LG TWC212NBMM4, TWH182NAAB4, TWC182NBAB4, TWC182NAAB4, TWC212NBAB4 Owner’s Manual

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P/No. 3828A20840B

OWNER'S MANUAL

Room Air Conditioner

website http://www.lgservice.com

Please read the operating instructions and safety precautions carefully and thoroughly before installing and operating your room air conditioner.

Pay close attention to precautions in order to prevent potential hazards and damage from misuse or improper installation. LG is not responsible for any damages caused by misuse of the product.

IMPORTANT

PRECAUTIONS

2 Room Air Conditioner

FOR YOUR RECORDS

Write the model and serial numbers here:

Model # Serial #

You can find them on a label on the side of each unit.

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.

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 the authorized service technician for repair

or maintenance of this unit.

• Contact the installer for installation of this unit.

• The air conditioner is not intended for use by young children or invalids without supervision.

• Young children should be supervised to ensure that they do not play with the air conditioner.

• When the power cord is to be replaced, replacement work shall be performed by authorized personnel only using only genuine replacement parts.

• Installation work must be performed in accordance with the National Electric Code by qualified and authorized personnel only.

Safety Precautions..........................3

Before Opeation ..............................7

Introduction ....................................8

Installation ......................................9

Operating Instructions .................14

Maintenance and Service ............21

Window-Type Air Conditioner Owner’s Manual

TABLE OF CONTENTS

Owner’s Manual 3

ENGLISH

Safety Precautions

To prevent injury to the user or other people and property damage, the following instructions must be followed. ■ Incorrect operation due to ignoring instruction will cause harm or damage. The seriousness

is classified by the following indications.

■ Meanings of symbols used in this manual are as shown below.

This symbol indicates the possibility of death or serious injury.

This symbol indicates the possibility of injury or damage to properties only.

WARNING

■ Installation

Be sure not to do.

Be sure to follow the instruction.

Don’t use a power cord, a plug or a loose socket which is damaged.

• Otherwise, it may cause a fire or electrical shock.

Always ground the product.

• There is risk of fire or electric shock.

Do not modify or extend the power cable.

• There is risk of fire or electric shock.

Do not disassemble or modify products.

• It may cause failure and electric shock.

Be caution when unpacking and installing.

• Sharp edges may cause injury.

Do not use the power cord near flammable gas or combustibles such as gasoline, benzene, thinner, etc.

• It may cause explosion or fire.

Gasolin

WARNING

CAUTION

4 Room Air Conditioner

Safety Precautions

■ Operation

Do not place the power cord near a heater.

• It may cause fire and electric shock.

Do not allow water to run into electric parts.

• It will cause failure of machine or electric shock.

Use a soft cloth to clean. Do not use wax, thinner, or a strong detergent.

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

Wax

Thinner

Ventilate the room well when using this appliance together with a stove, etc.

• An oxygen shortage may occur.

Turn off the power and breaker firstly when cleansing the unit.

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

Turn off the main power switch when not using it for a long time.

• Prevent accidental startup and the possibility of injury.

If strange sounds, or small or smoke comes from product. Turn the breaker off or disconnect the power supply cable.

• There is risk of electric

shock or fire.

Do not open the suction inlet grill of the product during operation.

• Otherwise, it may electrical shock and failure.

If water enters the product, turn off the the power switch of the main body of appliance. Contact service center after taking the power-plug out from the socket.

Do not place heavy object on the power cord and take care so that the cord should not be pressed.

• There is danger of fire or electric shock.

Always install a dedicated circuit and breaker.

• Improper wiring or installation may cause fire or electric shock

Do not touch(operate) the product with wet hands.

• There is risk of fire or electrical shock.

Owner’s Manual 5

ENGLISH

Safety Precautions

CAUTION

■ Installation

Do not plug or unplug the power supply plug during operation.

• There is risk of fire or electric shock.

Do not damage or use an unspecified power cord.

