DC Inverter Duct Type Air Conditioner Installation and Operation Manual
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Cautions:
1. The communication distance between the main board and the wire controller is 8 meters.
2. The wire controller shall not be installed in a place where there is water drop or large amount of water 
vapor.
8.3 Electrical Installation
Cautions: Before installing the electrical equipment, please pay attention to the following matterswhich 
have been specially pointed out by our designers:
①
Check to see if the power supply used conforms to the rated power supply specied on the nameplate.
②
The capacity of the power supply must be large enough. The section area of tting line in the room shall 
be larger than 2.5mmP
③
The lines must be installed by professional personnel.
An electricity leakage protection switch and an air switch with gap between electrode heads larger than 3mm 
shall be installed in the xed line.
1. Connection of signal wire
①
Use wire stripper to strip the insulation layer (25mm long) from the end of the signal wire.
②
Remove the screw at the terminal board of the air-conditioning unit.
③
Use pliers to bend the end of the signal wire so that a loop matching the screw size is formed.
④
Put the screw through the loop of the signal wire and x the loop at the terminal board.
2. 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 at 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.
1. Before  connecting lines, read the voltages of the relevant parts on the nameplate. Then carry out line 
connection according to the schematic diagram.
2. 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.
3. The air-conditioning unit must have grounding to avoid hazard owing to insulation failure.
4. All fitting  lines  must  use  crimp  terminals or single  wire. If multiple twisted  wires  are  connected  to 
terminal board, arc may arise.
5. All line connections must conform to  the schematic diagram  of lines. Wrong connection may  cause 
abnormal operation or damage of the air-conditioning unit.
6. Do not let any cable contact the refrigerant pipe, the compressor and moving parts such as fan.
7. 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.
8.3.1 Power Cable Connection
1. Air-conditioning unit with single-phase power supply
①
Remove the front-side panel of the outdoor unit.
②
Pass the cable though rubber ring.
③
Connect the power supply cable to the “L, N” terminals and the grounding screw on the metal electric 
box.
④
Use cable fastener to bundle and x the cable.