| S Series |
| Refrigerant Piping Restrictions |
Total length: Greatest length: Greatest length after first branch: | Maximum 100m Maximum 70m Maximum 30m |
| Top-bottom differentials between units |
Indoor/outdoor [outdoor higher]: Indoor/outdoor [outdoor lower]: Indoor/intdoor: | Maximum 30m Maximum 20m Maximum 12m |
 |
| Y Series/SUPER Y Series |
| Refrigerant Piping Restrictions |
Total length: Greatest length: Greatest length [equivalent length]: Greatest length after first branch: | Maximum 220m Maximum 100m Maximum 125m Maximum 40m |
| Top-bottom differentials between units |
Indoor/outdoor [outdoor higher]: Indoor/outdoor [outdoor lower]: Indoor/intdoor: | Maximum 50m Maximum 40m* Maximum 15m |
| Note: When cooling operation is performed when the outdoor temp. is 10°C or lower (PUHY-P200 . 250YMF-C : 0°C or lower) : 4m or less. |
 |
| R2/WR2 Series |
| Refrigerant Piping Restrictions |
Total length: Greatest length: Greatest length [equivalent length]: Between outdoor unit and BC controller: Between BC controller and indoor unit: | Maximum 220m Maximum 100m (90m) Maximum 125m (115m) Maximum 70m (60m) Maximum 30m |
| Top-bottom differentials between units |
Indoor/outdoor: Indoor/outdoor [outdoor lower]: Indoor/BC controller: Indoor/indoor: | Maximum 50m Maximum 40m Maximum 15m* Maximum 15m* |
Note: Figures in parentheses are for when the total indoor unit capacity is 131-150% of outdoor unit capacity. *Maximum 10m for indoor units with model numbers 125 or higher. |