C* prior to manufacturing. This allows dairy products to be transported, stored, and manufactured without spoiling and ensuring product is safe for later consumption. Breweries also rely on particular temperatures for fermentation; yeast must not get too hot (over 40°C) or it will die and taint the flavour of the beer.

The Inverter controlled fan and compressor of the e-Series Chiller enables precise control of outlet water temperatures, resulting in stable operation. M1500 and M1800 models deliver chilled water as low as 4°C, while with Glycol the P900 delivers chilled water down to -10°C without freezing. Both models have options to deliver heated water up to 55°C.

* Ministry of Primary Industries, 'Animal Products Notice: Raw Milk Products Specifications' 10 September 2020. https://www.mpi.govt.nz/dmsdocument/1005-Animal-Products-Notice-Raw-Milk-Products-Specifications

The P900 e-Series Model Provides Sub-Zero Cooling

The P900 supports a wider outlet water temperature setting down to -10°C without freezing through the use of Glycol. This means in a winery application, an e-Series P900 Chiller can chill wines to sub-zero temperatures without freezing the insides of the winemaking vessel.

Energy Efficient Performance with Advanced Controls

Typical chiller control systems allow units to run at a maximum capacity while other units are in standby during part load. The Mitsubishi Electric e-Series Chiller Range is designed to optimise chiller compressor frequency based on the number of connected units, maintaining the highest part load efficiency possible.

When the Overall System Load is 50%

Typical Chiller Control

e-Series Modular Chiller Range with Optimum Frequency Control

With up to six units operating in one bank, this function improves system efficiency when operating at low to medium loads. Furthermore the run time of each unit is equalised by the control system, this prevents uneven wear on the units and extends the lifespan class= of the system.

The Versatile e-Series Modular Chiller Range

With system capacities available from 90kW up to 1080kW, there is an e-Series Modular sure to suit any application.  

Model Nominal Capacity Refrigerant
EACV-P900YA-(N)-(BS)
Cooling-only Chiller
90kW per module, up to 6 modules at 540kW R410A
EAHV-P900YA-(N)-(BS)
Reversible Heat Pump
90kW per module, up to 6 modules at 540kW R410A
NEW! EACV-M1500YCL-(N)-(BS)
Cooling-only Chiller
150kW per module, up to 6 modules at 900kW R32
NEW! EAHV-M1500YCL-(N)-(BS)
Reversible Heat Pump
150kW per module, up to 6 modules at 900kW R32
NEW! EACV-M1800YCL-(N)-(BS)
Cooling-only Chiller
180kW per module, up to 6 modules at 1080kW R32
NEW! EAHV-M1800YCL-(N)-(BS)
Reversible Heat Pump
180kW per module, up to 6 modules at 1080kW R32

(BS) Coastal Protection and (N) built-in header type options available.

Available today, contact your Regional Sales Engineer to discuss how the e-Series might be the process cooling solution for your next project or enquire here.

The High Efficiency i-FX2-W-G04 Water Cooled Chiller and Heat Pump Range

Friday 11th of March 2022
Committed to supporting the creation of a greener tomorrow, Mitsubishi Electric has designed the i-FX2-W-G04, a complete chiller and heat pump range optimised for HFO refrigerant R1234ze, with nearly zero environmental impact.

By utilising low global warming potential HFO refrigerant R1234ze, and featuring full-inverter technology for high efficiency operation, the i-FX2-W-G04 is the ideal solution for commercial comfort applications that require variable load operation, space efficiency and minimal environmental impact such as offices, hospitals and universities. Furthermore, as the unit is designed for inside installation, the i-FX2-W-G04 Chiller is ideal for locations close to sea environments as expensive anti-corrosion treatments can be avoided.

The new chillers cover a range from 400kW to 1,245kW, with all sizes using VSD screw compressors on two completely independent refrigerant circuits. Also included are electronic expansion valves, a high performing shell and tube condenser as well as tube hybrid (flooded/falling film) evaporators.

High Efficiency Operation

The new i-FX2-W-G04 inverter-driven water-cooled chiller and heat pump range from Mitsubishi Electric is engineered to be at the forefront of green innovation in comfort cooling and heating applications. By combining the latest technologies with green R1234ze HFO, the i-FX2-W-G04 provides excellent operating efficiencies.

Full capacity cooling efficiencies up to 5.13 EER*1
Seasonal cooling efficiencies up to 8.65 SEER*2

*1 Values in accordance to EN14511 EER 12/7°C, 30/35°C
*2 Seasonal efficiencies in accordance EU N. 2016/2281

All-Round Sustainability

By combining exceptional annual efficiency with the use of low GWP refrigerant, i-FX2-W-G04 tackles both indirect (due to the primary energy consumption) and the direct global warming impact. Resulting the perfect choice for any new, forward-looking heating and cooling system.

The environmental impact of refrigerants is measured by two parameters:

  • Ozone Depletion Potential (ODP)
  • Global Warming Potential (GWP)

While in the past focus was on reducing ODP values to 0, new regulations encourage a greater emphasise on reducing the level of GWP.

These new chillers and heat pumps cover a range from 398kW to 1,241kW, with all sizes using VSD screw compressors on two completely independent refrigerant circuits. Also included are electronic expansion valves, a high performing shell and tube condenser as well as the new Hybrid Falling Film Evaporator.

Wide Operating Range

The standard units have a chilled water temperature range from 4°C up to 15°C with a corresponding condenser water range between 20°C up to 52°C.

The option of adding a High Water Temperature (HWT) Kit can further extend the unit’s operating range to reach condenser water temperatures of up to 72°C, this is ideal for hot water heat pump applications or chiller installs in high ambient temperature locations.

VSD Screw Compressors

The VSD screw compressors ensure perfect matching of capacity to load. With integrated frequency converter and Variable Vi technology the unit can be accurately optimised to the demand.

Two independent refrigerant circuits offer reliability, easy maintenance as well as a low continuous minimum capacity ratio.

Variable Speed Drive
Integrated and compact frequency converter, refrigerant cooled, for outstanding seasonal efficiency and wide capacity regulation.

Smart Variable Vi logic
The integrated Vi slider adapts the internal geometry to the current operating condition, ensuring the best efficiency.

Extra Durability Achieved with Dedicated Components:

  • Envelope control function, 3-stage warning and alarm system, safe-torque-off function
  • Carbon steel bearings granted for a lifetime of over 150.000 hours

Featuring a New Hybrid Flooded/Falling Film Evaporator Designed and Manufactured by Mitsubishi Electric

Combining exceptional efficiencies and reduced refrigerant charge, the new hybrid falling film evaporator used in i-FX2-W-G04 is at the forefront of green innovation.

  • Innovative approach aligned with the best flooded technologies
  • Optimised design ensures low pressure drops across the range
  • 50% refrigerant charge reduction compared to a traditional flooded evaporator
  • Application flexibility thanks to its configurability including working pressure options and water connection locations.

Acoustic Options

The i-FX2-W-G04 Range can be supplied with acoustic treatment. Silent operation with an optional compressor enclosure (-6dBA), or fully integral acoustic enclosure to further reduce sound levels (-16dBA).

Electronic Control W3000+

W3000+ control is available with the new KIPlink (Keyboard In your Pocket) user interface. Based on Wi-Fi technology, it allows operation of the unit directly from the smartphone or tablet.

Integration into third party BMS systems using ModBus, BACnet, BACnet-over-IP, LonWorks, Konnex, SNMP protocols supervision is possible. A dedicated wall-mounted keypad option can be used for remote control of all the functions.

Group Controls with Dynamic Master

When connected to a group of chillers, the unit’s LAN functions can manage load sharing, sequencing, active redundancy, priority of resource activation and alarm management. The system's stability is ensured even in case of alarm or malfunctioning thanks to the Dynamic Master logic.

Variable Primary Flow

Variable Hydronic Flow control is standard (VPF.E function). Variable pump speed management based on load demand furthers energy savings and the variable flow ensures the units also function in critical working conditions.

Additional Options and Accessories

  • Set-point adjustment via 4-20mA or dual set-point
  • Compressor enclosure/Integral Acoustic enclosure
  • Load limit and demand limit
  • High Condenser Water Temperature (HWT) Kit
  • High Level BMS Interface
  • Energy monitoring
  • Internal Leak Detection control
  • Removable electrical panel
  • 16 Bar pressure on water side evaporator and/or condenser
  • Evaporator and/or condenser hydronic connections on opposite sides
  • 4 pass condensers

For more information contact your Regional Applied Products Sales Engineer or click here.

Why is CO2 Refrigerant the Future of Hot Water?

Monday 13th of December 2021
The F-gas Regulation aims to reduce F-gas emissions by two thirds of 2010 levels by 2030, by improving the leak-tightness of equipment, promoting the use of more environmentally friendly alternatives to F-gases and capping sales of HFCs on the EU market through an HFC phase-down. HFC target limits are already in place in Europe which has a dramatic effect on global manufacturers and the phase out of R410A has already started. HFC EU limits for single split air conditioning (<3kg of F-gases) is GWP = 750 by the year 2025.

*Based on the Kigali Amendment to the Montreal Protocol ratified in October 2019. Ministry for the Environment. 2017. 7. Wellington: Ministry for the Environment.

The R410A Phasedown

As a result of this phasedown, we are seeing refrigerants with lower GWP (in particular R32) in many air conditioners and hot water heat pumps. It won’t stop there, that’s just the interim refrigerant before moving to natural gases, including some controversial flammable gases such as Propane.

We do have an option that is here already, CO2 refrigerant. It is a natural gas. It is what we breathe out into the atmosphere and it's what feeds plants to grow. CO2 can also be used as a naturally occurring, non-flammable and stable refrigerant fluid solution for hot water heat pumps.

It is non-toxic (at reasonable concentrations) and with a Global Warming Potential (GWP) of 1, it is also the base refrigerant that all other refrigerants GWP numbers are based on and will future-proof the way homes and businesses heat water.

Mitsubishi Electric CO2 Hot Water Heat Pumps are Leading the Way

It's a progressive move for most manufacturers to change refrigerant to a lower GWP - Mitsubishi Electric has already begun to take the lead with hot water heat pumps utilising CO2 refrigerant.

Ecodan QUHZ Hot Water Heat Pump for Domestic Potable Hot Water and Space Heating

The QUHZ Ecodan is an advanced hot water heat pump that can provide both domestic hot water as well as supply hydronic space heating through radiators or underfloor heating.

Utilising CO2 as a natural refrigerant, it is the number one environmental choice for domestic hot water heating and an alternative to gas and direct electric systems.

The Ecodan QUHZ Hot Water Heat Pump is revolutionising central heating and domestic hot water technology in New Zealand.

Ideal for New Build Townhouses due to Low Noise Operation

With space often being a premium on new build development sites, Ecodan QUHZ will operate discreetly where dwellings are in close proximity to each other. The QUHZ Outdoor unit provides very quiet operation as low as 43dBA (SPL).*2

Specific outdoor unit design features enable quiet operation to be maintained in all modes of operation and all ambient conditions as well as allows improved flexibility for the installation locations. The Ecodan QUHZ will help residential areas that are particularly sensitive to outdoor noise to benefit from renewable heating technology.

A Smart Move for Developers

Not only is the outdoor unit quiet, the compact indoor cylinder provides the equivalent of 250L of hot water using plate heat exchanger technology drawing heat from the 200L thermal store. Separated from the stored water, instant production of hot water means there is no risk of legionella while achieving up to 70°C domestic hot water.

In addition, the QUHZ can heat the whole home easily with temperatures up to 60°C for radiators or underfloor heating. With combined domestic hot water, the QUHZ is the low carbon footprint option for new homes. By future proofing and adding value to the property, it is the number one choice for developers, architects and builders alike.

QUHZ Key Features

  • Rated domestic hot water mode capacity 5kW*1
  • High efficiency domestic hot water production COP=3.7*1
  • Class leading low noise operation at 43dBA outdoor unit *2
  • Energy monitoring as standard
  • No stored water draw, no risk of legionella
  • Pre-plumbed and wired for faster installation
  • No refrigerant pipework into the house, water connections only

QAHV is the Commercial Solution for Generating High Temperature, High Volume Hot Water

There’s usually an argument to say that heat pumps can’t produce the higher temperatures that gas boilers can achieve, but with CO2 refrigerant, temperatures up to 90°C can be produced in ambient outdoor temperatures as low as -25°C.

The high discharge temperature from compressing the CO2 gas means we can now achieve high temperatures and achieve high efficiency because the CO2 refrigeration cycle works best with a large temperature difference. For sanitary hot water production this technology is the way forward, to be able to reach high temperatures for wash downs, leisure facilities, potable hot water and for the industry to seriously meet carbon reduction targets. QAHV is certainly the solution.

QAHV Key Features

  • Rated Heating Capacity of 40kW
  • High efficiency (Achieved COP 3.88*3 )
  • Supplies high temperature hot water of up to 90°C
  • Operable even at low out door temperature of -25°C
  • Utilises natural CO2 refrigerant which has zero Ozone Depletion Potential (ODP) and has a Global Warming Potential (GWP) of 1
  • Uses a unique twisted and spiral gas cooler to enhance energy efficiency
  • Compact dimensions, minimising plant space
  • 16 units can be grouped together to form a bank of 640kW rated heating capacity

The Shift to CO2 is Happening Now

We will see more CO2 hot water heating products in the future and these products will no doubt become the norm for generating potable hot water and efficiently heating our homes.

Reach out to your local Sales Representative to learn more about the Ecodan Range of CO2 Hot Water Heat Pumps.


*1 Under heating conditions; outdoor temperature 7ºC, water outlet temperature 65ºC, inlet water temperature 15°C.
*2 Measured at 1m from the outdoor unit.
*3 Under heating conditions; outdoor temperature 16ºC, water outlet temperature 65ºC, water inlet temperature 17°C.

6 Key Ventilation Tips for Homeowners to Consider

Monday 13th of December 2021
Creating a healthy environment is important when renovating or building a new home. Your customers will value your advice and expertise in all aspects of ventilation. Make this your competitive advantage and share the following 6 tips with them, to ensure they invest in the best ventilation solution for their health and home.

1. Talk to a ventilation expert early in a new build planning process

It can be easy for homeowners to jump straight into the design aspect of planning, however this can often be the first mistake made. Too often people consider ventilation once their build is in progress or even complete and find their plans make installation difficult, more costly and often result in a make do application that isn't what they were initially after.