• It will cause electric shock or fire.

Do not operate with wet hands or in damp environment.

• It will cause electric shock.

Take care to ensure that power cable could not be pulled out or damaged during operation.

• There is risk of fire or electric shock.

When gas leaks, open the window for ventilation before operating the unit.

• Otherwise, it may cause explosion, and a fire.

Never touch the metal parts of the unit when removing the filter.

• They are sharp and may cause injury.

Install the product so that the noise or hot wind from the outdoor unit may not cause any damage to the neighbors.

• Otherwise, it may cause dispute with the neighbors.

Keep level parallel in installing the product.

• Otherwise, it may cause vibration or water leakage.

6 Room Air Conditioner

Safety Precautions

■ Operation

Be cautious not to touch the sharp edges when installing.

• It may cause injury.

Avoid excessive cooling and perform ventilation sometimes.

• Otherwise, it may do harm to your health.

Do not insert the hands or bars through the air inlet or outlet during operation.

• Otherwise, it may cause personal injury.

Do not put a pet or house plant where it will be exposed to direct air flow.

• It may cause injury.

Do not block the inlet or outlet of air flow.

• It may cause product failure.

Use a soft cloth to clean. Do not use wax, thinner, or a strong detergent.

• The appearance of the air

conditioner may deteriorate, change color, or develop surface flaws.

Do not step on the indoor/outdoor unit and do not put anything on it.

• It may cause an injury through dropping of the unit or falling down.

Always insert the filter securely. Clean it every two weeks.

• Operation without filters will cause failure.

Do not drink water drained from air conditioner.

• It contains containments and will make you sick.

Owner’s Manual 7

ENGLISH

Before to Operation

Before Operation

1. Contact an installation specialist for installation.

2. Plug in the power plug properly.

3. Use a dedicated circuit.

4. Do not use an extension cord.

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

6. If the cord/plug is damaged, replace it with only an authorized 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.

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 your authorized service dealer.

Preparing for Operation

Usage

Cleaning and Maintenance

Service

8 Room Air Conditioner

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.

NOTICE

This appliance should be installed in accordance with the National Electric Code.

Vertical Air Deflector (Horizontal Louver)

Horizontal Air Deflector (Vertical Louver)

Air Discharge

Evaporator

Control Board

Evaporator

Control Board

Condenser

Base Pan

Brace

Cabinet

Front Grille Air Filter

Air Intake(Inlet Grille)

Vertical Air Deflector (Horizontal Louver)

Horizontal Air Deflector (Vertical Louver)

Air Discharge

Cabinet

Front Grille Air Filter

Remote Controller

Air Intake(Inlet Grille)

Compressor Power Cord

Condenser

Base Pan Compressor

Power Cord

Introduction

Symbols Used in this Manual

Features

Owner’s Manual 9

ENGLISH

Installation

Select the Best Location

1. Measure the space for installation to assure a good fit. The air conditioner must be installed firmly into place to prevent vibration and noise.

2. Avoid exposure to direct sunlight.

3. Remove all obstacles from the rear of the unit. There must be at least 50cm (20in.) of cleared space around the rear of the unit. Obstacles restricting the airflow may reduce the cooling efficiency of the unit.

4. The unit should be installed with a slight tilt towards the outside (approx. 3°) to allow condensed water to drain. (About 10~15mm or 1/4 bubble with level)

The external grille must be exposed outside for air discharge.

