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LG Air Conditioner Owner's Manual

Made by: LG
Type: Owner's Manual
Category: Air Conditioner
Pages: 17
Size: 1.33 MB

 

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P/NO : MFL5719910

3

www.lg.com

OWNER’S MANUAL

AIR CONDITIONER 

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

TYPE : CEILING CASSETTE - 1WAY (ART TYPE)

ENGLISH

ITALIANO

ESPAÑOL

FRANCAIS

DEUTSCH

ΕΛΛΗΝΙΚΆ

PORTUGUÊS

NEDERLANDS

êìëëäàâüáõä

 


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Ceiling Cassette - 1Way Type Indoor Unit Ownerʼs 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

n

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.

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

Prior to Operation ..................7

Operating Instructions...........8

Maintenance and Service ....11

Before you Call for Service

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

2

Indoor Unit

 


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To prevent injury to the user or other people and property damage, the following instructions must be
followed.

n

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.

n

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

Be sure not to do.

Be sure to follow the instruction.

WARNING

n

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.

Ownerʼs Manual 

3

Safety Precautions   

ENGLISH

Safety Precautions

 


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Safety Precautions   

4

Indoor Unit

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.

n

Operation

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.

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.

 


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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.

Safety Precautions   

Ownerʼs Manual 

5

ENGLISH

n

Installation

CAUTION

n

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.

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.

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.

 


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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.

Safety Precautions   

6

Indoor Unit

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 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.
(Grill Type)

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.

 


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Ownerʼs Manual 

7

Prior to operation 

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 unitʼs 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

ENGLISH

 


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Operating Instructions

Operating Instructions

1

4

5

7

11

10

9

8

2

3

6

13

12

Please attach the inform label inside of the door.
Please choose proper language depend on your 
country.

14

15

8

Indoor Unit

Name and function of wired remote controller(Accessory)

※ Some functions may not be operated and displayed depending on the product type.

※ It will display strange value to the room temperature if wired remote controller is not connected.

Model : PQRCVSL0 (Black Color)

PQRCVSL0QW (White Color) 

1.  Operation indication screen

2.  Set temperature button

• It will set not room temperature but outlet air temperature.

3.  Fan speed button

• Fan Speed have 3 Steps.
• Middle and Low step is same

4.  ON/OFF button

5.  Opration mode selection button

6.  Wireless remote controller receiver

• Some products don't receive the wireless signals. 

7.  Air flow button

8.  Subfunction button

9.  Function setting button

10. Ventilation button

11. Reservation

12. Up,down,left,right button

• 

To check the indoor temperature, press
button.

13. Room temperature button

• Displays only the room temperature of the remote

controller perception.

• There is no control of room temperature.

• In case of  fresh air intake unit, displays only the

temperature around remote controller.

14. Setting/Cancel button

15. Exit button

 


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Operating Instructions

Name and Function of Wireless Remote Controller(Accessory)

Cooling mode

Auto mode or auto changeover

Dehumidification mode

Heating mode

Fan mode 

• Cooling model(  ), Heat pump model(  )

Operation Mode

PQWRCDF0 (Heat pump)
PQWRHDF0 (Cooling only)

13
14

15

16

1

8

9

10

11

12

2

3

4

5

6

7

1.  Plasma button(optional)

Used to start or stop the plasma-purification
function.

2.  Jet cool button

Speed cooling operates super high fan speed.

3.  Operation mode selection button

Used to select the operation mode.

4.  Function setting button

Used to set or clear auto clean or smart clean.

5.  LCD luminosity button(optional)

Used to adjust LCD luminosity

6.  Smart clean button(optional)

Used to start or stop smart clean.

7.  Clean button

Used to clear all timer.

8.  Room temperature setting button

Used to select the room temperature.

9.  On/Off button

Used to turn on/off the unit.

10.  Indoor fan speed selection button

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

11.  Auto swing button

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

12.  Horizontal airflow direction control

button(optional)

Used to set the desired horizontal airflow direction.

13.  Timer and time setting button

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

14.  Room temperature checking button

Used to check the room temperature.

15.  °C/°F switch button

Used to switch temperature reading from Celsius
to Fahrenheit.

16.  Reset button

Used to reset the remote controller.

Ownerʼs Manual 

9

ENGLISH

 


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Operating Instructions

Forced operation
(Tact switch)

Forced Operation

Auto Restart Function

Tips for Filter Sign LED (Grille Type)

Operation procedures when the remote control can't be used.
Press the tact switch (forced operation) for 2 seconds.
If you want to stop operation, press again the tact switch.
In case the power comes on again after power failure on the 
forced operation mode, the operating conditions are 
automatically set as follows:
During forced operation, the initial mode continues.

In case the power comes on again after a power failure, auto restarting operation is the function to operate
procedures automatically to the previous operating conditions.

1. Filter sign lamp (LED) is on.

2. If LED indicating filter sign lamp is on, clean the filter.

3. After cleaning the filter, press the timer button and 

button of wired remote controller at the same time for 3

seconds. Then filter sign LED is off.