By bringing in a ventilation expert in the early planning stages you can save future headaches. Always ensure a ventilation system is integrated into plans to maximise efficiencies. Ducted air conditioning with combined Lossnay Ventilation is a perfect example of something that is best to bring in an expert early in the process for. Installation, ducting and wiring is far easier to manage before the ceiling is put in place, allows flexibility with outlet placement and Lossnay's heat recovery will add further efficiency to the air conditioner when in operation.

2. Make use of what is free with heat recovery technology

Ventilating our indoor spaces is more important than ever, but they should also be as energy efficient as possible.

Mitsubishi Electric's unique heat recovery technology recovers up to 85% of the heat energy from the outgoing stale air which is then used to pre-warm (or pre-cool) incoming fresh air. Why not take that warm air from the sunniest side of the house to pre-warm the outdoor air being filtered in? Or use the air you have already paid for to heat.

Heat recovery means any heating or cooling appliance does not have to work as hard to reach the desired room temperature – providing savings on energy bills.

3. Place ventilation ducts and grilles to maximise efficiency

Placement of ducts and grilles are almost as important as the system behind it.

Often ventilation systems are not working as efficiently as possible because they are drawing air from the coldest parts of the home and not taking advantage of those areas which are naturally warmer. It goes back to heat recovery, the best thing you can do is make use of that free energy.

4. Not all air is created equal. Fresh outdoor air rather than air from the roof-space is key to ensuring indoor air quality

To achieve compliance with the Ventilation Standard NZS4303:1990 of the New Zealand Building Code, a building's ventilation system is required to draw fresh air from the outside in order to achieve acceptable indoor air quality.

Not all air is created equal. The absence of significant air movement common in attics means the air is likely to be stale. In addition, build-up of dust, dirt and other contaminants such as mould, insect and rodent droppings makes this air much harder to filter before it is distributed through your home - it's not what you want to be breathing in.

All products in our Lossnay Ventilation Range draw fresh air from outside and filter this to maximise air quality. While systems that draw from the roof are less common since the standard was introduced, these systems can still be found in the market to target those wanting a retrofit solution for an older home.

5. Meet the requirements of the home, not just the Building Code

The New Zealand Building Code often asks for the bare minimum and by using this as a benchmark, the actual ventilation requirements of the property might not be met. Our code in New Zealand asks for 0.35 air changes per hour, however if you are really wanting to maximise your homes air quality this should be higher. When designing a Lossnay system, authorised Mitsubishi Electric installers refer to the higher UK standard of 0.43-0.5 air changes per hour.

Capabilities like this are important as they can easily be overlooked by price, but a low performing system can result in unmet expectations and ultimately a wasted investment.

6. Complement your system with a separate exhaust fan for wet areas such as bathrooms and laundries

While many systems including Lossnay can draw from moisture laden air, to get the most energy efficiency out of your heat recovery system, homeowners should install a separate Mitsubishi Electric Ducted Exhaust Ventilation Fan in wet areas such as bathrooms. While a bathroom can be warm during showers, when not in use they are often the coldest rooms in the home - so why combine that cold air to the air you are hoping to recover heat from and reduce the overall temperature you can recover? Exhaust fans do an excellent job at removing steam and moisture quickly and are turned off when not needed, saving energy use.



Click here to learn more about our Ventilation product range. Alternate Text

­­­Black Diamond Technologies Limited – Celebrating 40 Years in New Zealand

Tuesday 7th of December 2021
On the 9th of November 2021, Black Diamond Technologies Limited (formally known as MELCO) reached an important milestone – 40 years of providing New Zealanders with the leading edge technologies of Mitsubishi Electric products into New Zealand homes and businesses.

To celebrate, we share our story from the beginning and our thoughts on how we will continue to shape the industry over the next 40 years and beyond.

In the Beginning

Right from the beginning Mitsubishi Electric manufactured world leading products founded on two key principles: quality and technological innovation. Video Recorders, Colour TVs and Audio Systems were examples of categories where Mitsubishi Electric led the way. Yet in the early 80's those products were not represented in New Zealand, in fact the brand was unknown here.

Ron Woodrow Company Founder

The foresight that led to the introduction of Mitsubishi Electric products in New Zealand by MELCO / BDT came from its founder Ron Woodrow.

Ron began his career at EMI in Wellington. With a keen interest in consumer electronics his attention was drawn to how video recorder technologies were advancing, particularly by Japanese manufacturers. The potential he could see convinced him to take a bold step. Leaving the security of EMI in 1981, Ron along with Pat Feehan set up a new venture called MELTRON to import Mitsubishi Electric products.

Starting off with video recorders, the product range quickly grew to include TVs, Microwaves and computer products.

Impressed with the success, after 1 year Mitsubishi Electric Japan became a 51% partner in the venture and MELTRON was renamed MELCO (Mitsubishi Electric Company). The business grew quickly, with its head office in Wellington; branches were also opened in Christchurch and Auckland.

In 1992, with the departure of Pat Feehan, the then Divisional Manager Ken Lilley purchased these shares and became Director.

Key Defining Mitsubishi Electric Products

The Black Diamond Video Recorder

From the first ever Mitsubishi Electric video recorder that was brought into the country in 1981, the HS-330 Model (pictured below), the brand grew from strength to strength.

In 1988, a new range was launched that featured a distinctive black slimline design and was packed with a host of advanced features. No other video recorder had more up-to-date features for the price. This range became known as the Black Diamond Series and was so popular, that from 1988 to 1998 it was New Zealand's best-selling video recorder brand. The advertising created around the Black Diamond name proved so powerful that it became a sub-brand in its own right, and was even used by other Mitsubishi Electric distributors internationally.

Diva Large Screen Television

1984 saw the introduction of Mitsubishi Electric Televisions. Just like video recorders, it did not take long for New Zealanders to aspire to also have a Mitsubishi Electric TV take pride of place in their lounge. As a result, from 1993 to 1996, the large screen feature packed Diva Collection became New Zealand's best-selling TV range.

The Cube Microwave

Another key defining Mitsubishi Electric product was the Cube Microwave. Introduced in 1985, its unique shape was a real conversation starter and became so popular; kitchens in the day had cabinetry purpose built to fit “the Cube”. As a true mark of Mitsubishi Electric quality, we still receive calls from customers with working Cube Microwaves that require rehoming, 36 years on!

Our Advertising – the “Don't you wish?” Campaign

From a marketing perspective, the philosophy has always been to be the aspirational brand and to have Mitsubishi Electric product seen as the number one choice in every category it contested.

This has involved creating messages that position Mitsubishi Electric products as stylish, advanced and very user friendly. For many years the memorable tag line for virtually all our products was “Don't you wish you had a Mitsubishi?”

The Only Constant is Change

In a business as dynamic as consumer electronics, change is inevitable. Organisations must develop resilience and flexibility to adapt. In 1997 Mitsubishi Electric underwent changes that saw it announce a global move away from TV and video recorder production. These had been important categories for MELCO / BDT however, like its Japanese partner; the New Zealand Company would also have to change. In 1998 the company re-established itself with Mitsubishi Electric, energy efficient, compressor driven products. It did not take long for the brand to firmly establishing itself in the air conditioning, dehumidifier and refrigeration markets, where it is now one of the major and leading players.

Part of this re-invention was also a change in company structure where Ron Woodrow and Ken Lilley bought out Mitsubishi Electric's 50% stake. With this change to 100% New Zealand ownership, MELCO changed its name to Black Diamond Technologies.

A New Generation of Mitsubishi Electric Products

Through the exclusive partnership with Mitsubishi Electric, BDT has enjoyed the advantages of access to category leading technology and energy efficient, environmentally sustainable products with unique features to improve people's lives.

As a result, the company now specialises in the marketing and distribution of Mitsubishi Electric products including Air Conditioning and Heat Pumps, Ventilation, Hot Water Heat Pumps, Dehumidifiers, Refrigeration, as well as a full range of commercial building HVAC (Heating Ventilation Air Conditioning) solutions.

Integral to the successful change in direction was the joining of Darryl Rochester to the Company in 1999. Darryl came with a long history in the New Zealand air conditioning industry and was ready to take on the challenge of establishing Mitsubishi Electric as the leading brand of energy efficient compressor driven products.

Heat Pumps

While the first Mitsubishi Electric Heat Pump System was sold in New Zealand in 1989, real momentum started in 2006. Using the tried and tested marketing philosophy of leading with unique products that take the higher ground, New Zealand's quietest high wall heat pump was launched.

Just like all those years ago, the philosophy of being the aspirational brand and to have Mitsubishi Electric product seen as the number one choice was front and centre for the marketing of Mitsubishi Electric Heat Pumps.

Quietly Superior

The new “quietly superior” advertising campaign that featured the cat and presenter based format was born. And to this day, Mitsubishi Electric Heat Pumps are now unequivocally synonymous with quietness.

Since then, regular unique product ranges were introduced setting new standards in comfort levels. HyperCore Technology was launched in 2009 that was specifically designed for New Zealand's low temperature conditions. Colour options with the Designer Series was introduced in 2011 giving Kiwis an alternative to just white!

And in 2014 driven by the philosophy of smart technology, BDT took matters in their own hands and developed the Wi-Fi Control app in-house for its range of Mitsubishi Electric Heat Pumps sold in New Zealand. The successful advertising campaign was centred around the premise of “Never return to a cold home again” and absolutely changed the way New Zealanders thought about heat pumps.

So What Does The Future Look Like?

Brought to life in 1998, the Environmental Vision 2021 initiative was established by Mitsubishi Electric with a long term global framework for realising a more sustainable planet. Since then, Mitsubishi Electric has reported annually on its environmental objectives and achievements in Japan and globally, to review the progress of the environmental plans of the group.

A key driver of the Environmental Vision 2021 Mandate is striving for the best and the most environmentally friendly use of energy in buildings by developing zero or low carbon technologies that consume the least amount of energy with minimal environmental impact.

Hot Water Heat Pumps

The Mitsubishi Electric Ecodan Hot Water Heat Pump Range launched in 2020 is a good example of a product that already meets this objective. Utilising their expertise and industry leading technology, Mitsubishi Electric has developed a super energy efficient heat pump that combines both hot water heating and room heating through one system.

Just like heat pumps revolutionised space heating in homes in the early 2000's, hot water heat pumps are poised to take the same trajectory. They are set to become the building blocks of tomorrow's environmentally friendly future and BDT is committed to retain Mitsubishi Electric's leading position in the New Zealand market wherever the journey takes us.

Creating New Zealand's Sustainable Future

On average, with buildings accounting for over 20%* of energy consumption and carbon emissions in New Zealand, improving the level of efficiency is of paramount importance.

As the exclusive distributor of Mitsubishi Electric products in New Zealand, BDT seeks to use its position to increase awareness, improve energy use and minimise carbon footprint in the built environment in the most energy-efficient, cost-effective and environmentally friendly way possible.

By constantly challenging everyone involved to combat the issues we all face, BDT and Mitsubishi Electric aim to help everyone address both energy use and carbon emissions, to work towards a more environmentally sustainable future overall.

BDT looks forward to regularly reporting back on how both BDT and Mitsubishi Electric are taking definitive action today, to create a greener world for tomorrow.

* 20% is based on the consumption oriented view from The Carbon Footprint of New Zealand's Built Environment Report from the 14th May 2018

Introducing the High Efficiency R32 e-Series Modular Chiller Range

Monday 15th of November 2021
Mitsubishi Electric has extended the e-Series Modular Chiller Range to now include M1500-1800 models that utilise R32 as a low Global Warming Potential (GWP) refrigerant. Comprised of cooling only and heat pump models, the Mitsubishi Electric R32 range of e-Series Modular Chillers allow up to six individual units to be connected together to provide system capacities up to 1,080kW.

A modern update on traditional systems, the R32 e-Series Chiller is Mitsubishi Electric’s most efficient chiller system yet.

Photo Credit: Airmaster

The Versatile Solution – Stock Available Now

Available as a cooling only or heat pump version, the e-Series is suitable for both comfort and process cooling applications. The modular design is great for new or replacement projects and ideal for projects with future expansion plans – allowing for a reduced initial capital cost.

Mitsubishi Electric e-Series Modular Chillers are currently operating in New Zealand hotels and commercial buildings, as well as experiencing growth in industries such as horticulture, dairy and industrial processing plants due to its superior efficiency and versatility.

*(BS) Coastal Protection and (-N) built-in header type options available.

Reduced Environmental Impact by Using R32 Refrigerant

With the New Zealand Government’s ratification of the International Kigali Amendment in 2020 sparking a steep phasedown of HFCs, building owners, facility managers and the construction industry have been looking for HVAC systems that deliver high operational efficiency whilst minimising the GWP of the refrigerants used within these systems.

The new R32 e-Series Modular Chillers offer significant environmental benefits over conventional R410A chillers. The use of R32 compatible compressors and flat tube heat exchangers allows for approximately 68% reduction in refrigeration volume and approximately 89% reduction in CO2 equivalent in the EACV-M1500YC(-N)(-BS).

Enhanced Efficiency Through R32-Compatible Inverter Compressor

A new compressor with a suction chamber injection mechanism and an inverter control system that automatically controls the operating frequency realise the use of R32 refrigerant and a wide water operating range.

e-Series Modular Chillers offer significantly improved seasonal efficiency when compared to R410A e-Series machines, which means that they cost less to operate over their lifetime.

Improved Annualised Operating Efficiency

*The values are calculated in accordance with EN14511.

High Performance Flat Tube Heat Exchanger

The use of high performance heat exchangers allows for a greater surface area whilst also keeping the units much narrower than conventional chillers. The inclusion of fins inside the flat tube heat exchanger divides the flow path of refrigerant and improves heat exchange effectiveness. This contributes to greater energy efficiency, reduction in refrigerant volume and a wider operating range.

New Water Side Heat Exchanger With Reduced Pressure Drop

Water Side Pressure Drop is reduced due to the new heat exchanger design. The heat exchanger assembly is complete with drain valve and air vents. These allow for easy air bleeding and draining of the heat exchanger.

Modular Format Ensures Design Flexibility and Reliable Operation

Up to six individual units can be connected together to provide a system capacity from 150-900kW for the M1500 model or 180-1080kW for the M1800 model. Using this modular approach reduces plant space requirements as well as simplifying logistics and installation.

A modular approach also lends itself to a staged installation for future HVAC demands, as modular chillers can be scaled accordingly and are easily replaced.

When installed using the inbuilt headers, individual modules can be isolated from the water circuit thanks to the inbuilt isolation valves. This allows for maintenance to be carried out while the other modules remain in operation.

Advanced Controls for Further Energy Savings

Typical chiller control systems allow units to run at a maximum capacity while other units are in standby during part load. The Mitsubishi Electric e-Series Chiller Range is designed to optimise chiller compressor frequency based on the number of connected units, maintaining the highest part load efficiency possible.

