LG VM121CS Owner's Manual

OWNER’S MANUAL

AIR
CONDITIONER

ENGLISH ESPAÑOL

ENGLISH ESPAÑOL

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

TYPE : WALL MOUNTED INVERTER

www.lg.comP/NO : MFL68908206

2

TIPS FOR SAVING ENERGY

ENGLISH

TIPS FOR SAVING ENERGY

Here are some tips that will help you minimize the power consumption when you use the air
conditioner. You can use your air conditioner more efficiently by referring to the instructions
below:

• Do not cool excessively indoors. This may be harmful for your health and may consume more
electricity.

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

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

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

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

• Open windows regularly for ventilation as the indoor air quality may deteriorate if the air con­ditioner is used for many hours.

• Clean the air filter once every 2 weeks. Dust and impurities collected in the air filter may block
the air flow or weaken the cooling / dehumidifying functions.

For your records

Staple your receipt to this page in case you need it to prove the date of purchase or for warranty
purposes. Write the model number and the serial number here:

Model number :

Serial number :

You can find them on a label on the side of each unit.

Dealer’s name :

Date of purchase :

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.

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

WARNING: Fixed installations will incorporate disconnect means in accordance with installation

rules.

WARNING: This device will not be accessible to public.

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

installations.

SAFETY PRECAUTIONS

IMPORTANT SAFETY INSTRUCTIONS

READ ALL INSTRUCTIONS BEFORE USING THE APPLIANCE.

Always comply with the following precautions to avoid dangerous situations and ensure peak
performance of your product

WARNING

It can result in serious injury or death when the directions are ignored

CAUTION

It can result in minor injury or product damage when the directions are ignored

WARNING

• Installation or repairs made by unqualified persons can result in hazards to you and others.

• Appliance shall be installed in accordance with national wiring regulations.

• The information contained in the manual is intended for use by a qualified service technician
familiar with safety procedures and equipped with the proper tools and test instruments.

• Failure to carefully read and follow all instructions in this manual can result in equipment mal­function, property damage, personal injury and/or death.

Installation

• Use a standard circuit breaker and fuse conforming with the rating of the air conditioner. Fail­ure to do so may result in electric shock or product failure.

• Contact an authorized service center when you install or relocate the air conditioner. Failure to
do so may result in serious injury or product failure.

• Always use a power plug and socket with a ground terminal.Failure to do so may result in
electric shock or product failure

• Install the panel and the cover of the control box safely. Failure to do so may result in explo­sion or fire.

• Install a dedicated electric outlet and circuit breaker before you use the air conditioner. Failure
to do so may result in electric shock or product failure.

• Use a standard circuit breaker and fuse conforming with the rating of the air conditioner. Fail­ure to do so may result in electric shock or product failure.

• Do not modify or extend the power cable. If the power cable or cord has scratches or skin
peeled off or deteriorated then it must be replaced. It may result in fire or electric shock.

• Be cautious when you unpack or install the air conditioner. Failure to do so may result in seri­ous injury or product failure.

• Do not install the air conditioner on an unstable surface or where there may be a danger of it
falling. It may result in death, serious injury, or product failure.

• Use inflammable gas (nitrogen) to inspect leak and to purge air, using compressed air or flam­mable gas may cause fire or explosion.

!

!

!

3

ENGLISH

4

SAFETY PRECAUTIONS

ENGLISH

Installation

• Make sure to check if there is a refrigerant leak after you install or repair the air conditioner. Failure
to do so may result in product failure.

• Install the drain hose properly for smooth drainage of condensed water. Failure to do so may result
in product failure.

!

Operation

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

• Make sure that the power cord is not pulled or damaged while the air conditioner is operating. Fail-

• Do not place any objects on the power cord. It may result in electric shock or product failure.

• Do not turn on or off the air conditioner by plugging in or unplugging the power plug. It may result in

• Do not touch, operate or repair the air conditioner with wet hands. It may result in electric shock or

• Do not place a heater or other heating appliances near the power. It may result in fire, electric

• Do not allow water to run into the air conditioner. It may result in explosion or fire.

