Please read this manual carefully before operating
your set and retain it for future reference.
www.lg.com
TYPE : CEILING CONCEALED DUCT
P/NO : MFL67870402
ITALIANO ESPAÑOL
FRANÇAIS
DEUTSCH
ΕΛΛΗΝΙΚΆ
ČEŠTINA
NEDERLANDS
POLSKI
LIMBA ROMÂNĂ
ENGLISH
PORTUGUESE
MAGYAR
БЪЛГАРСKN
SRPSKI
HRVATSKI
SVENDKA
NORSKSUOMI
DANSK
2 Indoor Unit
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
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 ..................6
Product Introduction..............7
Operating Instructions.........10
Maintenance and Service ....22
Before you Call
for Service ..........................24
Safety Precautions
Owner’s Manual 3
ENGLISH
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.
Do not modify or extend the
power cable.
• There is risk of fire or electric
shock.
Do not install, remove, or reinstall 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.
4 Indoor Unit
Safety Precautions
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.
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.
■ 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.
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.
Owner’s Manual 5
ENGLISH
Safety Precautions
■ Installation
CAUTION
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.
■ Operation
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
.
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.
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.
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.
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.
6 Indoor Unit
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 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
Owner’s Manual 7
ENGLISH
Product Introduction
Product Introduction
1: Indoor unit
2: Outdoor unit
3: Remote controller
4: Inlet air
5: Discharge air
6: Refrigerant piping, connection
electric wire
7: Drain pipe
8: Ground wire
wire to ground outdoor unit to
prevent electrical shocks.
If your installation has a customized
control system, ask your LG dealer for
the operation that corresponds to your
system.
1: Unit with remote controller
2: Unit without remote controller (when
used as simultaneous operation)
2
8
4
5
Remote
Controller
3
Air intake
vents
1
Air outlet
vents
6
7
Pair system or Simultaneous operation system
Multi system
Name and function of parts
What to do before operation
Product Introduction
8 Indoor Unit
Wired Remote Controller
❈ Display temperature can be different from actual room temperature if the remote controller is installed at the
place where sun-rays are falling directly or the place nearby heat source.
❈ The actual product can be different from above contents depending upon model type.
❈ When using simultaneous operation system, whenever press remote controller button, system will
approximately operate after 1~2 minutes.
NOTE
OPERATION INDICATION
SCREEN
SET TEMPERATURE BUTTON
FAN SPEED BUTTON
ON/OFF BUTTON
OPRATION MODE SELECTION
BUTTON
WIRELESS REMOTE
CONTROLLER RECEIVER
• Some products don't receive the
wireless signals.
AIR FLOW BUTTON
SUBFUNCTION BUTTON
FUNCTION SETTING BUTTON
VENTILATION BUTTON
RESERVATION
UP,DOWN,LEFT,RIGHT BUTTON
• To check the indoor temperature,
press button.
ROOM TEMPERATURE BUTTON
SETTING/CANCEL BUTTON
EXIT BUTTON
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
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
❊ Some functions may not be operated and displayed depending on the product type.
Product Introduction
Owner’s Manual 9
ENGLISH
This air-conditioner is equipped with wired remote controller basically. But if you want to be available
with wireless remote controller, you pay for it.
Wireless Remote Controller (Accessory)
CAUTION
• Aim at the signal receiver 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)
❈
For more details refer to the Wireless Remote Control Accessory manual.
❈
The actual product can be different from above contents depending upon model type.
❈
The wireless remote controller does not operate When using simultaneous operation system.
NOTE
PQWRHQ0FDB
Operating instructions
10 Indoor Unit
Standard Operation - Standard Cooling
Standard Operation - Heating Mode
Operating instructions
❈ Setting Temp Range : 18˚C~30˚C (64˚F~86˚F)
It cools the room by comfortable and clean wind.
It supplies warm wind to the indoor
Press button to turn on the
indoor.
1
Press button to select
Heating mode.
(To check the indoor temperature,
press the room temperature button.)
2
Adjust the desired temperature
by pressing buttons.
When setting the desired
temperature lower than room
temperature, there is only
ventilation wind.
3
• Heating drive only operates at the cooling and heating model.
• Heating doesn't operate at cooling exclusive model.
