Sears LT103CNR, LT143CNR, LT123CNR User Manual

2 Room Air Conditioner

Window-Type Air Conditioner Owner’s Manual

TABLE OF CONTENTS

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,youmaynotneedtocallfor 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 Operation .............................7

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

Electrical Safety ..............................9

Installation ....................................11

Operating Instructions .................18

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

Safety Precautions

WARNING

Gasolin

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

CAUTION

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

Installation

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

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

This symbol indicates the possibility of death or serious injury.

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

Be sure not to do.

Be sure to follow the instruction.

Always plug into a grounded outlet.

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

Do not modify or extend the power cord length.

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

ENGLISH

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.

Owner’s Manual 3

Wax

Thinner

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.

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.

Do not place the power cord near a heater.

• It may cause fire and electric shock.

Unplug the unit if strange sounds, odors, or smoke come from it.

• Otherwise it may cause fire and electric shock accident.

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

• An oxygen shortage may occur.

Do not allow water to run into electric parts.

• It will cause failure of machine or electric shock.

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

• Otherwise, it may electrical shock and failure.

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

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

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.

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.

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

• Prevent accidental startup and the possibility of injury.

4 Room Air Conditioner

Owner’s Manual 5

ENGLISH

Safety Precautions

CAUTION

Do not operate or stop the unit by inserting or pulling out the power plug.

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

Hold the plug by the head when taking it out.

• It may cause electric shock and damage.

Do not damage or use an unspecified power cord.

• It will cause electric shock or fire.

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

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

Do not operate with wet hands or in damp environment.

• It will cause electric shock.

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

• They are sharp and may cause injury.

For inner cleaning, contact an Authorized Service Center or a dealer. Do not use harsh detergent that causes corrosion or damage on the unit.

Harsh detergent may also cause failure of product, fire, or electronic shock.

Installation

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.

Before Operation

Owner’s Manual 7

ENGLISH

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.

Introduction

Symbols Used in this Manual

Features

THE SLEEVE AND THE REAR GRILLE

(optionally supplied with your unit)

SLEEVE ASSEMBLY (Including Aluminum Rear grille)

AIR FILTER

INLET GRILLE

VERTICAL AIR DEFLECTOR

(Horizontal Louver)

(Air Intake)

HORIZONTAL AIR DEFLECTOR

(Vertical Louver)

REAR GRILLE (Aluminum Rear grille)

THE UNIT

AIR DISCHARGE

CABINET

FRONT GRILLE

VENT CONTROL

Electrical Safety

Owner’s Manual 9

ENGLISH

Electrical Safety

Electrical Data

Never push the test button during operation Otherwise this plug can damaged.

This device contains chemical, including lead, known to the State of California to cause cancer, and birth defects or other reproductive harm. Wash hands after handling. Do not remove, modify or immerse this plug. If this device trips, the cause it to be corrected before further use.

The conductors inside this cord are surrounded by shields, which monitor leakage current. These shields are not grounded.

Periodically examine the cord for any damage. Do not use this product in the event the shields become exposed. Avoid shock hazard, this unit can not be user serviced opening the tamper resistant. Sealed portion of the unit voids all warranties and performance claims. This unit not intended for use as an on-off switch.

The shape may be different according to its model.

NOTICE

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

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

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

NOTICE

115V~ 230V~

Use Wall Receptacle Power Supply

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

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

Use 15 AMP. time delay fuse or 15 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.

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

Use 20 AMP. time delay fuse or 20 AMP. circuit breaker.

10 Room Air Conditioner

Electrical Safety

IMPORTANT (PLEASE READ CAREFULLY)

FOR THE USER'S PERSONAL SAFETY,THIS APPLIANCE MUST BE PROPERLY GROUNDED

The power cord of this appliance is equipped with a three-prong (grounding) plug. Use this with a standard three-slot (grounding) wall power outlet to minimize the hazard of electric shock. The customer should have the wall receptacle and circuit checked by a qualified electrician to make sure the receptacle is properly grounded.

DO NOT CUT OR REMOVE THE THIRD (GROUND) PRONG FROM THE POWER PLUG.

A. SITUATIONS WHEN THE APPLIANCE WILL BE

DISCONNECTED OCCASIONALLY:

Because of potential safety hazards, we strongly discourage the use of an adapter plug. However, if you wish to use an adapter, a TEMPORARY CONNECTION may be made. Use UL-listed adapter, available from most local hardware stores. The large slot in the adapter must be aligned with the large slot in the receptacle to assure a proper polarity connection.

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. The customer should have the circuit checked by a qualified electrician to make sure the receptacle is properly grounded.

Disconnect the power cord from the adapter, using one hand on each. Otherwise, the adapter ground terminal might break. DO NOT USE the appliance with a broken adapter plug.

B. SITUATIONS WHEN THE APPLIANCE WILL BE

DISCONNECTED OFTEN.

Do not use an adapter plug in these situations. Unplugging the power cord frequently can lead to an eventual breakage of the ground terminal.The wall power outlet should be replaced by a three-slot (grounding) outlet instead.

