Carrier 40GJB, Руководство пользователя, Страница: 27 / 28

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.
r.
pipe
pipe cutter
leaning uneven burr
B: Remove the burrs
prevent the burrs from getting into
the pipe.
downwards
pipe
shaper
C: Put on suitable insulating pipe
D: Put on the union nut
connection pipe and outdoor valve;
install the union nut on the pipe.
union pipe
pipe
E: Expand the port
r.
Note:
fferent according to the
diameter, please refer to the sheet
below:
expander
hard
mold
pipe
F: Inspection
port again according to the steps
above.
l
improper expanding
leaning
damaged
surface
crack uneven
thickness
smooth surface
Outer diameter
A
Max Min
1/20 in (1.3 mm) 0.02 in (0.7 mm)
1/24 in (1 mm)
1/24 in (1 mm)
2/25 in (2.2 mm)
3/50 in (1.6 mm)
0.07 in (1.8 mm)
1/10 in (2.4 mm)
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