Refrigerant piping work
Forced fastening without careful centering may damage the threads and cause a
leakage of gas.
Pipe Diameter (
)
Fastening Torque
Liquid Side 6.35mm (1/4'')
18N.m
Gas Side 9.52mm (3/8'')
50N.m
3. Attaching Drain-Elbow
If the drain-elbow is used, please attach it as figure.
Flare nut
Half union
Torque wrench
Spanner
Liquid pipe
Gas pipe
6.35mm ( 1/4'' ) x 0.8mm
9.52mm ( 3/8'' ) x 0.8mm
2. Connection of pipe
Apply
POE
refrigerant oil on half union and flare nut.
To bend a pipe, give the roundness as large as possible not to crush the pipe.
Connecting the pipe of gas side firstly makes working easier.
1. Selection of pipe
To this unit, both liquid and gas pipes shall be insulated as they become low temperature in operation.
Use optional parts for piping set or pipes covered with equivalent insulation material.
-30
-
12.7mm ( 1/2'' ) x 0.8mm
Gas Side 12.7mm (1/2'')
55N.m
Содержание HCNL 821 XMR
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Страница 76: ...12 2 Circuit diagram Outdoor Unit HCNL 821 XMR PCB layout 76 ...
Страница 78: ... 78 12 4 Circuit diagram Indoor Units HTFL 261 351 411 531 XMR ...