LG | ARNU12GTUD4.ENWAIBR | LG ARNU07GTUD4.ENWAIBR Owner’s Manual

ENGLISH
OWNER’S MANUAL
AIR
CONDITIONER
Please read this manual carefully before operating
your set and retain it for future reference.
CEILING CASSETTE - 1WAY
Original instruction
MFL68501401
Rev.00_050818
www.lg.com
Copyright © 2014 - 2018 LG Electronics Inc. All Rights Reserved.
Ceiling Cassette - 1Way Type Indoor Unit Owner’s Manual
TABLE OF CONTENTS
Safety Precautions.................3
FOR YOUR RECORDS
Write the model and serial numbers here:
Model #
Prior to Operation ..................6
Serial #
You can find them on a label on the side of each unit.
Dealer's Name
Operating Instructions...........7
Maintenance and Service ......8
Before you Call for Service
............................................13
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.
2
Indoor Unit
Safety Precautions
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
This symbol indicates the possibility of death or serious injury.
CAUTION
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
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.
• For installation, always contact the dealer or an Authorized Service Center.
- There is risk of fire, electric shock, explosion, or injury.
• Do not install the product on a defective installation stand.
- It may cause injury, accident, or damage to the product.
• Be sure the installation area does not deteriorate with age.
- If the base collapses, the air conditioner could fall with it, causing property damage, product failure, and
personal injury.
• Do not 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.
Owner’s Manual 3
ENGLISH
Safety Precautions
Safety Precautions
Operation
• 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.
• 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 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.
• 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.
CAUTION
Installation
• 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.
4
Indoor Unit
Safety Precautions
• 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.
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.
• Use a firm stool or ladder when cleaning or maintaining the product.
- Be careful and avoid personal injury.
• Replace the all batteries in the remote control with new ones of the same type. Do not mix old and new
batteries or different types of batteries.
- There is risk of fire or explosion
• Do not recharge or disassemble the batteries. Do not dispose of batteries in a fire.
- They may burn or explode.
• If the liquid from the batteries gets onto your skin or clothes, wash it well with clean water. Do not use the
remote if the batteries have leaked.
- The chemicals in batteries could cause burns or other health hazards.
• 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.
• 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 be supervised to ensure that
they do not play with the appliance.
OPERATING TEMPERATURE(C)
COOLING MODE
INDOOR
OUTDOOR
MAX.
MIN.
MAX.
MIN.
32C
21C
43C
21C
HEATING MODE
INDOOR
OUTDOOR
MAX.
MIN.
MAX.
MIN.
27C
20C
24C
1C
Owner’s Manual 5
ENGLISH
- To avoid vibration or water leakage.
Prior to Operation
Prior to Operation
Preparing for operation
1. Contact an installation specialist for installation.
2. Use a dedicated circuit.
Usage
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.
Cleaning and maintenance
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.
Service
For repair and maintenance, contact your authorized service dealer.
6
Indoor Unit
Operating Instructions
ENGLISH
Operating Instructions
Forced Operation
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.
Forced operation
(Tact switch)
Heat pump model
Cooling model
Operating mode
Indoor fan Speed
Setting temperature
Cooling
High
22°C
Room temperature
≥ set temperature -2°C
Room temperature
≥ set temperature -2°C
Cooling
Set available
Set available
Heating
Set available
Set available
Auto Restart Function
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.
Owner’s Manual 7
Maintenance and Service
Maintenance and Service(Robot + Panel Type)
CAUTION
Before performing any maintenance, turn off the main power to the system.
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.
NOTICE
Air outlet
Supply power must be disconnected
before cleaning the indoor unit.
Air inlet
Clean boy
Please sweep clean boy every five years or it is required.
Wired remote
controller
(optional)
1. Remove right cover of front panel.
2. Push button and pull down.
Front panel
Suction motor
Clean boy
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.
Right cover
Handle
Button
o Never use any of the followings:
• Water hotter than 40°C.
Could cause deformation
and/or discoloration.
• Volatile substances.
Could damage the
B en e
zen
surfaces of the air
conditioner.
8
Indoor Unit
SI
N NER
SCO
U RIN
CLB
ARGE
Maintenance and Service
ENGLISH
Maintenance and Service(Panel Type)
CAUTION
Before performing any maintenance, turn off the main power to the system.
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.
NOTICE
Air outlet
Supply power must be disconnected before
cleaning the indoor unit.
Air inlet
Wired remote
controller
(optional)
Air Filter
The air filters behind the front grille should be checked and
cleaned once every 2 weeks or more often if neccessary.
Air filter
1. Remove air filters.
o 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.
o If dirt is conspicuous, wash with a neutral
detergent in lukewarm water.
o If hot water (50°C or more) is used, it may
be deformed.
o 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
SI
N NER
conditioner.
B en
zene
3. After washing with water, dry well in
the shade.
o Do not expose the air filter to direct
sunlight or heat from a fire when drying it.
