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Connecting the Refrigerant Pipe
There are two refrigerant pipes of different diameters:
A smaller one for the liquid refrigerant
A larger one for the gas refrigerant
The inside of copper pipe must be clean and has no dust.
The connection procedure for the refrigerant pipes varies according to the
exit position of the pipes from the indoor unit, as seen when facing the
indoor in the "A" side.
Liquid refrigerant port
Gas refrigerant port
Drain hose port
1. Remove the pinch pipe on the pipes, connect the assembly pipes to
each pipe and tighten the nuts. First tighten the nuts manually and
then with a torque wrench applying the following torque.
Outer Diameter
mm
inch
6.35
1/4
9.52
3/8
12.70
1/2
15.88
5/8
Must apply refrigerant oil on the flaring area to prevent a leak.
NOTE
2. Be sure that there must be no crak or kink on the bended area.
AM072JNESCH / AM096JNESCH
A
Wet towel
Liquid pipe
Gas pipe
Welding flame
Model
AM072JNESCH
AM096JNESCH
Torque
140~180
14~18
350~430
34~42
500~620
49~61
690~830
68~82
Drain hose port
❋ Before connection, unscrew the nuts of liquid pipe first.
Liquid pipe
Ø9.52 (3/8")
Ø9.52 (3/8")
ENGLISH-13
Refrigerant oil
Torque
wrench
Flare nut
10.3~13.3
25.1~31.0
36.1~45.0
50.2~60.5
- Product is filled with nitrogen.
Gas pipe
Ø19.05 (3/4")
Ø22.22 (7/8")
Spanner
Union
Description
Gas pipe: Welded
Gas pipe: Welded
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