Lg Lcn245hv Owner's Manual

OWNER’S MANUAL

AIR CONDITIONER

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

P/NO : MFL42619114

TYPE : Ceiling Cassette

www.lg.com

http://www.lghvac.com

ENGLISH FRANÇAIS ESPAÑOL

2 Air Conditioner

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, 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.

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

B. Product Introduction....................6

C. Operating instructions...............10

D. Maintenance and Service ..........35

Safety Precautions

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.

This symbol indicates the possibility of death or serious injury.

This symbol indicates the possibility of injury or damage.

WARNING

Always ground the product.

• There is a risk of electric shock.

Do not use a defective or underrated
circuit breaker. Use the correctly rated
breaker and fuse.

• There is risk of fire or electric shock .

Do not use a multi consent. Always use
this appliance on a dedicated cicuit and
breaker.

• Otherwise it can cause electric shock or fire.

For electrical work, contact the dealer, seller,
a qualified electrician, or an Authorized
Service Center. Do not disassemble or repair
the product by yourself.

• There is risk of fire or electric shock.

Always ground the product as per the
wiring diagram. Do not connect the
ground wire to gas or water pipes
lightening rod or telephone ground wire.

• 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 due to
dust , water etc.

Use the correctly rated breaker or fuse.

• There is risk of fire or electric shock.

Do not modify or extend the power cable.
If the power cable or cord has scrathes or
skin peeled off or deteriorated then it
must be replaced.

• There is risk of fire or electric shock.

For installation, removal or reinstall ,
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. Be sure that the
installation area does not deteriorate with
age.

• It may cause product to fall.

Never install the outdoor unit on a
moving base or a place from where it
can fall down.

• The falling outdoor unit can cause damage or
injury or even death of a person.

When the product is soaked (flooded or
submerged) in water , contact an
Authorized Service Center for repair
before using it again.

• There is risk of fire or eletric shock.

Be sure to check the refrigerant to the
used. Please read the label on the product.

• Incorrect refrigerant used can prevent the
normal operation of the unit.

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

• Otherwise it may cause a fire or electrical
shock.

Do not touch , operate, or repair the
product with wet hands. Hold the plug by
hand when taking out

• There is risk of electric shock or fire.

Do not place a heater or other heating
appliances near the power cable.

• There is risk of fire and electric shock.

Do not allow water to run into electric
parts. Install the unit away from water
sources.

• There is risk of fire, failure of the product, or
electric shock.

Do not store or use or even allow
flammable gas or combustibles near the
product.

• There is risk of fire.

WARNING

CAUTION

Safety Precautions

4 Air Conditioner

Indoor/outdoor wiring connections must
be secured tightly and the cable should
be routed properly so that there is no
force pulling the cable from the
connection terminals.

• Improper or loose connections can cause
heat generation or fire.

Safely dispose off the packing materials.
Like screws, nails, batteries, broken
things etc after installation or svc and
then tear away and thraw away the plastic
packaging bags.

• Children may play with them and cause
injury.

Make sure to check that the power cable
plug is not dirty, loose or broken and
then only insert the plug completely.

• Dirty, loose or broken power plug can
cause electric shock or fire.

Do not use the product in a tightly closed
space for a long time. Perform ventilation
regularly.

• Oxygen deficiency could occur and hence
harm your health.

Do not open the front grille 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.

If strange sounds, smell or smoke comes
from product.Immediately turn the breaker
off or disconnect the power supply cable.

• There is risk of electric shock or fire.

Ventilate the product room from time to
time when operating it together with a
stove, or heating element etc.

• Oxygen deficiency can occur and hence harm
your health.

Turn the main power off and unplug the
unit when cleaning or repairing the
product.

• There is risk of electric shock.

When the product is not to 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
especially kids could step on or fall onto
the outdoor unit.

• This could result in personal injury and
product damage.

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 to turn the unit
ON/OFF .

• There is risk of fire or electric shock.

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.

CAUTION

Two or more people must 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 corrosion on the product.

Install the drain hose to ensure that the
condensed water is drained away properly.

• A bad connection may cause water leakage.

Keep level even when installing the
product.

• To avoid vibration or noise.

Do not install the product where the noise
or hot air from the outdoor unit could
damage or disturb the neighborhoods.

• It may cause a problem for your neighbors
and hence dispute.

Always check for gas (refrigerant)
leakage after installation or repair of
product.

