LG F12MT Manuale utente

www.lg.com

OWNER’S MANUAL

AIR CONDITIONER

Read this owner’s manual thoroughly before operating the

appliance and keep it handy for reference at all times.

TYPE: WALL MOUNTED

EN ENGLISH

IT ITALIANO

P/NO: 5401521219

rev.:

TABLE OF CONTENTS

This manual may contain images or content

different from the model you purchased.

This manual is subject to revision by the

manufacturer.

SAFETY INSTRUCTIONS .................................................3

IMPORTANT SAFETY INSTRUCTIONS ...................................................3

Notes for Operation ...................................................................................8

OPERATION ......................................................................9

Parts and Functions ...................................................................................9

Wireless Remote Control .........................................................................10

Restarting the Air Conditioner Automatically ...........................................14

Using the Mode Function .........................................................................14

Using the Jet Mode Function ...................................................................16

Using the Fan Speed Function ................................................................17

Using the Air Flow Direction Function ......................................................17

Setting the On/Off Timer ..........................................................................18

Using the Sleep Function ........................................................................19

Using the Light Off Function ....................................................................19

Using the Comfort Air Function ................................................................19

Using the Energy Control Function ..........................................................20

Using Special Functions ..........................................................................21

SMART FUNCTIONS .......................................................23

Using LG ThinQ Application ....................................................................23

MAINTENANCE ...............................................................26

Clean the Air Filter ...................................................................................27

Clean the Micro Dust Filter ......................................................................27

Clean the Ionizer .....................................................................................28

TROUBLESHOOTING .....................................................29

3

SAFETY INSTRUCTIONS

EN

The following safety guidelines are intended to prevent unforeseen risks or

damage from unsafe or incorrect operation of the appliance.

The guidelines are separated into ‘WARNING’ and ‘CAUTION’ as described

below.

This symbol is displayed to indicate matters and operations that can

cause risk. Read the part with this symbol carefully and follow the

instructions in order to avoid risk.

WARNING

This indicates that the failure to follow the instructions can cause serious

injury or death.

CAUTION

This indicates that the failure to follow the instructions can cause the

minor injury or damage to the product.

The following symbols are displayed on indoor and outdoor units.

This symbol indicates that this appliance uses a flammable refrigerant.

If the refrigerant is leaked and exposure to an external ignition source,

there is a risk of fire.

This symbol indicates that the Operation Manual should be read

carefully.

This symbol indicates that a service personnel should be handling this

equipment with reference to the Installation Manual.

This symbol indicates that information is available such as the

Operating Manual or Installation Manual.

IMPORTANT SAFETY INSTRUCTIONS

WARNING

To reduce the risk of explosion, fire, death, electric shock, injury or

scalding to persons when using this product, follow basic precautions,

including the following:

Children in the Household

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 supervision 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.

4

EN

For use in Europe:

This appliance can be used by children aged from 8 years and above and persons

with reduced physical, sensory or mental capabilities or lack of experience and

knowledge if they have been given supervision or instruction concerning use of the

appliance in a safe way and understand the hazards involved. Children shall not

play with the appliance. Cleaning and user maintenance shall not be made by

children without supervision.

Installation

xDo not install the air conditioner on an unstable surface or in a place where there

is danger of it falling.

xContact an authorized service center when installing or relocating the air

conditioner.

xInstall the panel and the cover of the control box safely.

xDo not install the air conditioner in a place where flammable liquids or gases such

as gasoline, propane, paint thinner, etc., are stored.

xMake sure that the pipe and the power cable connecting the indoor and outdoor

units are not pulled too tight when installing the air conditioner.

xUse standard circuit breaker and fuse that conform to the rating of the air

conditioner.

xDo not input air or gas into the system except with the specific refrigerant.

xUse non-flammable gas (nitrogen) to check for leak and to purge air; using

compressed air or flammable gas may cause fire or explosion.

xThe 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.

xInstall dedicated electric outlet and circuit breaker before using the air conditioner.

xDo not connect the ground wire to a gas pipe, a lightning rod, or a telephone

ground wire.

xKeep any required ventilation openings clear of obstruction.

xMeans for disconnection must be incorporated in the fixed wiring in accordance

with the wiring rules.

