LG ARUN048GSS4.EWGBLUS Manual de usuario descargar pdf (Pagina 19)

ENGLISH

2-Core Shield Cable

Multi-Core Cable

Remote

control

Remote

control

Remote

control

Remote

control

Indoor

Unit

Outdoor Unit

Indoor

Unit

Indoor

Unit

Indoor

Unit

Outdoor Unit

Remote

control

Remote

control

Indoor

Unit

Indoor

Unit

Remote

control

Remote

control

Indoor

Unit

Indoor

Unit

Precautions when laying power wiring

Use round pressure terminals for connections to the power terminal

block.

Round pressure terminal

Power cable

- For wiring, use the designated power cable and connect firmly, then

secure to prevent outside pressure being exerted on the terminal

block.

- Use an appropriate screwdriver for tightening the terinal screws. A

screwdriver with a small head will strip the head and make proper

tighterning impossible.

- Over-tightening the terminal screws may break them.

CAUTION

• Use the 2-core shield cables for communication cables. Never use

them together with power cables.

• The conductive shielding layer of cable should be grounded to the

metal part of both units.

• Never use multi-core cable

• As this unit is equipped with an inverter, to install a phase leading

capacitor not only will deteriorate power factor improvement effect,

but also may cause capacitor abnormal heating. Therefore, never in-

stall a phase leading capacitor.

• Make sure that the power unbalance ratio is not greater than 2%.

If it is greater the units lifespan will be reduced.

Side panel

WARNING

The temperature sensor for outdoor air should not be exposed to

direct sunlight.

- Provide an appropriate cover to intercept direct sunlight.

When none are available, follow the instructions below.

- Do not connect wiring of different thicknesses to the power terminal

block. (Slack in the power wiring may cause abnormal heat.)

- When connecting cable which is the same thickness, do as shown in

the figure below.

※Pictures may differ depending on the model.

4HP/5HP/6HP

Indoor communication PCB

Main PCB

Terminal block

(Take care of the phase

sequence of 3-phase

4-wire power system)

PI485 PCB

(Inside the control box)

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 in-

door units with shielded cable, connect the shield ground to the earth

screw.

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LG ARUN048GSS4.EWGBLUS Manual de usuario Pagina 19

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