• Low refrigerant levels may cause failure of
product.

In outdoor unit the step-up capacitor
supplies high voltage electricity to the
electrical components. Be sure to
discharge the capacitor completely
before conducting the repair work.

• An charged capacitor can cause electrical
shock.

When installing the unit, use the
installation kit provided with the product.

• Otherwise the unit may fall and cause severe
injury.

Be sure to use only those parts which
are listed in the svc parts list. Never
attempt to modify the equipment.

• The use of inappropriate parts can cause an
electrical shock, excessive heat generation or
fire.

Safety Precautions

Owner's Manual 5

ENGLISH

Do not use the product for special purposes,
such as preserving foods, works of art, etc. It
is a consumer 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 or splashing
water 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.

• 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 failure of
product.

Always insert the filter securely after
cleaning. Clean the filter every two weeks
or more often if necessary.

• A dirty filter reduces the efficiency.

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

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

Be cautious when unpacking and
installing the product.

• Sharp edges could cause injury.

If the refrigerant gas leaks during the
repair, do not touch the leakaing
refrigerant gas.

• The refrigernat gas can cause frostbite (cold
burn)

Do not tilt the unit when removing or
uninstalling it.

• The condensed water inside can spill .

Do not mix air or gas other than the
specified refrigerant used in the system .

• If air enters the refrigerant system, an
excessively high pressure results, causing
equipment damage or injury.

If the refrigerant gas leaks during the
installation, ventilate the area immediately.

• Otherwise it can be harmfull for your health.

Dismantling the unit, treatment of the
refrigerant oil and eventual parts should
be done in accordance with local and
national standards.

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 product failure.

Do not recharge or disassemble the
batteries. Do not dispose off 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 hazard.

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.

Do not expose your skin or kids or
plants to the cool or hot air draft.

• This could harm to your health.

Do not drink the water drained from the
product.

• It is not sanitary and could cause serious
health issues.

Use a firm stool or ladder when cleaning,
maintaining or repairing the product at
an height.

• Be careful and avoid personal injury.

6 Air Conditioner

Product Introduction

Product Introduction

Indoor Units

Here is a brief introduction of the indoor and outdoor units. Please see the information specific to your indoor
unit type.

❈ The figure can be changed according to model.

[Ceiling Cassette Type]

Cabinet

Air Discharge

Air Inlet

Signal receiver

Front Panel

Connection pipe
Drain hose

Connecting wire

Control cover

Air intake vents

Outdoor Unit

Air outlet vents

Base plate

Product Introduction

Owner's Manual 7

ENGLISH

Operation Indication Lamps

1. The signal receiver is inside the unit.

2.

Aim the remote controller towards the unit to operate it.
There should not be any blockage in between.

Ceiling Cassette Type

Operating Method

[Ceiling Cassette Type]

: Lights up during the system operation.

Filter Sign : Lights up after 2400 hours from the time of first operating unit.
Timer : Lights up during Timer operation.

Defrost Mode : Lights up during Defrost Mode or Hot Start operation.(Heat pump model only)

On/Off

Forced

•

: To operate the unit when the remote control can't be used
for any reason.

* Hot start operation: Stops the indoor fan in heating operation for minutes to prevent cold air from blowing out

from unit.
* In defrost mode unit stops heating operation for few minutes to remove formation of ice on the heat
exchanger coils to maintain the efficiency.

8 Air Conditioner

Product Introduction

Wired Remote Controller

❈ Display temperature can be different from actual room temperature if the remote controller is

installed at the place where sun-rays are falling directly or the place nearby heat source.

❈

The actual product can be different from above contents depending upon model type.

OPERATION INDICATION
SCREEN

SET TEMPERATURE Button
WIRELESS REMOTE

CONTROLLER RECEIVER

• Some products don't receive the
wireless signals.

VENTILATION Button
OPERATION MODE SELECTION

Button
SUBFUNCTION Button
FUNCTION SETTING Button
EXIT Button
ON/ OFF Button
ROOM TEMPERATURE Button
FAN SPEED Button
AIR FLOW Button
RESERVATION/ TIME SETTING

Button
SETTING/ CANCEL Button
UP, DOWN, LEFT, RIGHT Button
RESET Button

1

9

11
12

3

5
6

2

4

16
10

13
14

7
8

15

1

2
3

4
5

6
7
8

9
10
11

12
13

14
15
16

NOTE

Owner's Manual 9

ENGLISH

Product Introduction

Wireless Remote Controller

PLASMA Button (Optional)

Used to start or stop the plasma-purification
function.

