Single Zone Energy Star IDU Owners Manual

burrs from getting into the pipe.
pipe and outdoor valve;
install the union nut on
the pipe.
union pipe
pipe
22
Remove the burrs with shaper and prevent the
C: Put on suitable insulating pipe
smooth surface
improper expanding
the length is equal
uneven
thickness
Remove the union nut on the indoor connection
leaning
damaged
crack
surface
Expand the port with expander.
expander
pipe
hard
mold
NOTICE
●
●
any blemish, expand the port again according to
the steps above.
B: Remove the burrs
D: Put on the union nut
●
●
E: Expand the port
●
F: Inspection
shaper
downwards
pipe
Working temperature range
Check the quality of expanding port. If there is
A(mm)
Max Min
Φ6 - 6.35(1/4")
1.3 0.7
Φ9 - 9.52(3/8") 1.6 1.0
Φ12-12.7(1/2")
1.8 1.0
Φ15.8-16(5/8")
2.4 2.2
Outer diameter
(mm)
"A" is different according to the diameter, please refer
to the sheet below:
54/24
(129/75)
26.7/19.4
(80/67)
Indoor side
DB/WB(°C/°F)
Outdoor side
DB/WB(°C/°F)
Maximum
cooling
24/18
(75/65)
26.7/-
(80/-)
Maximum
heating
●
The operating temperature range (outdoor tempera-
ture) for cooling is -18°C(0°F)~54°C(129°F); for heating
is -30°C(-22°F)~24°C(75°F).
NOTE