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9-1-4. Check power supply wiring.
●
Check that power supply wires are correctly connected
to terminals L1, L2 , L3 and N on the terminal plate in
the outdoor unit.
1
Indoor
unit
Outdoor
unit
Inter-unit
control wiring
Ground
Power supply:
380 V – 400 V
3N ~ 50 Hz
L1
L2
L3
N
7
2
4
5
L1
L2
L3
N
6
7
6
Inter-unit
power wiring
Ground
1
2
4
5
380V – (400V)
380V – (400V)
380V – (400V)
L1
L2
L3
N
220V – (230V)
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