F:Inspection
● Check the quality of expanding port. If there is any blemish, expand the
port again according to the steps above.
The length is equal
Improper expandin
g
leaning
damaged
surface
crack
uneven
thicknes
s
Smooth surface
Downwards
Pipe
Shaper
Union pipe
Pipe
Expander
Hard
mold
Pipe
Pipe
Pipe cutter
Leaning
Uneven
Bur
r
Improper pipe expanding is the main cause of refrigerant leakage.Please
expand the pipe according to the following steps:
A:Cut the pip
● Cut the required pipe with pipe cutte
r.
B:Remove the burrs
● Remove the burrs with shaper and prevent the burrs from getting into the pipe.
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.
E:Expand the port
● Expand the port with expande
r.
● "A" is di
fferent according to the diameter
, please refer to the sheet below:
Outer diameter(inch)
A(inch)
Max
Min
Ф1/4
2/39
1/36
Ф3/8
1/16
1/51
Ф1/2
1/14
1/51
Ф5/8
5/53
2/23
Appendix 3: Pipe Expanding Method
Note:
Note:
SERVICE MANUAL
Innovair Elite Mini Split
8
5