Press button to turn on the
1
indoor.
Press button to select
2
Cooling operation mode.
Adjust the desired temperature
3
by pressing buttons.
Press button to check the
Room temperature.
When setting the desired
temperature higher than room
temperature, only ventilation
wind is blow out instead of
cooling wind.
Operating instructions
Owner’s Manual 11
ENGLISH
It removes humidity while air-cooling weakly.
• In rainy season or high humidity climate, it is possible to operate simultaneously dehumidifier and
cooling mode to remove humidity effectively.
• The menu item of wind powerfulness might not be partially selected according to the product.
Standard Operation - Dehumidification Mode
Auto Changeover Mode
Change temperature is the function to setup air-cooling and heating drive automatically changeable
according to the temperature at artificial intelligence drive mode.
Press button to turn on the
1
indoor.
Press button to select
2
Dehumidification mode.
The temperature setting can not be
adjusted during operation this mode.
Press the button to select
3
airflow rate weak → medium →
strong.
(The initial wind powerfulness of
humidity removal drive is 'weak'.)
Repeat pressing button until
1
icon flash.
Press button to change.
2
❈ Converting temp value : 1~7
Press button to complete
3
and active the setting process.
Press button to exit or
4
system will automatically release
without any input after 25
seconds.
❈ When exiting without pressing
set button, the manipulated
value is not reflected.
Operating instructions
12 Indoor Unit
Press button to turn on the
indoor.
1
Press button to select
Artificial intelligence Mode.
2
You can adjust the
temperature as the
picture on the right
for cooling and
heating model.
3
For the case of
cooling exclusive,
as the picture on
the right, you can
adjust the
temperature from
hot to cold, from
"-2" to "2" based
on "00".
4
When cold
When cool
When appropriate
When warm
When hot
Standard Operation - Auto Operation Mode
During operating Auto Operation mode:
• We can use the FAN SPEED button
• We can change manually to other operation mode.
Press button to turn on the
indoor.
1
Press button to select Fan
Mode.
2
Every time pressing button, you
can select wind flow in order of
feeble → weak → medium → strong
→ automatic.
When running ventilation,
compressor of AHU doesn't work.
3
Standard Operation - Fan Mode
It blows the air as it is in the indoor, not the cold wind.
• Ventilation drive does not release cool wind but general fan
• Because it releases the wind that has no temperature difference from the room, it functions to
circulate the inside air.
• The menu item of wind powerfulness might not be partially selected according to the product.
Operating instructions
Owner’s Manual 13
Standard Operation - Temperature Setting/Room Temperature Check
We can simply adjust the desired
temperature.
• Press the buttons to adjust the
desired temperature.
: Increase 1˚C or 2˚F per one time
pressing
: Decrease 1˚C or 2˚F per one time
pressing
Cooling operation:
- The cooling mode doesn't work if
desired temperature is higher than room
temperature Please lower the desired
temperature.
Heating operation:
- The heating mode doesn't work if desired
temperature is lower than room
temperature Please increase the desired
temperature.
1
Whenever press button, the room
temperature will be displayed within 5
seconds.
After 5 seconds, it turns to display the
desired temperature.
Because of location of remote controller,
the real room temperature and the this
displayed value can be different
1
Temperature Setting
Room Temperature Check
• For air-cooling drive, from 18°C to 30°C, and for heating drive, from 16°C to 30°C, you can select
desired temperature.
• 5°C is proper for the difference between room and outside temperature.
• Room temp: Indicate the current room
temperature.
• Set temp: Indicate the temperature that user
want to set.
❈
Depend on what kind of controller, the desired
temperature can be adjusted at 0.5˚C or 1˚F.
ENGLISH
Operating instructions
14 Indoor Unit
It is the function to use preventing children or others from careless using.
Function setting - Child Lock
Function Setting - Change Temp
Change temperature is the function to setup air-cooling and heating drive automatically changeable
according to the temperature at artificial intelligence drive mode.
Press button repeatedly until
1
the is flashing.
If moving to 'setup' icon area by
2
using button, 'setup' icon
blinks, and child lock function is
setup if pressing button at
that time.
When cancelling lock function, if moving
3
to 'cancel' icon by pressing button
and then, pressing button, child lock
function is cancelled.
