LG SP121CM Owner's Manual

ENGLISH

ESPAÑOL

OWNER’S MANUAL

AIR CONDITIONER

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

TYPE:WALL MOUNTED

MODELS

SP182CM

P/NO:MFL68070403

N56

SP182CM

U56

SP242CM

N56

SP242CM

U56

www.lg.com

Room Air Conditioner Owner’s Manual

TABLE OF CONTENTS

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

B. Electrical Safety...................................6

Temporary Use of an Adapter ...............6

Temporary Use of an Extension Cord ...6

Symbols used in this Manual.................6

C. Product Introduction...........................7

Indoor Units ...........................................7

Operation Indication Lamps ..................8

Outdoor Unit ..........................................8

D. Operating Instructions........................9

How to insert the Batteries ....................9

Wireless Remote Controller

Maintenance..........................................9

Operating Method..................................9

Wireless Remote Controller

Cooling Only Model ..........................10

Wireless Remote Controller

Heat Pump Model .............................11

Operation Mode...................................12

Auto Operation.....................................13

Healthy Dehumidification Operation

Air Circulation Operation

.....13

.....................14

Auto Clean Operation..........................14

Energy-Saving Cooling Model ............15

Display Luminosity(Optional) ..............15

Setting the Current Time......................15

Timer Setting

........................................16

To Cancle The Timer Setting...............16

Sleep Mode Operation ........................16

Horizontal Vane Control
Jet Cool

Operation...............................17

......................

17

Forced Operation.................................17

E. Maintenance and Service..................18

Indoor Unit...........................................18

Outdoor Unit ........................................20

Operation Tips!....................................20

Self-Diagnosis Function ......................20

Troubleshooting Tips!

Save time and money!.........................21

Call the service immediately in the

following situations ..............................21

Spec sheet...........................................22

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

for service at all.

first, you may not need to call

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.

• This appliance is not intended for use by persons
(including children) with reduced physical,sen­sory or mental capabilities, or lack of experience
and knowledge, unless they have been given su-

pervision or instruction concerning use of the
appliance by a person responsible for their safety.
Children should be supervised to ensure that they
do not play with the appliance.

WARNING: Before accessing the terminals, all

WARNING: Fixed installations will incorporate

WARNING: This device will not be accessible to

WARNING: The appliance must be installed in

power circuits must be disconnected.

disconnect means in accordance with
installation rules.

public.

accordance with national regulations
for electrical installations.

2 Room Air Conditioner

Plug in the power plug properly.

Otherwise, it will cause electric shock or fire due to heat generation or electric shock.

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.

Do not damage or use an unspecified power cord.

It will cause electric shock or fire.
In the supply cord is damaged, it must be replaced by the manufacturer or its service agent or a similarly
quallfied order to avoid a hazard.(Y Attachment)

Do not modify power cord length or share the outlet with other appliances.

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

Do not operate with wet hands or in damp environment.

It may cause electric shock.

Do not direct airflow at room occupants only.

This could damage your health.

Always perform grounding work.

No grounding may cause electric shock.

Do not allow water to run into electric parts.

It may cause failure of machine or electric shock.

Always install air leakage breaker and a dedicated switching board.

No installation may cause fire and electric shock accident.

Unplug the unit if strange sounds,smell,or smoke comes from it.

It may cause fire and electric shock accident.

Do not use the socket if it is loose or damaged.

It may cause fire and electric shock.

Do not open the entrance during operation.

It may cause electric shock.

ENGLISH

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

Two or more peopie 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.
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 excessiveiy 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.

There may bum 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.
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.

WARNING: Before accessing the terminals, all power circuits must be disconnected.

WARNING: This device will not be accessible to the public.

WARNING: The appliance must be installed in accordance with national regulations for electrical

installations.

ENGLISH

6 Room Air Conditioner

Electrical Safety

Electrical Safety

• This appliance must be properly grounded.
To minimize the risk of electric shock, you must alway plug into a grounded oulet.

• Do not cut or remove the grounding prong from the power plug.

• 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.

• If you have any doubt whether the air conditioner is properly grounded, have the wall receptacle and
circuit checked by a qualified electrician.

We strongly discourage the use of an adapter due to potential safety hazards. For temporary connections,
use only a genuine adapter, available from most local hardware stores. Ensure that the large slot in the
adapter is aligned with the large slot in the receptacle for a proper polarity connection.

To disconnect the power cord from the adapter, use one hand on each to avoid damaging the ground
terminal. Avoid frequently unplugging the power cord as this can lead to eventual ground terminal damage.

• Never use the appliance with a broken adapter.

We strongly discourage the use of an extension cord due to potential safety hazards.

