LG ATNQ48GMLE2 Owner’s Manual

OWNER’S MANUAL

AIR CONDITIONER

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

www.lg.com

TYPE : CEILING CASSETTE

P/NO : MFL42619122

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TIPS FOR SAVING ENERGY

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TIPS FOR SAVING ENERGY

Here are some tips that will help you minimize the power consumption when you use the air
conditioner. You can use your air conditioner more efficiently by referring to the instructions
below:

• Do not cool excessively indoors. This may be harmful for your health and may consume more
electricity.

• Block sunlight with blinds or curtains while you are operating the air conditioner.

• Keep doors or windows closed tightly while you are operating the air conditioner.

• Adjust the direction of the air flow vertically or horizontally to circulate indoor air.

• Speed up the fan to cool or warm indoor air quickly, in a short period of time.

• Open windows regularly for ventilation as the indoor air quality may deteriorate if the air con­ditioner is used for many hours.

• Clean the air filter once every 2 weeks. Dust and impurities collected in the air filter may block
the air flow or weaken the cooling / dehumidifying functions.

For your records

Staple your receipt to this page in case you need it to prove the date of purchase or for warranty
purposes. Write the model number and the serial number here:

Model number :

Serial number :

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

Dealer’s name :

Date of purchase :

IMPORTANT SAFETY INSTRUCTIONS

IMPORTANT SAFETY INSTRUCTIONS

READ ALL INSTRUCTIONS BEFORE USING THE APPLIANCE.

Always comply with the following precautions to avoid dangerous situations and ensure peak
performance of your product

WARNING

It can result in serious injury or death when the directions are ignored

CAUTION

It can result in minor injury or product damage when the directions are ignored

WARNING

• Installation or repairs made by unqualified persons can result in hazards to you and others.

• The information contained in the manual is intended for use by a qualified service technician
familiar with safety procedures and equipped with the proper tools and test instruments.

• Failure to carefully read and follow all instructions in this manual can result in equipment mal­function, property damage, personal injury and/or death.

Installation

• Do not use a defective or underrated circuit breaker. Use this appliance on a dedicated circuit.
There is risk of fire or electric shock.

• For electrical work, contact the dealer, seller, a qualified electrician, or an Authorized Service
Center. Do not disassemble or repair the product. There is risk of fire or electric shock.

• Always ground the product. There is risk of fire or electric shock.

• Install the panel and the cover of control box securely. There is risk of fire or electric shock.

• Always install a dedicated circuit and breaker. Improper wiring or installation may cause fire or
electric shock

• Use the correctly rated breaker or fuse. 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 install, remove, or re-install the unit by yourself (customer). There is risk of fire, electric
shock, explosion, or injury.

• Be cautious when unpacking and installing the product. Sharp edges could cause injury. Be
especially careful of the case edges and the fins on the condenser and evaporator.

• For installation, always contact the dealer or an Authorized Service Center. There is risk of
fire, electric shock, explosion, or injury.

• Do not install the product on a defective installation stand. It may cause injury, accident, or
damage to the product.

• Be sure the installation area does not deteriorate with age. If the base collapses, the air condi­tioner could fall with it, causing property damage, product failure, and personal injury.

• Do not let the air conditioner run for a long time when the humidity is very high and a door or
a window is left open. Moisture may condense and wet or damage furniture.

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IMPORTANT SAFETY INSTRUCTIONS

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Operation

• Take care to ensure that power cable could not be pulled out or damaged during operation.
There is risk of fire or electric shock.

• Do not place anything on the power cable. There is risk of fire or electric shock.

• Do not plug or unplug the power supply plug during operation. There is risk of fire or electric
shock.

• Do not touch(operate) the product with wet hands. There is risk of fire or electrical shock.

• Do not place a heater or other appliances near the power cable. There is risk of fire and elec­tric shock.

• Do not allow water to run into electric parts. It may cause There is risk of fire, failure of the
product, or electric shock.

• Do not store or use flammable gas or combustibles near the product. There is risk of fire or
failure of product.

• Do not use the product in a tightly closed space for a long time. Oxygen deficiency could
occur.

• When flammable gas leaks, turn off the gas and open a window for ventilation before turn the
product on. Do not use the telephone or turn switches on or off. There is risk of explosion or
fire

• 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.

• Stop operation and close the window in storm or hurricane. If possible, remove the product
from the window before the hurricane arrives. There is risk of property damage, failure of
product, or electric shock.

• Do not open the inlet grill of the product during operation.(Do not touch the electrostatic filter,
if the unit is so equipped.) There is risk of physical injury, electric shock, or product failure.

• When the product is soaked (flooded or submerged), contact an Authorized Service Center.
There is risk of fire or electric shock.

• Be cautious that water could not enter the product. There is risk of fire, electric shock, or
product damage.

• Ventilate the product from time to time when operating it together with a stove, etc. There is
risk of fire or electric shock.

• Turn the main power off when cleaning or maintaining the product. There is risk of electric
shock.

• When the product is not be used for a long time, disconnect the power supply plug or turn off
the breaker. There is risk of product damage or failure, or unintended operation.