Press button to exit.
4
After setup, it automatically gets out of setup
❈
mode if there is no button input for 25 seconds.
❈
When exiting without pressing set button, the
manipulated value is not reflected.
Repeat pressing button until
1
icon flash.
Press button to change.
2
❈ Converting temp value : 1~7
Press button to complete
3
and active the setting process.
Press button to exit or system
4
will automatically release without any
input after 25 seconds.
❈
When exiting without pressing set button,
the manipulated value is not reflected.
Operating instructions
Owner’s Manual 15
Function setting - Changing Current Time
ENGLISH
Please press function setup
1
button. If pressing function setup
button repeatedly, it moves to
time setup menu. ‘Time setup’
icon is indicated at that time and date
blinks at current time indication area.
Ex) Changing Current Time as
'Monday / AM 10:20'.
Press key to adjust the current
2
day.
Press key to move to AM/ PM setting
3
mode (the 'AM/ PM segment will flash).
Setting AM/ PM value by
4
pressing button.
Press button to move to 'Hour'
5
setting mode. (the 'Hour' segment will
flash)
Setting Hour value by pressing
6
button.
Operating instructions
16 Indoor Unit
Press button to move to 'Minute'
7
setting mode. (the 'Minute' segment will
flash)
Setting Minute value by pressing
8
button.
Press button to finish.
9
In the process, press
10
button to release and exit
from setting mode.
(In case of exit with
incomplete information, it will return to
the previous setting)
❈ When exiting without pressing set
button, the manipulated value is not
reflected.
Operating instructions
Owner’s Manual 17
ENGLISH
Programming - Simple Reservation
You can set the reservation conveniently in the units of 1 hour from 1 hour to 7 hours.
❈ When simple reservation setup, product automatically runs or stops after the time that is set.
Press button to enter the
1
Programming mode.
(the segment flashing)
Ex) Setting Simple Reservation
time as '3'.
Press button to adjust reservation
2
time.
Press button to finish setting.
3
Press button to exit.
4
❈ After setup, it automatically gets out of
setup mode if there is no button input
for 25 seconds.
❈ When exiting without pressing set
button, the manipulated value is not
reflected.
Operating instructions
18 Indoor Unit
Programming : Weekly Reservation
You can set the daily reservation in weekly unit.
Weekly reservation keeps operating until before you cancel it once you setup
Please move to reservation setup mode by pressing reservation button.
1
❈ You can setup two weekly reservations for one day, and up to fourteen
reservations for a week.
For example, to setup (Tuesday morning 11:30 turned on ~ afternoon 12:30
turned off), you setup in order below.
Please move to 'weekly' by
2
repeatedly pressing reservation
button. 'Weekly' blinks at this time.
Please select weekly reservation or
3
weekly reservation ¡ by using
button.
❈ You can setup two reservations,
weekly reservation 1 and weekly
reservation 2, for a day.
Please move to 'date' setup part by
4
using button. If 'date'
indication blinks, please setup date.
You can setup date from Monday to
Sunday.
Please move to 'AM/PM' setup part
5
of turning on by using button.
Please move to 'hour' setup part of
6
turning on by using button.
- It is the part to setup the time at
which air-conditioner is turned on.
Please change time by using button.
7
- You can setup hour 0~12.
Please move to 'minute' setup part of turning on by using button.
8
If 'minute' indication blinks, please setup 'minute' by using button
9
Operating instructions
Owner’s Manual 19
ENGLISH
Please move to 'AM/PM' setup part
of turning off by using button.
- AM/PM setup is identical with
turning on time setup.
10
Please move to 'hour' setup part
of turning off by using Right
button.
- It is the part to reserve the time
at which air-conditioner is
turned off.
- If 'hour' indication blinks, please
setup 'hour'.
❈
Please setup 'hour' and 'minute'
identically with the method to
setup turning on time.
11
If finishing weekly reservation setup, please press setup/cancellation button.
Weekly reservation setup for the day that you set is finished.
12
If you setup with the method identical with above by selecting the day that
you'd like to setup, it operates weekly reservation.
If you setup both turning on reservation time and turning off reservation time
identically, it doesn't operate reservation drive.