Heat pump model

Cooling model

Room temperature

Room temperature

≥ set temperature -2°C

≥ set temperature -2°C

Operating mode

Cooling

Cooling

Heating

Indoor fan Speed

High

Set available

Set available

Setting temperature

22°C

Set available

Set available

10

Indoor Unit

 


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Maintenance and Service(Robot + Panel Type) 

Maintenance and Service

B enzene

SCOURING

CLBARGER

S IN

NER

Remote

 Contro

ller

TEMP

Wired remote 

controller

Air outlet

Air inlet

Front panel

Suction motor

Clean boy

Right cover

Panel, Case, and Remote Control

o

Turn the system off before cleaning. To clean, wipe with
a soft, dry cloth. Do not use bleach or abrasives.

Supply power must be disconnected 
before cleaning the indoor unit.

NOTICE

1. Remove right cover of front panel.

2. Push button and pull down.

3. Open the cap, dump out dust and then

wash clean boy.

4. After drying, push up clean boy until

clicking sound.

5. Reassemble right cover.

Clean boy

Please sweep clean boy every five years or it is required.

Before performing any maintenance, turn off the main power to the system.

CAUTION

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.

Handle

Button

Ownerʼs Manual 

11

ENGLISH

 


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Maintenance and Service

Maintenance and Service(Standard + Panel Type) 

Panel, Case, and Remote Control

o

Turn the system off before cleaning. To clean, wipe with a
soft, dry cloth. Do not use bleach or abrasives.

Supply power must be disconnected before
cleaning the indoor unit.

NOTICE

1. Remove air filters.

Take hold of the tab and pull slightly forward
to remove the filter.

When the air filter is to be removed, do not
touch the metal parts of the indoor unit. 
It may cause an injury.

2. Clean dirt from the air filter using a vacuum

cleaner or washing with water.

If dirt is conspicuous, wash with a neutral
detergent in lukewarm water.

If hot water (50°C or more) is used, it may
be deformed.

3. After washing with water, dry well in

the shade.

Do not expose the air filter to direct
sunlight or heat from a fire when drying it.

4. Install air filter.

CAUTION

Air Filter

The air filters behind the front grille should be checked and
cleaned once every 2 weeks or more often if neccessary.

Before performing any maintenance, turn off the main power to the system.

CAUTION

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.

Remote

 Contro

ller

TEMP

Wired remote 

controller

Air outlet

Air inlet

B enzene

SCOURING

CLBARGER

S IN

NER

Air filter

12

Indoor Unit

 


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Maintenance and Service

Maintenance and Service(Standard + Grille Type) 

B enzene

SCOURING

CLBARGER

S IN

NER

Remote

 Contro

ller

TEMP

Wired remote 

controller

Air inlet

Rack

Air filter

Air outlet

Grille, Case, and Remote Control

o

Turn the system off before cleaning. To clean, wipe with
a soft, dry cloth. Do not use bleach or abrasives.

Supply power must be disconnected 
before cleaning the indoor unit.

NOTICE

1. Remove air filters.

Take hold of the tab and pull slightly forward
to remove the filter.

When the air filter is to be removed, do not
touch the metal parts of the indoor unit. 
It may cause an injury.

2. Clean dirt from the air filter using a vacuum

cleaner or washing with water.

If dirt is conspicuous, wash with a neutral
detergent in lukewarm water.

If hot water (50°C or more) is used, it may
be deformed.

3. After washing with water, dry well in

the shade.

Do not expose the air filter to direct
sunlight or heat from a fire when drying it.

4. Install air filter.

CAUTION

Air Filter

The air filters behind the front grille should be checked and
cleaned once every 2 weeks or more often if neccessary.

Before performing any maintenance, turn off the main power to the system.

CAUTION

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.

TT chassis : 6EA Rack
TU chassis : 4EA Rack

Ownerʼs Manual 

13

ENGLISH

 


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Maintenance and Service

B enzene

SCOURING

CLBARGER

S IN

NER

Plasma filter

Air filter

Remote

 Contro

ller

TEMP

Wired remote 

controller

Air inlet

Rack

Air outlet

Grille, Case, and Remote Control

o

Turn the system off before cleaning. To clean, wipe with
a soft, dry cloth. Do not use bleach or abrasives.

Supply power must be disconnected 
before cleaning the indoor unit.

NOTICE

1. Remove air filters.

Take hold of the tab and pull slightly forward
to remove the filter.

When the air filter is to be removed, do not
touch the metal parts of the indoor unit. 
It may cause an injury.

2. Remove plasma filter.

Unscrew 2 screws from plasma filter.

3. Clean dirt from the air filter using a vacuum

cleaner or washing with water.

If dirt is conspicuous, wash with a neutral
detergent in lukewarm water.

If hot water (50°C or more) is used, it may
be deformed.

4. After washing with water, dry well in

the shade.

Do not expose the air filter to direct
sunlight or heat from a fire when drying it.

5. Install plasma filter and air filter.

CAUTION

Air Filter

The air filters behind the front grille should be checked and
cleaned once every 2 weeks or more often if neccessary.

Before performing any maintenance, turn off the main power to the system.

CAUTION

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.

TT chassis : 6EA Rack
TU chassis : 4EA Rack

14

Indoor Unit

Maintenance and Service(Plasma + Grille Type) 

 


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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.

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.

Ownerʼs Manual 

15

ENGLISH

 


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Maintenance and Service

Before you call for service...

?

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.

(Grill Type)

16

Indoor Unit

 


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