Haier AD092XLERA Service Manual page 15

Commercial Air Conditioner
Piping Connection
Flare connection
AD092XLERA
AD122XLERA
AD142XLERA
AD182XLERA
To gas pipe
Pipe expansion dimensions as follows:
Pipe diameter
Ø
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.
Installing torque
Connecting pipe
O.D.(mm)
11.8 (1.2kgf-m)
Ø6.35
24.5 (2.5kgf-m)
Ø9.52
49.0 (5.0 kgf-m)
Ø12.70
Gas pipe
Indoor
Unit
Liquid
pipe
Flare connection
Flare connection
Gas pipe
Indoor
Unit
Liquid
pipe
Flare connection
A
(adaptor, from 9.52 to
Correct
Size A (mm)
0.8 ~ 1.5
1.0 ~ 1.8
Slope Damage Bur Partial Overlong
1.2 ~ 2.0
Increased installing
(N-m) torque (N-m)
13.7 (1.4 kgf-m)
29.4 (3.0 kgf-m)
53.9 (5.5 kgf-m)
-15-
Model: AD09/12/14/182XLERA
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