LG LT1237HNR User Manual

OWNER’S MANUAL

AIR CONDITIONER

Please read this manual carefully before operating your set and retain it for future reference.

NORSK SUOMI DANSK

TYPE : Through the Wall

MODELS LT1037HNR LT1237HNR

P/NO : MFL68744002 Rev.02_113017

www.lg.com

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 store flammables like

gasoline, benzene, thinner, etc.

near the air conditioner.

• 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.

No correlation between fan usage and oxygen depletion.

• 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 first 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.

Unplug the unit 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 electric shock.

Installation

Install the product so the exhaust and noise are not aimed directly at the neighbors.

• Be considerate.

Follow installation instructions exactly.

• Otherwise, it may cause vibration or water leakage.

Do not use this appliance for special purposes such as cooling pets,

foods, precision

machinery, or objects of art.

Instead of running air conditioning constantly

，open a window

for fresh air occasionally.

You will feel better.

If the liquid from the battery gets onto your skin or clothers，

wash it well with clean water. Do

not use the remote if the battery has leaked.

y

If you eat the liquid from the battery,brush your teeth and see doctor.Do not use the remote if the battery have leaked.

y

2. No correlation between fan usage and oxygen depletion.

3.

7

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

RESET

TEST

USE OF EXTENSION CORDS

RISK OF FIRE could cause serious injury or death DO NOT use an extension cord with this window air conditioner DO NOT use surge protectors or multi-outlet adapters with this window air conditioner

should

be

Avoid shock hazard. This unit cannot be user-serviced. Do NOT open the tamper-resistant sealed portion. All warranties and performance will be voided. This unit is not intended to be used as an ON/OFF switch.

WARNING:

This product contains chemicals known to

the State of California to cause cancer and birth defects

or other reproductive harm.

Wash hands after handling.

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 havearear grille to securely attach the new air conditioner. (Figure 1)

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

the new air conditioner. (Figure 2)

20-3/32"

(511 mm)

Air Conditioner

Aluminum metal grille

LGE Wall Sleeve

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, cal 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.

24"(610 mm)

14-13/32" (366 mm)

18-15/32"(468 mm)

Figure 1

25-7/8"

(656 mm)

15-17/32" (394 mm)

16-23/32" (425 mm)

l a qualified electrician to

Figure 2

INSTALLATION HARDWARE

1

8

9

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 7 TRIM FRAME 2 8 SHIM 2 910PLASTIC NUTS AND WASHER SCREWS

INSULATION STRIP

2 4

2 Size options

3

2 Size options

5

6

7

4 1

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 the unit over an extended period of time.

• 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

ENGLISH

Owner’s Manual 11

Installation

INSTALLATION

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.

• 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.

Plastic grille 26

ITEM (inches) Qty.

Vertical insulation strip 15 Around Insulation Strips

Horizontal Insulation Strip 26 Support Block 1 Baffle Shim 11 Trim Frame 2 Washer Screw 4 Nuts (Plastic) 4 Grille Rear 1 Insulation strip

67 59

3

14 x

5

3

1

/

x 16

4

2

9

3

/

x 1

16

8

1

3

/

x 1

8

27

3

/

x 1

32

3

/

/4

x 1

8

3

/

x 1

x 4

4

8

1

/

4

x

2

13

/

x 1 x

16

3

/

x 1

16

x 1

x

8

x 1

1

x

/ 3

25

x 1

5

8

/

3

1

3

/

1

8

/

1

32

3

/

1

8

3

/16

1

/

2

16

1 2

4

/

1

4

HOW TO INSTALL

Identify the existing wall sleeve before installing

1

the unit from the listed below.

Brand

White-Westinghouse Frigidaire Carrier (52F series) General Electric /Hotpoint

Whirlpool 25-7/8 16-1/2

Fedders/Emerson 27 16-3/4

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

NOTICE

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.