Temporary Use of an Adapter

Temporary Use of an Extension Cord

This symbol alerts you to the risk of electric shock.

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

This symbol indicates special notes.

NOTE

Symbols used in this Manual

This appliance should be installed in accordance with national wiring regulations. This guide acts as a
guide to help to explain product features.

Product Introduction

Product Introduction

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

Indoor Units

Standard Split Type

Display panel LED indicators

Air Inlet

Front Panel

ON/OFF Button

ENGLISH

Art Cool Type Wide

Art Cool Deluxe(Type 1)
Display panel LED indicators

Air discharge

Front panel

Signal receiver

Air Filter

Air inlet

Plasma filter

Air filter

Power cord

ON/OFF button

Signal Receptor

Art Cool Deluxe(Type 2)
Display panel LCD indicators

Air discharge

Front panel

Signal receiver

Air inlet
Air filter

Plasma filter

Power cord
ON/OFF button

Owner's Manual 7

Product Introduction

Operation Indication Lamps

On/Off

: Lights up during the system operation, error code and auto restart setting.

Sleep mode : Lights up during sleep mode auto operation.(non-Inverter Model)

Plasma : The function illustrates its dynamic mode by using a multiple lighting system.

: Lights up during timer operation.(non-Inverter Model)
Lights up during timer operation or sleep mode auto operation (Inverter Model only)

: Lights up during defrost mode or hot start operation (Heat pump model only)
: Lights up during outdoor unit operation. (Cooling model only)

OUT

DOOR

Timer

Defrost mode
Outdoor unit

operation

Power Display : Indicates the setting temperature and operation mode.

Operation

mode

Shape of

display

Cooling, heating,
Dehumidification

temperature

Standard Too hot Hot Cold Too cold

Mode

Setting

Auto operation mode

Comfortable

Jet

Cool/Heat

Energy-saving
cooling mode

Test

operation

Auto

clean

! 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.

Outdoor Unit

Air intake vents

Connecting
wires

Air outlet vents

Base plate

8 Room Air Conditioner

Refrigerant pipes

Drain hose

NOTE

Operating Instructions

NOTE

Operating Instructions

How to insert the Batteries

1. Remove the battery cover by pulling it according to the arrow direction.

2. Insert new batteries making sure that the (+) and (-) of battery are
installed correctly.

3. Reattach the cover by sliding it back into position.

1. Always use/replace both batteries of same type.

2. If the system is not to be used for a long time, remove the batteries to
save their working life.

3. If the display screen of remote controller starts, fading replace both of
the batteries.

4. Use 2 AAA(1.5 volt) batteries.

Wireless Remote Controller Maintenance

1.

Choose a suitable place where its safe & easy to reach.

2. Fix the holder to wall etc with the supplied

screws firmly.

3. Slide the remote controller inside the holder.

1. Remote controller should never be exposed to
direct sunlight.

2. Signal transmitter & receiver should always be
clean for proper communication. Use a soft
cloth to clean them.

3. In case some other appliances also get operated with remote control, change their position or consult
your serviceman.

ENGLISH

Operating Method

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.

Owner's Manual 9

Operating Instructions

Wireless Remote Controller (Cooling Only Model)

ENGLISH

JET
COOL

Display screen

Control panel

Control

panel

JET
COOL

Display

screen

-

-

-

Description

Fan button : Air come out from the
indoor unit below to the room without
air temperature change.

Sleep mode auto button*: Sets the
sleep mode auto operation.

Temperature adjustment buttons:

Adjusts the room temperature when
cooling and heating.

On/Off button: Turns the power
on/off.

Indoor fan speed button: Adjusts the
fan speed.

Operation mode selection button*:

Selects the operation mode.
Cooling operation ( ) /

Auto operation ( ) /

Dehumidifying operation ( )

Jet cooling*:

temperature within a short period of
time.

Air flow direction button: Adjusts the
air flow direction vertically.

Temperature display button: Displays
the room temperature. Press for
5 sec, conversion °C / °F

Timer button: Sets the current time
and the start / end time.

Navigation and functions button*:

Adjusts the time and sets the special
functions.

: Auto clean / : Operates energy

saving cooling
Set/clear button: Sets or cancels

functions.

Reset button : Resets the remote
control settings.

LIGHT button: Adjusts the brightness
of the indoor unit display.

cools down the indoor

* Some functions may not be supported, depending on the

model.

• Reset (display): When you press the reset button, all the functions shown on the screen of remote
controller (above image), will be visible on the display. But some of these functions are optional for
your product and may not actually function.

