Precautions for refrigerant piping
Do not twist or crush piping .
Be sure that no dust is mixed in piping .
Bend piping with as wide angle as possible .
Keep insulating both gas and liquid piping .
Check flare-connected area for gas leakage .
Piping connection method
Apply refrigerant oil to the joint and the flange .
To bend a pipe, give the roundness as possible not to crush the pipe .
When connecting pipe, hold the pipe centre to centre and then screw nut on by hand, refer to Fig .
Be careful not to let foreign matters, such as sands enter the pipe .
Spanner
Spanner
J o i n t
N u t
Pipe diameter Fastening torque (N.m)
Liquid pipe Φ6.35mm
14.2-17.2
Liquid pipe Φ9.52mm 32.7-39.9
Gas pipe Φ12.7mm 49.5-60.3
Gas pipe Φ15.88mm 61.8-75.4
Gas pipe Φ19.05mm
97.2-118.6
Field pipes can be installed in four directions (A, B, C D, E) .
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