When the Overall System Load is 50%

Typical Chiller Control

e-Series Modular Chiller Range with Optimum Frequency Control

With up to six units operating in one bank, this function improves system efficiency when operating at low to medium loads. Furthermore the run time of each unit is equalised by the control system, this prevents uneven wear on the units and extends the lifespan of the system.

Market Leading Low Noise Levels

The e-Series Modular Chillers are by their nature much quieter than conventional chillers. By utilising highly efficient fan and compressor technologies within a uniquely shaped chassis, the e-Series Modular Chiller range offers low noise levels that are ideal for high density areas such as city centres where commercial and residential buildings mix.

e-Series Coastal Protection Models

While the standard e-Series models come with excellent corrosion resistance, the Coastal Protection e-Series models (-BS) go a step further by treating external panels and other key elements to a higher paint specification, providing further protection from aggressive salt environments often needed in New Zealand.

Easy Control

The water temperature in each module can be controlled using local remote controller PAR-W31MAA or by using centralised controller AE-200E. The AE-200E controller can centrally control up to 24 units or 24 systems connected via M-Net. The maximum number of connectable units can be further increased using EW-50E or AE-50E Expansion Controllers.

To learn how the Mitsubishi Electric Range of R32 e-Series Modular Chillers can work for your next project, please contact your Regional Sales Engineer.

NZS5149 – The HVAC Standard You Should Know About

Wednesday 3rd of November 2021
The NZS5149 standard that deals with refrigerant concentration in confined spaces has been around since 2016. It’s important as it affects every new or altered DX system installed in NZ – but it is largely overlooked.
If you are designing or installing DX HVAC systems you need to know about NZS5149, as by not meeting the standard the consequence could be maximum penalties of $500,000 or up to 2 years’ imprisonment.

Demystifying the Standard

NZS5149 is a safety and environmental standard that primarily deals with refrigerant leakage and more precisely the risk of asphyxiation or fire that can result from any leak. The standard itself is around 200 pages long set out in four sections covering:

  1. Definitions - describing terms, identifying refrigerants, classifying applications, explaining limits and describing mitigation. This is probably where you will spend most of your time trying to understand what is or isn't required for any project.
  2. Design and construction - requirements for piping, components and assembly. For example; pressure testing, tightening torques, inspections methods etc. Needed after you have decided what is required to meet the standard in section 1.
  3. Installation site - specific requirements for applications such as machinery rooms and requirements for mitigation methods such as alarms or ventilation. Hopefully you don't spend too much time in this section, as it means expense.
  4. Operation maintenance and repairs - covers ongoing use of HVAC and mitigation systems to ensure correct performance. Also covers reclaim, disposal handling and storage of various refrigerants.

NZS5149 definitely is a tricky standard, but anyone working with a DX air con or DX industrial plant should be using it regularly.

What Types Of Refrigerants Should I Look Out For?

Many of the old school refrigerants we have been using (like R410A) are class A1 refrigerants. These are non-flammable but somewhat toxic, so under NZS5149 they only have a toxicity limit. However many of the newer refrigerants (think R32, R1234ze, etc.) are A2 class, which means they are both mildly toxic and mildly flammable. These have the double whammy of both a toxicity and a flammability limit - with the stricter of the two being your overall limit. So any flammable refrigerant will likely be harder to make comply with the standard.

However as we're all aware many "old" gasses like R410A have high Global Warming Potential, so are in a heavy phase out period. Going forward you are more likely to have to deal with a "new" gas that has more stringent requirements.

Annexes B1, B2 and B3 in section one of NZS5149 will tell you all the details for the gas you have. These can be applied in to tables A1 and A2 in the same section - which is where you start to see what you are up for and how big the mountain is that you have to climb.

What Types Of Systems And Applications Should I Look Out For?

From a comfort cooling perspective hydronic systems generally have the chiller sited outside in the open air - so even though the volume of refrigerant in them could be large, 99% of the time they won't be a problem for safety under NZS5149.

Most 1:1 split systems usually won't be too much of an issue either, as often the refrigerant charge volumes they have are pretty small. So unless you have a high capacity split serving a small volume space these are unlikely to cause you any issues under NZS5149. The exception is floor console splits as these are mounted close to the ground which causes issues with the flammability calculation. Take care with these.

The real problem child is VRV / VRF systems as these often have a large gas charge with the refrigerant going right into occupied spaces - which can be small. Combine this with the heavy phase down of R410A gas that all large VRV / VRF systems use, and you can see why designers are moving away from these types of systems.

NZS5149 is also why you won't find any large VRV / VRF DX systems being offered in R32. There is simply no way they could comply with the more stringent flammability requirements of R32 - they have enough trouble complying with the lesser toxicity levels of R410A.

Now looking at applications, the standard sets out a sliding scale for requirements based on room occupancy. As you go up the scale the requirements to comply become more and more onerous.

Classifying Applications

Class A - General Occupancy

  • Public access spaces such as schools, restaurants, theatres or supermarkets. Additionally, any place with sleeping facilities such as hotels, houses or retirement facilities
  • Absolute maximum charge kg for a system applies
  • If exceeding the concentration limit generally 2x forms of mitigation are required

Class B - Supervised Occupancy

  • Access somewhat limited, with regular repeat occupants. Most offices and professional spaces will fall in to this category
  • No max charge kg for a system
  • However if concentration limit is exceeded (same limit as class A) sensors and alarms are required

Class C - Authorised Occupancy

  • Restricted access to only a selected few people. Often a locked space such as a store room or restricted area in manufacturing
  • No max charge kg for a system
  • However if concentration limit is exceeded (same limit as class A) sensors and alarms are required

Determine if There is Likely to be a Problem or Not

In comfort cooling the potentially problematic DX systems are currently all either R410A or R32. So for a standard room the rough maximum concentration levels are:

R410A = approx. 1kg per 1m2 of any room served*

R32 = approx. 1kg per 6m2 of any room served*

*note assumes 2.4m floor to ceiling height. Ceiling void cannot be included in room volume.

My Advice? Avoid Mitigation

In my experience mitigation for excessive refrigerant concentration will be expensive, difficult or both. So the first approach you should look at is changing the design to avoid exceeding the maximum concentration levels by:

  • Breaking up larger DX systems in to several smaller ones (although take care as this can add significant costs).
  • Changing to a different type of system. Splits, Hybrid VRF or hydronic systems could all get you out of jail, but of course may require re-work of the design. If doing this be mindful of solving one problem but creating another. For example; splits generally have shorter pipe run maximums which can cause problems for proposed or existing outdoor unit locations.
  • Not directly treating some spaces with A/C. A no-brainer but if the spaces don't have A/C in them then they can't be a problem.
  • Changing the size of the problem spaces. This sounds strange, but if you can increase the size of a space you could solve the problem. Removing a physical barrier like a door, or providing a decent door undercut so that the problem space sums with an adjacent larger one could do the job.

If you can't do any of the above then you are up for mitigation, this can be found in section 3 of NZS5149. Some of the possible methods are:

  • Natural Ventilation
    Both high and low level openings in each room that exceeds the limit are required.
  • Mechanical Ventilation
    Both supply and extract vents in each room that exceeds the limit are required. The vents must be positioned "as low as is practicable", so read this as vents in the ceiling are not acceptable.
  • Safety Shut Off Valves
    Operated by sensor and positioned close to the space in question to prevent the maximum concentration level being exceeded in the event of a leak.
  • Sensors and Alarm System
    Must provide an audible and visual warning and if the application is class A also report to a supervised remote location. Any sensor must be re-calibrated at least annually (some are more frequently). Note: all sensors have a limited service life of between 2 -5 years and so must be regularly replaced.

The Hidden Costs of Mitigation - An Example

A floor in a commercial building that has been separated in to 40x small offices with a VRV system proposed to condition them. Clearly an office is a class B application, so there is no limit on the system charge and no problem right? No, wrong!

In class B, any space that exceeds the maximum concentration limit still needs to have sensors and an alarm system. So if all 40 offices exceed the maximum limit we are up for approximate costs as follows:

Combined 10 Year Life Cost for Alarms = $302,000

As you can see the hidden cost can often be a lot more than changing to a different system type or another design related change.

Combined 10 Year Life Cost for Alarms = $302,000

In Summary

  1. Don't Ignore NZS5149 - the penalties are huge!
  2. Non-flammable gasses comply more easily (but are getting rarer)
  3. Know your space. Is it occupied? What class is it?
  4. Large charge (VRV / VRF) are by far the most problematic
  5. Mitigation is horrendously expensive - avoid it any way you can
Alternate Text

BDT is a HVAC product supplier not a refrigeration supplier, so all comments are given from this perspective. Everything discussed is BDT's opinion or interpretation. Other opinions may differ. It is recommended you check any designs you do against the NZS5149 standard for yourself or engage a professional to verify your interpretation. Click here to read the full standard.

R32 Hybrid VRF – The Future-proof Solution

Tuesday 26th of October 2021
Since the New Zealand Government ratified the International Kigali Amendment in 2020, the HVAC industry has had to rethink our use of traditional R410A VRF systems which we have all been comfortable designing and installing in past years.

With these legislative, comfort, safety and environmental pressures on the industry, coupled with the expectations of building owners seeking design and technology which will stand the test of time, Hybrid VRF using R32 refrigerant offers a future-proof solution to cater for the changing needs and expectations of our industry to succeed R410A VRF or VRV systems in the New Zealand market.

Why Choose R32 Hybrid VRF?

All the benefits of VRF with significantly lower GWP

The 2-Pipe Hybrid VRF System offers the same comfort levels normally associated with 4-pipe fan coil systems. In addition, consultants and end users will appreciate the same design flexibility, operational efficiency and advanced control that Mitsubishi Electric traditional VRF is renowned for.

The R32 Hybrid VRF Range brings all of the benefits of VRF air conditioning in an R32 format to deliver a system with a significantly lower Global Warming Potential (GWP) than existing solutions – the shift from R410A to R32 refrigerant realises a 66% reduction in Global Warming Potential.

Combat the rising costs of R410A refrigerant with R32

With the phase-down of HFC gasses particularly effecting R410A, the R32 Hybrid VRF Range provides the obvious answer for those customers looking for a future-proof heating and cooling solution that delivers advanced efficiency with improved corporate social responsibility and minimal environmental impact.

Water instead of refrigerant is at the heart of the indoor units – making it safer for occupants and less expensive to maintain

By using water as the heat medium for the majority of the air conditioning system, Hybrid VRF reduces the overall amount of refrigerant in the system.

Furthermore, with only water between the branch box to the indoor units, Hybrid VRF minimises the need for expensive leak detection leading to significant reductions in on-going maintenance costs in the controlled space that would be needed to comply with AS/NZS 5149 (1-4) 2016.

R32 refrigerant offers low environmental impact without compromising on efficiencies

There is now an expectation that the materials and chemicals used within a building have the least possible impact on the environment and the community.

An R32 Hybrid VRF System can require up to 52% less refrigerant for the same capacity when compared to an equivalent R410A traditional VRF system. R32 Hybrid VRF utilises a single composition refrigerant which has a GWP of only 675 and as a total system it can have an 84% reduction in the carbon dioxide equivalent.

The Synthetic Greenhouse Gas Levy and the Environmental impact with R32 refrigerant is significantly less, meaning that your building is in the best position for being ahead of the curve of change. And if there should be an unexpected leak in the system your costs and impact on the environment involved with re-charging the system will be significantly lower than if you were to install an R410A system. R32 Hybrid VRF is the lowest GWP VRF system in the New Zealand market today.

R32 refrigerant does not just offer a solution to our environmental pressures and phase down targets. From a thermodynamic perspective, R32 offers similar cooling efficiencies as well as improved heating efficiencies when compared to R410A.

Choosing R32 Hybrid VRF is the Smart Investment

Hybrid VRF futureproofs your investment ensuring your air-conditioning plant has the expected longevity, and gives you the assurance that the chemical refrigerant will not be priced out of the market by the means of the government imposed Emissions Trading Scheme on Synthetic Greenhouse Gasses and the International Kigali Amendment agreement.

Hybrid VRF, with its ever expanding product range and world leading technology, is a revolutionary product that is truly disrupting the HVAC industry.

Extended R32 Hybrid VRF Indoor Range

Mitsubishi Electric has made significant strides in research and development of Hybrid VRF technology. In 2014, when Hybrid VRF was first introduced to the New Zealand Market by Black Diamond Technologies there were only 16 indoor units to choose from.

Fast forward to 2021 and there are now 53 indoor models on offer, including the introduction of larger capacity PKFY Wall Mounted Units, a new PEFY Ceiling Concealed High Static Pressure Range and new sizes within both the PLFY 4-Way Airflow and Compact Cassette Ranges.

For more information contact your Regional Applied Products Sales Engineer or click here.

Introducing the New Plasma Quad Connect Advanced Air Filtration Accessory

Monday 18th of October 2021
We spend up to 80% of our time inside. As such, good indoor air quality is paramount to our well-being. So how can home owners have the peace of mind they are breathing cleaner, healthier air all year round?

Introducing the Plasma Quad Connect – a new high wall accessory, featuring high-performance two stage plasma technology. The advanced filtration system works to clean away smells, dust, mould and other common household allergens, making it an ideal addition for asthma and allergy sufferers.

How Polluted is the Air Inside Your Home?

You may be surprised how contaminated indoor air can actually be. You might not be able to see it – but it is there! Every time you open your doors or windows, external pollutants such as pollen, dust and other allergens enter the home. But did you know oil and fat particles from cooking all release microscopic particles into the air too?

Dust and pet dander (dead skin flakes), mould build-up and mildew spores triggered by dampness can further increase concentrations of pollutants. There is substantial evidence to support the claim that breathing Particulate Matter (PM) is harmful to human health, particularly smaller fractions such as PM10 and PM5.

Cleaner, Healthier Air with 2 Stage Plasma Filter

The Plasma Quad Connect is designed to work like an electrical curtain, using an advanced two-stage process which first makes plasma that breaks down air pollutants and then creates an electrical discharge that neutralises even microscopic particles in the air.

In fact, it can even capture particles as small as PM2.5, that's 20 times smaller than the width of a human hair! Unseen to the human eye, these microscopic particles can easily penetrate deep into our lungs and even our bloodstream.

The result? A more healthy and cleaner living environment that can be enjoyed year-round.

Highly Effective Filtration

Independent test results confirm that the Plasma Quad Connect Filtration System achieves extremely high reduction results in the removal of allergen, mould, bacteria and virus particles in the room. This provides the ultimate peace of mind and ensures a healthier and cleaner living environment.

