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LG ARNU12GSER1 Owner's Manual

Made by: LG
Type: Owner's Manual
Category: Heat Pump
Pages: 14
Size: 2.12 MB

 

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LG

IMPORTANT

• Please read this owner's manual carefully and thoroughly 

before installing and operating your room air conditioner. 

• Please retain this owner's manual for future reference after 

reading it  thoroughly.

Prior to installation, this air-
conditioning unit must be
submitted for approval by the
utility service which provides
electricity (EN 61000-2, 
EN 61000-3 Norm).

Models: SE/S3 Series
Type: ART COOL Mirror Type

ENGLISH

ITALIANO

ESPAÑOL

FRANÇAIS

DEUTSCH

COOLING MODE

OPERATING TEMPERATURE(

°

C)

INDOOR

OUTDOOR

MAX.

MIN.

MAX.

MIN.

32

°

C

21

°

C

43

°

C

21

°

C

HEATING MODE

INDOOR

OUTDOOR

MAX.

MIN.

MAX.

MIN.

27

°

C

20

°

C

24

°

C

1

°

C

 


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2

Indoor Unit

Artcool Deluxe Type  Indoor Unit 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
to prove date of purchase or to issue warranty.

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.

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

Prior to Operation ..................8

Product Introduction..............9

Operating Instructions.........10

Maintenance and Service ....12

Before you Call for Service ....14

 


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ENGLISH

Safety Precautions  

Owner’s Manual  3

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

This symbol indicates the possibility of death or serious injury.

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

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

Be sure not to do.

Be sure to follow the instruction.

WARNING

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.

 


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Safety Precautions   

4

Indoor Unit

Operation

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 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 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.

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.

 


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ENGLISH

Safety Precautions  

Owner’s Manual  5

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.

Gasolin

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.

 


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Safety Precautions   

6

Indoor Unit

Installation

CAUTION

Operation

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

• Low refrigerant levels 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 neighborhoods.

• 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 corrosion on the product.

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

90˚

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.

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 consumer
air conditioner, not a precision refrigeration system.

• There is risk of 

damage or 
loss of property.

 


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Safety Precautions  

Owner’s Manual  7

ENGLISH

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.

W

ax

Thinner

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. 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 issues.

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.

 


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Prior to operation 

8

Indoor Unit

Prior to Operation

1. Contact an installation specialist for installation.

2. Use a dedicated circuit.

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

 


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ENGLISH

Product Introduction

Owner’s Manual  9

Product Introduction

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

Indoor Units

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.

Plasma

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

Timer

: Lights up during timer operation or  sleep mode auto operation.

Defrost mode

Power Display : Indicates the setting temperature and operation mode.
 

(Cooling, heating,auto operation,dehumidification mode)

: Lights up during defrost mode or *hot start operation (Heat pump model only)

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.

Art Cool Mirror(Type 1)
Display panel LED indicators 

Signal receiver

Front panel

Air discharge

Power cord

ON/OFF button

Plasma filter

Air inlet

Air filter

Art Cool Mirror(Type 2)
Display panel LCD indicators 

Signal receiver

Front panel

Air discharge

ON/OFF button

Power cord

Plasma filter

Air inlet

Air filter

 


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Operating Instructions

10

Indoor Unit

Name and Function of Remote Controller (Optional)

Operating Instructions

• Remote Controller Model

Standard Type : PQRCUCA0

Simple Type

: PCRCUSZ0

Deluxe type

: PQRCUDS0

PQRCUDS0B
PQRCUDS0S 

1. Operation indication screen
2. Swirl button(Not Available)
3. 2ndF button
4. Timer set/cancel

Program/Week/Holiday
Hour/Min/SET/Clr/Ventilator

5. Set temperature button
6. ON/OFF button
7. Fan operation
8. Operation mode selection button
9. Fan speed button
10. Horizontal/Vertical air flow

direction button(option)

