Haier HSU-24LEB03(T3) [4/4] Caution in case more than 5 metres oil trap should be installed every 5 7m
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Haier HSU-24LEB03(T3) [4/4] Caution in case more than 5 metres oil trap should be installed every 5 7m

Haier HSU-24LEB03(T3) [4/4] Caution in case more than 5 metres oil trap should be installed every 5 7m
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
Max. Length:A=20m
Max.Elevation:B=10m
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(1/4")
Gas side 9.52mm(3/8")
Fastening torque
18N.m
40N.m
Gas side 12.7mm(1/2")
50N.m
Gas side 15.88mm(5/8")
60N.m
Liquid side 9.52mm(3/8")
40N.m
When connecting pipe exceeds 5 meters, 20g(only for 18k）or 60g 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
Piping length
Additional amount
5m 7m
No need
120g
10m
300g
20m
900g
for 24k - 36k

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