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Installation Manual
37
Wiring between indoor unit and outdoor
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Connect the power cable for 3phase-400V-50Hz and communication cable correctly.
Incorrect wiring will cause damage to the controllers of the outdoor unit and the
hydro unit.
Do not put the power cable and the communication cable in the same transmission
line.
Do not fasten the power cable and the communication cable together using a cable
tie or other fixing devices.
As the power of the outdoor unit is supplied from the indoor unit, connect to R, S, T, N
of the terminal block No.1 in the indoor unit.
Combining the power cable and communication cable into a single cable causes electrical
interference affecting the communication line, which will result in malfunctions and failures.
Warning
For power cable and communication cable, use cables that meet the requirements of
the specifications, and do not combine the power cable and the communication cable
into a single cable with multiple wires.