Haier HAS12FAAIN Operation Manual page 61

1.
H1U09TAAOUT
H1U12TAAOUT
H1U09FAAOUT
H1U12FAAOUT
H1U18TAAOUT
H1U24TAAOUT
H1U18FAAOUT
2. Connection of pipes
To bend a pipe, give the roundness as large as possible not to crush the pipe ,
and the bending radius should be 30 to 40 mm or longer.
Connecting the pipe of gas side rst makes working easier.
The connection pipe is specialized for R32.
Half union
Spanner
Be careful that matters, such as wastes of sand s,water, , etc. shall not enter the pipe.
CAUTION
The standard pipe length is C m. If it is over D m, the function of the unit will be affected. If the pipe has
to be lengthened, the refrigerant should be charged, according to E g/m. But the charge of refrigerant
must be conducted by profes sional air conditioner engineer. Before adding additional refrigerant,
perform air purging from the refrigerant pipes and indoor unit using a vacuum pump,then charge
additional refrigerant.
Indoor unit
B
A
Outdoor unit
Outdoor unit
Oil trap
B
Indoor unit
A
Liquid pipe
φ6.35×0.8mm
Gas pipe
φ9.52×0.8mm
Liquid pipe
φ6.35×0.8mm
Gas pipe
φ12.7×0.8mm
Flare nut
Torque wrench
Outdoor unit
B
A
Max.Elevation: Amax
In case the elevation A is more
than 5m, oil trap shoud be
installed every 5~7
Max. Length: Bmax
M i n. Length: B min
In case the pipe length B is
more thanDm, the refrigerant
should be charged, according
to E g/m.
Install the removed flare nuts to the
pipes to be connected,then flare the pipes
Forced fastening without careful centering may
damage the threads and cause a leakage of gas.
Pipe Diameter( )
Liquid side6.35mm(1/4")
Liquid/Gas side9.52mm(3/8")
Gas side 12.7mm(1/2")
Gas side 15.88mm(5/8")
Outdoor Unit
H1U09TAAOUT
H1U12TAAOUT
H1U09FAAOUT
Indoor unit
H1U12FAAOUT
H1U18TAAOUT
H1U24TAAOUT
H1U18FAAOUT
22
Fastening torque
18~20N.m
30~35N.m
35~45N.m
45~55N.m
Amax Bmax Bmin C D
10 20 3 5
10 20 3 5
15 25 3 5
E
5 20
7 20
7 20