13
Weekly reservation explanation
Turning on time
Under bar: the indication that there is weekly reservation for
corresponding day
Reservation
number
Turning off time
❈ Indoor unit is turned on to desired temperature if it is configured using up/down button during preset of weekly operation time.
(Temperature selection range : 18℃~30℃)
- When desired temperature is not set, it is turned on automatically with desired temperature of previous operation.
Operating instructions
20 Indoor Unit
Programming - Sleep Reservation
Sleep reservation is the function of air-conditioner to run and stop after certain period of time at sleep
mode before sleep. When connected to a ventilation product and set the sleep reservation, when it
goes to the sleep mode, after the set time has elapsed.
Please reserve proper time at sleeping. (Too much air-cooling is not good for your health.)
• Because it automatically adjusts desired temperature for comfortable air-cooling at sleep drive,
there could be difference between remote controller's desired temperature and air-conditioner
body's desired temperature.
• Sleep reservation operates as off reservation for the product whose temperature adjustment isn't
controlled by unit of 0.5°C.
CAUTION
Press button to enter the
1
Programming mode.
Ex) Setting Sleep Reservation
time as '3'.
time.
The SLEEP reservation time is from 1 to
7 hours.
Press button to finish setting.
4
Whenever reservation is done.
Press button to exit.
5
❈ After setup, it automatically gets out of
setup mode if there is no button input
for 60 seconds.
❈ When exiting without pressing set
button, the manipulated value is not
reflected.
- If reservation is setup, 'sleep'
indication shows up at the lower part
of LCD screen.
If finishing sleep reservation setup,
6
air-conditioner product operates sleep
drive and stops after the time that is set.
Operating instructions
Owner’s Manual 21
ENGLISH
Programming : Holiday Reservation
It automatically stops at reserved day that you set.
Please press button.
1
It enters into reservation
setup mode.
Please move to 'holiday' by repeatedly
2
pressing button.
Please move to 'date' that
3
you want to setup holiday
by using button.
Please appoint or cancel holiday by
4
using
or button.
For example, when you setup
Monday/Friday to holiday
- 'Monday', 'Friday' letter disappears.
Please press button if finishing
5
holiday setup.
❈ If it comes to appointed holiday,
air-conditioner automatically stops.
Once you setup holiday appointment,
until before you cancel holiday setup,
air-conditioner automatically stops
within one hour even though you run
air-conditioner.
Maintenance and Service
22 Indoor Unit
Maintenance and Service
Grille, Case, and Remote Controller
❏ Turn the system off before cleaning. To clean, wipe with
a soft, dry cloth. Do not use bleach or abrasives.
Power supply must be disconnected before
cleaning the indoor unit.
NOTE
1. Remove the Air filters.
■
Take hold of the tab and pull slightly forward
to remove the filter.
CAUTION:
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 (40°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 the air filter.
Air Filters
The air filters behind the front grille should be checked and
cleaned once every 2 weeks or more often if neccessary.
CAUTION:
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 outlet vent
Air filters
Air outlet vent
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Maintenance and Service
Owner’s Manual 23
ENGLISH
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.
Maintenance and Service
24 Indoor Unit
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.
NOTE
Filter sign lamp is
ON.
MANUALE DEL’UTENTE
CLIMATIZZATORE
Leggere con attenzione questo manuale prima di usare
l’unità e conservare per uso futuro.
www.lg.com
TIPO : Condotto nascosto a soffitto
ITALIANO
SOMMARIO
2 Unità Interna
DATI DA RICORDARE
Annotare qui il numero di serie e il modello:
N°. modello
N°. di serie
I numeri sono riportati sull'etichetta a lato di ogni unità.
Nome del rivenditore
Data di acquisto
■
Spillare la ricevuta su questa pagina qualora fosse
necessaria per provare la data di acquisto o per motivi di
garanzia.
LEGGERE IL MANUALE
All’interno troverà molti suggerimenti utili sull’uso e la
manutenzione del condizionatore. Un minimo di
attenzione può far risparmiare molto tempo e denaro nel
corso della vita del condizionatore.
Nella tabella di riferimento per la risoluzione dei problemi
troverà molte risposte ai problemi più comuni.
Consultando la tabella Risoluzione dei problemi potrebbe
non essere necessario contattare il servizio di
assistenza.
