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ELECTRICAL WIRING
61
ENGLISH
Field Wiring(3Ø, 208/230V)
60Hz
Example Connection of Communication Cable
• 1 Outdoor Unit - 3Ø, 208/230V
L
N
Communication Line
(2 Wires Cable)
Power Line
(3 Wires Cable)
Communication Line
(3 Wires Cable)
Power Line
(2 Wires Cable)
Power Line
(2 Wires Cable)
Power Line
(2 Wires Cable)
Power Line
(2 Wires Cable)
Power Line
(2 Wires Cable)
[Outdoor Unit]
[Indoor Units]
Power supply
3 Phase 3 Wires
60Hz 208/230V
Power supply
1 Phase 60Hz
220~240V
(Main Switch)
Pull Box
(Installer option)
Pull Box
(Installer option)
Pull Box
(Installer option)
R S T
Switch
ELCB
ELCB
WARNING
• Indoor Unit ground Lines are required for preventing electrical shock accident during cur-
rent 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 sepa-
rately 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.
!
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