Thermal Insulation Of Pipe Joint - Gree U-Match Series Owner's Manual

U-Match Series Duct Type Unit
Pipe Diameter(In)
Screw on the flare nut of the flaring connecting pipe on the outdoor unit valve.
The method of screwing the flare nut is the same with that for indoor unit.
3.2.3.5 Thermal Insulation of Pipe Joint (Only for Indoor Unit)
Stick coupler heat insulation (large and small) to the place where connecting
pipes.
Reference A
Front outlet
Coupler heat
insulation (small)
on the pipe
1/4"
3/8"
1/2"
5/8"
3/4"
7/8"
Gas pipe
Liquid pipe
Pipe
coupling
3-way valve
Coupler heat insulation
(large) on the pipe
Liquid pipe
Gas pipe
22
Tightening Torque(N·m)
15-30
35-40
45-50
60-65
70-75
80-85
or
or
2-way valve
Reference A:
Cover this portion with heat
insulating material also without fail
No gap
Heat insulation pipe