• Do not leave flammable substances such as gasoline, benzene and thinner near the air conditioner.

• Do not use the air conditioner for an extended period of time in a small place without ventilation.

• When there is a gas leak, ventilate sufficiently before using the air conditioner again. Failure to do so

• Unplug the power plug if there is a noise, smell or smoke coming from the air conditioner. Failure to

• Stop operating and close the window in strom or hurricane.If possible remove the product from the

• Do not touch the electrostatic filter after opening the front grille. Failure to do so may result in elec-

• Contact an authorized service center when the air conditioner is submerged into water due to flood-

• Be cautious water could not enter the product

• Make sure to ventilate sufficiently when this air conditioner and a heating appliance such as a heater

• Turn the main power off and unplug the power plug when you clean or repair the air conditioner.

• Unplug the power plug when the air conditioner is not used for an extended period of time. Failure

• Do not place any objects on the air conditioner. It may result in product failure.

• For inner cleaning, contact an Authorized Service Center or a dealer. Do not use harsh detergent

• This appliance is not intended for use by persons (including children) with reduced physical, sensory

• Children should be supervised to ensure that they do not play with the appliance.

window has been left open. Failure to do so may result in product failure.

ure to do so may result in fire, electric shock, or product failure.

fire or electric shock.

product failure.

shock, or product failure.

It may result in explosion or fire.

Ventilate the place regularly. Failure to do so may result in explosion or fire.

may result in explosion or fire.

do so may result in explosion or fire.

window before hurricane arrives

tric shock or product failure.

ing. Failure to do so may result in explosion or fire.

are used simultaneously. Failure to do so may result in fire, serious injury, or product failure.

Failure to do so may result in death, serious injury, or product failure.

to do so may result in product failure.

that causes corrosion or damage on the unit. Harsh detergent may also cause failure of product, fire,
or electronic shock.

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.

CAUTION

SAFETY PRECAUTIONS

• Keep level even when installing the product.

• Install the air conditioner where the noise from the outdoor unit or the exhaust gas will not incon­venience the neighbors. Failure to do so may result in conflict between neighbors.

• When transporting the equipment, there should be at least 2 or more people, or a forklift. It may re­sult in serious injury.

• Do not install the air conditioner where it will be exposed to sea wind (salt spray) directly. It may re­sult in product failure.

Operation

• Do not expose people, animals or plants to the cold or hot wind from the air conditioner. It may re­sult in serious injury.

• 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. It may result in death, fire or electric
shock.

• Do not block the inlet or outlet of air flow. It may result in explosion or product failure.

• Do not use strong cleaning agents or solvents when you clean the air conditioner, or spray water.
Use a smooth cloth. It may result in serious injury or product failure.

• Never touch the metal parts of the air conditioner when you remove the air filter. It may result in se­rious injury or product failure.

• Do not place any objects on the air conditioner. It may result in product failure.

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

• Do not insert hands or other objects through the air inlet or outlet while the air conditioner is operat­ing. It may result in electric shock.

• Do not drink the water drained from the air conditioner. It may result in serious health complications.

• Use a sturdy stool or ladder when you clean, maintain or repair the air conditioner at a height. Failure
to do so may result in serious injury or product failure.

• Do not mix the batteries for the remote control with other types of batteries or mix new batteries
with used batteries. Failure to do so may result in product failure.

• Do not recharge or disassemble the batteries. Failure to do so may result in explosion, fire or serious
injury.

• Stop using the remote control if there is a battery fluid leak. If your cloth or skin is exposed to the
battery fluid from a leak, wash it off with clean water. Failure to do so may result in serious injury.

• If you swallow the battery fluid from a leak, wash out the inside of your mouth thoroughly and then
consult a doctor. Failure to do so may result in serious health complications.

WARNING

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

• Fixed installations will incorporate disconnect means in accordance with installation rules.

• This device will not be accessible to public.

• Install the device in accordance to national codes for electrical installations.

!