11. Room temperature
12. Plasma button
13. Time reset button
14. Operation lamp

Timer

Program

Hour

Cancel

2ndF

Week

Holiday

Set/Clr

Min

RESET

PLASMA

ZONE

1 2 3 4

Operation unit  No Func 

Humidify

JET
SLo

AUTO

AUTO SWING

OPERATION

FAN SPEED

Program set

SUB FUNCTION

SET TEMP

Room Temp

HI
MED
LO

Heater
Defrost
Filter

Preheat

Out door

Time

Timer

On
Set no. Time

Off

01

03

05

07

09

11

13

15

17

19

21

23

2ndF

1

2

5

6
7

8

9

10
11
12
13

3

4

14

 


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Operating Instructions

Owner’s Manual  11

ENGLISH

Cooling Operation

Auto Operation

Healthy Dehumidification Operation

Flip-up door
(opened)

Heating Operation

Signal transmitter

ON

OFF

CANCEL

AUTO CLEAN

SET

5

1

3

10

9

17

12

14

16

6

4

2
7

11

8

13

15

Operation Mode

• Cooling Model(

), Heat Pump Model(

)

Wireless Remote Controller(Optional)

1. Start/Stop Button

Operation starts when this button is pressed.

2. Operation Mode Selection Button

Used to select the operation mode.

3. Room Temperature Setting Buttons

Used to select the room temperature.

4. Indoor Fan Speed Selector

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

5. Jet Cool

Speed cooling/heating operates super high fan speed.

6. Chaos Swing Button

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

7. On/Off Timer Buttons

Used to set the time of starting and stopping operation.

8. Time Setting Button

Used to adjust the time. 

9. Timer Set/Cancel Button

Used to set the timer when the desired time is obtained
and to cancel the Timer operation. 

10. Sleep Mode Auto Button

Used to set Sleep Mode Auto operation. 

11. Air Circulation Button

Used to circulate the room air without cooling or heating.

12. Room Temperature Button

Used to set the desired horizontal airflow direction.

13. Plasma(optional)

Used to start or stop the plasma-purification function.

14. Horizontal Airflow Direction Control Button

(optional)
Used to set the desired horizontal airflow direction.

15. Reset Button

Initialize remote controller.

16. 2nd F Button

Used prior to using modes printed in blue at the bottom of buttons.

17. Auto Clean(optional)

Used to set Auto Clean mode.

of handling the Remote Controller
• Aim at the signal receptor on the wired remote controller so as to operate.
• The remote control signal can be received at a distance of up to about 7m.
• Be sure that there are no obstructions between the remote controller and the signal receptor.
• Do not drop or throw the remote controller.
• Do not place the remote controller in a location exposed to direct sunlight, or near the heating unit, or any other heat source.
• Block a strong light over the signal receptor with a curtain or etc. so as to prevent the abnormal operation. (ex:electronic quick start, ELBA,

inverter type fluorescent lamp)

• Remote Controller Model : PQWRHSF0(Heat pump)

PQWRCSF0(Cooling only)

 


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Maintenance and Service

12

Indoor Unit

Maintenance and Service

Before performing any maintenance, turn off the main power to the system.
Never use any of the followings:
• Water hotter than 40°C.

Could cause deformation and/or discoloration.

• Volatile substances.

Could damage the surfaces of the air conditioner.

Air Filters

The air filters behind the front panel / grill should be checked and cleaned once in
every 2 weeks or more often if necessary. To remove the filters see the self
explanatory diagrams for each model type. Clean the filters with a vacuum cleaner
or warm soapy water. If dirt is not easily removed, wash with a solution of
detergent in luke warm water. Dry well in shade after washing and reinstall the
filters back in place.

Plasma Filters

The plasma filters behind the air filter should be checked and cleaned once in every 3
months or more often if necessary. To remove the filters see the self explanatory
diagrams for each model type. Clean the filters with a vacuum cleaner. If it is dirty
wash it with water and dry well in shade an install back in place.

Deodorizer Filters

Remove the deodorizer filters behind the air filter and expose them in direct
sunlight for 2 hours. 
And then insert these filters into original position.

Gasoline

Powder

Removal of Filters

Two different methods to open the front panel based on types of air conditioner as below ; 
Type 1: 

Open the upside of the panel and lift it up as shown. The hooks of the panel will come off. Remove the
air filters. Then pull out the plasma filter

Type 2: 

Open the front panel as shown.
Then pull the filter tab slightly forward to remove the air filter.
After removing the air filter remove the plasma and deodorizer filter by slightly pulling forward.

