ELECTRICAL WIRING
59
ENGLISH
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.
!
[Heat Pump]
Between Indoor and Master Outdoor unit
Slave1
Outdoor Unit
Master
Outdoor unit
34 34 34
Master
Outdoor Unit
SODU. B SODU. A IDU. B IDU. A CEN. B CEN. A DRY1 DRY2 GND 12V
SODU. B SODU. A IDU. B IDU. A CEN. B CEN. A DRY1 DRY2 GND 12V
SODU. B SODU. A IDU. B IDU. A CEN. B CEN. A DRY1 DRY2 GND 12V
• It is not the point to make ground connection.
- Make sure that terminal number of master and slave outdoor units are matched.(A-A,B-B)
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