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The connection of indoor unit pipes must use double spanners.
The installing torque shall be as given in the following table.
Double-spanner
operation
Pipe expansion dimensions as follows:
20
Pipe expander
A
Piping Connection
Flare connection
Gas pipe
3-way valve
Indoor
Unit
Outdoor
unit
Liquid
pipe
2-way valve
Flare connection
AD092XLERA
AD122XLERA
AD142XLERA
AD182XLERA
Flare connection
Gas pipe
3-way valve
Indoor
Unit
Outdoor
unit
Liquid
pipe
2-way valve
Flare connection
A
To outdoor unit
To gas pipe
A(adaptor, from 9.52 to 12.7)
6.35 mm (1/4
"
) 0.8 ~ 1.5
9.52 mm (3/8
"
) 1.0 ~ 1.8
12.7 mm (1/2
"
) 1.2 ~ 2.0
Pipe diameter ÿ Size A (mm)
Connecting pipe
O.D.(mm)
ÿ6.35
ÿ9.52
ÿ12.70
Installing torque
(N-m)
11.8 (1.2kgf-m)
24.5 (2.5kgf-m)
49.0 (5.0 kgf-m)
Increased installing
torque (N-m)
13.7 (1.4 kgf-m)
29.4 (3.0 kgf-m)
53.9 (5.5 kgf-m)
Instructions to installation
Slope Damage Bur Partial Overlong
Correct
Incorrect