Haier 1U09BS3ERA 1U12BS3ERA Manuel D'installation page 12

1.
09K 12K 15K
18K 24K
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 R410A.
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
additional refrigerant.
Indoor unit
B
A
Outdoor unit
Outdoor unit
Oil trap
B
A
Flare nut
Torque wrench
Outdoor unit
B
A
Max.Elevation:
In case the elevation A is more
than 5m, oil trap shoud be
installed every 5~7
Max. Length:
Bmax
Min. Length: Bmin
In case the pipe length B is
Indoor unit
more thanDm, the refrigerant
should be charged, according
to E g/m.
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")
Indoor unit
09K
12K
Amax
15K
18K
24K
Fastening torque
18N.m
42 N.m
55N.m
60 N.m
charge
Amax Bmax Bmin C
10 15 3 5
10 15 3 5
15 25 3 5
D E
7 20
10 20
10 20