Electrical installation
Caution:
Before installing the electrical equipment, take care on the following matters.
•
Check if the power supply is identical to the ratings on the nameplate.
•
The capacity of the power supply must be large enough.
•
The cable must be installed by professional personnel.
• Fit a disconnect switch, having a contact separation of at least 3mm in all poles, to the electricity
power line.
• Use a cable which is not lighter than polychloroprene sheathed exible cord (code designation
60245 IEC 57).
Connection of single wire
1 Use wire stripper to strip the insulation layer (25mm long) from the end of the single wire.
2 Remove the screw from the terminal board of the air-conditioning unit.
3 Use pliers to bend the end of the single wire so that a loop matching the screw size is formed.
4 Put the screw through the loop of the single wire and x the loop at the terminal board.
Connection of multiple twisted wires
1 Use wire stripper to strip the insulation layer (10mm long) from the end of the multiple twisted
wires.
2 Remove the screw from the terminal board of the air-conditioning unit.
3 Use crimping pliers to connect a terminal (matching the size of the screw) at the end of the multiple
twisted wires.
4 Put the screw through the terminal of the multiple twisted wires and x the terminal at the terminal
board.
Warning:
If the power supply exible line or the signal line of the equipment is damaged, only use special
exible line to replace it.
•
Before connecting lines, read the voltages of the relevant parts on the nameplate. Then carry out
line connection according to the schematic diagram.
•
The air-conditioning unit shall have special power supply line which shall be equipped with
electricity leakage switch and air switch, so as to deal with overload conditions.
•
The air-conditioning unit must have grounding to avoid hazard owing to insulation failure.
•
All tting lines must use crimp terminals or single wire. If multiple twisted wires are connected to
terminal board, arc may arise.
•
All line connections must conform to the schematic diagram of lines. Wrong connection may cause
abnormal operation or damage of the air-conditioning unit.
•
Do not let any cable contact the refrigerant pipe, the compressor and moving parts such as fan.
•
Do not change the internal line connections inside the air-conditioning unit. The manufacturer shall
not be liable for any loss or abnormal operation arising from wrong line connections.
Power cable connection:
1 Remove the front-side panel of the outdoor unit.
2 Pass the cable through rubber ring.
3 Connect the power supply cable to the “L, N” terminals and the grounding screw on the metal
electric box.
4 Fix the cable with cable fastener.
Recommend circuit breaker and power cable
Model Power supply Circuit breaker Min. cross sectional area
of power cable
GB-X18JR
220-240V ~ 50Hz 6A 1.0 mm
2
GU-X18JR
10A 2.5 mm
2
GB-X24JR
220-240V ~ 50Hz 6A 1.0 mm
2
GU-X24JR
10A 2.5 mm
2
GB-X36JR
220-240V ~ 50Hz 6A 1.0 mm
2
GU-X36JR
25A 6.0 mm
2
• If the power cable is longer than 15 meters, please enlarge the cross section of power cable
adequately, in order to avoid the accident due to overload.
INSTRUCTIONS OF UNIT INSTALLATION
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