Operation

xBe sure to use only those parts listed in the service parts list. Never attempt to

modify the equipment.

xMake sure that children do not climb on or hit the outdoor unit.

5

EN

xDispose of the batteries in a place where there is no danger of fire.

xUse only the refrigerant specified on the air conditioner label.

xCut off the power supply if there is any noise, smell, or smoke coming from the air

conditioner.

xDo not leave flammable substances such as gasoline, benzene, or thinner near the

air conditioner.

xContact an authorized service center when the air conditioner is submerged by

flood waters.

xDo not use the air conditioner for an extended period of time in a small place

without proper ventilation.

xIn the event of a gas leak (such as Freon, propane gas, LP gas, etc.) ventilate

sufficiently before using the air conditioner again.

xTo clean the interior, contact an authorized service center or dealer. Using harsh

detergents may cause corrosion or damage to the unit.

xBe sure to ventilate sufficiently when the air conditioner and a heating appliance

such as a heater are used simultaneously.

xDo not block the inlet or outlet of air flow.

xDo not insert hands or other objects through the air inlet or outlet while the air

conditioner is operating.

xMake sure that the power cable is neither dirty, loose, nor broken.

xNever touch, operate, or repair the air conditioner with wet hands.

xDo not place any objects on the power cable.

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

xDo not modify or extend the power cable. Scratches or peeling insulation on the

power cables may result in fire or electric shock, and should be replaced.

xCut off the power supply immediately in the event of a blackout or a thunderstorm.

xTake care to ensure that power cable could not be pulled out or damaged during

operation.

xDo not touch refrigerant pipe, water pipe and any internal parts while the unit is

operating or immediately after operation.

Maintenance

xBefore cleaning or performing maintenance, disconnect the power supply and wait

until the fan stops.

xDo not clean the appliance by spraying water directly onto the product.

6

EN

Technical Safety

xInstallation or repairs made by unauthorized persons can pose hazards to you and

others.

xAny person who is involved with working on or breaking into a refrigerant circuit

should hold a current valid certificate from an industry-accredited assessment

authority, which authorizes their competence to handle refrigerants safely in

accordance with an industry recognized assessment specification.

xServicing shall only be performed as recommended by the equipment

manufacturer. Maintenance and repair requiring the assistance of other skilled

personnel shall be carried out under the supervision of the person competent in

the use of flammable refrigerants.

xThe information contained in the manual is intended for use by a qualified service

technician who is familiar with the safety procedures and equipped with the proper

tools and test instruments.

xFailure to read and follow all instructions in this manual can result in equipment

malfunction, property damage, personal injury and/or death.

xThe appliance shall be installed in accordance with national wiring regulations.

xWhen the power cord is to be replaced, the replacement work shall be performed

by authorized personnel using only genuine replacement parts.

xThis appliance must be properly grounded to minimize risk of electric shock.

xDo not cut or remove the grounding prong from the power plug.

xAttaching the earth wire to the power outlet cover screw does not ground the

appliance unless the cover screw is metal, uninsulated, and the power outlet is

grounded through house wiring.

xIf you have any doubt whether the air conditioner is properly grounded, have the

power outlet and circuit checked by a qualified electrician.

xThe refrigerant and insulation blowing gas used in the appliance require special

disposal procedures. Consult a service agent or a similarly qualified person before

disposing of them.

xIf the supply cord is damaged, it must be replaced by the manufacturer, its service

agent or similarly qualified person in order to avoid a hazard.

xThe appliance shall be stored in a well-ventilated area where the room size

corresponds to the room area as specified for operation.

xThe appliance shall be stored in a room without continuously operating open

flames (for example an operating gas appliance) and ignition sources (for example

an operating electric heater).

xThe appliance shall be stored so as to prevent mechanical damage from occurring.

