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B: Remove the burrs
Remove the burrs with shaper and prevent the
●
burrs from getting into the pipe.
downwards
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 expander.
NOTICE
●
"A" is different according to the diameter, please refer
to the sheet below:
Outer diameter
(mm)
Φ6 - 6.35(1/4")
Φ9 - 9.52(3/8")
Φ12-12.7(1/2")
Φ15.8-16(5/8")
F: Inspection
●
Check the quality of expanding port. If there is
any blemish, expand the port again according to
the steps above.
pipe
shaper
union pipe
pipe
hard
mold
expander
pipe
A(mm)
Max
Min
1.3
0.7
1.6
1.0
1.8
1.0
2.4
2.2
smooth surface
the length is equal
Working temperature range
AF On--off
Maximum
cooling
NOTE
● The operating temperature range (outdoor tempera-
ture) for cooling only unit is 18°C~48°C.
FA On-off
Maximum
cooling
Maximum
heating
NOTE
●
The operating temperature range (outdoor tempera-
ture) for cooling only unit is 18°C~43°C; for heat
pump unit is -7°C~43°C.
23
improper expanding
leaning damaged crack
surface
Indoor side
Outdoor side
DB/WB(°C)
DB/WB(°C)
32/23
48/30
Indoor side
Outdoor side
DB/WB(°C)
DB/WB(°C)
32/23
43/31
27/-
24/18
uneven
thickness
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