Pipe Expanding Method - Gree GWH09QB-K6DNA1C/I Manuel D'utilisateur

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Pipe expanding method

Note:
Improper pipe expanding is the main cause of refrigerant leakage. Please expand
the pipe according to the following steps:
A: Cut the pipe
the distance of indoor unit and
outdoor unit.
● Cut the required pipe with pipe cutter.
pipe
leaning
B: Remove the burrs
● Remove the burrs with shaper and
prevent the burrs from getting into
the pipe.
downwards
C: Put on suitable insulating pipe
D: Put on the union nut
● Remove the union nut on the indoor
connection pipe and outdoor valve;
install the union nut on the pipe.
union pipe
pipe
Copyright 2018. This translation is property of GREE PRODUCTS SL. All rights reserved. Total or partial reproduction without its express authorization is prohibited.
pipe cutter
uneven
burr
pipe
shaper
E: Expand the port
● Expand the port with expander.
Note:
● "A" is different according to the
diameter, please refer to the sheet
below:
Outer diameter
(mm)
Φ6 - 6.35(1/4")
Φ9.52(3/8")
Φ12-12.7(1/2")
Φ15.8-16(5/8")
F: Inspection
● Check the quality of expanding port.
If there is any blemish, expand the
port again according to the steps
above.
smooth surface
the length is equal
38
hard
mold
expander
pipe
A(mm)
Max
1.3
1.6
1.8
2.4
improper expanding
damaged
leaning
crack
surface
Min
0.7
1.0
1.0
2.2
uneven
thickness

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