Airwell AW-YSDM048-H11 Manuale di installazione - Pagina 13
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Installation Procedure
1. Piping diagram for single split
AW-YSDM048-H11
Flare connection
Gas pipe
Indoor
unit
Liquid
pipe
2. Piping size for single split
AW-YSDM048-H11
3. Limitations for one way piping length and vertical height difference for single split
M o d e l
AW-YSDM048-H11
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.
4. 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.
Forced fastening without centering may damage the threads and cause a gas leakage.
3-way stop valve
Outdoor
unit
3-way stop valve
9.52x0.8mm
Liquid pipe
19.05x1.0mm
Gas pipe
One way piping length
less than 50 m
13
90+0.5
Install the removed flare nuts to the pipes
to be connected, then flare the pipes.
Vertical height difference
(between indoor and outdoor)
less than 30 m
Spanner
Spanner
Pipe diameter
Fastening torque (N.m)
Liquid pipe 6.35mm
Liquid pipe 9.52mm
Gas pipe 12.7mm
Gas pipe 15.88mm
Gas pipe 19.05mm
Piping Connection
Joint
Nut
14.2-17.2
32.7-39.9
49.5-60.3
61.8-75.4
97.2-118.6