Outdoor unit
1.Installation of Outdoor Unit
Install according to Drawing for the installation of indoor and outdoor units
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 |
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Forced fastening without careful centering may damage the threads and cause a leakage of gas.
Spanner
Torque wrench
Pipe Diameter | Fastening torque |
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Liquid side 6.35mm(1/4") | 18N.m |
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Gas side 9.52mm(3/8") | 42N.m |
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Gas side 12.7mm(1/2") | 55N.m |
Be careful that matters, such as wastes of sands, etc. shall not enter the pipe.
The standard pipe length is 5m. If it is over 5m, the function of the unit will be affected. If the pipe has to be lengthened, the refrigerant should be charged, according to 20 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.
Outdoor unit |
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Outdoor unit |
| A | Oil trap | |
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| Indoor unit | |
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| Max. Length:A=20m | |
Indoor unit | CAUTION |
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In case more than 5m | ||||
Max.Elevation:10m | Oil trap shoud be installed every 5~7m | |||
no more gas if the length of connecting pipe is less than35m | ||||
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3.Connection |
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Use the same method on indoor unit. Loosen | If wiring is not correct, proper operation can | |||
the screws on terminal block and insert the |
| not be carried out and controller may be | ||
plugs fully into terminal block, then tighten the | damaged. | |||
screws. |
| Fix the cable with a clamp. | ||
Insert the cable according to terminal number in the same manner as the indoor unit.
4.Attaching Drain-Elbow
If the
Note: Only for heat pump unit.
Drain hose
Drain elbow 
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