SiK401004_A
INSTALLATION 82
A Single wire B Multiple twisted wire
Unit (mm)
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 an earth leakier breaker, 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 bush.
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 bush to the cable-cross hole of the outdoor unit.
Pass the cable though rubber bush.
Connect the power cable to the terminal and earthing screws marked “L1, L2, L3 &
N”.
Use cable fastener to bundle and fix the cable.
Caution:
For air-conditioner with auxiliary heater, it is required to connect the power cable to the
“L1, L2 L3”terminals and the grounding screw.
25
10
Solderless
Terminal
Insulation layer
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