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