Outdoor unit
Outdoor unit 1.Connection of pipes
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.
Half union | Flare nut |
Spanner
Torque wrench
Be careful that matters, such as wastes of sands, etc. shall not enter the pipe.
Forced fastening without careful centering may damage the threads and cause a leakage of gas.
Pipe Diameter ( ) | Fastening torque | |
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|
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Liquid side | 6.35mm(1/4") | 18N.m |
Liquid side | 9.52mm(3/8") | 40N.m |
|
| |
Gas side 9.52mm(3/8") | 40N.m | |
Gas side 12.7mm(1/2") | 50N.m | |
Gas side 15.88mm(5/8") | 60N.m | |
2.Attaching Drain-Elbow
If the
3.Purging Method:
Push the air out of the indoor unit and piping as followes:
Tighten the caps on the valves with specified torque.
| Tighten torque N.m |
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Valve rod | |
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Valve cap | |
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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.
| for 5k 7k 9k 10k 12k 13k 18k | ||
Piping length | 5m | 7m | 10m |
Additional amount | No need | 40g | 100g |
|
| for 22k 24k |
| |
Piping length | 5m | 7m | 10m | 20m |
Additional amount | No need | 120g | 300g | 900g |
Indoor unit
A |
| A | |
| Outdoor unit | ||
Outdoor unit | B | B | |
Indoor unit | |||
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Max.Elevation: for 5K 7K 9K 10K 12K 13K: B=5m for 18K 22K 24K: B=10m
Max. Length: | for 5K 7K 9K 10K: A=7m | ||
| for 12K | 13K: | A=10m |
| for 18K | 22K 24K: | A=20m |
Outdoor unit
A | Oil trap |
| |
| C |
BIndoor unit
CAUTION
In case more than 5 metres，oil trap C should be installed every 5~7m.
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