AVVERTENZE
• Contattare un tecnico dell'assistenza autorizzato per la
riparazione o la manutenzione dell’unità.
• Contattare l’installatore per eseguire l’installazione
dell’unità.
• Il condizionatore non è stato progettato per essere
utilizzato da bambini o invalidi senza supervisione.
• È consigliabile vigilare sui bambini affinché essi non
giochino con il condizionatore.
• Se il cavo di alimentazione deve essere sostituito, il
servizio di sostituzione deve essere eseguito solo da
personale autorizzato utilizzando parti di ricambio
originali.
• Il servizio di installazione deve essere eseguito in
conformità con gli standard elettrici nazionali d
esclusivamente da personale autorizzato.
Precauzioni di sicurezza.........3
Prima di iniziare.......................6
Introduzione del prodotto.......7
Istruzioni per l'uso.................10
Manutenzione e assistenza....22
Prima di chiamare
l'assistenza
........................24
Precauzioni di sicurezza
Manuale di Istruzioni 3
ITALIANO
Per evitare infortuni dell'utente o altre persone e danni alle cose, attenersi alle seguenti
istruzioni.
■ L’uso errato causato dalla mancata osservanza delle istruzioni può causare danni o lesioni.
L’importanza è classificata dalle seguenti indicazioni.
■ Il significato dei simboli utilizzati in questo manuale è spiegato di seguito.
ATTENZIONE
AVVISO
Questo simbolo indica la possibilità di decesso o di grave
infortunio.
Questo simbolo indica la possibilità di infortunio o danni alle cose.
Azione/operazione da non fare.
Attenersi alle istruzioni.
ATTENZIONE
■ Installazione
Non utilizzare interruttori
automatici difettosi o di potenza
inferiore. Utilizzare questa
apparecchiatura su un circuito
dedicato.
• Vi è il rischio di scosse elettriche o
incendio.
Per i collegamenti elettrici,
rivolgersi al rivenditore, a un
elettricista qualificato o a un
centro di assistenza autorizzato.
• Non smontare o tentare di riparare
il prodotto. Vi è il rischio di scosse
elettriche o incendio.
Il prodotto deve essere sempre
provvisto di messa a terra.
• Vi è il rischio di scosse elettriche o
incendio.
Installare il pannello e il
coperchio della scatola di
controllo in modo sicuro.
• Vi è il rischio di scosse elettriche o
incendio.
Installare sempre un interruttore
automatico e circuito dedicato.
• L'errato cablaggio o installazione
può causare incendi o scosse
elettriche.
Utilizzare fusibili o interruttori
automatici di giusta tensione.
• Vi e il rischio di scosse elettriche o
incendio.
Precauzioni di sicurezza
Non modificare o prolungare il
cavo di alimentazione.
• Vi è il rischio di scosse elettriche o
incendio.
L'unità non deve essere installata
né rimossa dall'utente (cliente).
• Vi è il rischio di scosse elettriche,
incendio, esplosione o lesioni.
Disimballare e installare il
prodotto con attenzione.
• I bordi taglienti possono causare
infortuni. Fare particolare
attenzione ai bordi del contenitore
e alle alette del condensatore e
dell'evaporatore.
Per l'installazione, rivolgersi
sempre al rivenditore o a un
centro di assistenza autorizzato.
• Vi è il rischio di scosse elettriche,
incendio, esplosione o lesioni.
Non installare il prodotto su
supporti di installazione
difettosi.
• Ciò potrebbe causare infortuni,
incidenti o danni al prodotto.
Accertarsi che l'area di
installazione non sia soggetta a
deterioramento nel tempo.
• Se la base si rompe, l'unità può
cadere con essa, causando
infortuni a persone, guasti al
prodotto o danni alle cose.
Precauzioni di sicurezza
4 Unità Interna
■ Funzionamento
Non collegare/scollegare il cavo
di alimentazione alla/dalla presa
durante il funzionamento.
• Vi è il rischio di scosse elettriche o
incendio.
Non toccare il prodotto con le
mani bagnate.
• Vi è il rischio di scosse elettriche o
incendio.
Non posizionare riscaldatori o
altre apparecchiature vicino al
cavo di alimentazione.
