LG ARUN096BT2 Installation Manual - Page 49

Control box and connecting position of wiring

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ENGLISH Control box and connecting position of wiring Electrical Wiring - Remove all of the screws at front panel and remove the panel by pulling it forward. - Connect communication line between master and slave outdoor unit through the terminal block. - Connect communication lines 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 line between outdoor unit and indoor units with shielded wire, connect the shield ground to the earth screw. Front Panel WARNING The temperature sensor for outdoor air should not be exposed to direct sunlight. - Provide an appropriate cover to intercept direct sunlight. UW1 Chassis(460V) UW1 Chassis(208/230V) Reactor Bridge diode Inverter PCB Inverter FAN PCB Noise Filter Transformer Take care of the phase sequence of 3-phase 3-wire power system Main PCB Magnet switch Inverter Only below PCB models : Inverter ARUN115DT2 FAN PCB ARUN134DT2 ARUN154DT2 Noise Filter Main PCB Magnet switch Take care of the phase sequence of 3-phase 3-wire power system Installation Manual 49

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Installation Manual
49
ENGLISH
Electrical Wiring
Control box and connecting position of wiring
- Remove all of the screws at front panel and remove the panel by pulling it forward.
- Connect communication line between master and
slave outdoor unit through the terminal block.
- Connect communication lines 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 line between out-
door unit and indoor units with shielded wire, con-
nect 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.
UW1 Chassis(460V)
Main
PCB
Magnet
switch
Only below
models :
ARUN115DT2
ARUN134DT2
ARUN154DT2
Inverter
PCB
Reactor
Inverter
FAN PCB
Take care of the phase sequence
of 3-phase 3-wire power system
Bridge
diode
UW1 Chassis(208/230V)
Noise
Filter
Main
PCB
Magnet
switch
Inverter
PCB
Inverter
FAN PCB
Take care of the phase sequence
of 3-phase 3-wire power system
Transformer
Noise Filter
Front Panel