Pipe Expanding Method - Toyotomi TKN-628R32 User Manual

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.
pipe
leaning
B: Remove the burrs
prevent the burrs from getting into
the pipe.
downwards
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
pipe cutter
uneven burr
pipe
shaper
46
E: Expand the port
r.
Note:
fferent according to the
diameter, please refer to the sheet
below:
Outer diameter
(mm)
F: Inspection
port again according to the steps
above.
smooth surface
hard
mold
expander
pipe
A(mm)
Max
improper expanding
damaged
leaning crack
surface
l
r.
Min
uneven
thickness
GR