7

EN

CAUTION

To reduce the risk of minor injury to persons, malfunction, or damage to

the product or property when using this product, follow basic precautions,

including the following:

Installation

xDo not install the air conditioner in an area where it is directly exposed to sea wind

(salt spray).

xInstall the drain hose properly for the smooth drainage of water condensation.

xExercise caution when unpacking or installing the air conditioner.

xDo not touch the leaking refrigerant during installation or repair.

xTransport the air conditioner with two or more people or use a forklift.

xInstall the outdoor unit such that it is protected from direct sunlight. Do not place

the indoor unit in a place where it is directly exposed to sunlight via the windows.

xSafely dispose of packing materials such as screws, nails or batteries using proper

packaging after installation or repair.

xInstall the air conditioner in a place where the noise from the outdoor unit or the

exhaust fumes will not inconvenience the neighbors. Failure to do so may result in

conflict with the neighbors.

Operation

xRemove the batteries if the remote control is not to be used for an extended period

of time.

xMake sure that the filter is installed before operating the air conditioner.

xBe sure to check if there is a refrigerant leak after installing or repairing the air

conditioner.

xDo not place any object on the air conditioner.

xNever mix different types of batteries, or old and new batteries for the remote

control.

xDo not let the air conditioner run for a long time when humidity is very high or

when a door or a window has been left open.

8

EN

xStop using the remote control if there is a fluid leak in the battery. If your clothes or

skin are exposed to the leaking battery fluid, wash off with clean water.

xDo not expose people, animals, or plants to the cold or hot wind from the air

conditioner for extended periods of time.

xIf the leaking battery fluid has been swallowed, rinse the inside of the mouth

thoroughly and consult a doctor.

xDo not drink the water drained from the air conditioner.

xDo not use the product for special purposes, such as preserving foods, works of

art, and etc. It is an air conditioner for consumer purposes, not a precision

refrigeration system. There is risk of damage or loss of property.

xDo not recharge or disassemble the batteries.

Maintenance

xNever touch the metal parts of the air conditioner when removing the air filter.

xUse a sturdy stool or ladder when cleaning, maintaining, or repairing the air

conditioner at a height.

xNever use strong cleaning agents or solvents when cleaning the air conditioner or

spray water. Use a smooth cloth.

Notes for Operation

Suggestion for Energy Saving

x Do not over-cool the space. This may be harmful for your health and may consume more electricity.

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

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

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

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

x Open windows regularly for ventilation. The indoor air quality may deteriorate if the air conditioner is used for

long durations.

x Clean the air filter once every 2 weeks. Dust and impurities collected in the air filter may block the air flow or

reduce the unit performance.

9

OPERATION

EN

Parts and Functions

Indoor Unit Outdoor Unit

1

2

3

4

5

6

7

8

9

10

1

2

3

4

5

6

On/Off Button

Signal Receiver

Operation Lamp

Ionizer

Air Deflector (Vertical Louver)

Air Deflector (Horizontal Vane)

Air Outlet

Micro Dust Filter

Air Filter

Front Panel

Refrigerant Pipes

Drain Hose

Connection Wire

Mounting Feet

Air Outlet Vents

Air Intake Vents

Indoor Unit Display

Set-Point / Room Temperature

On/Off

Wi-Fi

Defrost / Pre-Heat Operation

Timer

10

EN

Wireless Remote Control

Inserting Batteries

If the display screen of the remote control begins to

fade, replace the batteries. Insert AAA (1.5 V)

batteries before using the remote control.

1

Remove the battery cover.

2

Insert the new batteries and make sure that the

+ and - terminals of the batteries are installed

correctly.

Installing the Remote Control Holder

To protect the remote control, install the holder

where there is no direct sunlight.

1

Choose a safe and easily accessible location.

2

Fix the holder by fastening 2 screws firmly with a

screwdriver.

