Communication line
Control wiring between Dx-coil controller and outdoor unit
(2-core shield wire)
Remote controller wiring
Remote controller wiring, remote controller inter-unit wiring
Total wire length of remote controller wiring and remote
controller inter-unit wiring = L
2-core with non-polarity wire is used for wiring of the remote controller wiring and group remote controllers wiring.
CAUTION
The remote controller wire (communication line) and AC220-240 V wires cannot be parallel to contact each other and
cannot be stored in the same conduits. If doing so, a trouble may be caused on the control system due to noise, etc.
15-EN
Wire size
In case of wired type only
– 15 –
(Up to 1000 m) ≥ 1.5 mm²
(Up to 2000 m) ≥ 2.5 mm²
Wire size: 0.75 mm² to 2.5 mm²
Up to 500 m