LG RAD-121B Owner’s Manual

MODEL:RADS-81C

RAD-121B

(RADS-81C )

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FOR YOUR RECORDS

Write the model and serial numbers here:

Model #
Serial #

You can find the numbers on a label on the side of the
product.

Dealer's Name
Date Purchased

• Staple your receipt to this page in the event you need it
to prove date of purchase or for warranty issues.

aO READ THIS MANUAL

Inside you will find many helpful hints on how to use and

maintain your air conditioner properly. Just a little preventive
care on your part can save you a great deal of time and

money over the life of your air conditioner.
You'll find many answers to common problems in the chart

of troubleshooting tips. If you review our chart of
Troubleshooting Tips first, you may not need to call for

service at all.

PRECAUTION

• Contact an Authorized Service Center for repair or

maintenance of this unit. Call 1-877-755-7932 to
locate the nearest ASC.

oThe air conditioner is not intended for use by young

children or those who require supervision.

• Young children should be supervised to ensure that

they do not play with the air conditioner.

• If the power cord requires replacement, have an

Authorized Servicer install an exact replacement part.

• Installation work must be performed in accordance

with the National Electric Code by qualified and
authorized personnel only.

2 Room Air Conditioner

SafetyPrecautions

To prevent injury to the user or other people and property damage, the following instructions

must be followed.

[] Incorrect operation due to ignoring instructions will cause harm or damage. The seriousness

is classified by the foflowing indications.

[] Because of the weight of the product, it is recommended that someone assists in

the installation.

,WARNING This symbol indicates the possibility of death or serious injury. /

,_CAUT_ON This symbol indicatesthe possibility of injuryor damage to property only.

[] Meanings of symbols used inthis manual are as shown below.

(_) Be sure not to do.

Be sure to follow the instruction.

_. WARNING

[] installation

• improperassembly or installation may cause
incorrect operation, including injury, fire, and

electric shock hazards. :, _

• It may cause fire and electric shock.

I

it maycause explosion orfire. It may cause electric shock and failure.

Owner's Manual 3

Safety Precautions

• Operation

• Otherwise, itwill cause
electric shock or fire.

• Itwill cause electric shock or
fire.

\

• It will cause electric shock or
fire.

ON

• It will cause electric shock or
fire.

• Itwill cause electric shock or
fire.

• Nogrounding maycause
electric shock.

• Otherwise it will cause fire
and electric shock accident.

4 Room Air Conditioner

• It may cause fire and electric
shock.

• Itmay cause electric shock.

Safety Precautions

•The air conditioner must be operated in a
enclosed area to be mosteffective.

• It will cause electric shock or failure of
machine.

0

ILCAUTION

• Installation

• It maycause explosion, fire, and burn.

0

• Water may enter the unit and degrade the
insulation.It may cause anelectric shock.

°They are sharp and may

cause injury.

• It may cause failure of
appliance or deterioration
of performance.

®

Ifthe outer caseis damaged,
it must be repaired or

replaced immediately.
Leaving it damaged could

result in the airconditioner

falling outof the window,

creatinga safety hazard.

Owner's Manual 5

Safety Precautions

• Operation

• It may cause injury.

• Since the fan rotates at high
speed during operation, it may
cause injury.

• It may cause electric shock
and damage.

•This could injure the pet or

damage the plant.

• It will waste power
or could result in an accident.

• It is an air conditioner, not a

precision refrigeration system.

• Operation without filters will
cause failure.

®

, Thechemicalsinbatteriescouldcauseburnsor

otherhealthhazards.

6 Room Air Conditioner

• The appearance of the air
conditioner may deteriorate,
change color, or develop

surface flaws.

• The chemicals in batteriescouldcause burns or
otherhealth hazards

• It is not sanitary and could
cause illness or personal
injury hazard.

BeforeOperation

1. Plug in the power cord properly.

2. Use a dedicated circuit. Overloading the line could create a fire hazard.

3. Do not use an extension cord. See page 11 for more details.

4. Do not start/stop operation by plugging/unplugging the power cord.

5. If the power cord is damaged and requires replacement, have an Authorized
Service technician install an exact replacement part.

1. Being exposed to direct airflow for an extended period of time could be
hazardous to your health. Do not expose occupants, pets, or plants to direct
airflow for extended periods of time.

2. Due to the possibility of oxygen deficiency, ventilate the room when used
together with stoves or other heating devices.

3. Do not use this air conditioner for non-specified special purposes (e.g.
preserving precision devices, food, pets, plants, and art objects). Such usage
could damage the items.

4. The air conditioner is a consumer comfort appliance, not a precision climate

control system.

1. Do not touch the metal parts of the unit when removing the filter. Injuries can
occur when handling sharp metal edges.

2. Do not use water to clean inside the air conditioner. Exposure to water can
destroy the insulation, leading to possible electric shock.

3. When cleaning the unit, first make sure that the power and breaker are turned
off. The fan rotates at a very high speed during operation. There is a

possibility of injury if the unit's power is accidentally triggered on while
cleaning inner parts of the unit.

