Installation, 1 how to install the unit, Recommended – LG LP121CEM-Y8 User Manual

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LGE Internal Use Only

3.1 HOW TO INSTALL THE UNIT

For existing sleeve, you should measure the wall sleeve
dimensions.
Install the new air conditioner according to these installation
instructions to achieve the best performence. All wall sleeves
used to mount the new air conditioner must be in good
structural condition and have a rear grille that securely
attaches to the sleeve or the flange of the sleeve to secure the
new air conditioner.

• To avoid vibration and noise, make sure the unit is installed

securely and firmly.

When installing the sleeve, make certain there is nothing
within 20" of the back that would interfere with heat radiation
and exhaust air flow.

1) Take out the insulation strip from the upper packing.

2) Attach the insulation strip onto the rear upper side of the

wall sleeve.

3) To improve unit energy efficiency, it is recommended the

change of outside grille for an unit protection and an
addition of a plastic rear grille. (This is optional.)

4) Insulation strip prevents the exhaust air from re-entering

from either side of condenser space which may decrease
the cooling efficiency of condenser.

406 mm

(16")

1,066 mm

(42")

349 mm
(13

505 mm

(20")

42"

13-3/4"

16"

1-1/2" TYP

1/2"

21"

36"

1/2" SQ. HOLE (2 REQ'D.)

1/2" DIA.

HOLE (3 REQ'D.)

2-3/4"

5-5/8"

Over 20"

HEAT

RADIATION

WALL

INSULATION

SLEEVE

INTAKE

AIR

COOLED

AIR

1/4" Bubble

of the level

Front

Insulation Strip

Rear

Sleeve

280 mm

(11")

• There are sharp edges that can cause serious cuts.
• When lifting the air conditioner, it is HEAVY.

Use 2 people to lift.

CAUTION

Dimension of air conditioner

Dimension of sleeve assembly (optional)

Wall opening 16-1/4"x42-1/4"

Insulation strip must be attached to prevent the re-circulation of exhaust air
to inward side from the either side of condenser space. The insulation
strip is provided with the box.
Refer to the diagram below.

Recommended

13-3/4"

42"

TOP VIEW

GRILLE

FRONT
GRILE

3. Installation