• Take care to ensure that nobody could step on or fall onto the outdoor unit. This could result
in personal injury and product damage.

IMPORTANT SAFETY INSTRUCTIONS

CAUTION

Installation

• Always check for gas (refrigerant) leakage after installation or repair of product. Low refrigerant lev-

els may cause failure of product.

• Install the drain hose to ensure that water is drained away properly. A bad connection may cause

water leakage.

• Keep level even when installing the product. To avoid vibration or water leakage.

• Do not install the product where the noise or hot air from the outdoor unit could damage the neigh-

borhoods. It may cause a problem for your neighbors.

• Use two or more people to lift and transport the product. Avoid personal injury.

• Do not install the product where it will be exposed to sea wind (salt spray) directly. It may cause cor-

rosion on the product. Corrosion, particularly on the condenser and evaporator fins, could cause
product malfunction or inefficient operation.

Operation

• Do not expose the skin directly to cool air for long periods of time. (Don't sit in the draft.) This could

harm to your health.

• Do not use the product for special purposes, such as preserving foods, works of art, etc. It is a con-

sumer air conditioner, not a precision refrigeration system. There is risk of damage or loss of prop­erty.

• Do not block the inlet or outlet of air flow. It may cause product failure.

• Use a soft cloth to clean. Do not use harsh detergents, solvents, etc. There is risk of fire, electric

shock, or damage to the plastic parts of the product.

• Do not touch the metal parts of the product when removing the air filter. They are very sharp! There

is risk of personal injury.

• Do not step on or put anyting on the product. (outdoor units) There is risk of personal injury and fail-

ure of product.

• Always insert the filter securely. Clean the filter every two weeks or more often if necessary. A dirty

filter reduces the efficiency of the air conditioner and could cause product malfunction or damage.

• Do not insert hands or other objects through the air inlet or outlet while the product is operated.

There are sharp and moving parts that could cause personal injury.

• Do not drink the water drained from the product. It is not sanitary and could cause serious health is-

sues.

• Use a firm stool or ladder when cleaning or maintaining the product. Be careful and avoid personal

injury.

• Replace the all batteries in the remote control with new ones of the same type. Do not mix old and

new batteries or different types of batteries. There is risk of fire or explosion

• Do not recharge or disassemble the batteries. Do not dispose of batteries in a fire. They may burn or

explode.

• If the liquid from the batteries gets onto your skin or clothes, wash it well with clean water. Do not

use the remote if the batteries have leaked. The chemicals in batteries could cause burns or other
health hazards.

• If you eat the liquid from the batteries, brush your teeth and see doctor. Do not use the remote if
the batteries have leaked. The chemicals in batteries could cause burns or other health hazards.

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TABLE OF CONTENTS

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TABLE OF CONTENTS

2 TIPS FOR SAVING

ENERGY

3 IMPORTANT SAFETY

INSTRUCTIONS

7 BEFORE USE

7 Preparing for operation
7 Usage
7 Cleaning and maintenance
7 Service

8 PRODUCT

INTRODUCTION

8 Name and function of parts
8 What to do before operation
9 Operation Indication Lamps
10 Wireless Remote Controller

12 INSTALLATION

INSTRUCTIONS

12 Installer Setting -How to enter installer

setting mode

13 Installer Setting - Installer Setting

Code Table

14 Installer Setting - Setting Address of

Central Control

14 Installer Setting - Checking Address of

CentAral Control

15 OWNER'S

INSTRUCTION

15 Cooling Mode - Standard Operation
15 Cooling Mode - Power Cooling
16 Auto Operation Mode
17 Dehumidification Mode
18 Fan Mode
19 Temperature Setting/Room Tempera-

ture checking

20 Airflow Setting
21 Plasma Purification(Optional)
21 Celsius/Fahrenheit Switching
22 Individual vane angle control (Optional)
23 Timer

24 MAINTENANCE AND

SERVICE

24 Indoor Unit
25 Purifying filter(Optional)
26 Operation Tips!
26 When the air conditioner is not

going....

27 Troubleshooting Tips! Save time and-

money!

27 Call the service immediately in the fol-

lowing situations

BEFORE USE

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Preparing for operation

• Contact an installation specialist for installation.

• Use a dedicated circuit.

Usage

• 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.

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

• 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.

Cleaning and maintenance

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

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

• 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.

BEFORE USE

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PRODUCT INTRODUCTION

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Name and function of parts

1. Indoor unit

2. Outdoor unit

3. Remote controller

4. Inlet air

5. Discharge air

6. Refrigerant piping, connection electric wire

7. Drain pipe

8. Ground wire
Wire to ground outdoor unit to prevent electrical shocks.

PRODUCT INTRODUCTION

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PRODUCT INTRODUCTION

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Operation Indication Lamps

123 4 5 6

1 Forced operation : Operation procedures when remote control can’t be used.
2 Defrost Mode : Lights up during defrost mode or hot start operation.

(heat pump model only)

3 Timer : Lights up during timer operation.
4 Signal Receptor : Receives the signal from remote control (signal receiving sound: two short

beeps and one long beep)

5 Filter sign : Lights up after 2400 hours from the time of first operation.
6 On/Off : Lights up during system operation.