●
expander
pipe
pipe cutter
leaning
uneven
burr
●
"A" is different according to the
Min
●
Remove the burrs with shaper and
1.3
0.7
1.6
1.0
pipe
shaper
1.8
1.0
2.4
2.2
downwards
●
Check the quality of expanding port.
improper expanding
pipe
the length is equal
3
7
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
Note:
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
A(mm)
Max
union pipe
leaning
damaged
surface
crack
uneven
thickness
If there is any blemish, expand the
port again according to the steps
above.
smooth surface
Expand the port with expander.
hard
mold
E: Expand the port
●
B: Remove the burrs
prevent the burrs from getting into
the pipe.
Remove the union nut on the indoor
connection pipe and outdoor valve;
install the union nut on the pipe.
C: Put on suitable insulating pipe
D: Put on the union nut
●
the distance of indoor unit and
outdoor unit.
Cut the required pipe with pipe cutter.
pipe
