burrs from getting into the pipe.
union pipe
the length is equal
Working temperature range
pipe and outdoor valve;
install the union nut on
the pipe.
pipe
21
C: Put on suitable insulating pipe
●
smooth surface
improper expanding
uneven
thickness
leaning
damaged
crack
surface
Remove the burrs with shaper and prevent the
expander
pipe
hard
mold
NOTICE
●
●
B: Remove the burrs
D: Put on the union nut
●
E: Expand the port
●
F: Inspection
shaper
downwards
pipe
A(mm)
Max Min
Φ6 - 6.35(1/4")
1.3 0.7
1.6 1.0Φ9 - 9.52(3/8")
Φ12-12.7(1/2")
1.8 1.0
Φ15.8-16(5/8")
2.4 2.2
Outer diameter
(mm)
26.7/19.4
(80/67)
50/24
Remove t
he union nut on the indoor connection
(122/75)
cooling
Maximum
Expand
the port with expander.
"A" is different according to the diameter, please refer
to the sheet below:
26.7/-
(80/-)
DB/WB
(°C /°F)
30/18
(86/65)
heating
DB/WB
(°C /°F)
Maximum
NOTE
The operating temperature range (outdoor temper-
ature) for cooling is -29°C(-20°F)~50°C(122°F); for
heat pump unit is -30°C(-22°F)~
50°C(122°F)
.
Indoor side
Check
the quality of expanding port. If there is
Outd
oor side
any bl
emish, expand the port again according to
the steps above.
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