Gree GKH42K3FI

U-Match Series DC Inverter Service Manual
85
Table 3-2-2 Flare nut tightening torque
Pipe Diameter
Tightening Torque
1/4
〞
(Inch)
15-30 (N·m)
3/8
〞
(Inch)
35-40 (N·m)
1/2
〞
(Inch)
45-50 (N·m)
5/8
〞
(Inch)
60-65 (N·m)
3/4
〞
(Inch)
70-75 (N·m)
7/8
〞
(Inch)
80-85 (N·m)
CAUTION!
Be sure to connect the gas pipe after connecting the liquid pipe completely.
3.1.4 Connecting the Pipe at the Outdoor Side Unit
Tighten the flare nut of the connection pipe at the outdoor unit valve connector. The tightening
method is the same as that as at the indoor side.
Figure 3-2-2
3.1.5 Checking the Pipe Connections for Gas Leaking
For both indoor and outdoor unit side, check the joints for gas leaking by the use of a gas leakage
detector without fail when the pipes are connected.
3.1.6 Heat Insulation on the Pipe Joints (Indoor Side Only)
Stick coupler heat insulation (large and small) to the place where connecting pipes.
Figure 3-2-3