• Vi è il rischio di scosse elettriche e
incendio.
Non utilizzare il prodotto troppo
a lungo in ambienti molto umidi
e con una finestra o una porta
aperta.
• L'umidità potrebbe condensarsi e
bagnare o danneggiare i mobili.
Avere cura di non tirare o
danneggiare il cavo di
alimentazione durante il
funzionamento.
• Vi è il rischio di scosse elettriche o
incendio.
Non mettere nulla sul cavo di
alimentazione.
• Vi è il rischio di scosse elettriche o
incendio.
Non far cadere acqua sui
componenti elettrici.
• Vi è il rischio di scosse elettriche,
incendio o guasti al prodotto.
Non conservare o utilizzare gas
infiammabili o combustibili in
prossimità del prodotto.
• Vi è il rischio di incendio o guasti al
prodotto.
Non utilizzare il prodotto in
luoghi chiusi per periodi
prolungati.
• Potrebbe esservi una scarsità di
ossigeno.
In caso di perdite di gas
infiammabile, aprire la finestra
per ventilare il locale prima di
azionare l'unità.
• Non utilizzare il telefono o
accendere o spegnere interruttori.
Vi è il rischio di esplosioni o
incendi.
In caso di rumori, odori o fumo
anomali provenienti dal
prodotto. Spegnere
l'interruttore automatico e
scollegare il cavo di
alimentazione.
• Vi è il rischio di scosse elettriche o
incendio.
Arrestare il funzionamento e
chiudere la finestra in caso di
tempeste o uragani. Se
possibile, rimuovere il prodotto
dalla finestra prima che arrivi un
uragano.
• Vi è il rischio di danni alle cose,
guasti al prodotto o scosse
elettriche.
Non aprire la griglia di
aspirazione del prodotto
durante il funzionamento (non
toccare il filtro elettrostatico, se
presente).
• Vi è il rischio di lesioni fisiche,
scosse elettriche o guasti al
prodotto.
In caso di allagamento del
prodotto, rivolgersi a un centro
di assistenza autorizzato.
• Vi è il rischio di scosse elettriche o
incendio.
Evitare che nel prodotto entri
acqua.
• Vi è il rischio di scosse elettriche,
incendio o danni al prodotto.
Di tanto in tanto, ventilare il prodotto quando
utilizzato insieme a fornelli ecc.
• Vi è il rischio di scosse elettriche o incendio.
Spegnere l'alimentazione prima di pulire o riparare
il prodotto.
• Vi è il rischio di scosse elettriche.
In caso di inutilizzo del prodotto per lunghi
periodi, scollegare il cavo di alimentazione e
spegnere l'interruttore automatico.
• Vi è il rischio di guasti al prodotto o attivazione
accidentale.
Evitare che l'unità esterna sia calpestata da
qualcuno.
• Ciò potrebbe lesioni personali e danni al prodotto.
Precauzioni di sicurezza
Manuale di Istruzioni 5
ITALIANO
■ Installazione
AVVISO
Dopo l'installazione o la
riparazione del prodotto,
verificare sempre che non vi
siano perdite di gas (refrigerante).
• Livelli bassi di refrigerante
potrebbero causare guasti al
prodotto.
Installare il tubo flessibile di
scarico in modo da garantire
uno scarico corretto e sicuro.
• Un errato collegamento può
causare perdite d'acqua.
Installare il prodotto
allineandolo in modo uniforme.
• Per evitare perdite d'acqua.
Non installare il prodotto in modo che il
rumore o l'aria calda provenienti dall'unità
esterna possano causare danni ai vicini.
• Ciò potrebbe causare problemi
con i vicini.
Per sollevare e trasportare il
prodotto sono consigliabili due
persone.
• Evitare lesioni personali.
Non installare il prodotto in
luoghi esposti direttamente al
vento di mare (spruzzi di sale).
• Ciò potrebbe causare corrosioni al
prodotto. La corrosione, in
particolare sul condensatore e sulle
alette dell'evaporatore, può causare
malfunzionamenti o inefficienza.
Non esporre la pelle
direttamente all'aria fresca per
periodi prolungati (non sedersi
nel raggio d'azione
dell'aspirazione).