Operating Method

Point the remote control towards the signal receiver

at the right side of the air conditioner to operate it.

NOTE

x The remote control may operate other electronic

devices if it is directed towards them. Make sure to

point the remote control towards the air conditioner

signal receiver.

x For proper operation, use a soft cloth to clean the

signal transmitter and receiver.

x In case of a function not provided in the product,

no buzzer sound occurs from the product when a

button for such function on the remote control is

pressed except for Air Flow Direction (

SWING

), Air

Purification function (

).

11

EN

Setting the Current Time

1

Insert batteries.

x The icon below blinks at the bottom of the

display screen.

2

Press or button to select the minutes.

3

Press SET/CANCEL button to finish.

NOTE

x The On/Off Timer is available after setting the

current time.

Using the °C/°F Conversion Function

This function changes unit between °C and °F

x Press and hold

SWING

button about 5 seconds.

Operating the Air Conditioner

without the Remote Control

You can use the ON/OFF button of the indoor unit to

operate the air conditioner when the remote control

is unavailable.

1

Open the front panel.

x Lift up both sides of the panel slightly.

2

Press the ON/OFF button.

3

Close the front panel as soon as you press the

ON/OFF button.

x Lift down both sides of the panel slightly.

x For cooling and heating models, the operation

mode changes, depending on the room

temperature.

Room Temp. Set Temp.

Operation

Mode

Below 21°C 24°C

Heating

Operation

Above 21°C and

below 24°C

23°C

Dehumidifying

Operation

Above 24°C 22°C

Cooling

Operation

x For cooling-only models, the temperature is set

to 22 °C

12

EN

Using Wireless Remote Control

You can operate the air conditioner more conveniently with the remote control.

1

2

RESET

Button

Display

Screen

Description

- To turn on/off the air conditioner.

To adjust the desired room temperature in

cooling, heating or auto changeover mode.

MODE

To select the cooling mode. (P.14)

To select the heating mode. (P.15)

To select the dehumidification mode. (P.15)

To select the fan mode. (P.15)

To select the auto changeover/auto

operation mode. (P.16)

JET

MODE

To change room temperature quickly.

(P.16)

FAN

SPEED

To adjust the fan speed. (P.17)

SWING

To adjust the air flow direction vertically or

horizontally. (P.17)

TIMER

To turn on/off air conditioner automatically

at desired time. (P.18)

SET/

CANCEL

-

To set/cancel the special functions and

timer.

CANCEL

- To cancel the timer settings. (P.18)

- To adjust time.

13

EN

1

2

RESET

Button

Display

Screen

Description

LIGHT

OFF

-

To set the brightness of the display on the

indoor unit. (P.19)

ROOM

TEMP

To display the room temperature.

&ļ)>V@

To change unit between °C and °F (P.11)

COMFORT

AIR

To adjust the air flow to deflect wind. (P.19)

ENERGY

CTRL

To bring the effect of the power saving.

(P.20)

DIAGNOSIS

>V@

-

To conveniently check maintenance

information of a product. (P.25)

FUNC.

The Ion generator uses millions of ions to

help improve indoor air quality. (P.21)

To reduce noise from outdoor units. (P.22)

To maintain a minimum room temperature

and prevent objects in the room from

freezing. (P.22)

To remove moisture generated inside the

indoor unit. (P.22)

RESET - To initialize the remote control settings.

NOTE

x Press the SET/CANCEL button to operate the selected FUNC.

14

EN

Restarting the Air

Conditioner Automatically

When the air conditioner is turned on again after a

power failure, this function restores the previous

settings.

Disabling Auto Restart

1

Open the front panel.

x Lift up both sides of the panel slightly.

2

Press the ON/OFF button and hold it for 6

seconds, then the unit will beep twice and the

lamp will blink twice 4 times.

x To re-enable the function, press the ON/OFF

button and hold it for 6 seconds. The unit will

beep twice and the lamp will blink 4 times.

