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to connect the refrigerant pipes. Use refrigerant pipes with the thicknesses
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and do not contain any harmful contaminants such as sulfuric compounds,
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Warning:
When installing or relocating, or servicing the air conditioner, use only the
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any other refrigerant and do not allow air to remain in the lines.
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mechanical failure or system malfunction or unit breakdown. In the worst case,
this could lead to a serious impediment to securing product safety.
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with commercially available insulation materials (heat-resistant to 100 °C, 212 °F
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carefully.
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connections for gas leakage with nitrogen gas. (Check that there is no refrigerant
leakage from the refrigerant piping to the indoor unit.)
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of pipe re-fabricated.
B
Flare nut tightening torque
Copper pipe O.D.
(mm, inch)
Flare nut O.D.
(mm, inch)
Tightening torque
(N·m, ft·lbs)
¡
¡
¡
¡
¡
C
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A12, A18
A24, A30, A36, A42
Liquid side
ø6.35
ȅ
–
–
ø9.52
ȅ
Gas side
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Warning:
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1. Loosen the nut until you hear a hissing noise.
2. Do not remove the nut until the gas has been completely released (i.e.,
hissing noise stops).
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nut.
When installing the unit, securely connect the refrigerant pipes before start-
ing the compressor.
A
Flare cutting dimensions
Copper pipe O.D.
(mm, inch)
Flare dimensions
[
A dimensions (mm, inch)
[
[
[
[
)LJ
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A
B
E
F
Copper pipe O.D.
(mm, inch)
B (mm, inch)
Flare tool for R410A
Clutch type
[
´
[
´
[
´
[
´
5WR5
45°± 2°
90°± 0.5°
E
Die
F
Copper pipe