Room Air Conditioner 10

Wireless Remote Controller (Heat Pump Model)

Operating Instructions

JET
COOL

Display screen

Control panel

Control

panel

JET
COOL

Display

screen

-

-

-

Description

Fan button : Air come out from the
indoor unit below to the room without
air temperature change.

Sleep mode auto button*: Sets the
sleep mode auto operation.

Temperature adjustment buttons:

Adjusts the room temperature when
cooling and heating.

On/Off button: Turns the power
on/off.

Indoor fan speed button: Adjusts the
fan speed.

Operation mode selection button*:

Selects the operation mode.
Cooling operation (
Auto changeover (

Dehumidifying operation (

operation ( )

Jet cooling*:

temperature within a short period of
time.

Air flow direction button: Adjusts the
air flow direction vertically.

Temperature display button: Displays
the room temperature. Press for
5 sec, conversion °C / °F

Timer button: Sets the current time
and the start / end time.

Navigation and functions button*:

Adjusts the time and sets the special
functions.

: Auto clean / : Operates energy

saving cooling
Set/clear button: Sets or cancels

functions.

Reset button : Resets the remote
control settings.

LIGHT button: Adjusts the brightness
of the indoor unit display.

) /

) /

) / Heating

cools down the indoor

ENGLISH

* Some functions may not be supported, depending on the

model.

• Reset (display): When you press the reset button, all the functions shown on the screen of remote
controller (above image), will be visible on the display. But some of these functions are optional for
your product and may not actually function.

Owner's Manual 11

Operating Instructions

Operation Mode

Press the ON/OFF BUTTON to turn the unit on.

1

The unit will respond with a beep.

Press the operation mode button. Each time the button is pressed,

2

the operation mode is shifted in the direction of the arrow.

Cooling

For cooling operation set the desired indoor temperature by
pressing the ROOM TEMPERATURE SETTING BUTTONS.

3

For cooling the temperature can be set within 18°C~30°C and
for heating the temperature range is 16°C~30°C.

Set the fan speed with the remote controller. You can select the fan speed.

Auto

Operation

Dehumidification

4

Step1(Low) Step2(Medium) Step3(High)Natural Wind

Heating

(Heat pump model only)

Natural wind

For fresher feeling, press the INDOOR FAN SPEED SELECTION BUTTON and set to Natural wind mode.
In this mode, the wind blows like a natural breeze by automatically changing fan speed.

12 Room Air Conditioner

Auto Operation

Operating Instructions

<For Cooling Model>

The temperature and fan speed are automatically set by the electronic
controls based on the

actual room temperature.
If you feel hot or cold, press TEMPERATURE SETTING buttons for more
cooling or heating effect.
You cannot switch the indoor fan speed. It has already been set by the
Auto Operation Mode rule.

Code Description

2 Cool
1 Cool slightly
0 Maintain

room
temperature

-1 Heat slightly

-2 Heat

<For Heating Model>

You can set desired temperature and indoor fan speed.
Setting Temp. Range : 18~30°C.

NOTE

: You can not set the actual setting temperature and the fan

speed in this operation mode. But you can use the Auto swing
in this operation. If the system is not operating as desired,
switch manually to another mode

ENGLISH

Healthy Dehumidification Operation

During Healthy Dehumidification Operation

If you select the dehumidification mode on the OPERATION MODE
SELECTION BUTTON, the product starts to run the dehumidification
function.
It automatically sets the room temperature and airflow volume to the best
condition for dehumidification, based on the sensed current room

temperature.
In this case, however, the setting temperature is not displayed on the remote
controller and you are not able to control the room temperature either.

During the healthy dehumidification function, the fan speed is automatically

set according to the optimization algorithm responding to the current room

temperature status, so that the room condition is kept healthy and

comfortable even in the very humid season.

Owner's Manual 13

Operating Instructions

Air Circulation Operation

This operation circulates the air without cooling. It can be activated
by pressing the OPERATION MODE SELECTION BUTTON. Once
the air circulation is activated you can select the fan speed by
pressing the INDOOR FAN SPEED SELECTION BUTTON.

Auto Clean Operation

During Auto Clean Operation, moistures left in indoor units after cooling operation or healthy
dehumidification operation can be removed.

Select Auto Clean Operation by the function setting button( ) .
Now whenever the unit is turned off, the indoor fan is still running

for about 30 minutes internally without cooling or dehumidification
operation. This function dries up any remains of moisture & cleans
the unit internally. If you push the Auto Clean button again, this
function is cancelled.

NOTE

During Auto Clean fuction, only ON/OFF button, Plasma button, Auto Clean
button is used. During this operation, 'Cooling' lamp lights up.

14 Room Air Conditioner