Haier HSU-24LEK13 [4/4] Connection of pipes
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Haier HSU-24LEK13 [4/4] Connection of pipes

Haier HSU-24LEK13 [4/4] Connection of pipes
Outdoor unit
1.Connection of pipes
2.Attaching Drain-Elbow
To bend a pipe, give the roundness as large as possible not to crush the pipe
Connecting the pipe of gas side first makes working easier.
The max vertical distance between the indoor unit and the outdoor unit is 5 m.
If the drain-elbow is used, please attach it as
figure. (Note: Only for heat pump unit.)
Half union
Flare nut
Spanner
Torque wrench
4
Outdoor unit
Forced fastening without careful centering
may damage the threads and cause a
leakage of gas.
Be careful that matters, such as wastes of sands, etc.
shall not enter the pipe.
3.Purging Method:
Push the air out of the indoor unit and piping as followes:
Tighten the caps on the valves with specified torque.
Valve rod
Valve cap
7-9
20-25
Tighten torque N.m
When connecting pipe exceeds 5 meters, 20g or 60g(only for 22k 24k) refrigerant shall be
added per exceeding meter. Charge according to the following list.
Piping length
Additional amount
5m 7m
No need 40g
10m
100g
for 18k
for 22k
Max. Length: for 5K 7K 9K 10K: A=7m
for 12K 13K: A=10m
for 18K: A=20m
Max.Elevation:
for 5K 7K 9K 10K 12K 13K: B=5m
for 18K: B=10m
Piping length
Additional amount
5m 7m
No need
120g
10m
300g
20m
900g
Outdoor unit
Indoor unit
A
B
Outdoor unit
Indoor unit
B
A
C
Outdoor unit
Indoor unit
Oil trap
A
B
CAUTION
In case more than 5 metres，oil trap
should be installed every 5~7m.
C
Pipe Diameter ( )
Liquid side 6.35mm
Gas side 9.52mm(3/8")
Fastening torque
18N.m
40N.m
Gas side 12.7mm
50N.m
Gas side 15.88mm(5/8")
60N.m
Liquid side 9.52mm(3/8")
40N.m

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