LG TWC226NAAB6, W186AC, W126BC, W186AF Owner’s Manual

website http://www.lgservice.com

LG

Room Air Conditioner

LG

OWNER'S MANUAL

IMPORTANT

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

PRECAUTIONS

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.

P/No. 3828A20480C

Window-Type Air Conditioner Owner’s Manual

TABLE OF CONTENTS

Safety Precautions..........................	3
Before Opeation ..............................	7
Introduction ....................................	8
Installation ......................................	9
Operating Instructions .................	14
Maintenance and Service ............	21

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.

2 Room Air Conditioner

Safety Precautions

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.

WARNING	This symbol indicates the possibility of death or serious injury.
CAUTION	This symbol indicates the possibility of injury or damage to properties only.

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

			Be sure not to do.
			Be sure to follow the instruction.
			WARNING
Don’t use a power cord, a			Always plug into a grounded	Do not modify or extend the
plug or a loose socket which			outlet.	power cord length.
is damaged.
• Otherwise, it may cause a			• Otherwise, it may cause a	• It will cause electric shock or
fire or electrical shock.			fire or electrical shock.	fire due to heat generation.

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.

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Gasolin

Owner’s Manual 3

Safety Precautions

■ Operation

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.

Do not share the outlet with other appliances.

•It will cause electric shock or fire due to heat generation.

Do not allow water to run into electric parts.

•It will cause failure of machine or electric shock.

Take the power plug out if necessary, holding the head of the plug and do not touch it with wet hands.

•Otherwise, it may cause a fire or electrical 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

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

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.

• Otherwise it may cause fire		• Otherwise, it may electrical
and electric	accident.	shock and failure.

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

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

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

•Prevent accidental startup and the possibility of injury.

4 Room Air Conditioner

		Safety Precautions
Do not operate or stop the	Do not damage or use an	Do not operate with wet
unit by inserting or pulling	unspecified power cord.	hands or in damp
out the power plug.		environment.
• It will cause electric shock or	• It will cause electric shock or	• It will cause electric shock.
	fire.

	Hold the plug by the head		When gas leaks, open the			Never touch the metal parts
	when taking it out.		window for ventilation			of the unit when removing
			before operating the unit.			the filter.
• It may cause electric shock			• Otherwise, it may cause			• They are sharp and may
	and damage.		explosion, and a fire.			cause injury.

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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.

Owner’s Manual 5

Safety Precautions

■ Operation

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

• It may cause injury.

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

Do not block the inlet or outlet of air flow.

• It may cause product failure.

Always insert the filter securely.

Clean it every two weeks.

• It may cause an injury	• Operation without filters will
through dropping of the unit	cause failure.
or falling down.

Avoid excessive cooling and perform ventilation sometimes.

• Otherwise, it may do harm to your health.

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 drink water drained from air conditioner.

•It contains containments and will make you sick.

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

•Otherwise, it may cause personal injury.

6 Room Air Conditioner

Before to Operation

Before Operation

PreparingforOperation

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.

Usage

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.

CleaningandMaintenance

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.

Service

For repair and maintenance, contact your authorized service dealer.

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Owner’s Manual 7

Introduction

Introduction

SymbolsUsedinthisManual

This symbol alerts you to the risk of electric shock.

This symbol alerts you to hazards that could cause harm to the air conditioner.

NOTICE This symbol indicates special notes.

Features

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

Vertical Air Deflector

(Horizontal Louver)

Brace

Horizontal Air Deflector

(Vertical Louver)

	Air Discharge
Cabinet	Air Intake(Inlet Grille)
Front Grille	Air Filter

		Condenser
	Evaporator	Base Pan
		Compressor
	Control Board
		Power Cord

	Vertical Air Deflector	Brace
	(Horizontal Louver)
	Horizontal Air Deflector
	(Vertical Louver)

		Air Discharge
Cabinet	Air Intake(Inlet Grille)
Front Grille	Air Filter	Remote Controller

Condenser

Base Pan

Compressor

Power Cord

Control Board

Evaporator

8 Room Air Conditioner

Installation

Installation

SelecttheBestLocation

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)

NOTICE

The external grille must be exposed outside for air discharge.

FOAM

COOLED

AIR

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AWNING FENCE

HEAT

RADIATION

10~15mm Over 50cm

1/4 Bubble

Level

RemovetheAirConditionerFromtheCase

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)

White styrofoam block

Shipping screws

AttachingtheDrainPan(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)

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Owner’s Manual 9

Installation

InstallationoftheHousing

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.

UNIT MAY BE SUPPORTED BY A NOTICE SOLID FRAME FROM BELOW

OR BY A HANGER FROM A SOLID OVERHEAD SUPPORT.

FLASH OR SEAL AROUND EXTERNAL

WALL FRAME OR ARCHITRAVE

		STURDY TIMBER			DRAIN CHUTE
					EXTERNAL SUPPORT
		FRAME ALL ROUND
					FRAME AT BALANCE
		UNIT
					POINT OF RAC
					ALTERNATIVELY, BRACKETS
		TIMBER FRAMED			AS ILLUSTRATED BELOW
		WALL OR PARTITION			MAY BE USED.

Preferred method of installation into

a timber framed wall, partition or window.

InstallationsoftheunitintotheHousing

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

ENSURE LOUVRES

ARE ENTIRELY

OUTSIDE THE WALL.

DRAIN CHUTE

STURDY TIMBER

FRAME

STEADYING BRACKET TIMBER FRAMED (ONE PER SIDE)

WALL OR PARTITION

SOLID TIMBER SUPPORT

Alternative method of installation if external support cannot be provided.

Installationsoftheunitintothewall

		45° BRICK CUT AWAY		45° BRICK CUT AWAY
		TO CLEAR LOUVRES		TO CLEAR LOUVRES
AIR IN			FRONT
		BRICK		BRICK
	AIR IN	WALL	100mm	WALL
			TOP
			VIEW
		AIR IN		AIR IN
AIR IN				100mm
		LOUVRE
AIR OUT
100mm minimum			AIR OUT
OPTION A			OPTION B

10 Room Air Conditioner

Installation

InstalltheAirConditionerintheCase

1. Slide the air conditioner into the case.	4. Attach the front grille to the case by inserting the
Reinstall the 2 screws removed earlier on each	tabs on the grille into the slots on the front of the
side of the case.	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.
Screw
Screw
Power Cord

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.

The Foam

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

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

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Owner’s Manual 11

Installation

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

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

b

(a)

(b)

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.

12 Room Air Conditioner

Installation

CircuitBreakerInstallationandPartsforInstallation

•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.

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Owner’s Manual 13

Operating Instructions

Operating Instructions

Controls

The controls will look like one of the following.

Thermostat

Operation

	5			OFF
4	6		MED	HIGH
			FAN	COOL
3			7
2
			LOW	MED
1		9	FAN	COOL
				LOW COOL

	Thermostat will automatically control the	OFF, No	( 0 ) : Turns the air conditioner off.
	temperature of the room.	MED FAN	(	) : Permits the medium fan speed
	Select higher number for lower room
				operation without cooling.
	temperature.
		LOW FAN	(	) : Permits the low fan speed
	The temperature is selected by turning the
	knob to the desired position.			operation without cooling.
	The 5 or 6 position is a normal setting for	HIGH COOL (		) : Permits cooling with the high fan
	average conditions.			speed operation.
		MED COOL (		) : Permits cooling with the
				medium fan speed operation.
		LOW COOL (		) : Permits cooling with the low fan
				speed operation.

14 Room Air Conditioner