ENGLISH
Installation Manual 59
1. 60Hz
u Example Connection of Transmission Cable
n 1 Outdoor Unit - 3Ø, 208/230V
The GND terminal at the main PCB is a ‘-’ terminal for day contact, it is not the point to make
ground connection.
Between Indoor and Master Outdoor unit
[Heat Pump]
B
SODU IDU INTERNET DRY1 DRY2 GND 12V
AB
A
BA
Master
Outdoor Unit
34 34 34
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 prod-
uct is operating, attach a reversed phase protection circuit locally.
Running the product in reversed phase may break the compressor and other parts.
Electrical Wiring
Field Wiring(3Ø, 208/230V)
Note
1) Field Wiring diagram is to be used as a guidelineonly. Wiring should comply with applicable local and national codes
2) ELCB must have function to prevent electrical short and over current at the same time .
3) Use copper wires only.
4) Unit must be grounded in compliance with the applicable local and national codes.
5) ELCB and fuse/breaker must install to the power line
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