LG AHNW166T0 - Page 56

System Set-Up
56
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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.
Terminal block on the main PCB
SODU IDU INTERNET DRY1 DRY2
B
A
B(D) A(C)
GND 12V
Outdoor Units