USE OF EXTENSION CORDS

Because of potential safety hazards, we strongly discourage the use of an extension cord. However, if youwishtouseanextensioncord,useaCSA certified/UL-listed 3-wire (grounding) extension cord, rated at 15A, 250V.

Electrical Safety

Owner’s Manual 11

ENGLISH

Installation

Remove packing materials from the wall sleeve and tape from the air conditioner.

INSTALLATION REQUIREMENTS

If you use an existing wall sleeve, you should

measure its dimensions. Install the new air conditioner according to these installation instructions to achieve the best performance. All wall sleeves used to mount the new air conditioner must be in good structural condition and have a rear grille to securely attach the new air conditioner. (FIG. 1)

With the LGE sleeve(optionally supplied with your unit), you can maintain the best performance of

the new air conditioner. (FIG. 2)

ELECTRICAL SERVICE

Check your available electrical service. The power supply available must be the same as that shown on the unit nameplate (found on left side of cabinet).

All models are equipped with a 3-prong service plug to provide proper service and safe positive grounding. Do not change plug in any way. Do not use an adapter plug. If your present wall outlet does not match your plug, call a qualified electrician to make the necessary corrections. SAVE CARTON for storage and this OWNER'S MANUAL for future reference. The carton is the best way to store unit during winter or when not in use.

INSTALLATION HARDWARE

14-13/32" (366 mm)

24"(610 mm)

18-15/32"(468 mm)

20-3/32"

(511 mm)

To avoid risk of personal injury, property damage, or product damage due to the weight of this device and sharp edges that may be exposed:

• Air conditioners covered in this manual pose an excessive weight hazard. Two or more people are needed to move and install the unit. To prevent injury or strain, use proper lifting and carrying techniques when moving unit.

• Carefully inspect location where air conditioner will be installed. Be sure it will support the weight of theunitoveranextendedperiodoftime.

• Handle air conditioner with care. Wear protective gloves whenever lifting or carrying the unit. AVOID the sharp metal fins of front and rear coils.

• Make sure air conditioner does not fall during installation.

REQUIRED TOOLS:

• Tight Fitting gloves

• Standard screwdriver

• Phillips screwdriver

• Pliers

• Sharp knife

• 3/8-inch open end

wrench or adjustable wrench

• 1/4-inch hex socket and ratchet

• Tape measure

• Electric drill

• 1/4-inch drill bit

FIG. 1

Air Conditioner

ITEM NAME OF PARTS Q'TY

1 PLASTIC GRILLE 1 2 VERTICAL INSULATION STRIP 1 3 AROUND INSULATION STRIPS 2 4 HORIZONTAL INSULATION STRIP 1 5 SUPPORT BLOCK 2 6 BAFFLE 1 7TRIMFRAME 2 8SHIM 2 9

PLASTIC NUTS AND WASHER SCREWS

FIG. 2

LGE Wall Sleeve

25-7/8"

(656 mm)

Aluminum metal grille

16-23/32" (425 mm)

15-17/32" (394 mm)

2 4

2 Size options

12 Room Air Conditioner

Installation

INSTALLATION

• Pick a location which will allow the conditioned air to blow into the area you want. Good installation with special attention to the proper position of the unit will lessen the chance that service will be needed.

ITEMS IN INSTALLATION HARDWARE

You may not need all parts in the kit. Discard unused parts

HOW TO INSTALL

Identify the existing wall sleeve before installing the unit from the listed below.

All wall sleeves used to mount the new Air Conditioner must be in sound structural condition and have a rear grille that securely attaches to sleeve, or rear flange that serves as a stop for the Air Conditioner.

Remove old air conditioner from existing wall sleeve.

Clean the interior of an existing sleeve. (Do not disturb seals.)

Wall sleeve must be securely fastened in wall before installing the air conditioner. Use the nails or screws through sleeve into wall, if needed. Repaint sleeve if needed.

Prepare the wall sleeve for installation of the unit. If you plan to use your existing wall sleeve, and it is not LGE, use procedure B or C below.

Install new unit into wall sleeve.

When installation is completed, replacement unit MUST have a rearward slope as shown. To achieve 1/4" slope, remove the backing from the 11-13/16" shim strips and attach them as shown below in Fig. 3. Place the higher portion of shim to the front of the rib on base of wall sleeve.

NOTICE

1/4"

Wall Sleeve

FRONT

UNIT

SHIM PLACEMENT UNIT INSTALLATION

1" high

/4" High

Shim

6" 6"

FIG. 3

We strongly recommend the removal of the old wall sleeve and the installation of a new LGE Wall Sleeve.

If you decide to keep the existing wall sleeve, you have to redirect the louvers at the back of the wall sleeve illustration. The use of pliers is recommended. If you DO NOT redirect, you run the risk of poor performance or product failure. This is not covered under the terms of the LGE warranty.

ITEM (inches) Qty.

