Control Box And Connecting Position Of Wiring - LG ARUN040GSS5 Installation Manual

Control box and connecting position of wiring

- Remove all of the screws at side panel and remove the panel by pulling it forward.
- Connect communication cables between outdoor unit and indoor units through the terminal
block.
- When the central control system is connected to the outdoor unit, a dedicated PCB must be
connected between them.
- When connecting communication cable between outdoor unit and indoor units with shielded
cable, connect the shield ground to the earth screw.
WARNING
!
The temperature sensor for outdoor air should not be exposed to direct sunlight.
- Provide an appropriate cover to intercept direct sunlight.
U80A
Side panel
(Inside the control box)
PI485 PCB
(Inside the control box)
Indoor communication PCB
Main PCB
Terminal block
(Take care of the phase
sequence of 3-phase
4-wire power system)
ELECTRICAL WIRING
U60A
※Pictures may differ depending on the model.
51
Side panel
U36A