For repair and maintenance, contact an Authorized Service Center. See the
warranty page for details or ca111-877-755-7932. Have your model number and
serial number available. They should be written on page 2 of this manual.

Owner's Manual 7

Introduction

This symbol alerts you to the risk of electric shock.

This symbol alerts you to hazards that could cause harm to the

air conditioner.

This symbol indicates special notes.

_lb ARNING: This appliance should be installed in accordance with the

National Electric Code.

Upper Guide

Front Grille

Air Filter

Eval:

Control Board

Remote Controller__

8 Room Air Conditioner

Horizontal Air Deflector
(Horizontal Louver)

Vertical Air Deflector
(Vertical Louver)

Air Discharge

Air Intake
(Inlet Grille)

Brace

Compressor

Condenser

-- Base Pan

Power Cord

ElectricalSafety

115V~ 230V ~

Use Wall Receptacle Power Supply

©

Standard 125V, 3-wire grounding
receptacle rated 15A, 125V AC

Use 15 AMP. time

delay fuse or 15 AMP.

circuit breaker.

@

Standard 250V, 3-wire grounding
receptacle rated 15A, 250V AC

©

Standard 250V, 3=wire grounding
receptacle rated 20A, 250V AC

Use 20 AMP. time

delay fuse or 20 AMP.

circuit breaker.

Power cord may include a current
interrupter device. A test and reset button is

provided on the plug case. The device
should be tested on a periodic basis by first

pressing the TEST button and then the
RESET button. If the TEST button does not

trip or if the RESET button will not stay
engaged, discontinue use of the air

conditioner and contact a qualified service
technician.

Use of extension cords

Because of potential safety hazards, we
strongly discourage the useof an extension

cord. However, if you wish to use an
extension cord, use a CSA certified/UL-listed

3-wire (grounding) extension cord, rated 15A,

125V.

All wiring should be made in accordance with
localelectrical codes and regulations.

Aluminum house wiring may pose special
problems. Consult a qualified electrician.

ELECTRICAL SAFETY

IMPORTANT GROUNDING INSTRUCTIONS

Air conditioner has a three-prong grounding plug on

its power supply cord, which must be plugged into
properly grounded three-prong wall receptacle for

your protection against possible shock hazard.

230, 208, and 2301208 VOLT UNITS

These units are equipped with a three=prong
grounding plug on the power supply cord, which
must be plugged into a matching properly grounded

three-prong wall receptacle for your protection
against possible shock hazard. If such an outlet is
not present, one must be installed by a qualified

electrician in accordance with the National Electrical
Code and localcodes and ordinances.

DO NOT USE AN EXTENSION CORD on 230,
208, and 230/208 Volt units.

Owner's Manual 9

ElectricalSafety

WARNING: This appliance must be properly grounded.

The power cord of this appliance is equipped with a three-prong grounding plug.
To minimize the risk of electric shock, use the plug with a standard three-slot

grounding wall power outlet. If the power outlet does not include a grounding slot,
have a qualified electrician replace the outlet before you use the room air
conditioner.

WARNING: Changing the outlet without making the appropriate wiring

&

changes will create an unsafe condition that could result in fire or
electrical shock. Refer all such work to a licensed and qualified
electrician.

Preferred method

Ensure proper ground

exists before use

WARNING: Do not cut or remove the grounding prong from the power

plug.

WARNING: Attaching the adapter ground terminal to the wall

&

receptacle cover screw does not ground the appliance unless the
cover screw is metal and not insulated, and the wall receptacle is

grounded through the house wiring.

WARNING: If you have any doubt whether the air conditioner is

properly grounded, have the wall receptacle and circuit checked by a
qualified electrician.

10 Room Air Conditioner

ElectricalSafety

We strongly discourage the use of an adapter due to potential safety hazards.

For temporary connections, use only a UL-listed adapter, available from most
local hardware stores. Ensure that the large slot in the adapter is aligned with

the large slot in the receptacle for a proper polarity connection.
To disconnect the power cord from the adapter, use one hand on each to avoid

damaging the ground terminal. Avoid frequently unplugging the power cord as
this can lead to eventual ground terminal damage.

Temporary method

Adapter Plug_

Metal Screw

Receptacle Cover

WARNING: Never use the appliance with a broken adapter.

115VOLT UNiT

We strongly discourage the use of an extension cord due to potential safety
hazards.For temporary situations,use only CSA certified and UL listed 3-wire

grounded extension cords,rated 15 A,125V.

All wiring should be made in accordance with local ebctrical codes and regulations.

Aluminum house wiring may pose special problems. Consult a qualified electrician.

230,208, and 230/208 VOLT UNITS
These units are equipped with a three-prong grounding plug on the power supply cord, which

must be plugged into a matching properly grounded three-prong wall receptacle for your protection
against possible shock hazard, if such an outlet isnot present, one must be installed bya qualified

electrician in accordance with the National Electrical Code and localcodes and ordinances.

DO NOT USE AN EXTENSION CORD on 230,208, and 230/208 Volt units.

