Haier AB12CS1ERA Service Manual page 317

Super Match
1. Piping size
1U24GS1ERA
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 first makes working easier.
●
The connection pipe is specialized for R410A.
●
Half union
Spanner
Be careful that matters, such as wastes of sands,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 professional 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.
B
Outdoor unit
Outdoor unit
B
A
φ9.52 X 0.8mm
Liquid Pipe
φ15.88 X 1.0mm
Gas Pip
Forced fastening without careful centering may
Flare nut
damage the threads and cause a leakage of gas.
Pipe Diameter(ǿ)
Liquid side6.35mm(1/4")
Liquid/Gas side9.52mm(3/8")
Gas side 12.7mm(1/2")
Gas side 15.88mm(5/8")
Torque wrench
Outdoor unit
Indoor unit
B
A
A
●
Amax
Max.Elevation:
●
In case the elevation A is more
than 5m, oil trap shoud be
installed every 5~7
●
Max. Length:
Bmax
Oil trap
●
In case the pipe length B is
more thanDm, the refrigerant
Indoor unit
should be charged, according
to E g/m.
Fastening torque
Indoor unit
Outdoor Unit
1U24GS1ERA
315
18N.m
42 N.m
55N.m
60 N.m
Amax Bmax
C
15 25 5
E
D
45
7