Connect to New Installs or as a Retrofit

Designed to be installed directly above high wall units, the Plasma Quad Connect is compatible with the following High Wall Systems.

  • EcoCore GL Series
  • EcoCore AP Series, Classic AP Series and AP Mini
  • Designer EF Series
  • Large Capacity AS90
  • Large Capacity PKA-M
  • GE Series

This slimline, advanced air filtration accessory provides a value-added sales opportunity when paired with compatible high-wall units.

Plasma Quad Filtration is built-in as a standard feature in the Black Diamond LN Series.

Introducing WizardX Heat Recovery Fresh Air AHU

Monday 18th of October 2021
Meet WizardX, the new Mitsubishi Electric Climaveneta Range of Fresh Air, Air Handler Units (AHUs). The most energy efficient Air Handler Unit on the market that draws stale air out and provides an equal amount of fresh air in, with the added benefit of heat recovery.

Available in seven compact sizes, the addition of the WizardX allows you to implement a complete Mitsubishi Electric HVAC solution to your commercial project without needing third party AHUs.

Fresh air is essential to occupant health and wellbeing, making the WizardX the ideal solution for commercial applications such as apartments, office buildings, hotels, theatres and schools.

The WizardX Features Enthalpy Rotary Heat Recovery

The Enthalpic Heat Recovery of the WizardX represents the most efficient recovery system available on the market with yields from 60% to 90% compared to traditional solutions.

A key component is the Enthalpy Wheel, designed with alternately flat and corrugated aluminium sheets with a hygroscopic treatment to achieve a high exchange surface in relation to the volume.

This solution makes it possible to recover both latent and sensible heat with a noticeable increase in the overall efficiency of the unit.

EC Plug Fans Guarantee Improved Energy Performance

In addition to the use of the Enthalpy Wheel, the WizardX features supply and exhaust centrifugal plug fans with integrated EC motors for a more compact construction and increased ventilation efficiency.

Thanks to the composite material structure and the electronic commutation motor technology, WizardX EC plug fans guarantee improved energy performance and very low energy consumption. As an option it is possible to install HP high pressure fans.

WizardX Can Be Combined With Mr Slim Heat Pumps for a Complete Mitsubishi Electric Solution

WizardX has been designed to work in perfect synergy with Mr Slim outdoor units for supplementary heating or cooling and without the need for any special unit configurations.

Managed by the advanced logic of the PAC-IF 013 card installed inside the electrical panel, WizardX is able to communicate simultaneously with multiple Mr Slim units in both the Mr Slim Standard and Power Inverter versions.

Equipped with an inverter compressor, the direct expansion technology within the Mr Slim outdoor unit further contributes to minimising energy consumption.

High Precision Control

Advanced control logic and technical components with a high regulation capacity, such as the EC plug fans, the Enthalpy Wheel and the direct expansion coil, allows the thermal and air renewal requirements to be achieved perfectly. The continuous and precise modulation ensures maximum comfort in the environment and minimises energy consumption.

Furthermore, BMS interfacing can be achieved using either BACnet or ModBus.

A Ready-to-Use Unit for a Quick and Simple Installation

The WizardX is delivered as a ready-to-use unit. All the control, regulation, and safety components are already installed on-board the unit and tested before despatch from the factory. This means the site installation is quick and simple with no need for third party controls.

WizardX – Summary of Key Features

  • Available in seven different compact sizes, ranging from 800L/s to 5500L/s
  • Highly efficient and compact Enthalpic Heat Recovery Rotary Wheel
  • Full plug and play controls
  • Super-efficient EC plug fans on both supply and exhaust sides
  • Supplemental heating/cooling with Mitsubishi Electric Mr Slim outdoor units

Three Versions to Choose From

Select from three WizardX versions, Standard (C-OU), Enhanced (E-OU) or Boosted (B-OU), to best suit the purpose of the application. Each version varies in the number and size of Mr Slim outdoor units that can be connected, the thermoregulation system (Auto Mode or Intelligent Multiple Outdoor Unit Control), level of control and whether the unit has capacity to provide dehumidification.

Range of Optional Accessories

  • CO2 probe for air quality control
  • BMS connection with BACnet or ModBus
  • Steam humidifier section
  • Dampers for fresh air intake, supply, return and exhaust air flows
  • Recirculation damper
  • Aluminium roof for outdoor installations
  • Pre-heating and re-heating electric or hot water coils
  • HP high pressure fans available for both the supply and exhaust fans

For more information contact your Regional Applied Products Sales Engineer or click here.

Vertical Lossnay Heat Recovery Ventilation

Monday 11th of October 2021
Mitsubishi Electric has launched the next generation of Whole Home Fresh Air Heat Recovery Ventilation.

Not requiring installation in the attic, the new Vertical Lossnay Range resolves the issue of no roof space, offering an alternative installation solution. Now more homes can have a Lossnay Fresh Air Heat Recovery System, regardless of their design and installation challenges.

Not requiring installation in the attic, the new Vertical Lossnay Range resolves the issue of no roof space, offering an alternative installation solution. Now more homes can have a Lossnay Fresh Air Heat Recovery System, regardless of their design and installation challenges.

Small Enough to Fit in a Cupboard

The Vertical Lossnay Range is designed specifically for the New Zealand housing market and makes energy efficient, super-quiet ventilation accessible to even more homes.

With a small and vertical upright design, the Lossnay Ventilation System is not limited to an in-roof installation and its compact footprint allows it to be placed in the garage or a cupboard in the kitchen. Now whole home ventilation can be installed and integrated in the overall building design without limitations.

Fresh Filtered Air with Heat Recovery Maximising Efficiencies

Ventilating our indoor spaces is more important than ever, but we also need to be as energy efficient as possible. The new Vertical Lossnay will deliver fresh filtered air whilst recovering energy to minimise waste.

In fact, Lossnay’s unique heat recovery technology recovers up to 85% of the heat energy from the outgoing stale air which is then used to pre-warm (or pre-cool) incoming fresh air. This means any heating or cooling appliance does not have to work as hard to reach the desired room temperature – providing savings on your energy bill and maintaining a healthy home environment.

Advanced Filtration for Better Health and Wellbeing

The quality of indoor air is an important factor for health and wellbeing and the new Vertical Lossnay Range ensures there is a constant flow of fresh air into our homes, and that potentially harmful pollutants and chemicals are being removed at the same time.

The new residential range comes with optional NOx (nitrogen oxide) and Particulate Matter Filtration, with a unique third filter pocket which can be used for additional filtration of NOx emissions.

This means that homes in even the most polluted environments can be supplied with clean, healthy air.

Automatic Summer Bypass

A built-in Automatic Summer Bypass also allows the units to bring in fresh air from outside without transferring heat, in order to reduce the risk of overheating.

This provides the ideal solution for cooling down a dwelling that may have overheated during the day once the outside temperature has dropped in the evening.

Using onboard temperature sensors, the unit can automatically enter Bypass Mode when it detects the space is hotter than desired and the outside air is cool enough.

Easy to Use Control

A built-in LCD controller allows for easy control and commissioning of the unit, and offers a clear display showing normal, boost, and purge modes. Up to four speed settings can be commissioned digitally to ensure constant and accurate settings.

Vertical Lossnay Key Features & Benefits

Vertical Lossnay Units, VL250, 350 and 500
  • Avoids in-roof installation
  • Slimline to fit in a cupboard, laundry or garage
  • Advanced filtration for better health and wellbeing
  • Energy efficient heat recovery operation
  • Automatic Summer Bypass
  • Easy to use control

Mitsubishi Electric Climaveneta i-BX-N Hot Water Heat Pump Systems

Tuesday 5th of October 2021
Mitsubishi Electric Climaveneta has used the latest advancements in hot water heat pump technology to offer the
i-BX-N Packaged Hydronic Hot Water Heat Pump.

This high quality, high efficiency, low noise system fits seamlessly into both domestic and light commercial environments offering both hot water and space heating or cooling.

The i-BX-N Range is low maintenance, easy to install and a real space saver, making it the ideal solution to replace traditional gas and direct electric hot water systems.

Did you know that on average, hot water and home heating needs combined account for over 67%* of the overall energy bill in New Zealand homes?

It therefore makes sense to invest in the most energy efficient way to heat both your home as well as your potable water.

A Mitsubishi Electric Climaveneta i-BX-N Packaged Hydronic Hot Water Heat Pump System enables significant savings to be made compared to gas and direct electric systems. It’s the next generation in hot water heating that utilises trusted Mitsubishi Electric Heat Pump Technology.

*Based on data sourced from EECA New Zealand.

Packaged Hot Water Heat Pump System

The Mitsubishi Electric Climaveneta i-BX-N System is a packaged external unit with an electronic expansion valve and incorporates a complete integrated hydronic module as standard.

This super-efficient inverter heat pump system is suitable for heating, cooling and indirect domestic hot water production; furthermore it is designed to effectively operate in cold climate conditions for year-round comfort.

An i-BX-N unit is supplied as standard with an onboard hydronic kit comprising:

  • EC Pump
  • Expansion tank
  • 600KPa pressure relief valve
  • Air vent
  • Anti-freeze electric heater
  • Flow switch
  • Water filter (supplied loose)

Add Radiators, Underfloor, or Fan Coil Units

A Mitsubishi Electric Climaveneta i-BX-N Hot Water Heat Pump System can do more than just efficiently heat hot water.

Flexible by design, the i-BX-N Range pairs well with super energy efficient, European designed room heating terminals. A Mitsubishi Electric Climaveneta Hot Water Heat Pump System can also be integrated with a radiator or underfloor heating system.

Ideal for Retrofit Applications due to its Space Saving Design

Now more than ever, homeowners are looking for potable hot water and space heating solutions that are significantly more energy efficient and have a lower impact on the environment. However, when it comes to replacing a hot water system, space constraints can often make finding a solution difficult.

The i-BX-N Hot Water Heat Pump System is designed with household space limitations in mind, meaning that the all-in-one unit can operate externally to the house and save on precious floor space.

Easy Installation

All hydronic components are contained within the i-BX-N unit, meaning that the only external connection made is the hydronic flow and return from the heating loop.

Reduced Energy Consumption

The i-BX-N adapts to the most diverse load conditions due to its accurate temperature control combined with the use of inverter technology, ensuring a high level of energy efficiency both at full and part loads.

The dynamic control of the water supply temperature according to the outdoor air temperature greatly increases the comfort and energy efficiency of the system.

Suitable for Residential or Light Commercial Applications

Exceptionally quiet, Night Mode ensures optimal comfort. Noise levels are also decreased by modulating the fan speed and frequency of the compressor.

In addition, the compressor is installed on rubber anti-vibration mounts and is soundproofed by special sound-absorbing material.

i-BX-N Summary of Key Features

  • Packaged hot water heat pump system with a compact footprint
  • Unit supplied as standard with onboard hydronic kit
  • Easy hydronic installation
  • Exceptionally quiet operation – equipped “Night Mode”
  • Full home system – capable of producing hot water for domestic hot water and 2 zones of space heating/cooling
  • Cascade option available – link up to 4 units of same capacity together
  • Both heating and cooling modes for all year round comfort
  • Nadisystem onboard controller – allows for customisable control
Model Capacity
i-BX-N 004M 4.6kW
i-BX-N 006M 6.3kW
i-BX-N 008M 8.5kW
i-BX-N 010M 11kW
i-BX-N 010T 11kW
i-BX-N 013M 14.7kW
i-BX-N 013T 14.3kW
i-BX-N 015T 17.2kW
i-BX-N 020T 21.7kW
i-BX-N 025T 26.1kW
i-BX-N 030T 32.2kW
i-BX-N 035T 38.0kW

i-BX-N***M (single phase) – i-BX-N***T (3-phase)

QAHV – The Future of Hot Water Heating

Tuesday 3rd of August 2021
When selecting hot water systems for commercial and industrial applications, having a reliable system that will meet today’s needs now and those of the future is important. Mitsubishi Electric have developed QAHV; the latest innovation in a comprehensive line-up of Hot Water Heat Pump products. Specifically designed to produce high temperature potable hot water up to 90°C, the QAHV is suitable for commercial and industrial projects.

Using natural CO2 as the refrigerant, the QAHV provides one of the lowest environmental impacts when generating potable hot water. It is engineered to perform well in harsh conditions and climates, and of course being an inverter heat pump it does so extremely efficiently. By adopting Mitsubishi Electric's unique technology, the QAHV ensures highly reliable performance as well as high heating capacity even at low outdoor temperatures.

Why Invest in Environmentally-Friendly Hot Water Solutions?

The industry is shifting. The Government has banned new coal boilers from the end of 2021 and businesses will need to phase out existing ones by 2037. Simultaneously the Government is providing $70M to support and incentivise businesses to switch away from boilers to cleaner, greener options for hot water production. While many may turn to natural gas, the Climate Change Commission is proposing no new gas connections to buildings from 2025 and a steep phase out of existing gas boilers from 2035 onwards.

Currently gas is used to produce hot water in the majority of commercial buildings in New Zealand, and while gas is an attractive option due to its compact footprint, it is a very high carbon emitter and isn’t particularly efficient, even if the building is using a modern condenser boiler – not to mention the potential risk to occupants if a leak occurs.

With the future of traditional forms of hot water heating uncertain, it is clear that those within the industry, engineers, designers, installers or owners, must move to new solutions for water heating in commercial buildings – and the move needs to start now.

CO2 Refrigerant is the Key to Future-Proofing Hot Water

The growing emphasis on global warming mitigation has stimulated interest in a new generation of low-GWP refrigerants, many of the new refrigerants being created feature GWP’s around 500 to 600 or even less. But nothing can compete with CO2 and its GWP of 1 – it provides the reference point for environmental impact that all other refrigerants are measured against.

The QAHV series utilises CO2 as it is an environmentally-friendly, safe and natural refrigerant with zero Ozone Depletion Potential (ODP) and a Global Warming Potential (GWP) of 1.

There is no greener alternative currently available in New Zealand.

Patented Mitsubishi Electric Technology increases Energy Savings

The Mitsubishi Electric QAHV System utilises a twisted and spiral gas cooler. This patented technology enhances energy efficiency while delivering high temperature hot water.

Using twisted pipes as water pipes and running the refrigerant pipes along their grooves helps to increase the heat-conductive area. The continuous spiral groove design accelerates the turbulence effect of water and helps to reduce pressure loss within the heat exchanger, enhancing efficiency.

Equipped with the latest inverter scroll compressor, QAHV offers unparalleled efficiency when compared to fixed speed systems - boasting an impressive COP of 3.88*.