NOTICE

Remove the Air Conditioner From the Case

1. Remove 2 shipping screws from the back of the case.

2. Remove the 2 screws on each side of the case. Keep these for later use.

3. Slide out the air conditioner from the case by pulling the base-pan handle while bracing the case.

4. Remove the white Styrofoam shipping block from the compressor. (Applicable for some models)

Attaching the Drain Pan (Optional)

The drain pan is used to collect condensed water. The base-pan may overflow due to high humidity. The base-pan may also collect excess water when in reverse mode (in Reverse Cycle models only). To drain the excess water, remove the drain cap from the back of the unit and secure the drainpipe as follows:

1. Remove the drain pan located in the air discharge or on the barrier.

2. Remove the rubber cap from the hole on the base-pan. (Not applicable to all models)

3. Install the drain pan to the left corner of the cabinet with 2-4 screws.

4. Connect the drain hose to the hole located on the bottom of the drain pan.

You can purchase the drain hose or tubing locally to satisfy your particular needs. (Drain hose not included)

~15mm

Over 50cm

HEAT

RADIATION

FENCE

AWNING

FOAM

COOLED

AIR

70-150cm

Level

1/4 Bubble

Shipping screws

White styrofoam block

10 Room Air Conditioner

Step 1

Remove the air conditioner from it’s packaging and slide the air conditioner out of it’s housing.

Step 2

Prepare the hole in the wall so that the bottom of the housing is well supported, the top has minimum clearace and the air inlet louveres have clearance as shown. Holes from the outside through to the cavity should be sealed. The housing should slope down towards the rear by about 5mm to allow water formed during operation to drain.

Step 3

Install the housing into the wall and secure. Ensure the foam seals are not damaged. Flash, seal or fill gaps around the inside and outside to provide satisfactory appearance and protection against the weather, insects and rodents.

Installation

Installation of the Housing

Installations of the unit into the Housing

Installations of the unit into the wall

1. Slide the unit into the housing until it is firmly against the rear of the housing. Care is required to ensure the foam sealing strips on the housing remain in position.

2. Connect the air conditioner to the power and coil excess cord length beneath the air conditioner base or control box.

3. Engage the Chassis Lock into the bottom housing rail and secure to the base with the screw provided.

4. Remove the front panel from i’s carton and plastic bag and fit as per the Operating Instruction.

5. Switch unit on. Check for operation of the unit and check for vibration in the installation.

6. Fit the drain chute to the housing and run a drain line to a suitable location if required.

FLASH OR SEAL AROUND EXTERNAL WALL FRAME OR ARCHITRAVE

STURDY TIMBER FRAME ALL ROUND UNIT

DRAIN CHUTE

EXTERNAL SUPPORT FRAME AT BALANCE POINT OF RAC

Preferred method of installation into

a timber framed wall, partition or window.

ALTERNATIVELY, BRACKETS AS ILLUSTRATED BELOW MAY BE USED.

TIMBER FRAMED WALL OR PARTITION

NOTICE

UNIT MAY BE SUPPORTED BY A SOLID FRAME FROM BELOW OR BY A HANGER FROM A SOLID OVERHEAD SUPPORT.

Alternative method of installation if external

support cannot be provided.

FLASH OR SEAL AROUND EXTERNAL WALL FRAME OR ARCHITRAVE

ENSURE LOUVRES ARE ENTIRELY OUTSIDE THE WALL.

DRAIN CHUTE

STURDY TIMBER FRAME

STEADYING BRACKET (ONE PER SIDE)

SOLID TIMBER SUPPORT

TIMBER FRAMED WALL OR PARTITION

100mm minimum

AIR IN

AIR OUT

OPTION A

100mm

LOUVRE

FRONT

45° BRICK CUT AWAY TO CLEAR LOUVRES

BRICK

WALL

BRICK WALL

AIR IN AIR IN

AIR OUT

TOP

VIEW

OPTION B

Owner’s Manual 11

ENGLISH

Installation

Install the Air Conditioner in the Case

1. Slide the air conditioner into the case. Reinstall the 2 screws removed earlier on each side of the case.

The power cord must be connected to an independent circuit. The green wire must be grounded.

2. Stuff the foam between the top of the unit and the wall to prevent air and insects from getting into the room.

3. Before installing the front grille, pull out the vent control lever located above the unit control knobs, as shown. (for some models)

4. Attach the front grille to the case by inserting the tabs on the grille into the slots on the front of the case. Push the grille in until it snaps into place. When you detach the front grille from the case, push the grille to your right side and pull it toward you.

