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Electrical Wiring
◆ How to connect central controller
- The communication lines connected to INTERNET terminal should be connected to central control of Outdoor
unti with care for their polarity( A → A, B → B )
- Connect communication lines between outdoor unit and indoor units through the terminal block.
- When connecting communication line between outdoor unit and indoor units with shielded wire, connect the
shield ground to the earth screw.
- When connecting the central control system with shielded wire, connect the shield ground to the earth screw.
SODU
50
Outdoor Unit
Outdoor Units
Terminal block on the main PCB
IDU
INTERNET
B
B(D)
DRY1
DRY2
A
A(C)
GND
12V
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