*Under normal heating conditions at outdoor temp: 16°CDB / 12°CWB, inlet water temp 17°C, outlet water temp 65°C.

Superior Heating Performance even at Low Temperatures

As ambient temperatures drop, so too does the capacity of heat pumps. However, the QAHV is able to provide its full heating capacity of 40kW even at ambient temperatures as low as -3°C. Furthermore, the unit operates to supply 90°C hot water in ambient temperatures as low as -25°C. This superior level of performance is achieved using Mitsubishi Electric’s industry-first Flash Injection Circuit which provides the optimum amount of refrigerant to the system via a compressor through a specially designed injection port. This ensures a highly stable operation that at the same time, meets the guidelines for Legionella.

Better Security of Hot Water Supply and More Lettable Space

As a single pass high temperature lift machine, QAHV works best with a high water temperature difference and delivers 10l/min or more of full temperature usable hot water in real time. This directly reduces the amount of storage required to meet the peak demands, and gives quicker recovery. Ideal for commercial uses where hot water demand is high, such as gyms, hotels, motels, aged care facilities and hospitals.

Optional Mitsubishi Electric “BS” Salt Corrosion Protection System Available

To help extend the life of the QAHV outdoor unit when located within highly corrosive environments, the optional Mitsubishi Electric “BS” Salt Corrosion Protection System can be applied during the outdoor units manufacturing process to ensure all components are 100% protected before the outdoor unit is assembled.

QAHV-N560YA-HPB Key Features:

  • Rated Heating Capacity of 40kW
  • High efficiency (Achieved COP 3.88*)
  • Supplies high temperature hot water of up to 90°C
  • Operable even at low outdoor temperature of -25°C
  • Utilises natural CO2 refrigerant which has zero Ozone Depletion Potential (ODP) and has a Global Warming Potential (GWP) of 1
  • Uses a unique twisted and spiral gas cooler to enhance energy efficiency
  • Compact dimensions, minimising plant space

* Under normal heating conditions at outdoor temp:16°CDB/12°CWB, inlet water temp 17°C, outlet water temp 65°C

While its environmental-friendliness is QAHV’s leading strength and the key to future-proofing from climate change and subsequent government legislation and regulation, its superior performance is what really makes QAHV a smart investment. For more information about our range of QAHV Hot Water Heat Pumps, click here.

New Lossnay Sensible Heat Recovery Ventilation

Monday 2nd of August 2021
Mitsubishi Electric has extended the Lossnay LGH Energy Recovery Ventilation Range to now include Sensible Heat Recovery Only models. The new range features a new non-permeable Lossnay Core that is specifically designed to recover sensible heat and remove moisture at the same time.

The newest addition to the Lossnay Range introduces fresh filtered air and thanks to the new core can now draw stale air out from areas with high humidity such as bathrooms, kitchens and laundries as well as commercial applications such as gyms, healthcare centres, schools and offices.

Furthermore, the range features easier installation, quiet operation, high energy efficiency and optimised control.

Highly Efficient Sensible Heat Recovery

This system is designed to transfer sensible heat only (the heat you can feel as temperature changes) and maximises heat recovery from the stale outgoing air. In addition, due to the non-permeable core it also removes moisture in high humidity areas at the same time.

The available energy is transferred and re-used to pre-warm or pre-cool the incoming fresh air, maximising energy efficiencies. In doing so, moisture build-up is minimised while healthy humidity levels are maintained and managed for occupants throughout the entire building.

It is important to note that it does not recover latent heat, which is the additional heat contained in the airborne moisture in the air. The Sensible Lossnay System uses a non-permeable core so moisture cannot be absorbed by the core. For this reason, the system has a drain connection that is piped to waste.

Whole Building Ventilation Even From Humid Areas

Now you can bring fresh filtered air in and draw stale air out, even from high moisture areas - with the added benefit of Sensible Heat Recovery maximising energy efficiencies. The non-permeable Lossnay Core enables the system to ventilate all areas, including those with high humidity such as bathrooms, kitchens, gyms and health care centres.

Maintenance is made easier with the fully removable and washable core. The Sensible Lossnay design also includes a full drain pan which avoids mould and odour inside the unit by ensuring moisture is drained throughout all seasons.

Easy, Flexible and Lightweight Installation

The unit features one drain pipe terminal allowing for quicker and lower cost installation. Trap piping is not required as the new Sensible Lossnay unit features backflow prevention and an internal inclined drain pan, which not only helps with installation, but also reduces the risk of mould and odour.

Flexible ductwork and a swivel drain pipe mean installation can be incorporated into building designs with the ability to avoid obstructions and be set out of the way against walls.

Furthermore, the chassis of the Sensible Lossnay Range is lightweight, making installation easy and safe.

Low Noise Operation

With models starting from 18dBA*, the Sensible Lossnay System includes a unique, specifically designed fan that optimises the balance between airflow and static pressure to minimise noise levels.

The new range also has an optional Silencer Duct that can reduce noise further when a quiet solution is paramount.

*on the lowest fan setting SPL @ 1.5m

Optimised Control with Optional CO2 Sensor

Optimise airflow for each application with the new remote controller, PZ-62DR-E. Now featuring optional CO2 level indication, improved variable airflow control and a new fan speed timer.

Sensible Lossnay Range LGH-50/80/100RVS-E Key Features:

  • Available in three sizes 500m3/h, 800m3/h and 1000m3/h
  • Non-permeable Plastic Counter-flow Lossnay Core – suitable for extracting from moisture laden areas
  • Sensible heat exchange only
  • Lightweight chassis
  • Multidirectional single drain connection
  • Energy efficient fans with low SFP (Specific Fan power)
  • Supply and exhaust fans speed set individually
  • Quiet operation
  • Heat exchange bypass function
  • Variable airflow control
  • Easy maintenance with washable core
  • BMS connectable
  • Selectable in new MELVEST Selection Software

Optional Accessories

  • G3, M6 and F8 filtration
  • CO2 Sensor
  • Duct silencer
  • Signal output terminal

For more information about the new Sensible Lossnay Heat Recovery Ventilation Range, contact your Applied Products Sales Engineer.

Ecodan Hot Water Monobloc Range is Now Available with R32 Refrigerant

Thursday 25th of March 2021
Mitsubishi Electric has launched its latest addition to the already market-leading Ecodan Hot Water Heat Pump Range.

The ultra-quiet Ecodan Monobloc Outdoor Series has been expanded to include models that now utilise R32 refrigerant. As a more environmentally-friendly product with high operational efficiency, R32 has a low global warming potential (GWP) of 675 – less than one-third of the traditional R410A refrigerant.

Going forward, it will play a huge role in helping to reduce the environmental impact of compressor-driven appliances. What’s more, it’s also easier to reuse and recycle as it’s a single component refrigerant.

As a result, we’ll likely see R32 refrigerant swiftly become the standard for hot water heat pump systems going forward.

The monobloc range will be available from July 2021.

New R32 Ecodan Monobloc Range

R32 model and capacity lineup

  • PUZ-WM50VHA-BS    5.0kW
  • PUZ-WM60VAA-BS    6.0kW
  • PUZ-WM85VAA-BS    8.5kW
  • PUZ-WM112VAA-BS    11.2kW
  • PUZ-HWM140VHA-BS    14.0kW Zubadan single phase power
  • PUZ-HWM140YHA-BS    14.0kW Zubadan three phase power

Quiet outdoor operation

With higher density housing becoming more common in New Zealand, the quiet outdoor operation is essential if you want to keep your neighbours happy. Designed specifically for residential applications, the new Ecodan outdoor units are extremely quiet - as low as 45dBA!*

Specific design features enable the quiet outdoor operation to be maintained at all times. This ultra-quiet operation means homeowners can now choose the most convenient location for their Ecodan without disturbing their neighbours.

Mitsubishi Electric has always been at the forefront of improving technology, including sound levels, to meet the ever-changing requirements of consumers. So it should come as no surprise that with the urban landscape rapidly changing to more high-density housing, Mitsubishi Electric has specifically tackled outdoor sound levels across the R32 Ecodan Range.

*PUZ-WM60/85VHA-BS

New next-generation Ecodan Hydrobox and Packaged Cylinders

  • Pre-plumbed and wired for faster installation
  • Energy monitoring as standard
  • Quiet outdoor operation
  • Scale trap technology
  • Simple graphical control
  • Optional 2-Zone Space Heating Control
  • Compatible with home automation

As part of the Ecodan outdoor range expansion, a new D-Generation of hydrobox and packaged cylinders has been released to specifically match the R32 outdoor units.

New packaged cylinders compatible with R32 range

Ecodan provides continuous hot water via a dedicated “all-in-one” Ecodan Hot Water Storage System. These D-Generation storage systems are specifically designed to integrate with the R32 Ecodan outdoor range.

In addition to a 200L capacity, a smaller 170L*3 and a larger 300L packaged cylinder have been added as part of the D-Generation lineup.

The cylinders are completely pre-plumbed and wired for ease of installation.

New hydrobox models compatible with R32 range

A highly adaptable solution for retrofit and new builds. For systems where a 3rd party cylinder with a heat exchanger coil is required, this can be easily catered for by the addition of a 3-way diverter valve to the system and connecting it to the FTC5 Controller.

Key improvements to the D-Generation

While identical in look and footprint compared to the previous generation, the D-Generation now features:

  • A new generation of pumps
  • Additional tank temperature sensor for quicker heat up times
  • A new improved 3-way valve for the packaged cylinder
  • A new air purge point for the hydrobox

Installation improvements have been made to the pipe position and longer adjuster bolts are at the base of the cylinder.

Hot water heat pumps are better for the environment

Did you know traditional electric hot water heaters produce up to three times the amount of greenhouse gas compared to a low emission alternative such as a hot water heat pump?

Instant gas hot water systems contribute to even greater greenhouse gas emissions. By producing a staggering seven times more emissions compared to hot water heat pump technology.*1, this makes water heating one of the largest single sources of greenhouse gas emissions from the average Kiwi home. This is evident to such an extent that EECA (Energy Efficiency & Conservation Authority) has identified heat pumps as playing a key role in significantly reducing costs and greenhouse emissions from energy use.

An estimated 67% of New Zealand homes use a traditional electric hot water system*2. Substituting existing, less efficient technologies with their more efficient counterparts, such as a hot water heat pump, can contribute to a significant reduction in overall greenhouse emissions.

If you are looking for a super energy-efficient water heating solution that is also kind to the environment, Mitsubishi Electric Ecodan Hot Water Heat Pumps are the natural solution.

*1 Based on electrical and gas emission factor for New Zealand.
*2 Based on E3 Policy Framework data for New Zealand.
*3 170L models are indent-ordered only from the supplier.

For more information about the new R32 Ecodan Hot Water Heat Pump Range, please contact your local sales office.

New large capacity AS90 High Wall Heat Pump – ideal for larger open-plan workspaces

Wednesday 24th of March 2021
We are pleased to announce the launch of the new R32 AS90 Large Capacity High Wall Heat Pump. Combining powerful performance in an elegant and compact case, this latest addition to our light commercial high wall lineup is perfect for applications such as schools, halls, and open-plan shared spaces.

Boasting a capacity of 9.0kW in cooling (10.3kW in heating), this model features next-generation R32 high-efficiency compressor technology developed and engineered to use less power than ever before. The Wide and Long Airflow Mode, in addition to Powerful Mode, ensures far-reaching coverage making the AS90 ideal for larger, open working spaces.

AS90 High Wall Key Features

Next Generation R32 Inverter Technology

Superior energy efficiency is achieved by incorporating a high-density heat exchanger, an advanced high-efficiency fan motor and a next-generation compressor using the latest super-efficient and more environmentally-friendly R32 refrigerant.

Wide and Long Airflow

This mode enables airflow direction to be adjusted from left to right, great for open plan environments – ensuring every corner of the room is just as you like it.

The Long Airflow Mode extends airflow by up to 12m to reach even the furthest point of an open plan or larger living space. These modes are simply activated at the touch of a button on your remote controller.

Two-Stage Advanced Filtration for Cleaner, Healthier Air

The washable air cleaning filter traps harmful particles such as dust, pollen and other airborne contaminants that can cause allergic reactions. Furthermore, the filter itself is infused with an artificial Enzyme Catalyst that helps break down harmful microbes such as bacteria, mould and dust mites.

Powerful Mode

The one-touch Powerful Mode automatically adjusts the fan speed and temperature, guaranteeing full power operation within 15 minutes for faster heating or cooling. After 15 minutes the unit automatically returns to its previous operation settings.

Econo-Cool Function

This intelligent temperature control feature adjusts the airflow distributed in the room depending on the air outlet temperature. Temperature settings can be raised by 2°C without any loss of in-room comfort. That's equal to a gain of up to 20% in energy efficiency.

i-Save Mode

This mode saves your temperature and fan speed combinations, including a set-back temperature of 10°C in Heating Mode, when the room is unoccupied. When the room is later reoccupied, the system will then use less energy to reach its desired temperature.

Night Mode

Night Mode will automatically dim the operation indicator light, disabling any beeping from the indoor unit. Furthermore, the outdoor operating noise level is reduced by 3dBA ensuring quiet nights for both you and your neighbours.

Blue Fin Coating

Built to withstand the elements, the heat exchanger of the outdoor unit has been treated with a Blue Fin Anti-corrosion Treatment, slowing the corrosion process caused by salt and sulphur in the air especially in coastal and high sulphur areas.

7-Day Programmable Controller

You can easily and quickly program up to four time and temperature settings for each day of the week. The 7-Day Programmable Controller is the perfect way to maximise energy efficiency without compromising on comfort.

Optional Wi-Fi Control

Never return to a cold room again. With Optional Wi-Fi Control you can pre-heat or cool a room no matter where you are. Running late, arriving early, or even when you're in a different country, with Wi-Fi Control you'll always arrive to total comfort. Wi-Fi Control is Amazon Alexa and Google Home enabled* so you can take your comfort to the next level and enjoy hands-free heat pump control.

*For voice control you will need a smart speaker/display/assistant/phone compatible with Amazon Alexa or Google Assistant.

EER = Energy Efficiency Ratio
COP = Coefficient of Performance
AEER = Annual Energy Efficiency Ratio
ACOP = Annual Coefficient of Performance
SPL = Sound Pressure Level
PWL = Sound Power Level
Q - SHi = Quiet–Low–Medium–High–Super High
Rating Conditions (AS / NZS 3823).
Cooling: Indoor: 27°C DB, 19°C WB. Outdoor: 35°C DB
Heating: Indoor: 20°C DB Outdoor: 7°C DB, 6°C WB.
*1 Indoor Sound Levels rated at lowest fan speed
*2 SPL/PWL measured under rated operating frequency
*3 Maximum length is inclusive of height differential i.e. (30/15) means the pipe can be 15m high and 15m across for a total length of 30m.
Star Rating is based on Seasonal Energy Efficiency Rating Standard for New Zealand - cold zone (GEMS2019)

For more information about the new AS90 High Wall Heat Pump, contact your Air Conditioning Territory Manager.

