13
1) Size of pipes of Gas side and Liquid side
Φ15.9/Φ6.35
2) Connection method
8/10kW
Refrigerant
Gas side/Liquid side
R32
R32
4/6kW
MODEL
Φ15.9/Φ9.52
7.4 Connecting method
Indoor Unit
Outdoor Unit
H
max. difference in height
Gas side
Liquid side
FlaringFlaring
FlaringFlaring
≥300mm
≥300mm
Figure 7-4
CAUTION
The largest level difference between indoor unit and outdoor unit should not exceed 20m (if the outdoor unit is
above) or 15m (if the outdoor unit is below). Additionally: (i) If the outdoor unit is above and the level difference is
greater than 20m, it is recommended that an oil return bend with dimensions as specified in Figure 7-4 is set every
5m in the gas pipe of the main pipe; and (ii) if the outdoor unit is below and the level difference is more than 15m,
the liquid pipe of the main pipe should be increased one size.
Figure 7-5
4~10kW
outdoor unit
Indoor unit
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