5. Example wiring diagram
Please refer to the indoor unit installation manual to find detailly how to set and check the communication
address.
Incorrect address setting will cause abnormal to the system.
Test running
Before starting the test running, please confirm the following works have been done successfully.
1) Correct piping work;
2) Correct wiring work;
3) Correct match of indoor and outdoor unit;
4) Proper recharge of refrigerant if needed;
5)Correct indoor unit addresses setting.
Make sure that all the stop valves are fully open.
Check the voltage supplied to the outdoor and indoor units, please cinfirm that is 230V.
6. After installation, please fill in the following table for easy daily maintenance:
Indoor unit C
Indoor unit B
Indoor unit A
1PH, 220-230V~, 50Hz
Outdoor unit
Power supply cable: H05RN-F 3G 4.0mm
2
Communication cable (Shield wire): H05RN-F 2X1.5mm
2
Connecting cable (Shield wire): H05RN-F 3G 2.5mm
2
L N
N L
C1 C2
The distance between the signal wires and the power cabes should be at least 50mm.
Indoor unit NO.
A
B
C
Model of indoor unit
Serial No.
Room name
-25-
Commercial Air Conditioner
Model: AU18
/22
2XFERA
AS072/092/122XVERA