5

ENGLISH

TABLE OF CONTENTS

2

TIPS FOR SAVING ENERGY

3 IMPORTANT SAFETY

INSTRUCTIONS

7 BEFORE USE

7 Components

8 Using the remote control

9 - Inserting batteries

9 - Installing the remote control holder

BASIC FUNCTIONS

Cooling your room

Heating your room

Removing humidity

Airing your room

Adjusting the fan speed

Adjusting the air flow direction

ADVANCED FUNCTIONS

Changing room temperature quickly

Remove room moisture quickly

Indoor air purification

- Auto Clean operation

Auto operation

Auto Changeover operation

Energy saving cooling mode

Display screen brightness

Operating the air conditioner without the
remote control

Restarting the air conditioner
automatically

Comfort Sleep Mode

MAINTENANCE

Cleaning the air filter

Cleaning the 3M Filter

TROUBLESHOOTING

Self-diagnosis function

Before requesting service

TABLE OF CONTENTS

6

ENGLISH

11 Setting the timer

11 - Setting the current time

12 - Turning on the air conditioner

automatically at a set time

12 - Turning off the air conditioner

automatically at a set time

12 - Canceling the timer setting

12 Setting sleep mode

Air inlet vents

Air outlet

vents

Base plate

BEFORE USE

Components

Outdoor unit

Front grille

Air filter

Air inlet

On/ Off button
Signal receiver

Operation lamp

Air outlet

Air deflector
(Vertical louver & Horizontal vane)

3M Filter (Optional)

NOTE

!

7

BEFORE USE

ENGLISH

Indoor unit

Air inlet vents

Air outlet vents

Base plate

Connection
wire

Drain hose

Coolant piping

Air inlet vents

Air outlet

vents

Coolant
piping

Drain hose

Connection
wire

Base plate

Coolant
piping

Drain hose

Connection
wire

* Some functions may not be supported, depending on the

model.

9

BEFORE USE

NOTE

!

If the display screen of the remote control
starts to fade, replace the batteries.

NOTE

!

• The remote control may operate other
electronic devices if pointed towards
them. Make sure to point the remote
control towards the signal receiver of
the air conditioner.

• For proper operation, use a soft cloth to
clean the signal transmitter and receiver.

Operating method

ENGLISH

Inserting batteries

Insert batteries before using the remote
control. The battery type used is AAA (1.5 V)

1 Remove the battery cover.

2 Insert the new batteries and make sure

that the + and - terminals of the batteries
are installed correctly.

3 Reattach the battery cover.

2 Fix the holder by fastening the 2 screws

firmly with a screwdriver.

3 Slide the remote control into the holder.

Point the remote control towards the signal
receiver at the bottom of the air conditioner to
operate it.

Installing the remote control holder

Install the holder where there is no direct sun­light to protect the remote control.

1 Choose a safe and easily-accessible place.

BASIC FUNCTIONS

10

ENGLISH

BASIC FUNCTIONS

Cooling your room

(Cooling operation)

1 Press | to turn on the power.
2 Press

q

repeatedly to select the cooling

operation.

- A is displayed on the display screen.

3 Press G or H to set the desired tempera-

ture.

- The temperature range is 18°C(64°F) –
30°C(86°F)

Heating your room

(Heating operation)

1 Press | to turn on the power.
2 Press

q

repeatedly to select the heating

operation.

- B is displayed on the display screen.

3 Press G or H to set the desired tempera-

ture.

- The temperature range is 16°C(60°F) –
30°C(86°F)

Removing humidity

(Dehumidifying operation)

This mode removes excess moisture from an
environment with high humidity or in the rainy
season, in order to prevent mold from setting
in. This mode adjusts the room temperature
and the fan speed automatically to maintain
the optimal level of humidity.

1 Press | to turn on the power.
2 Press

q

repeatedly to select the dehu-

midifying operation.

- D is displayed on the display screen.

NOTE

!

• In this mode you cannot adjust the room
temperature, as it is adjusted automati­cally. Also, the room temperature is not
displayed on the display screen.

NOTE

!

Cooling-only models do not support this
function.

When setting the timer, current time and
ON icon are displayed on the display
screen indicating that the desired time is
set.

When setting the timer, current time and
OFF icon are displayed on the display
screen indicating that the desired time is
set.