NOTE

x The feature may be changed according to the type

of model.

x If you press and hold the ON/OFF button for 3 – 5

seconds, instead of 6 seconds, the unit will switch

to the test operation. In the test operation, the unit

blows out strong cooling air for 18 minutes and

then returns to factory default settings.

Using the Mode Function

This function allows you to select the desired

function.

Cooling & Heating Model

Cooling Mode

Auto Changeover Mode

Dehumidification Mode

Heating Mode

Fan Mode

Cooling Mode

1

Turn the appliance on.

2

Press MODE button repeatedly to select the

Cooling Mode.

x

is displayed on the display screen.

3

Press or button to set the desired

temperature.

15

EN

Heating Mode

1

Turn the appliance on.

2

Press MODE button repeatedly to select the

Heating Mode.

x

is displayed on the display screen.

3

Press or button to set the desired

temperature.

NOTE

x

will be displayed on the indoor unit when

defrosting is operating.

x Furthermore, this indication will be displayed on the

indoor unit:

When preheating is operating.

When the room temperature has been reached to

the set temperature.

Dehumidification Mode

This mode removes excess moisture from a highly

humid environment or during the rainy season, in

order to prevent mildew from setting in. This mode

adjusts the room temperature and the fan speed

automatically to maintain the optimal level of

humidity.

1

Turn the appliance on.

2

Press MODE button repeatedly to select the

Dehumidification Mode.

x

is displayed on the display screen.

NOTE

x In this mode you cannot adjust the room

temperature, it is adjusted automatically.

x The room temperature is not displayed on the

remote control.

Fan Mode

This mode only circulates the indoor air without

changing the room temperature.

1

Turn the appliance on.

2

Press MODE button repeatedly to select the Fan

Mode.

x

is displayed on the display screen.

3

Press FAN SPEED button to adjust the fan

speed.

16

EN

Auto Changeover Mode

This mode changes the mode automatically to

maintain the set temperature at ±2 °C

1

Turn the appliance on.

2

Press MODE button repeatedly to select the Auto

Changeover Mode.

x

is displayed on the display screen.

3

Press or button to set the desired

temperature.

4

Press FAN SPEED button to adjust the fan

speed.

Using the Jet Mode Function

Changing Room Temperature

Quickly

This function allows you to cool indoor air quickly

during the summer or warm it quickly during winter.

x Cooling & Heating model : The Jet Mode function

is available with Cooling, Heating and

Dehumidification Mode.

1

Turn the appliance on.

2

Press MODE button repeatedly to select the

desired mode.

3

Press JET MODE button.

x

is displayed on the display screen.

NOTE

x In Jet Cooling Mode, strong air blows out for 30

minutes.

x After 30 minutes later, setting temperature is

maintaining 18 °C

If you want to change the temperature, Press

or

button to set the desired temperature.

x In Jet Heating Mode, strong air blows out for 30

minutes.

x After 30 minutes later, setting temperature is

maintaining 30 °C

If you want to change the temperature, Press

or

button to set the desired temperature.

17

EN

Using the Fan Speed

Function

Adjusting the Fan Speed

x Press FAN SPEED button repeatedly to adjust the

fan speed.

Display Screen Speed

High

Medium - High

Medium

Medium - Low

Low

- Natural Wind

NOTE

x The fan speed of Natural Wind adjusts

automatically.

ĺ ĺ

x The fan speed icons are displayed on some indoor

units.

ĺ ĺ ĺ ĺ

x Indoor unit display is displayed only 5 seconds and

return to the setting temperature on some models.

Using the Air Flow Direction

Function

This function adjusts the direction of the air flow

vertically (horizontally).

x Press

SWING

(

SWING

) button repeatedly and select the

desired direction.

Select

( ) to adjust the direction of the air

flow automatically.

