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Installation Procedure
1 Connect each assembly pipe to the appropriate valves
on the indoor and outdoor units and fasten the flare
nuts.
2 As depicted in the illustration below, tighten the flare
nut manually, and then apply the following torque
with a torque wrench.
Indoor unit
Liquid side
service valve
Outdoor unit
36
English
Gas side
service valve
Liquid
Gas
D
Pipe
Outer Diameter
Fastening torque
(D, mm)
(N·m)
6.35
14 to 18
9.52
34 to 42
12.7
49 to 61
15.88
68 to 82
19.05
100 to 120
WARNING
∙ During installation, make sure that there is no gas
leakage. When collecting refrigerant, first stop the
compressor. If the refrigerant pipe is not properly
connected and compressor runs with the service
valve open, the pipe takes in air and the pressure
rises, which may cause explosion or injury.
CAUTION
∙ Be sure to use C1220T-1/2H (Semi-hard) pipe for
more than Ø19.05 mm. If you use C1220T-O (Soft)
pipe for Ø19.05 mm, the pipe may be broken, which
can result in an injury.
Make at least one round:
It will reduce noise and vibration
∙ The appearance of the unit may be different from the
diagram depending on the model.
A
Flare
Depth (A, mm)
1.3
1.8
2
2.2
2.2
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