Owner's Manual 11

Installation

To preventvibration and noise, makesure the unit

is installedsecurely and firmly I _g

Installthe unitwhere the sunlight does notshine

directly onthe unit. Cooled air i__t_ _ Heat

The outside of the cabinet mustextend outwardfor _ _=_

atleast 12" and there shouldbe no obstacles, such _ __j_

as a fence or wall, within 20" from the back of the ,,

cabinetbecause itwill prevent heatradiation ofthe _o L _h Abbotlj2

condenser, o/ 1. Over 20"Restrictionof outside airwill greatly reduce the

cooling efficiency of the air conditioner.

_& AUTION: All side louvers of the cabinet must remain exposed to the outside of thestructure.

Install the unitalittle slanted so the back isslightly lower thanthe front (about 1/2").
This willforce condensed water to flow to theoutside.

Installthe unitwith the bottomabout 30"~60" above the floor level.

:All supportingparts should be securedto firm wood,masonry, or metal.

• This unit is designed for
installation instandard double

hungwindows with actual
openingwidths from 23"

to 36".

• The top and bottomwindow
sash must opensufficiently

to allow aclear vertical opening of
15" from the bottom of the upper

sash tothe window stool.

_23" to 36"_

I

_[ _ radiation

Y

15"min.

Innersill

•.-" q si,

i Exterior

/

°__ '" _Offset

_Sash

_Window

Fence

\

\

\

/

12 Room Air Conditioner

Interior wall "-l-'" °

/

20 1/12"min. -/

(Withoutframecurtain)/

NO. NAME OF PARTS Q'TY

1 FRAME CURTAIN 2
2 SILL SUPPORT 2
3 BOLT 2

4 NUT 2

5 SCREW (TYPE A) 13
6 SCREW (TYPE B) 3
7 SCREW (TYPE C) 5
8 FOAM-STRIP 1
9 DRAIN PIPE 1

10 FRAME GUIDE 2
11 WINDOW LOCKING BRACKET 1

12 FOAM-PE 1

SCREWDRIVER(Philips and Flatead), RULER, KNIFE, HAMMER, PENCIL, LEVEL ]

PREPARATION OF CHASSIS

Remove the screws which fasten the
cabinet at both sides and at the back.

Slide the unit from the cabinet by gripping

the base pan handle and pulling forward

while bracing the cabinet.
Cut the window sash seal to the proper

length. Peel off the backing and attach

the Foam-PE @ to the underside of

the window sash.

Insert the Frame Guides @ into the
bottom of the cabinet.

Insert the Frame Curtain O into the Upper

Guide and Frame Guides @.

_ Fasten the curtains to the unit with 4 Type

A screws ®.

Installation

Screws

Owner's Manual 13

Installation

Open the window. Mark a line on center of the
window stool.

Carefully place the cabinet onthe window stool and
align the center mark on the bottom front with the

center line marked inthe window stool.

Upper GU_w stool

Pull the bottom window sash down behind the Upper
Guide until it meets.

Window Sash\ Upper guide

112'¢J'_"43: Do not pull the window sash down tightly that __'_ "

the movement of Frame Curtain Q is restricted. .._,_

Foam-pe @_
Cabinet J /_

Frame Curtain Q

Foam-pe

Loosely assemble the Sill Support ® using the parts

INDOOR

Front Angle

'_ Select the position that will place the Sill Support ®

near the outer most point on sill

II//'€£1t'_i : Be careful when you install the cabinet

(Frame Guides @ are broken easily).

Attach the Sill Support @ to the cabinet track hole in
relation to the selected position using 2 Type A
screws in each support

14 Room Air Conditioner

Bolt

Frame Guide @

IL \

INDO_

Sill SuppertQ

-Nut@

Screw(Type A) @

_ Cabinet

_/////////4 OUTDOOR

Installation

The cabinet should be installed with a very slight tilt

(about 1/2") downward toward the outside

Adjust the bolt and the nut of Sill Support _'_for
balancing the cabinet.

Attach the cabinet to the window stool by driving
the screws t_ (Type B: Length 16ram (5/8 inch)

and below.) through the front angle into window
stool.

Pull each Frame Curtain (_) fully to each window
sash track, and repeat step 2.

Attach each Frame Curtain C:_thewindow sash using
screws C>(TypeC).

CAUTION: Do not drill a hole in the bottom

a,

pan. The unit is designed to operate with
approximately 1/2" of water in bottom pan.

There is no need to add water if the pan is
dry.

Screw(Type B) Q

Sill Support (_

iiiiiiiiiii! :' ifi_ iiiiiHiiiiiiiiiiiiii!iJiiiiiiiiii__ sh track

_ Front Angle

Screw(Type B) (_)

Sill Support (_)

S:iiii

J

Slidethe unit into the cabinet.

_lb CAUTION: For security purpose, reinstall

screws (Type A) at cabinet's sides.

}_ Cut the Foam-Strip ¢_to the proper length and insert

between the upper window sash andthe lower
window sash.

Screw(Type A)

Pow_

Screw

(Type A)

Owner's Manual 15