NOTE

x Adjusting the air flow direction horizontally may not

be supported, depending on the model.

x Adjusting the air deflector arbitrarily may cause

product failure.

x If you restart the air conditioner, it starts to operate

with the previously set direction of air flow, so the

air deflector may not match the icon displayed on

the remote control. When this occurs, press

SWING

or

SWING

button to adjust the direction of the air flow

again.

x This function may operate differently from the

remote control display.

18

EN

Setting the On/Off Timer

This function sets the air conditioner to turn on/off

automatically at desired time.

On/Off Timer can be set together.

Setting the On Timer

1

Press

TIMER

button repeatedly.

x The icon below blinks at the bottom of the

display screen.

2

Press or button to select the minutes.

3

Press SET/CANCEL button to finish.

x After setting the timer, current time and

icon

are displayed on the display screen indicating

that the desired time is set.

Canceling the On Timer

1

Press

TIMER

button repeatedly.

x The icon below blinks at the bottom of the

display screen.

2

Press SET/CANCEL button to cancel the setting.

Setting the Off Timer

1

Press

TIMER

button repeatedly.

x The icon below blinks at the bottom of the

display screen.

2

Press or button to select the minutes.

3

Press SET/CANCEL button to finish.

x After setting the timer, current time and

icon

are displayed on the display screen indicating

that the desired time is set.

NOTE

x This function is disabled when you set Simple

Timer.

Canceling the Off Timer

1

Press

TIMER

button repeatedly.

x The icon below blinks at the bottom of the

display screen.

2

Press SET/CANCEL button to cancel the setting.

Canceling the Timer Setting

x Press

CANCEL

button to cancel all timer settings.

19

EN

Using the Sleep Function

This function turns off the air conditioner

automatically when you go to sleep.

1

Turn the appliance on.

2

Press

TIMER

button repeatedly.

x The icon below blinks at the bottom of the

display screen.

3

Press or button to select the hour (up to

7 hours).

4

Press SET/CANCEL button to finish.

x

is displayed on the display screen.

NOTE

x

is displayed on some indoor units.

x Indoor unit display is displayed from 1H to 7H

which is displayed only 5 seconds and then return

to the setting temperature.

x In the Cooling and Dehumidification Mode, the

temperature increases by 1 °C after 30 minutes

and additional 1 °C after another 30 minutes for a

more comfortable sleep.

x The temperature increases up to 2 °C from the

preset temperature.

x Although the remark for fan speed on the display

screen may be changed, the fan speed is adjusted

automatically.

Using the Light Off Function

Display Screen Brightness

You can set the brightness of the indoor unit display

screen.

x Press LIGHT OFF button.

NOTE

x Turn on/off the Display screen.

Using the Comfort Air

Function

Comfort Vane Operation

This function conveniently sets the vane to a preset

position to deflect the supply air away from blowing

directly onto the occupants in the room.

1

Turn the appliance on.

2

Press COMFORT AIR button repeatedly and

select the desired direction.

x

or is displayed on the display screen.

NOTE

x

or is displayed on some indoor units.

x This function is disabled when you press MODE or

JET MODE button.

x This function is disabled and auto swing of vertical

direction is set up when you press

SWING

button.

x When this function is off, the horizontal vane

operates automatically depending on the set mode.

20

EN

Using the Energy Control

Function

1

Turn the appliance on.

2

Press ENERGY CTRL button.

x Press ENERGY CTRL button repeatedly to

select each step.

1 step 2 step 3 step

NOTE

x 1 step : The power Input is decreased by 20 %

compared to rated power input.



is displayed on the display screen.

x 2 step : The power Input is decreased by 40 %

compared to rated power input.



is displayed on the display screen.

x 3 step : The power Input is decreased by 60 %

compared to rated power input.



is displayed on the display screen.

x This function is available with Cooling Mode.

x Capacity may decrease when Energy Control

mode is selected.

x Desired temperature is displayed about 5 seconds

if you press FAN SPEED,

or button.

x Room temperature is displayed about 5 seconds if

you press ROOM TEMP button.

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