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52 Outdoor Unit52 Outdoor Unit
Electrical Wiring
5.1 60Hz
u Example Connection of Communication Cable
n 1 Outdoor Unit - 3Ø, 460V
WARNING
• Indoor Unit ground Lines are required for preventing electrical shock accident during current leakage,
Communication disorder by noise effect and motor current leakage (without connection to pipe).
• Don't install an individual switch or electrical outlet to disconnect each of indoor unit separately from the power supply.
• Install the main switch that can interrupt all the power sources in an integrated manner because this system consists of the
equipment utilizing the multiple power sources.
• If there exists the possibility of reversed phase, lose phase, momentary blackout or the power goes on and off while the product
is operating, attach a reversed phase protection circuit locally.
Running the product in reversed phase may break the compressor and other parts.
3 Phase 3 Wires
Power supply
60Hz 460V
Power supply switch
(Switch fuse : ELCB)
3 Phase 3 Wires Power line(R, S, T)
Communication line (3 line): Wired remote control
Single Phase of power supply line(L(1),L(2))
Communication line (2 shield line):
Between Indoor Unit and Outdoor Unit
3(A) 4(B)
The GND terminal is a '–' terminal for the central controller, not Ground Line
Between Indoor and
Master
Outdoor unit
IDUSODU DRY1 DRY2 GND 12V
INTERNET
BABA
Master
Outdoor unit
(Main Switch)
3(A) 4(B) 3(A) 4(B)
Power supply
1 Phase 60Hz
208/230V
Power supply switch
(Switch)
Pull Box(Installer Option)
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