12 Room Air Conditioner

Wall Sleeve Dimensions (inches)

Width Height Depth

25-1/2 15-1/4

16, 17-1/2

or 22

26 15-5/8 16-7/8

17-1/8

or 23

16-3/4

or 19-3/4

Remove the old airconditioner from existing

2

wall sleeve. Clean the interior of the existing sleeve.

3

(Do not disturb seals.) Wall sleeve must be securely fastened in wall

4

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

5

unit. If you plan to use your e

xisting wal

l sleeve,

and it is not LGE, use procedure B or C below.

Procedure Brand

Depth(inches)

A LGE 16-23/32

White-Westinghouse Frigidaire Carrier (52F series) General Electric

B

/Hotpoint

16, 17-1/2

or 22

16-7/8

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

Fedders/Emerson

C

Emerson/Fedders 15

18-5/8 16-3/4

or 19-3/4

Friedrich 16-3/4

Install new unit into wall sleeve.

6

When installation is completed, the 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 the shim to the front of the rib on the base of the wall sleeve.

1" high

Shim

6" 6"

SHIM PLACEMENT UNIT INSTALLATION

FRONT

1/4"

3

/4" High

UNIT

Wall Sleeve

Figure 3

Remove the backing from the insulation strip

5

/

16

5 x 1 x and attach that to the top of

3

/

4

16

the cover as show below.

Cover

Insulation

Installation

PROCEDURE A

If you are using the new sleeve (optionally

1

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

2

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.

Figure 4

Install the new unit into the wall sleeve.

4

To assemble trim,

5

into the slot of the other piece as shown below.

snap the tab of each piece

Slide trim over the front of the air conditioner until trim is flush with sleeve as shown below.

Trim (2 ea)

Wall

ENGLISH

7 erugiF

or

Remove the backing from the vertical insulation

3

strip 15

9

3

x 1

3

/

x 1

and attach that to the

8

/

16

inside right of the sleeve as shown below. Remove the backing from the around insulation

1

3

strip 67

/

8

x 1

25

/

x

and attach that to the

8

32

inside front of the sleeve as shown below.

Indoor Outdoor

Around Insulation

Vertical Insulation

9 1/2" 6"

Figure 5

Figure 6

• 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.

• 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.

Owner’s Manual 13

Installation

PROCEDURE B

Redirect the louvers at the back of the wall

1

The use of pliers is recommended.

3

7

/

"

60°

Rear Louvers

(Top View)

If the wall sleeve already has a rear grille, skip

2

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.

32

.8 erugiF ni nwohs sa elgna °06 ot eveels

60°

Figure 8

Remove the backing from the Vertical Insulation

4

strip 15

9

3

x 1

3

/

x 1

and attach that to the

8

/

16

inside right of the sleeve as shown below.

ve the backing from the Around Insulation

Remo

1

3

strip 67

/

8

x 1

25

/

x

and attach that to the

8

32

inside front of the sleeve as shown below.

Indoor Outdoor

Around Insulation

Vertical Insulation

9 1/2" 6"

If the depth of your existing wall sleeve is less

5

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)

8

D 19-3/

8

4

18 D 18-5/

18-5/

19-3/4 D 22

Length A

(inches)

3

/4

1-3/4

4

A

Figure 11

Support Block

Baffle

Figure 12

Place the plastic grille

Fasten the 4 washer screws to secure the grille

3

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.

or

Fasten the screws

14 Room Air Conditioner

Figure 9

Figure 10

Owner’s Manual 15

PROCEDURE B

8

Remove the backing from the support blocks

6

and attach them to the inside of the wall sleeve as shown Figure 13 . Slide the baffle into slots of the support blocks.

Wall

in

(

Installation

3

7

"

)

/

32

Wall

Sleeve

Front

Install the new unit into the wall sleeve.

7

Assemble trim as described in Step 5, Procedure A.

Baffle

Support Block

Figure 13

CAUTION

• 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.

• 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.