Mitsubishi Electric Celebrates Centennial with a Revised Vision for the Future

Monday 22nd of March 2021
This year, Mitsubishi Electric proudly celebrates a milestone of supplying consumers with their technological needs for 100 years. This celebration not only marks a long history of technological advancements in electrical and electronic equipment but also marks a new way forward with the release of the Group’s new corporate philosophy system setting the company up for success through the next 100 years.

Mitsubishi Electric was established in 1921 as a spinoff of the Mitsubishi Shipbuilding Company’s electric factory. For the past 100 years, the Mitsubishi Electric Group has contributed to a vibrant and sustainable society across the world by providing a wide range of reliable, high-quality products and services infused with high technology and creativity in fields ranging from homes to outer space.

It is with much anticipation that the release of the Group’s new corporate philosophy system, ‘Changes for the Better’, will better align with their ideologies moving forward. The revised purpose will update the Group’s reason for existence as well as their core values and attitude that all employees already embrace and cherish in serving their customers and society as a whole.

Changes for the Better

‘Changes for the Better’, represents Mitsubishi Electric Group’s attitude to “always strive to achieve something better,” as the Group continues to change and grow.

The team at Mitsubishi Electric share a strong will and passion to continuously aim for change, reinforcing our commitment to creating “an even better tomorrow.”

With this mindset and way of being at the forefront, the revised organisational purpose was born:

“We, the Mitsubishi Electric Group will contribute to the realisation of a vibrant and sustainable society through continuous technological innovation and ceaseless creativity.”

Values to Guide the Revised Purpose

In order to successfully achieve the new company purpose, a strong set of values needed to be established. Mitsubishi Electric Group is excited to announce the following seven values that the team will live by to successfully achieve continuous technological innovation and ceaseless creativity into the next 100 years:

  • Trust
    We develop relationships based on strong mutual trust with all stakeholders including society, customers, shareholders, suppliers, and employees working together.
  • Quality
    We ensure the satisfaction of society and customers by providing products and services of the best quality.
  • Technology
    We provide society with new value by enhancing technology and onsite capabilities.
  • Ethics and Compliance
    We act with high ethical standards and comply with laws and social norms.
  • Humanity
    We prioritise health and safety, promote diversity, and respect personalities and human rights.
  • Environment
    We strive to protect and improve the global environment, doing so in harmony with nature.
  • Society
    We contribute to the development of a better society as a corporate citizen.

Mitsubishi Electric’s Centennial Logo

To round out this centennial celebration, Mitsubishi Electric has also launched a brand-new logo that expresses the idea of transformation over the next 100 years.

At a glance, the logo appears to be a simple pattern of slanted red and white lines, but by adjusting one’s gaze the number “100” can be seen, even when the logo is turned upside down. By encouraging people to look at things from different perspectives, the logo expresses the Mitsubishi Electric Group’s strong will to create new value and transform itself over the next 100 years, aiming to provide integrated solutions to address diversifying social challenges uniting all the capabilities inside and outside of the Group.

Moving Forward into the Next 100 Years

Mitsubishi Electric, which is profoundly grateful to many stakeholders who have supported the Group over the decades, including employees as well as customers and business partners, is determined to become a group company that responds to the demands of the new.

Based on the new corporate philosophy system, the Group aims to contribute to the realisation of a vibrant and sustainable society by addressing diversifying social challenges through continuous innovation over the next 100 years.

Introducing the new Zoned Energy Rating Labels

Thursday 4th of March 2021
Heat pumps are adopting a new energy rating scale and label, based on the international Seasonal Energy Efficiency Ratio (SEER) methodology which identifies how air conditioners perform in different climate zones. The new rating scale will assess winter heating performance more accurately for New Zealand consumers.

Energy efficiency ratings are slowly changing in New Zealand

Air conditioners and heat pumps sold in New Zealand must, by law, comply with Minimum Energy Performance Standards (MEPS) and Mandatory Energy Performance Labelling (MEPL)/Energy Rating Label (ERL) requirements.

As such, new air conditioner regulations will be reflected in a new label called the Zone Energy Rating Label (ZERL). These regulations have already been adopted in Australia and are expected to become mandatory in May 2021 for New Zealand, dependant on Cabinet sign-off.

Six months’ notice will be provided via the official Government newspaper and authoritative journal of constitutional record ‘The Gazette’ before the new regulations come into force in New Zealand.

What does this mean for Mitsubishi Electric products?

Mitsubishi Electric is in a period of transition where you will start seeing new products or revisions registered under the new SEER regulations and displaying the new ZERL. This gives consumers and installers more information about which air conditioner will perform best in their climate zone.

Our Black Diamond Series High Walls, the new EcoCore Designer Series High Walls and RapidHeat Floor Consoles with R32 refrigerant are the first products to adopt these new standards.

Key features

What are the main differences between the current and new regulations?

  • There is a new label, called the Zoned Energy Rating Label (ZERL)
  • Cooling MEPS levels have increased in New Zealand to mirror Australian MEPS levels
  • Single and double duct portable air conditioning units are included
  • Test methods and requirements for all regulated product classes have changed significantly
  • Registration of multi split air conditioning units has changed

How to read the new Zoned Energy Rating Label (click to enlarge)

For more information about the new labels contact your nearest Territory Representative.

BDT welcomes new General Manager Tony Hamilton

Thursday 4th of February 2021
The Black Diamond Technologies (BDT) Board is pleased to announce the appointment of Tony Hamilton to the position of General Manager - Mitsubishi Electric, commencing employment from 1st February 2021.

Tony comes to BDT with a wealth of experience and has worked abroad for the last 5 years in Africa and Europe. His roles included Managing Director of Aggreko for Sub-Sahara Africa, managing a business with sales revenue of USD47m. Tony's last position was Chief Operating Officer for Zola Electric in Europe, a company focussed on bringing sustainable on and off-grid energy solutions including micro-inverter, PV and storage battery systems to developing countries.

With this plethora of experience, Darryl Rochester, Managing Director of BDT, expressed that Tony Hamilton will be invaluable in driving BDT to continue cementing Mitsubishi Electric as the market-leaders of the New Zealand HVAC industry. Furthermore, with BDT's commitment and vision of creating New Zealand's sustainable future, Tony will be integral in driving this strategic direction going forward.

"We are proud to welcome Tony to the BDT Team. With his extensive experience in corporate governance and energy-saving products over the last 5 years, Tony will be invaluable in further cementing Mitsubishi Electric in New Zealand as the leaders of sustainable and energy efficient compressor-driven products within our local market."

Tony's skill set is such that it will not only complement but add strength and value to the already successful BDT Team as it stands today. He will also provide further senior resource to ensure that the company's success will continue well into the future.

The BDT Team is excited that Tony has joined the company and looks forward to generating mutual success with its customers over the coming years.

The new R32 RapidHeat KW Floor Console Range expands to include an additional 4.2kW capacity

Thursday 21st of January 2021
With the increase in ETS Levies and the drive to move towards more sustainable refrigerants that have a lower global warming potential, we are pleased to announce the release of the new R32 RapidHeat KW Floor Console Series.

In addition to utilising more environmentally-friendly and efficient R32 refrigerant, the range now also includes a new 4.2kW capacity model.

Furthermore, in the pursuit of world-leading quietness, our engineers have also managed to reduce the decibel rating to just 18dBA*. This makes New Zealand’s quietest floor console even quieter!

New RapidHeat KW Floor Console

EcoCore Technology increases efficiency with lower global warming potential. Superior energy efficiency is achieved by incorporating a large, high-density heat exchanger, an advanced high-efficiency fan motor and a next-generation compressor using the latest in super-efficient R32 refrigerant.

Safe R32 refrigerant leak detection sensor for peace of mind

As a safety feature, the MFZ-KW Floor Consoles are equipped with a refrigerant leak detection sensor contained within the indoor unit. In the unlikely event of a refrigerant leak fault, the unit will cease operation and continue to operate the indoor fan to avoid refrigerant pooling.

New Zealand’s quietest floor console is now even quieter

Now starting from a whisper-quiet 18dBA* the new RapidHeat KW Series is ideal for lounges and bedrooms where quiet comfort is valued most.

Blue Fin Coating prevents deterioration of the outdoor unit’s key components

The heat exchanger of the outdoor unit has been treated with Blue Fin Anti-Corrosion Treatment, slowing the corrosion process caused by salt and sulphur in the air especially in coastal and high sulphur areas.

For more information click here or contact your local Mitsubishi Electric Dealer which can be found here.

Reflect your style with the new EcoCore Designer Series High Wall Heat Pump

Friday 18th of December 2020
Launched in 2013, the Designer Series was a revolution in heat pump design. By introducing three colour choices to New Zealand consumers, homeowners could finally make a real style statement with their heating and cooling appliance.

The slimline Designer Series was a testament that a high wall heat pump no longer needed to be an ugly big bulky white box on the wall. As a result, it quickly became a favourite for those that valued both good design and function.

So can a design icon get even better? The answer is yes! The new EcoCore Designer Series now utilises more environmentally-friendly and energy efficient R32 refrigerant, the condenser features Blue Fin Coating, and Wi-Fi Control is now built-in for true convenience.

The slimline EcoCore Designer Series is a real achievement in superior performance and looks. For consumers, it’s an investment in all-round comfort that will never go out of style.

We see this range as a key driver for growth as New Zealanders continue their love for home improvements.

Key EcoCore Designer Series Enhancements

EcoCore Technology offers superior energy efficiency with a lower environmental impact

Energy consumption is reduced as the system incorporates a large, high-density heat exchanger, an advanced high-efficiency fan motor and a next-generation compressor using the latest in super-efficient R32 refrigerant.

Why limit yourself to one colour when you can choose from three?

Available in Rich Black Diamond, Matte Silver or new Pure White, our EcoCore Designer Series Heat Pumps make a style statement in any home.

The Rich Black Diamond and Matte Silver models now come with a black remote, while the Pure White model has a matching white remote.

Come home to perfect comfort with Built-In Wi-Fi Control

We all know what it’s like to walk into a house that’s become as hot as an oven over the day. The EcoCore Designer Series now features built-in Wi-Fi Control that enables you to manage your air conditioner from anywhere. And, with optional Voice Control, your Mitsubishi Electric Heat Pump can connect up to Amazon Alexa or Google Home Smart Speakers* so you can enjoy hands-free control with the power of your voice.

Blue Fin Coating protects the outdoor unit’s key components from corrosion for optimum efficient performance

The heat exchanger of the outdoor unit has been treated with Blue Fin Anti-Corrosion Treatment, slowing the corrosion process caused by salt and sulphur in the air especially in coastal and high sulphur areas.

* For Voice Control, a Smart Speaker/Display/Assistant compatible with Amazon Alexa or Google Home is required.
** EF25 indoor sound level on lowest fan setting in Cooling Mode.

Introducing New Zealand’s smallest high wall indoor unit – the EcoCore AP Mini Series High Wall Heat Pump

Friday 18th of December 2020
Right in time for another hot and humid summer, we are excited to announce the arrival of New Zealand’s most compact high wall indoor unit, the EcoCore AP Mini.

At only 250mm high, 760mm wide and just 178mm deep, the EcoCore AP Mini is specifically designed for areas where space is at a premium, due to a lack of available wall area.

New super compact footprint – ideal for installations above tight doorways

The new AP Mini Series indoor units have a significant 16.4% size reduction in height and a 5% reduction in width when compared to the bigger EcoCore AP Series models.

They provide a real solution for installation above doorways in bedrooms as well as in home offices – where a heat pump previously would not have been able to fit.

Two new capacities available

The AP Mini Range features two models in the line-up to efficiently heat and cool smaller living areas. They replace the AP22 indoor unit.

The 2.0kW model AP20 is available for both single split and multi room connection.

The 1.5kW model AP15 is available for multi room connection only.

EcoCore Technology uses R32 refrigerant to maximise energy efficient performance with minimised environmental impact

The new EcoCore AP Mini Series continues Mitsubishi Electric’s legacy of excellence in superior energy efficiency. This is achieved by incorporating an advanced high-efficiency fan motor and a next-generation compressor using the latest in super-efficient R32 refrigerant.

Blue Fin Coating protects the outdoor unit’s key components from corrosion for optimum efficient performance

The heat exchanger of the outdoor unit has been treated with Blue Fin Anti-Corrosion Treatment, slowing the corrosion process caused by salt and sulphur in the air especially in coastal and high sulphur areas.

Dual Barrier Coating keeps the indoor unit’s key components clean – maximising efficient performance

The patented and world’s first Dual Barrier Coating from Mitsubishi Electric prevents dust and dirt from accumulating on the inner surface of the indoor unit; keeping your heat pump clean year-round.

Return to perfect comfort with optional Wi-Fi Control*

With optional Wi-Fi Control, you can pre-heat or cool a room no matter where you are. If you are on your way home, running late, coming home early, or even if you are in a different country, with Wi-Fi Control you’ll always arrive home to total comfort.

Washable Air Purifying Filter

The EcoCore AP Mini Series is equipped with an Air Purifying Filter. This washable filter traps particles such as dust, pollen and other airborne contaminants, generating stable antibacterial and deodorising effects.

Introducing the new Mitsubishi Electric PAR-CT01MAA Touch Panel Wall Controller

Monday 14th of September 2020
The latest addition to our controller line-up features an innovative fully customisable LED screen. Furthermore, Bluetooth Low Energy (BLE) Technology connectivity simplifies setup and offers in-room smartphone control for occupants.

The PAR-CT01MAA Controller is compatible with Mitsubishi Electric VRF, Hybrid VRF and P-Series Split Systems.

A fully customisable visual display panel

The large 3.5 inch / HVGA full colour backlit display can be adapted with up to 180 colours to choose from. Both the control parameters shown as well as the background colours can be modified.

The slimline controller is available in either a Standard White or striking Premium Black case colour option, allowing it to be seamlessly matched to any contemporary interior.

You can also select which control icons are actually displayed. This means you can choose to only show the control features you want occupants to have access to in each room. This makes the icon-based graphic interface intuitive and easy to use.

In addition, the ability to upload a brand logo or an image enables further personalisation.

