LG ARUN40GS2A Quick Manual Download Page 19

Page: 19 / 35

ENGLISH

Penetrations

Ⓐ

Sleeve

Ⓑ

Heat insulating material

Ⓒ

Lagging

Ⓓ

Caulking material

Ⓔ

Band

Ⓕ

Waterproofing layer

Ⓖ

Sleeve with edge

Ⓗ

Lagging material

Ⓘ

Mortar or other incombustible caulking

Ⓙ

Incombustible heat insulation material

When filling a gap with mortar, cover the penetration part with steel plate so
that the insulation material will not be caved in. For this part, use incom-
bustible materials for both insulation and covering. (Vinyl covering should not
be used.)

Inner wall (concealed)

Outer wall

Outer wall (exposed)

Floor (fireproofing)

Penetrating portion on fire

limit and boundary wall

Roof pipe shaft

CAUTION

- Follow ordinance of your governmental organization for technical

standard related to electrical equipment, wiring regulations and guid-
ance of each electric power company.

- Install the Outdoor Unit communication cable away from the power

source wiring so that it is not affected by electric noise from the power
source. (Do not run it through the same conduit.)

- Be sure to provide designated grounding work to Outdoor Unit.

- Give some allowance to wiring for electrical part box of Indoor and

Outdoor Units, because the box is sometimes removed at the time of
service work.

- Never connect the main power source to terminal block of communi-

cation cable. If connected, electrical parts will be burnt out.

- Use 2-core shield cable for communication cable.(O mark in the figure

below) If communication cable of different systems are wired with
the same multiplecore cable, the resultant poor transmitting and re-
ceiving will cause erroneous operations. ( mark in the figure
below)

- Only the communication cable specified should be connected to the

terminal block for Outdoor Unit communication.

CAUTION

Be sure to correct the outdoor unit to earth. Do not connect ground
wire to any gas pipe, liquid pipe, lightening rod or telephone earth
line. If earth is incomplete, it may cause an electric shock.

CAUTION

• This product have reversed phase protection detector that only

works when the power is turned on. If there exists black out or the
power goes on and off which the product is operating, attach a re-
versed phase protection circuit locally. running the product in re-
versed phase may break the compressor and other parts.

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

them together with power lines.

• 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 unit’s lifespan will be reduced.

• Introducing with a missing N-phase or with a mistaken N-phase will

break the equipment.

CAUTION

The Power cord connected to the unit should be selected according
to the following specifications.

WARNING

Be sure to have authorized electrical engineers do the electric
work using special circuits in accordance with regulations and this
installation manual.
If power supply circuit has a lack of capacity or electric work defi-
ciency, it may cause an electric shock or fire.

ELECTRICAL WIRING

2-Core Shield Cable

Multi-Core Cable

Remote
control

Indoor

Unit

Outdoor Unit

Indoor

Unit

Indoor

Unit

Indoor