• Ciò potrebbe causare danni alla
salute.
Non utilizzare il prodotto per scopi
specifici, ad esempio per conservare
alimenti, animali, opere d'arte ecc.
Questo prodotto è un condizionatore
d'aria, non un sistema di refrigerazione.
• Vi ò il rischio di danni o perdita
di cose.
Non bloccare l'ingresso o
l'uscita del flusso d'aria.
• In caso contrario, si potrebbero
verificare guasti al prodotto.
■ Funzionamento
Utilizzare un panno soffice per la
pulizia. Non utilizzare detergenti
aggressivi, solventi ecc.
• Vi è il rischio di scosse elettriche,
incendio o danno alle parti in
plastica del prodotto.
Non toccare le parti metalliche del
prodotto durante la rimozione del filtro
dell'aria. Sono molto appuntite!
• Vi è il rischio di lesioni personali.
Non calpestare o mettere
oggetti sul prodotto (unità
esterne).
• Vi è il rischio di lesioni personali o
guasti al prodotto.
Inserire sempre il filtro in modo
stabile. Pulire il filtro ogni 2
settimane o più spesso, se
necessario.
• Un filtro sporco riduce l'efficienza del
condizionatore e potrebbe causare
danni o malfunzionamenti del prodotto.
Non introdurre le mani o altri
oggetti nella bocca di ingresso
o uscita dell'aria durante il
funzionamento.
• Le parti mobili metalliche sono
affilate e potrebbero causare
infortuni.
Non bere acqua fuoriuscita dal
prodotto.
• Ciò può causare gravi danni alla
salute.
Utilizzare una scala salda per
pulire o riparare il prodotto.
• Fare attenzione ed evitare lesioni
personali.
Sostituire tutte le batterie del telecomando
sempre con altre dello stesso tipo. Non
mischiare batterie nuove e vecchie o
batterie di tipo diverso.
• Vi è il rischio di esplosioni o
incendi.
Non ricaricare o smontare le
batterie. Non gettare le batterie
nel fuoco.
• Potrebbero bruciare o esplodere.
In caso di caduta del liquido delle batterie sulla
pelle o sugli indumenti, lavare accuratamente con
acqua pulita. Non utilizzare il telecomando se le
batterie presentano delle perdite.
• Le sostanze chimiche delle batterie potrebbero
causare scottature o altri pericoli.
In caso di ingestione di liquido della batteria,
lavarsi i denti e consultare subito un medico. In
caso di perdita dalle batterie, non utilizzare il
telecomando.
•
Le sostanze chimiche contenute nelle batterie potrebbero
causare scottature o altri pericoli per la salute.
Prima di iniziare
6 Unità Interna
Prima di iniziare
1. Per l’installazione rivolgersi a un tecnico specializzato.
2. Utilizzare un circuito dedicato.
1. L’esposizione al flusso diretto dell’aria per un periodo prolungato di tempo può essere pericoloso
per la salute.
Non esporre le persone, gli animali o le piante al flusso d'aria per periodi di tempo prolungati.
2. A causa di una possibile carenza di ossigeno, ventilare la stanza quando viene usato insieme a
stufe o altri dispositivi di riscaldamento.
3. Non usare questo condizionatore d’aria per scopi speciali non specificati (es. per conservare
strumenti di precisione, cibo, animali, piante o oggetti d’arte.) Questo tipo di uso può rovinare
questo tipo di oggetti.
1. Quando si rimuove il filtro non toccare mai gli elementi metallici dell’unità. Si possono procurare
lesioni quando si maneggiano i bordi affilati di metallo.
2. Non pulire l’interno del condizionatore d’aria con acqua. L’esposizione all’acqua può rovinare
l’isolamento e provocare di conseguenza scosse elettriche.
3. Durante la pulizia del prodotto assicurarsi che l’interruttore automatico e l’alimentazione siano
disattivati. Durante il funzionamento la ventola gira a velocità elevata. Esiste la possibilità di
provocare lesioni se l’unità viene accidentalmente accesa mentre si puliscono i componenti interni
dell’apparecchio.
Per le riparazioni e la manutenzione rivolgersi al proprio rivenditore autorizzato.
Preparazione all’uso
USO
Pulizia e manutenzione
Assistenza
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