Bluetooth connectivity for simplified setup and in-room smartphone control

Maintenance and commissioning is straight forward. Wireless programming is done once on a smartphone and enables the same configuration to be loaded into multiple controllers over Bluetooth, saving on overall setup time.

Furthermore, Bluetooth connectivity is also available for end-user wireless control via a smartphone within 10 metres of the controller.

When room occupants download the app, they are able to connect to the remote control via their smartphone or tablet.

The controller offers the same control functions as other PAR Controllers including:

  • On/off
  • Mode of operation
  • Set temperature adjustments
  • Fan speed and louvre
  • Lossnay ventilation control
  • Weekly timer
  • Operation lock
  • Temperature range restriction

Furthermore, a hotel setting is also available for simple operation. This feature only displays the basic functions such as on/off, set temperature and fan speed modes.

A 3D i-See Sensor setting can also be added if required to support indoor units with this technology.

For more information about the PAR-CT01MAA Controller, please contact your Applied Products Sales Engineer.

The new Mitsubishi Electric Climaveneta INTEGRA i-FX-Q2-G05 4 Pipe Multifunctional Heat Pump Chiller with low GWP refrigerant R513A

Monday 14th of September 2020
The Mitsubishi Electric Climaveneta INTEGRA Range has been extended with the addition of the new i-FX-Q2-G05 multipurpose outdoor unit.

Utilising the more environmentally-friendly R513A refrigerant, the system simultaneously produces heating and chilled water using two completely independent hydronic circuits.

These heat pump chillers now exceed the minimum seasonal efficiency tier imposed by the ErP (Energy-related Products) Directive 2009/125/EC, effective in Europe from January 1st 2021.

More environmentally-friendly R513A has a GWP that is 56% lower than R134A refrigerant

The range offers high annual efficiencies achieved through inverter technology and uses low GWP R513A refrigerant.

With a GWP of only 631, R513A refrigerant has a significantly smaller carbon footprint compared to traditional systems utilising R134A.

Furthermore, the refrigerant is also non-toxic and non-flammable (Class A1 according to ISO 817).

This makes it the best choice for projects that require an eco-sustainable energy efficient solution.

The move to R513A is in line with a worldwide phasedown of the production and consumption of hydrofluorocarbons (HFC), moving away from traditional HFC refrigerants such as R134A to more environmentally-friendly, energy efficient blended refrigerants.

Next-generation VSD Screw Compressors and EC Fans maximise energy efficiency

Thanks to the use of full inverter screw compressor and EC fans, the unit guarantees optimal energy efficiency for the system.

This high efficiency translates into reduced energy consumption throughout the year for any mode of operation, no matter what the outdoor conditions are.

Full Inverter Technology ensures greater efficiencies at part load

In a traditional comfort application, an HVAC plant works at maximum power only for a limited number of hours per year. Therefore, it operates at part load conditions most of the time.

The new i-FX-Q2-G05 multipurpose units use the latest variable-speed technology in all the main components. With their accurate design, these models achieve greater efficiencies compared to similar fixed-speed units, with any combination of heating/cooling load in any season.

As these models incorporate variable-speed screw compressors, the system is able to effectively achieve any combination of load required by the HVAC plant.

Furthermore, it features superior Total Efficiency Ratio (TER) efficiencies of up to 19% higher when compared to units with fixed-speed compressors.

Improved seasonal efficiencies are achievable with variable water flow control

These higher efficiencies have been obtained by calculating both SCOP and SEER efficiency parameters with the variable water flow calculation method. As such, this takes full advantage of the variable speed technology of the i-FX-Q2-G05.

To allow the unit to manage the variable water flow, the standard configuration of the hydronic modules and flow controls has slightly changed. Now, the unit is able to control the activation and the speed (via a 0-10V signal) of an external variable speed pump both on the evaporator and on the condenser side.

Quiet operation for ultimate comfort

The inverter's ability to continuously change the compressor speed provides reduced sound emissions, especially at part load to maximise acoustic comfort.

The i-FX-Q2-G05 Range is available in three noise options:

  • CA for Class A efficiency (as standard)
  • SL-CA for super low noise with Class A efficiency
  • XL-CA for extra low noise with Class A efficiency

Reliable operation all year-round

Inverter technology provides the added advantage of no in-rush current.

Sudden power surges and variations in the starting torque are minimised. Additionally, possible disturbances to the power grid are eliminated. As a result, lowering stress on electrical components and improving the reliability of the system.

The frequency converters selected are characterised by a Displacement Power Factor between 0.97 and 0.99. As a result, the Unit Power Factor under nominal operating conditions is always higher than that of a similar unit without inverter technology.

The W3000TE Controller and KIPlink Wi-Fi Interface enables total plant control from anywhere

The i-FX-Q2-G05 utilises W3000TE Software, which is characterised by advanced functions and algorithms for optimum control. As such, it ensures a rapid adaptive response to the different dynamics of the plant, in all operating conditions.

Access to the controller is through the innovative KIPlink Interface. With more versatility than the traditional keyboard concept, users can operate the unit directly from their smartphone, tablet, or laptop.

For more information about Climaveneta Heat Pumps and Chillers, click here.

BDT introduces Black Diamond Controls – a building management system from Mitsubishi Electric.

Thursday 10th of September 2020
Black Diamond Controls from Mitsubishi Electric are powered by the industry leading Niagara Framework®, designed to integrate diverse building systems and devices into one seamless building management system (BMS).

The Niagara Framework® is a strong and secure software platform which is customisable, upgradable and scalable, meaning it can be as simple or advanced as a user wants.

Why BMS?

A building management system provides a single centralised point of control and monitoring for multiple building systems:

Key Features:

  • Integrates HVAC, lighting, fire, access control, security systems and more.
  • Provides history logging, alarm reporting, email paging, energy management and monitoring, weather compensation, plant optimisation, time scheduling and after-hours zone control.
  • Standardised user interface, with configurable user access levels. Representations of equipment, regardless of manufacturer, can be displayed in a familiar format.

Customisable graphical user interface

With the ability to customise the graphical user interface to suit the client’s requirements, BDT can deliver a detailed yet user-friendly experience for all users. Black Diamond Controls makes monitoring a building or campus remarkably simple, reducing human error and the time it takes to navigate the system.

Remote access from anywhere

The BMS can be accessed at any time from any location if configured appropriately, with the user interface accessible via any web browser.

The ability to configure secure remote system access provides a simple solution for initial service support by offsite service technicians. User access and control levels can be independently configured to restrict control and monitoring of systems depending on access level.

The BDT one stop shop total solution

Working with a single company for system design, product supply, service and technical support removes typical frustrations associated with integrating multiple building systems. BDT can now offer a building management system that natively integrates our diverse product range alongside third party devices. Ventilation products, VRF, chilled water, Ecodan, energy monitoring and more can now be integrated into a single unified platform to provide monitoring and control. With this level of system integration the scope for energy performance optimisation can be increased.

Ecodan Hot Water Heat Pumps - the next residential growth opportunity

Monday 7th of September 2020
New Zealanders are looking for other ways to invest their money saved from not travelling due to COVID-19 border closures. More Kiwis are looking to future-proof their homes with improvements which can pay off in the long term. With this in mind, now is the ideal time to expand your business into the hot water heat pump market.

After the country has seen record sales for June in many sectors across New Zealand, there is a real feel of confidence in the domestic marketplace.

This is evident in the levels of building consents granted. The latest data from Statistics New Zealand shows that despite seeing a dip in building consents during lockdown, they have bounced back with a rise of 64% this June*. Will it last? We think so. The pessimistic outlook would see a reduction in building consents moving into next year. However, this is likely to rebound for a number of reasons. One of the key drivers of this is the influx of Kiwis looking to return home during these uncertain times.

*Data sourced from Statistics New Zealand.

With money saved during lockdown and no overseas travel, New Zealanders are investing in home improvements

There is something to be said about having time to think. Many Kiwis over the lockdown have re-assessed how they spend and it’s really showing in the number refurbishments and new build consents in the last month.

Recently, we aired our new Ecodan TV ads which have stirred up many end-user enquiries and shows the potential for this market. New home builds are still going ahead as well as plenty of renovations and replacement jobs for those Kiwis who are no longer going abroad for holidays. Instead, they are using the time and money to get projects done around the house.

Consumers are safeguarding their financial future, starting with their heating bills

One of the biggest things homeowners are researching is how to reduce their hot water and heating bills to future-proof their house and livelihoods. We see this year as an opportune time for your business to invest in Mitsubishi Electric Ecodan Hot Water Heat Pump Technology as Kiwis turn to alternative means to heat their home and save on running costs.

Hot water heat pumps – the time is right to get on board!

For the hot water heat pump market, the future is bright. At Black Diamond Technologies, we are here to support you and your company with this emerging technology. Whether that’s through product knowledge, installer training, or technical support on-site, our mission is to be the best in customer service while supplying quality Mitsubishi Electric Ecodan products to homes across New Zealand.

For more information about Ecodan Hot Water Heat Pumps click here

New compact PEAD-M50/60 Ducted units with R32 refrigerant are now available

Wednesday 19th of August 2020
We are excited to introduce two new additions to our Mr Slim lineup; the small capacity PEAD-M50 (5.0kW Cooling / 6.0kW Heating) and the PEAD-M60 (6.0kW Cooling / 7.0kW Heating) Ducted models.

The thin, low-profile, ceiling-concealed indoor units are the perfect solution for unobtrusive, whole home heating and cooling. Featuring the latest in energy efficient and more environmentally-friendly R32 refrigerant, the PEAD Ducted Range blends a host of outstanding features with a premium quality, sophisticated design.

Designed specifically to fit tight ceiling spaces

The height of the PEAD Range has been unified to 250mm; making installation possible in low ceilings with minimal clearance space. It has variable airflow settings to ensure the best operation to match virtually all room layouts. With only its grilles visible, they are the perfect hidden comfort solution for heating or cooling multiple rooms at the same time.

Multiple installation possibilities

Using flexible duct design and a wide range of variations in airflow options, the PEAD Ducted Range provides greater freedom in the placement of indoor units. Furthermore, these new units are connected to a SUZ-M Outdoor, providing even greater flexibility and installation possibilities.

Wide selection of fan speeds and external static pressure

The PEAD Ducted Range incorporates five-stage external static pressure conversions and three fan speeds for the ultimate in comfort diversity. With a wide range of adjustable static pressures (35-125Pa), the PEAD Range is suited to a wide range of building types and applications.

Optional Zone Controller

The optional Zone Controller brings intuitive yet simple control to a whole new level. With the ability to control up to eight zones, automatic unloading/ramping, energy saving sensor functions and the addition of optional Wi-Fi Control, the Zone Controller’s capabilities are expanded even further. As such, you can control and monitor ducted heat pump zones in real time from absolutely anywhere.

For more information about our New Compact PEAD M50/60 Ducted Units click here.

Lossnay Single Room Ventilation with Energy Recovery is now available with an in-ceiling ducted solution

Tuesday 7th of July 2020
Mitsubishi Electric Lossnay Single Room Ventilation is designed to provide cost-effective energy recovery ventilation to one specific area in the home. In addition to the wall-mounteed VL100 Single Room Ventilation System, we have extended the range to now also include a ducted model that is the perfect unobtrusive in-ceiling solution.

The benefit of fresh air

Stale air with higher levels of CO2 is a common problem not only in schools and offices but also in homes where structures are becoming more and more airtight due to more stringent building regulations.

High levels of CO2 can affect concentration and learning as well as overall wellbeing and productivity. Furthermore, the lack of natural ventilation in airtight spaces can lead to the build-up of moisture-laden stale air. This is the perfect breeding ground for mould that can trigger allergy or respiratory problems.

The option of leaving doors and windows open to allow fresh air to enter is not always desirable or practical, with potential security risks and greater exposure to outdoor noise.

This is where a fresh air ventilation system like Lossnay can make a real difference.

Balanced pressure energy recovery ventilation

The Lossnay VL100 Range includes a ducted model that is the perfect unobtrusive in-ceiling solution. For applications without adequate roof space, there is a ductless unit purpose-built to accommodate a simple back-to-back wall hung installation.

The balanced pressure ventilation system captures and filters fresh outdoor air (as opposed to stale attic air) to replace indoor stale air for an all-round healthier, drier and warmer room.

The Lossnay Core

The Lossnay Core recovers energy from the extracted stale air, to pre-warm or pre-cool the incoming air.

As a result, an existing heating appliance in the room does not have to work as hard to reach desired temperatures, maximising energy efficiency and reducing your energy bill.

Single Room VL100 Ducted Ceiling Mount Fresh Air Energy Recovery Ventilation

This ducted model is specifically designed to provide energy efficient ventilation to ensure an individual room has a constant supply of filtered fresh air whilst minimising moisture build-up. Furthermore, incoming air is pre-warmed (or pre-cooled) so your existing heating appliance does not need to work as hard to reach desired temperatures.

Key specifications of the VL100 Ducted

  • Up to 64% heat exchange efficiency
  • Low height 204mm
  • 100mm duct diameter
  • Lightweight and compact
  • Low noise operation from 25dB on low fan speed
  • Filter replacement notification
  • Air intake can be installed away from the unit in the most convenient location
  • Ideal for residential or small commercial applications with ceiling void or roof space

Single Room VL100 Wall Mount Fresh Air Energy Recovery Ventilation

This wall mounted unit provides an effective balanced pressure ventilation solution for a specific area up to 90m2*. Lossnay recovers energy from the air being transferred to pre-warm (or pre-cool) the fresh air drawn into the room. As a result, moisture build-up is minimised and a warmer, drier and healthier indoor environment can be maintained all year round.

Because this model is ductless in design, it is ideal for applications where there is no roof space to accommodate the heat exchanger and duct work.

Key specifications of the VL100 Wall Mount

  • Up to 80% heat exchange efficiency
  • Simple installation by drilling two 75mm diameter installation holes
  • Low noise operation from 25dB on low fan speed
  • Easy to clean filters
  • Ideal for residential or small commercial applications where there is no roof space


Energy recovery ventilation works all year round

In winter a traditional ventilator captures fresh air at the cold outside temperature. Lossnay Ventilation preheats the outside air before bringing the fresh, filtered air inside.

In summer a traditional ventilator captures fresh air at the hot outside temperature. Lossnay Ventilation lowers the outside air temperature before bringing the fresh, filtered air inside.


For more information about our Lossnay Single Room Ventilation and Energy Recovery click here

Ecodan Hot Water Heat Pump easy installation and commissioning

Tuesday 7th of July 2020
In the hot water heat pump market we focus a lot on efficiency and payback period. This is certainly important but what else makes these solutions practical and beneficial to the installer and the homeowner?

