15
■ Main tubing size (LA)
:
Note:
1 When only one indoor unit is connected to a 6HP unit, connect Φ19.05 gas tubing up to just before the
indoor unit, then use a socket or similar device (field supply) to change the tube diameter to Φ15.88 and
connect the gas tube to the indoor unit.
2 Siphon setting:If the outdoor unit is installed higher than indoor unit, a siphon is needed every 5 meters
in the passage of vertical gas tube. If the outdoor unit is installed lower than indoor unit, no need any
siphon.
Below
Capacity(kW)
14(5hp)
Over
Capacity(kW)
0
Main tubing
size(LA)
<32
≥32
≥66
ODU model
11.2
14
16
11.2
14
16
11.2
14
16
Gas
tubing(mm)
Φ15.88
Φ15.88
Φ19.05
Φ19.05
Φ19.05
Φ22.23
Φ19.05
Φ19.05 Φ22.23
Liquid
Tubing(mm)
Φ9.52
Φ9.52
Φ12.70
Table 9 (1)
Below
Capacity(kW)
20.2(7.2hp)
Over
Capacity(kW)
14.0(5hp)
Main tubing
size(LA)
<25
≥25
≥56
ODU model
11.2
14
16
11.2
14
16
11.2
14
16
Gas
tubing(mm)
Φ15.88
Φ15.88
Φ19.05
Φ19.05 Φ19.05 Φ22.23
Φ19.05
Φ19.05
Φ22.23
Liquid
Tubing(mm)
Φ9.52
Φ9.52
Φ12.70
Table 9 (2)
8 refrIGerANT pIpING