4. Install air filter.
SCO
U R IN
CLB
ARGE
Owner’s Manual 9
Maintenance and Service
Maintenance and Service(Grille Type)
CAUTION
Before performing any maintenance, turn off the main power to the system.
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.
NOTICE
Supply power must be disconnected
before cleaning the indoor unit.
Air outlet
Air inlet
Wired remote
controller
(optional)
Air Filter
The air filters behind the front grille should be checked and
cleaned once every 2 weeks or more often if neccessary.
1. Remove air filters.
o 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.
Rack
Air filter
2. Clean dirt from the air filter using a vacuum
cleaner or washing with water.
o If dirt is conspicuous, wash with a neutral
detergent in lukewarm water.
o If hot water (50°C or more) is used, it may
be deformed.
3. After washing with water, dry well in
the shade.
o Do not expose the air filter to direct
sunlight or heat from a fire when drying it.
TT chassis : 6EA Rack
TU chassis : 4EA Rack
4. Install air filter.
o 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
SI
N NER
conditioner.
Be
n zene
10
Indoor Unit
SCO
U R IN
CLB
ARGE
Maintenance and Service
CAUTION
Before performing any maintenance, turn off the main power to the system.
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.
NOTICE
Supply power must be disconnected
before cleaning the indoor unit.
Air outlet
Air inlet
Wired remote
controller
(optional)
Air Filter
The air filters behind the front grille should be checked and
cleaned once every 2 weeks or more often if neccessary.
1. Remove air filters.
o 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.
Rack
Plasma filter
2. Remove plasma filter.
o Unscrew 2 screws from plasma filter.
3. Clean dirt from the air filter using a vacuum
cleaner or washing with water.
o If dirt is conspicuous, wash with a neutral
detergent in lukewarm water.
o If hot water (50°C or more) is used, it may
be deformed.
4. After washing with water, dry well in
the shade.
o Do not expose the air filter to direct
sunlight or heat from a fire when drying it.
Air filter
TT chassis : 6EA Rack
TU chassis : 4EA Rack
o 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
SI
conditioner.
N NER
B en
zene
5. Install plasma filter and air filter.
SCO
U R IN
CLB
ARGE
Owner’s Manual 11
ENGLISH
Maintenance and Service(Plasma + Grille Type)
Maintenance and Service
When the air conditioner is not going to be used for a long time.
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.
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.
CAUTION
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.
Check that the ground wire is
connected correctly. It may be connect
to the indoor unit side.
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.
Operation Tips
Do not overcool the room.
Keep blinds or curtains
closed.
Keep the room temperature
uniform.
This is not good for the health
and wastes electricity.
Do not let direct sunshine
enter the room when the air
conditioner is in operation.
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.
Clean the air filter regularly.
Ventilate the room
occasionally.
Avoid opening doors and
windows as much as possible
to keep the cool air in the
room.
Blockages in the air filter
reduce the airflow and lower
cooling and dehumidifying
effects. Clean at least once
every two weeks.
12
Indoor Unit
Since windows are kept
closed, it is a good idea to
open them and ventilate the
room now and then.
Maintenance and Service
ENGLISH
Before you call for service...
Troubleshooting Tips! Save time and money!
Check the following points before requesting repairs or service.... If the malfunction persist,
please contact your dealer.
The air conditioner
does not operate.
• Have you made a
mistake in timer
operation?
• Has the fuse blown or
has the circuit breaker
been tripped?
Does not cool or heat
effectively.
The room has a
peculiar odor.
• Check that this is not a
damp smell exuded by
the walls, carpet,
furniture or cloth items
in the room.
The air conditioner
operation is noisy.
It seems that
condensation is
leaking from the air
conditioner.
Air conditioner does
not operate for about 3
minutes when restart.
• Condensation occurs
• This is the protector of
when the airflow from
the mechanism.
the air conditioner cools • Wait about three
the warm room air.
minutes and operation
will begin.
Crack sound is
heard.
• For a noise that sounds • This sound is generated
• Is the air filter dirty?
like water flowing.
See air filter cleaning
by the expansion/
-This is the sound of
instructions.
constriction of the front
• The room may have
freon flowing inside the panel, etc. due to
been very hot when the
air conditioner unit.
changes of temperature.
room air conditioner
• For a noise that sounds
was first turned on.
like the compressed air
releasing into
Allow time for it to cool
down.
atmosphere.
-This is the sound of
• Has the temperature
been set incorrectly?
the dehumidifying
• Are the indoor unit's air
water being processed
inside the air
inlet or outlet vents
conditioning unit.
obstructed?
Remote control
display is faint, or no
display at all.
• Are the batteries
depleted?
• Are the batteries
inserted in the opposite
(+) and (-) directions? NOTICE
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.
Owner’s Manual 13
14
Indoor Unit
Download PDF