DC INVERTER U-MATCH AIR CONDITIONERS INSTALLATION
Remove the screw at the terminal board of the air-conditioning unit.
Use crimping pliers to connect a terminal (matching the size of the screw) at the end of the multiple
twisted wires.
Put the screw through the terminal of the multiple twisted wires and fix the terminal at the terminal
board.
Warning:
If the power supply flexible line or the signal line of the equipment is damaged, only use special
flexible 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 fitting 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.
4.1.3 Power Cable Connection
1) Air-conditioning unit with single-phase power supply
Remove the front-side panel of the outdoor unit.
Pass the cable though rubber ring.
Connect the power supply cable to the “L, N” terminals and the grounding screw.
Use cable fastener to bundle and fix the cable.
2) Air-conditioning unit with 3-phase power supply
Remove the front-side panel of the outdoor unit.
Attach rubber ring to the cable-cross hole of the outdoor unit.
Pass the cable though rubber ring.
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