haier AB092XCERA - Manual (Page 18)

16
7. Piping Connection
(1) Dimension of connecting pipe
(2) The maximum length and drop height of connecting pipe
Cautions for piping connection
Smear refrigerant oil on the joints of piping and flare.
The bending radius shall be as large as possible.
Align the pipe center when fastening, and tighten the
nut, as shown in the figure.
Pay attention to not mix foreign matters such as sands
in.
Flare connection
Gas pipe
3-way valve
Indoor
Unit Outdoor
unit
Liquid
pipe
2-way valve
Flare connection
Do not twist or deform the connecting pipe.
Do not mix dusts.
The bending radius shall be as large as possible.
Both gas pipe and liquid pipe shall be heat insulation.
No leakage in the flare.
(3) Piping connection
Connecting method
Spanner
Spanner
Joint
N u t
If not aligned ,tighten the nut by force will
damage the nut that result in gas leakage
The maximum length is 20m
The maximum drop height is 10m.
To ensure the efficiency , Pipes shall be as short as possible.
Fit the nut on and fasten
AB092XCERA
AB122XCERA
AB142XCERA
AB182XCERA
Flare connection
Gas pipe
3-way valve
Indoor
Unit Outdoor
unit
Liquid
pipe
2-way valve
Flare connection
A
Diameter of Pipe
Liquid Pipe 6.35mm
Gas Pipe 12.7mm
Tighten Torque
(N. m)
11.8
49.0
Gas Pipe 9.52mm 40
A (adaptor, from 9.52 to 12.7)
To outdoor unit To gas pipe
90 0.5
O
Gas pipe
Liquid pipe
Gas pipe
AB092XCERA
AB122XCERA
Liquid pipe
9.52mm
6.35mm
12.7mm
6.35mm
AB142XCERA
AB182XCERA
Installation Procedures