After cleaning and drying well reinstall the filters in their original position.

Front panel

Panel hook

Plasma filter

Plasma filter

Front panel

Don't touch this plasma filter within 10 seconds after opening the inlet grille, it may cause an electric shock.

 


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Owner’s Manual  13

ENGLISH

Maintenance and Service

CAUTION

CAUTION

When the air conditioner is not going to be used for a long time.

Operation Tips

Helpful information

The air filters and your electiric bill.
If the air filters become clogged with dust, the
cooling capacity will drop, and 6% of the electricity
used to operate the air conditioner will be wasted.

When it is not going to be used for 
a long time.

When the air conditioner is to be used again.

Operate the air conditioner at the
following settings for 2 to 3 hours.
• Type of operation: Fan operation mode.
• This will dry out the internal mechanisms.

Turn off the breaker.

Turn off the breaker when the air conditioner
is not going to be used for a long time.

Dirt may collect and may cause a fire.

Clean the air filter and install it in the
indoor unit.
(Refer to page 12 for cleaning it.)

Check that the air inlet and outlet of the
indoor/outdoor unit are not blocked.

Check that the ground wire is
connected correctly. It may be connect
to the indoor unit side.

Do not overcool the room.

This is not good for the health
and wastes electricity.

Keep blinds or curtains

closed.

Do not let direct sunshine
enter the room when the air
conditioner is in operation.

Keep the room temperature

uniform.

Adjust the vertical and
horizontal airflow direction to
ensure a uniform temperature
in the room.

Make sure that the doors 

and windows are shut tight.

Avoid opening doors and
windows as much as possible
to keep the cool air in the
room.

Clean the air filter regularly.

Blockages in the air filter
reduce the airflow and lower
cooling and dehumidifying
effects. Clean at least once
every two weeks.

Ventilate the room

occasionally.

Since windows are kept
closed, it is a good idea to
open them and ventilate the
room now and then.

 


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Maintenance and Service

14

Indoor Unit

?

Check the following points before requesting repairs or service.... If the malfunction persist,
please contact your dealer.

Troubleshooting Tips! Save time and money!

• Have you made a

mistake in timer
operation?

• Has the fuse blown

or has the circuit
breaker been
tripped?

• Check that this is not

a damp smell exuded
by the walls, carpet,
furniture or cloth
items in the room.

• Condensation occurs

when the airflow from
the air conditioner
cools the warm room
air.

• This is the protector

of the mechanism.

• Wait about three

minutes and
operation will begin.

The air conditioner

does not operate.

The room has a

peculiar odor. 

It seems that

condensation is

leaking from the air

conditioner.

Air conditioner does

not operate for about

3 minutes when

restart.

Does not cool or heat

effectively.

The air conditioner

operation is noisy.

Crack sound is

heard.

Remote control

display is faint, or no

display at all.

• Is the air filter dirty?

See air filter cleaning
instructions.

• The room may have

been very hot when
the room air
conditioner was first
turned on. Allow time
for it to cool down.

• Has the temperature

been set incorrectly?

• Are the indoor unit's

air inlet or outlet vents
obstructed?

• For a noise that

sounds like water
flowing.

-This is the sound of

freon flowing inside
the air conditioner
unit.

• For a noise that

sounds like the
compressed air
releasing into
atmosphere.

-This is the sound of

the dehumidifying
water being
processed inside the
air conditioning unit.

• This sound is generated

by the expansion/
constriction of the front
panel, etc. due to
changes of
temperature.

• Cleaning the filter,

press the Timer button
and 

button of wired

remote controller at
the same time for 3
sec.

• Are the batteries

depleted?

• Are the batteries

inserted in the
opposite (+) and (-)
directions?

WATER RESISTANT: The outdoor side of this appliance is WATER RESISTANT.

The indoor side is not water resistant and should not be exposed to
excess water.

NOTICE

Filter sign lamp

(LED) is ON.

Before you call for service...