Service manual

Liquid Pipe (Small Pipe)
- - - - - - Gas Pipe (Big Pipe)
Fig.11-17
1) Pipe Connection
a) Align the bell mouth of copper tube with the center of threaded connector. Tighten the
bell-mouthed nut with your hand.
b) Tighten the bell-mouthed nut with torque wrench, until you hear a click sound. See Fig.11-18.
The torque specification is shown in Table 11-3.
Fig.11-18 Fig.11-19
Table 11-3
Pipe Diameter Tightening Torque
1/4＂
15-30 (N·m)
3/8＂
35-40 (N·m)
5/8＂
60-65 (N·m)
1/2＂
45-50 (N·m)
3/4＂
70-75 (N·m)
b. Outdoor Unit Placed Higher than Indoor Unit
Indoor unit
Outdoor unit
Oil trap of air pipe
One oil trap is
provided every
4~6 meters.
Piping for indoor unit End-expanded nut Piping
Wrench
Torque wrench
Liquid valve
A
ir valve
1-way
valve
Allen wrench
Screwdriver
Valve stem
Valve
cap
101