Plastic grille 26

x16

Vertical insulation strip 15

Around Insulation Strips

Horizontal Insulation Strip 23

/32 x1

/16 1

Support Block 1

Baffle

14 x

Shim 11

x1x

2 Tr i m Fr a m e 2 Washer Screw 4 Nuts(Plastic) 4 Grille Rear 1

Wall Sleeve Dimensions (inches)

Brand

Width Height Depth

White-Westinghouse

25-1/2 15-1/4

16, 17-1/2

Frigidaire

or 22

Carrier (52F series) General Electric

26 15-5/8 16-7/8

/Hotpoint Whirlpool 25-7/8 16-1/2

17-1/8

or 23

Fedders/Emerson 27 16-3/4

16-3/4

or 19-3/4 LGE 25-7/8 15-17/32 16-23/32 Emerson/Fedders 26-3/4 15-3/4 15 Carrier (51S Series) 25-3/4 16-7/8 18-5/8 Friedrich 27 16-3/4 16-3/4

Procedure Brand

Depth(inches)

A LGE 16-23/32

White-Westinghouse Frigidaire Carrier

16, 17-1/2

(52F series)

or 22

General Electric

16-7/8

/Hotpoint Whirlpool 17-1/8 or 23 Carrier (51S series)

18-5/8

Fedders/Emerson

16-3/4

or 19-3/4

Emerson/Fedders 15 Friedrich 16-3/4

Owner’s Manual 13

ENGLISH

Installation

PROCEDURE A

Ifyouareusingthenewsleeve(optionally supplied with your unit),skip to step 3. Otherwise, install the plastic grille from the kit. Cut the plastic grille to 25-1/2" wide and 151/4" high. Place the plastic grille to the inside of the wall sleeve at the rear flange.

Fasten the 4 washer screws to secure the grille to the wall sleeve. If you need plastic nuts to mount plastic grille to the inside of the wall sleeve, there are plastic nuts in the installation kit. The nuts are installed from the inside of the sleeve and are pressing into the square holes of the rear flanges.

Remove the backing from the Vertical Insulation strip 15

and attach that to the inside right of the sleeve as shown below. Remove the backing from the Around Insulation strip 67

and attach that to the

inside front of the sleeve as shown below.

Install the new unit into the wall sleeve.

To assemb

le trim, snap the tab of each piece into the slot of the other piece as shown below. Slide trim over the front of the air conditioner until trim is flush with sleeve as shown below.

FIG. 4

Around Insulation

Vertical Insulation

9 1/2"6"

Indoor Outdoor

FIG. 6

FIG. 5

Wall

Trim (2 ea)

FIG. 7

• When handling the air conditioner, be careful to avoid cuts from sharp metal fins on front and rear coils.

• Make sure air conditioner does not fall during removal.

• If unit does not operate after installation check, to be sure the circuit interrupter has not been tripped. Refer to the Troubleshooting guide for reset procedure.

14 Room Air Conditioner

Installation

PROCEDURE B

Redirect the louvers at the back of the wall

sleeve to 60° angle as shown in the FIG 8. The use of pliers is recommended.

60°

Rear Louvers

(Top View)

If the wall sleeve already has a rear grille, skip

to step 4. If the wall sleeve does not have a rear grille or louvered panel, install the plastic grille from the kit. Cut the plastic grille to 25-1/2" wide and 15-1/4" high. Place the plastic grille to the inside of the wall sleeve at the rear flange.

60°

FIG. 8

Remove the backing from the Vertical Insulation

strip 15

and attach that to the

inside right of the sleeve as shown below. Remove the backing from the Around Insulation

strip 67

and attach that to the

inside front of the sleeve as shown below.

Indoor Outdoor

Around Insulation

Vertical Insulation

9 1/2"6"

FIG. 11

Place the plastic grille

Fasten the 4 washer screws to secure the grille

to the wall sleeve. If you need plastic nuts to mount plastic grille to the inside of the wall sleeve, there are plastic nuts in the installation kit. The nuts are installed from the inside of the sleeve and are pressed into the square holes of the rear flanges.

Fasten the screws

FIG. 9

FIG. 10

If the depth of your existing wall sleeve is less

than or equal to 18", skip to step 6. Otherwise, cut the baffles and the support blocks according to length "A" in the table below.

Depth"D" of the existing wall sleeve (inches)

18 D 18-5/

18-5/

19-3/4 D 22

D 19-3/

Length "A"

(inches)

1-3/4

Support Block

Baffle

FIG. 12

Owner’s Manual 15

ENGLISH

Installation

PROCEDURE B

Remove the backing from the support blocks and attach them to the inside of the wall sleeve as shown FIG 13. Slide the baffle into slots of the support blocks.

Install the new unit into the wall sleeve.

Assemble trim as described in Step 5, Procedure A.

Wall

Sleeve

Baffle

(

)

Front

Support Block

FIG. 13

CAUTION

• When handling the air conditioner, be careful to avoid cuts from sharp metal fins on front and rear coils.

• Make sure air conditioner does not fall during removal.

• If unit does not operate after installation check, to be sure the circuit interrupter has not been tripped. Refer to the Troubleshooting guide for reset procedure.

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