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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.
\] 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
J``r.
Note:
{Q{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
$$-
$$#
$$<
$$%
$$;
$$%
$>%
$$>
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