5
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A
Drain pipe
B
Ceiling
C
Grille
D
Refrigerant pipe (liquid)
E
Refrigerant pipe (gas)
F
Main unit
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A
Flare cutting dimensions
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thickness of 12 mm or more).
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-
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flare nut.
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carefully.
Copper pipe O.D.
(mm)
Flare dimensions
øA dimensions (mm)
ø6.35
ø9.52
ø12.7
16.2 - 16.6
¡
19.3 - 19.7
¡
22.9 - 23.3
øA
55
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B
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C
Apply refrigerating machine oil over the entire flare seat surface.
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Heat insulation for refrigerant pipes:
1
Wrap the enclosed large-sized pipe cover around the gas pipe, making sure that
the end of the pipe cover touches the side of the unit.
2
Wrap the enclosed small-sized pipe cover around the liquid pipe, making sure that
the end of the pipe cover touches the side of the unit.
3
Secure both ends of each pipe cover with the enclosed bands. (Attach the bands
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Make sure that the slit in the pipe cover is facing upward when it is installed.
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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.)
A
Refrigerant pipe and insulating material
(Procure
locally)
B
Pipe cover (large) (Accessory)
C
Pipe cover (small) (Accessory)
D
Refrigerant pipe (gas)
E
Refrigerant pipe (liquid)
F
Band (Accessory)
G
Cross-sectional view of connection
H
Refrigerant pipe
I
Insulating material
J
Squeeze
5$
Flare nut O.D.
Liquid pipe
Gas pipe
Pipe size
(mm)
Tightening
torque
(N·m)
Pipe size
(mm)
Tightening
torque
(N·m)
Liquid
pipe
(mm)
Gas
pipe
(mm)
3 2'¡´
2'¡´
49 - 61
17
26
3
2'¡´
2'¡´
49 - 61
17
26
3
2'¡´
34 - 42
2'¡´
22
29
3
2'¡´
34 - 42
2'¡´
22
29
6
196
196
188
133
69
64
A
C
E
F
D
B
JDV
63 (liquid)
A
F
F B
D
E
C
Warning:
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-
ing the compressor.