To aid the modern applications of buildings and environmental impact, Ecodan Hot Water Heat Pumps have many features that add a high amount of functionality and assistance to the installer and end-user.

Floor Dry Up Mode

Many underfloor heating (UFH) installations involve wet cement poured over the UFH pipework and then has to set. The tricky part is the dry time where it’s pivotal to prevent any cracking or unwanted movement, especially when another floor layer is added on top of the dried concrete.

Ecodan solves this by using Floor Dry Up Mode which lets you set step increment by as little as 1°C for 1 to 7 days to reach the desired UFH temperature. This method can be used to dry the concrete out and remain at target temperature whilst new flooring is added.

The Dry Up Mode can be programmed to suit the concrete type and installer preference for the build, making this one of the most practical features for UFH applications on the market.

The control is in your hands with energy monitoring and system analysis

Ecodan controllers have several ways to analyse the system again to help the installer and homeowner / tenant.

Easy diagnosis with SD Card Analysis

The SD Card System Analysis will start recording the system including:

  • flow temperature
  • setpoint
  • outdoor temperature
  • flow rate
  • pump speed
  • compressor frequency
The data provides the installer with the opportunity to diagnose the system after installation and make fine-tuning if necessary to meet the customers’ requirements.

* SD logo is a trademark of SD-3C, LLC

Home automation system control

Ecodan can be controlled by connecting a MelcoBEMS Mini Interface to the indoor control board. MelcoBEMS Mini is a MODBUS interface that can enable the hot water and heating solution to be controlled and monitored by a high-end home automation or building management system in a commercial environment.

Evaluate energy usage at a glance with Energy Monitoring

This setting on the remote controller displays the energy consumed and delivered so the end-user can understand when the most energy is used and can check the consumption is low; especially if there is a high-cost electricity bill that month. We can take it one step further by adding smart energy meters to accurately monitor the electricity consumed using the Smart Grid Ready function. In addition to this, the user can set up auto recovery after power failure so the Ecodan System turns back on with all its settings as it was left and will continue to monitor energy use.

Ecodan is the next-generation in hot water and space heating

Ecodan Hot Water Heat Pump Systems are the most capable systems on the market, delivering functional and practical capability for both the installer and user. In this day and age with demands for quick, cost-effective application coupled with ongoing benefits, the Ecodan System is leagues ahead.

For more information about Ecodan Hot Water Heat Pumps, click here.

Introducing the New R32 Single Split SLZ Compact Ceiling Cassette

Wednesday 24th of June 2020
Compact and ultra-quiet, our range of ceiling cassette heat pumps are equipped with 4-way airflow and cutting edge control. They offer you the flexibility to keep your wall and floor space free without compromising on your comfort.

From May 2020, the ever-popular SLZ Compact Ceiling Cassette Range will be switching to R32 refrigerant.

Already ideal for home, office and commercial applications thanks to its stylish flat-panel profile and advanced energy-saving technologies, the introduction of next-generation R32 refrigerant makes the SLZ Series an even more efficient solution for concealed heating and cooling.

The physical design of the indoor and fascia remains unchanged, as do the many features that have made the SLZ Compact Ceiling Cassette so popular.

The 3D i-See Sensor intuitively moves airflow to wherever you are

This intelligent feature works to identify the floor temperature and how many people are present in the space; automatically switching to the optimal operating mode based on this information.

With a total of eight sensors, which rotate a full 360° in three-minute intervals, the 3D i-See Sensor is able to detect an occupant’s position to provide direct or indirect airflow, as preferred.

When the 3D i-See Sensor recognises that the area is unoccupied, it switches to Energy-Saving Mode or Auto-Off, as set by the user.

With four Power Multi models to choose from, you can be assured that Mitsubishi Electric can provide the ideal solution for your Multi Room application needs.

Stylish, slimline design that blends into any interior aesthetic

The SLZ Series’ pure white colour and compact, linear profile is ideal for discreet heating and cooling. A recipient of the Good Design Award, the new SLZ Series fits into narrow ceilings with a height of only 245mm.

Horizontal Airflow directs air across the ceiling for ultimate comfort

The SLZ Series eliminates uncomfortable draughts and provides improved airflow control with six different angles. The lateral discharge channels ensure air is distributed evenly across the entire room for ultimate occupant comfort.

Low noise levels

The patented 3D turbofan with two-stage blade structure ensures low noise operation, for a quieter comfortable environment. Starting from a hushed 25dBA*, the sound level has been reduced by 2 to 4dB from the previous model.

New easy installation

For improved efficiency during installation, the new PLA features a temporary hanging hook; no need to remove screws from the corner panel or control box, and a lightweight panel which has been reduced in weight by approximately 20% compared to the previous model. The electrical box wiring structure has also been redesigned to improve connectivity, and space has been increased for plumbing.

For more information about our range of Mr Slim Single Split R32 SLZ Ceiling Cassettes, click here

Introducing the P-Series 4-Way Ceiling Cassettes now with R32 Refrigerant

Friday 19th of June 2020
We all know the benefits of switching to R32 products – not only does R32 have a lower impact on global warming, it is also much more efficient. With this in mind, we are proud to announce the release of the R32 P-Series Range.

Ideal for both domestic and commercial installations, the P-Series Range of units provide a flexible heating and cooling solution.

The R32 range brings with it new outdoor units and a newly designed PLA 4-Way Ceiling Cassette with a host of innovative features. The rest of the range remains the same in terms of appearance and features, but now with R32 refrigerant, it is more efficient than ever before.

New Design

The PLA features a sleek, square design with bevelled edges that provide a compact and modern finish.

3D i-See Sensor as Standard

The new PLA comes standard with 3D i-See Sensor Technology.

The 3D i-See Sensor works to detect the floor temperature and how many people are present in the room automatically switching to the optimal operating mode.

With a total of 8 sensors which rotate a full 360º in three minute intervals, it is able to detect people’s position in the room to provide direct or indirect airflow as preferred.

Horizontal Airflow Control

The Horizontal Airflow function prevents both cold draughts and/or heating airflow from striking occupants directly, thereby keeping people from becoming over-chilled/over-heated.

Wide Airflow

Deluxe PLA Series Cassettes utilise wide-angle outlets to distribute airflow to all corners of the room, ensuring the room is cooled/heated in an even manner.

Both Horizontal Airflow and fan speed have been reduced by 20% compared to conventional models, contributing to increased comfort for occupants.

New Easy Installation

For improved efficiency during installation, the new PLA features a temporary hanging hook; no need to remove screws from the corner panel or control box, and a lightweight panel which has been reduced in weight by approximately 20% compared to the previous model. The electrical box wiring structure has also been redesigned to improve connectivity, and space has been increased for plumbing.

New Wireless Controller

With a backlit screen for easy viewing, and advanced feature controls exclusive to the PLA Series, including 3D i-See Sensor and individual vane settings, the deluxe wireless controller offers the ultimate in customised comfort.

Automatic Grille Lowering Function

An Automatic Grille Lowering function capable of stopping at eight different heights is available to simplify filter maintenance.

  • The packaged elevating (up/down) controller in the grille (PLP-6EAJ) can be used when outdoor unit is either PUZ Series or SUZ Series.
  • Wired Remote Controller (PAR) has Automatic Grille Lowering function. This function is only available when indoor unit connects with PUZ Series outdoors.

Other Features

An Automatic Grille Lowering function capable of stopping at eight different heights is available to simplify filter maintenance.

  • Stylish indoor unit vane covers (when unit is turned off)
  • Quiet operation with improved airflow path and powerful high-capacity flow fan
  • Maximum upward draining of 850mm
  • Deluxe Wireless Remote Controller option available
  • Duct flange for fresh-air intake
  • Branch duct

Hybrid VRF – The advantage of water

Friday 19th of June 2020
As BDT and Mitsubishi Electric grow into the new era of sustainability and environmental awareness, one thing has become very clear; systems comprising of water will play a large part in the transference of heat in the commercial HVAC market globally in the coming years.

Hybrid VRF (HVRF) bridges the gap between VRF / VRV solutions and heat recovery chiller plant, offering an alternative to common hydronic systems while still retaining the inherent benefits associated to the water-based options.

The HVAC market has been using water as a refrigeration and heating medium for many years, with chilled water being a safe, reliable refrigerant with a number of beneficial characteristics. Chillers, hot water heat pumps and 4 or even 6 pipe hydronic solutions have been utilised in large commercial buildings for many decades.

Simultaneous heating and cooling with full heat recovery

Heat recovery chiller systems are considered the crème-de-la-crème of HVAC solutions, incorporating the inherent efficiencies only possible through heat recovery with the comfort and security of water as the medium being circulated into occupied spaces. However, these have been a largely uneconomical option for small to medium scale applications.

The economic hydronic heat recovery solution

The Hybrid VRF (HVRF) product category bridges the gap between VRF / VRV solutions and heat recovery chiller plant, offering an alternative to common hydronic systems while still retaining the inherent benefits associated to the water-based options.

Hybrid VRF places itself in the market as an economic hydronic heat recovery solution which can be applied from high-end residential homes and the small commercial market right through to a large scale modular solution.

All the benefits of VRF with significantly lower global warming potential

With the adoption of global initiatives to reduce greenhouse gases and local legislative requirements with regards to occupant safety, HVRF provides design engineers and mechanical contractors the mitigation of risk associated with circulating refrigerants into occupied spaces. Furthermore it also reduces the potential global warming impact the larger refrigerant volume imparts; offering a saving on associated costs.

Hybrid VRF is the new VRF standard in New Zealand for both large and small applications

In the New Zealand market alone, BDT have seen a huge uptake of Hybrid VRF in the market. With over 5MW of heating capacity ordered to date across 42 projects Hybrid VRF applications are growing.

The largest Hybrid VRF project in the New Zealand market currently in construction incorporates 512kW cooling and 575kW of heating across 11 HVRF systems and is due for completion in FY21. This scale of project is a prime example of situations where a hydronic solution could have been applied however the HVRF alterative offered ease of construction, cost savings, modularity and redundancy reduction in the case of a mechanical failure.

Of course on the other hand, smaller systems can offer the benefits of hydronic architecture to projects that may be of a scale in which it is not economic to outlay the capital cost associated to a 4 pipe solution.

One such case is PGG Wrightsons Seeds wherein the developer Ngai Tahu was seeking to design a water-based system for their new building in Lincoln. The prerequisite was for a hydronic, water-based design for occupant comfort and safety reasons. In this instance, Hybrid VRF was the nominated solution to meet the hydronic requirements while offering the installation advantages of a modular VRF system.

HVRF key benefits

Minimise the need for leak detection systems

In commercial buildings, additional leak detection systems specific to air conditioning are often installed to safeguard occupants due to increasing safety regulations. This affects hotels in particular, where air conditioners are installed in the room space and occupant safety is critical.

A leak detection system is designed to trigger an alarm if refrigerant was to leak into the room space and initiate an evacuation of the area to try and prevent harm to the occupants. These systems can be expensive and add to the cost of design, build and maintenance.

Flexible design and modularity allow for a manageable phased installation

The small footprint and modular design means building owners can now take advantage of a manageable phased installation.

Regulated phase down of CO2 emissions

GWP is a measure of the global warming potential as compared to CO2 which has a unitary GWP of 1. R32 refrigerant is zero ozone depleting (ODP)and has a GWP 66% less than R410A. For example R410A will hold 2,088 times more heat when released in the upper atmosphere than the equivalent amount of CO2 would.

R32 refrigerant is being adopted by Mitsubishi Electric as an important step in the process towards the ultimate goal of a zero ODP, zero GWP, efficient, safe, and non-toxic refrigerant.

Product Focus - Climaveneta INTEGRA Chiller

Friday 12th of June 2020
Climaveneta INTEGRA sets a new standard in the more environmentally friendly, simultaneous generation of heating and chilled water by combining the functions of a traditional boiler and chiller within a single unit.

Starting at around 44kW and with the option of integrating with a +2P Module, INTEGRA also allows for the production of high-temperature hot water up to 78°C.

INTEGRA is ideal for a variety of large-scale applications

Delivering high energy efficiencies, maximum integration and total reliability for year-round comfort, INTEGRA is perfect for hotels, hospitals, offices and shopping centres which have a high demand for heating and chilled water.

Simultaneous generation of heated and chilled water – all in one system

With the ability to produce cooling and heating capacity simultaneously from a single unit, you no longer need to install multiple machines to deliver effective hot and cold water.

Year-round heating and cooling you can count on

In modern buildings characterised by opposite overlapping loads, INTEGRA represents the most advanced solution. INTEGRA guarantees comfort throughout the year independently and with maximum efficiency. Its construction philosophy has been designed to maximise the full effect of the unit in all working conditions, and especially in the case of simultaneous heating and cooling.

Next-generation energy efficiency with heat recovery technology

INTEGRA utilises advanced heat recovery technology to lessen energy consumption and operating costs. This is achieved by taking the heat energy from an area which needs to be cooled and heats areas that need to be warmed, so the system doesn’t need to work as hard to reach the desired temperature.

Climaveneta helps decrease your building’s carbon footprint

With the use of efficient technology such as heat recovery, this solution supports progressively more challenging regulatory restrictions about the environmental impact of the building. INTEGRA respects the environment and may help increase the value of the property.

Minimise initial investment and maintenance costs

By producing hot and cold water with the single unit, INTEGRA compares favourably with the more traditional combination of separate chiller and boiler. This also lowers initial investment and maintenance costs.

A smaller plant size to enhance the building’s usable space

The plant room spaces and site operations are reduced, with substantial savings in terms of time and cost. INTEGRA satisfies the most daring architectural solutions and ensures optimum use of the building.

Designed to maximise efficiency at partial load

All air conditioning systems, as well as INTEGRA units, are normally selected to cover the peak load. This means that for most of the year units are operating at partial loads. For multi-purpose systems, this condition can occur more than 8,000 hours annually.

This is the reason why INTEGRA ensures maximum efficiency at partial load; a design focus that stems from the awareness of the real operating conditions of the unit and is accentuated in models with inverter technology – the exclusive i-FX-Q2 unit.

INTEGRA – the ultimate solution for any environment

INTEGRA Systems are derived from Climaveneta’s long experience proven by over a thousand prestigious projects from all over the world.

Located at many different latitudes, all the installations share high energy efficiency, maximum integration and total reliability. All this as a result of the unique Climaveneta experience.

For more information about Climaveneta INTEGRA, click here

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You can contact us via the Online Enquiry or if you would prefer to speak directly to us please call 0800 784 382 during normal office hours.