5. Lift the inlet grill and secure the front grille with a screw(L:10mm). Lower the inlet grille into place. (for some models)

Power Cord

Screw

The Foam

12 Room Air Conditioner

Installation

The grille is designed to clean the filter both upward and downward.

A. Before attaching the front grille to the cabinet, if you want to pull out the filter

upward;

1. Open the inlet grille slightly (a).

2. Turn inside out the front grille (a).

3. Disassemble the inlet grille from the front grille with separating the hinged part by inserting a straight type screw-driver tip (b).

4. Then, rotate the inlet grille 180 degrees and insert the hooks into bottom holes of the front grille.

5. Insert the filter and attach the front grille to the cabinet.

B. If you want to pull out the filter downward;

The grille is already designed that way.

How to Use the Reversible Inlet Grille(For Some Models)

(b)

(a) (c)

Owner’s Manual 13

ENGLISH

Installation

Circuit Breaker Installation and Parts for Installation

• Read thoroughly and follow all directions provided.

• A circuit breaker must be installed between the power source and the unit if the plug is not used

(see illustration below).

Main Power source Circuit Breaker

Use a circuit breaker or time delay fuse.

Power Cord

L: BL(WH) N: BR(BK) G: GN/YL(GN)

Use 20A circuit breaker for some models(21k~26k Btu/h).

NOTICE

14 Room Air Conditioner

Operating Instructions

Controls

The controls will look like one of the following.

OFF

MED

FAN

HIGH

COOL

LOW

FAN

LOW COOL

MED

COOL

Thermostat Operation

OFF, No MED FAN

LOW FAN

HIGH COOL

MED COOL

LOW COOL

Thermostat will automatically control the temperature of the room. Select higher number for lower room temperature. The temperature is selected by turning the knob to the desired position. The 5 or 6 position is a normal setting for average conditions.

: Turns the air conditioner off. : Permits the medium fan speed

operation without cooling.

: Permits the low fan speed

operation without cooling.

: Permits cooling with the high fan

speed operation.

: Permits cooling with the

medium fan speed operation.

: Permits cooling with the low fan

speed operation.

( )

Owner’s Manual 15

ENGLISH

Operating Instructions

Thermostat Operation

■ THERMOSTAT

Turn the thermostat control to the desired setting. The control position is a normal setting for average conditions. You can change this setting, if necessary, in accordance with your temperature preference. The thermostat automatically controls cooling or heating, but the fan runs continuously whenever the air conditioner is in operation. If the room is too warm, turn the thermostat control clockwise. If the room is too cool, turn the thermostat control counterclockwise.

■ OPERATION

OFF ( ) : Turns the air conditioner off. LOW FAN ( ) : Permits the low fan speed

operation without cooling (heating).

LOW COOL ( ) : Permits cooling with the low

fan speed operation.

HIGH COOL ( ) : Permits cooling with the high

fan speed operation.

LOW HEAT ( ) : Permits heating with the low

fan speed operation.

HIGH HEAT ( ) : Permits heating with the high

fan speed operation.

Controls

The controls will look like one of the following.

16 Room Air Conditioner

Operating Instructions

• When the air conditioner has been performed its cooling operation and is turned off or set to the fan position, wait at least 3 minutes before resetting to the cooling operation again.

■ COOLING DESCRIPTIONS

For Normal Cooling - Select High Cool or Med Cool with the Operation knob at the midpoint of

Thermostat knob.

For Maximum Cooling - Select High Cool with the Operation knob at the highest number available on

your Thermostat knob.

For Quieter & Nighttime Cooling - Select Low Cool with the Operation knob at the midpoint of

Thermostat knob.

■ AUTO SWING (available in some models)

ON ( , SI ) : Air swing is operated while OPERATION knob is set to the COOL position. OFF( , NO ) : Stops the operation of air swing.

Auto Swing

On Off

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