JET COOL Button

Speed cooling operates super high fan speed.

OPERATION MODE SELECTION Button

Used to select the operation mode.

FUNCTION SETTING Button

Used to set or clear Auto Clean or Amart Clean.

LCD LUMINOSITY Button (Optional)

Used to adjust LCD luminosity

SMART CLEAN Button (Optional)

Used to start or stop Smart Clean.

CLEAR ALL Button

Used to clear all timer.

ROOM TEMPERATURE SETTING Button

Used to select the room temperature.

ON/OFF Button

Used to turn on/off the unit.

INDOOR FAN SPEED SELECTION Button

Used to select fan speed in four steps low,
medium, high and chaos.

UP/DOWN AIRFLOW Button

Used to stop or start louver movement and set
the desired up/down airflow direction.

LEFT/RIGHT AIRFLOW Button(Optional)

Used to set the desired left/right(horizontal)
airflow direction.

TIMER AND TIME SETTING Button

Used to set the time of starting or stopping and
sleeping operation.

ROOM TEMPERATURE CHECKING Button

Used to check the room temperature.

°C/°F SWITCH Button

Used to switch temperature reading from
Celsius to Fahrenheit.

RESET Button

Used to reset the remote controller.

1

2
3
4

5
6
7

8
9

10

11

12

13

14

15

16

8

1

2

3

4
5

6

7

Operation Mode

Cooling Mode

Auto Operation

Dehumidification mode

Heating Mode

Fan Mode

•

Cooling Model( ), Heat Pump Model( )

9

10

11
12

13
14

15

16

10 Air Conditioner

Operating Instructions

Cooling Mode - Standard Operation

Press button to turn on the indoor.

1

Press button to select Cooling operation mode.

2

Adjust the desired temperature by pressing buttons.
Press button to check the Room temperature.

When setting the desired temperature higher than room
temperature, only ventilation wind is blow out instead of cooling
wind.

3

Operating instructions

❖ Setting Temp Range : 18˚C~30˚C.

1. Wired Remote Controller

2. Wireless Remote Controller

Press the ON/OFF button.
The unit will respond with beep sound.

1

Press MODE button to select Cooling Mode.

2

To lower the temperature

To raise the temperature

Set the desired temperature by pressing TEMP button.
Press ROOM TEMPERATURE CHECKING button to
check the room temperature. When setting the desired
temperature is higher than room temperature, cooling
wind isn’t blow out.

❈ Setting Temp. Range : 18~30°C(64~86°F)

3

Operating Instructions

Owner's Manual 11

ENGLISH

Cooling Mode - Power Cooling

Press button to turn on the indoor.

1

Press button to select Cooling operation mode.

2

Press button continuously until "Po" displayed.

3

It makes the room cool using pleasant and fresh air quickly

Press the ON/OFF button.
The unit will respond with beep sound.

1

Press MODE button to select Cooling Mode.

2

Press the JET COOL button. The unit will operate in super
high fan speed in cooling mode.
❈ Wall mounted models operate power cooling mode for

30 minutes.

3

To cancel the Power cooling Mode press the Jet Cool button or the fan button
or the room temperature setting button again and the unit will operate in high
fan speed in cooling mode.

4

or or

1. Wired Remote Controller

2. Wireless Remote Controller

Operating Instructions

12 Air Conditioner

Press button to turn on the indoor.

1

Press button to select Heating mode.

2

Adjust the desired temperature by pressing buttons.
When setting the desired temperature lower than room temperature,

there is only ventilation wind.

3

Heating Mode

❖ Setting Temp Range : 16˚C~30˚C.

1. Wired Remote Controller

2. Wireless Remote Controller

Set the desired temperature by pressing TEMP button.
Press ROOM TEMPERATURE CHECKING button to check the room
temperature.
When setting the desired temperature is lower than room
temperature, heating wind isn’t blow out.

3

Set the fan speed again. You can select the fan speed in four
steps–low, medium, high, or chaos. Each time the button is pressed,
the fan speed mode is shifted.

4

Press the ON/OFF button.
The unit will respond with beep sound.

1

Press MODE button to select Heating Mode.

2

❈ Setting Temp. Range in

Heating Mode : 16~30°C
(60°F~86°F)

To raise the temperature

To lower the temperature