LG | LTNH302NLE1 | LG LTNC302NLE1 Owner’s Manual

OWNER’S MANUAL
AIR CONDITIONER
Please read this manual carefully before operating
your set and retain it for future reference.
TYPE : CEILING CASSETTE
www.lg.com
P/NO : MFL42763408
Tips for saving energy
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 :
2 Ceiling Cassette Air Conditioner
Ceiling Cassette Air Conditioner Owner’s Manual
TABLE OF CONTENTS
Tips for saving energy...................2
FOR YOUR RECORDS
Write the model and serial numbers here:
Model #
Safety Precautions.........................4
Serial #
You can find them on a label on the side of each unit.
Dealer's Name
Prior to Operation ..........................7
Introduction ....................................8
Electrical Safety .............................9
Operating Instructions.................10
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.
Part Description ...........................12
PRECAUTION
Maintenance and Service ............36
Spec about the unit......................40
• 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.
Owner's Manual 3
Safety Precautions
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.
This symbol indicates the possibility of death or serious injury.
This symbol indicates the possibility of injury or damage.
■ Meanings of symbols used in this manual are as shown below.
Be sure not to do.
Be sure to follow the instruction.
■ OUT DOOR UNIT'S FEATURE MAY NOT BE SAME AS THAT OF MANUAL DRWAING.
■ 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.
Install the panel and the
cover of control box
securely.
Always install a dedicated
circuit and breaker.
• There is risk of fire or electric
shock.
• Improper wiring or installation
may cause fire or electric shock
Do not modify or extend the
power cable.
• There is risk of fire or electric
shock.
For installation, always contact the
dealer or an Authorized Service Center.
• There is risk of fire, electric
shock, explosion, or injury.
Do not install, remove, or reinstall the unit by yourself
(customer).
• There is risk of fire, electric
shock, explosion, or injury.
Always ground the product.
• There is risk of fire or electric
shock.
Use the correctly rated
breaker or fuse.
• There is risk of fire or electric
shock.
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.
Do not install the product on a
defective installation stand.
Be sure the installation area
does not deteriorate with age.
• It may cause injury, accident, or
damage to the product.
• If the base collapses, the air
conditioner could fall with it, causing
property damage, product failure,
and personal injury.
4 Ceiling Cassette Air Conditioner
Safety Precautions
■ Operation
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.
Do not plug or unplug the
power supply plug during
operation.
• There is risk of fire or 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.
Take care to ensure that power
cable could not be pulled out or
damaged during operation.
• There is risk of fire or electric
shock.
• There is risk of fire or electric
shock.
Do not touch(operate) the
product with wet hands.
Do not place a heater or
other appliances near the
power cable.
• There is risk of fire or electrical
shock.
• There is risk of fire and electric
shock.
Do not store or use flammable
gas or combustibles near the
product.
• There is risk of fire or failure of
product.
When flammable gas leaks,
turn off the gas and open a
window for ventilation
before turn the product on.
If strange sounds, or small or
smoke comes from product. Turn
the breaker off or disconnect the
power supply cable.
• Do not use the telephone or turn
switches on or off.
There is risk of explosion or fire
• There is risk of electric shock or
fire.
Do not open the inlet grill of the
product during operation.
(Do not touch the electrostatic
filter, if the unit is so equipped.)
When the product is soaked
(flooded or submerged),
contact an Authorized
Service Center.
• There is risk of physical injury,
electric shock, or product failure.
Do not place anything on
the power cable.
• There is risk of fire or electric
shock.
Ventilate the product from time to time when
operating it together with a stove, etc.
• 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.
Do not use the product in a
tightly closed space for a
long time.
• Oxygen deficiency could occur.
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.
Be cautious that water could
not enter the product.
• There is risk of fire, electric shock,
or product damage.
Turn the main power off when cleaning or
maintaining the product.
• There is risk of electric shock.
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
Safety Precautions
■ Installation
Always check for gas
(refrigerant) leakage after
installation or repair of product.
• Low refrigerant levels may cause
failure of product.
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.
Install the drain hose to
ensure that water is drained
away properly.
• A bad connection may cause
water leakage.
Use two or more people to
lift and transport the
product.
• Avoid personal injury.
Keep level even when
installing the product.
• To avoid vibration or water
leakage.
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 block the inlet or
outlet of air flow.
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.
Use a soft cloth to clean.
Do not use harsh
detergents, solvents, etc.
Do not touch the metal parts of
the product when removing the
air filter. They are very sharp!
• It may cause product failure.
• There is risk of fire, electric shock,
or damage to the plastic parts of
the product.
Do not step on or put
anyting on the product.
(outdoor units)
Always insert the filter securely.
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 product is operated.
• There is risk of personal injury
and failure of product.
• A dirty filter reduces the efficiency of
the air conditioner and could cause
product malfunction or damage.
• 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.
Do not recharge or disassemble
the batteries. Do not dispose of
batteries in a fire.
• They may burn or explode.
• There is risk of personal injury.
Use a firm stool or ladder
when cleaning or
maintaining the product.
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.
• Be careful and avoid personal
injury.
• There is risk of fire or explosion
All batteries (whether installed or
attached) should not be exposed
to excess heat like sunlight or
similar source.
• They may burn or explode.
6 Ceiling Cassette Air Conditioner
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.
Prior to Operation
Prior to Operation
Preparing for operation
1. Contact an installation specialist for installation.
2. Plug in the power plug properly.
3. Use a dedicated circuit.
4. Do not use an extension cord.
5. Do not start/stop operation by plugging/unplugging the power cord.
6. If the cord/plug is damaged, replace it with only an authorized replacement part.
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.
Owner's Manual 7
Introduction
Introduction
Symbols used in this Manual
This symbol alerts you to the risk of electric shock.
This symbol alerts you to hazards that could cause harm to the
air conditioner.
NOTICE
This symbol indicates special notes.
Features
WARNING: This appliance should be installed in accordance with national wiring
regulations. This guide acts as a guide to help to explain product features.
Anti-bacteria
Anti-bacteria
Air Outlet
Air Inlet
Remote
Controller
8 Ceiling Cassette Air Conditioner
Electrical Safety
Electrical Safety
WARNING: This appliance must be properly grounded.
To minimize the risk of electric shock, you must alway plug into a grounded oulet.
Preferred method
Ensure proper ground
exists before use
WARNING: Do not cut or remove the grounding prong from the
power wire.
WARNING: Attaching the adapter ground terminal to the wall
receptacle cover screw does not ground the appliance unless the
cover screw is metal and not insulated, and the wall receptacle is
grounded through the house wiring.
WARNING: If you have any doubt whether the air conditioner is
properly grounded, have the wall receptacle and circuit checked by
a qualified electrician.
Owner's Manual 9
Operating Instructions
Operating Instructions
Indoor Unit, Outdoor Unit
Anti-bacteria
Anti-bacteria
Air Outlet
Air Inlet
Anti-bacteria
Remote
Controller
1⃞ 2⃞ 3⃞
4⃞
5⃞
6⃞
Operation Indication Lamps
1⃞ Forced Operation : Operation procedures when remote control can't be used.
2⃞ Defrost Mode
: Lights up during defrost mode or hot start operation.
(heat pump model only)
3⃞ Timer
: Lights up during timer operation.
4⃞ Signal Receptor : Receives the signal from remote control (signal receiving sound:
two short beeps and one long beep)
5⃞ Filter Sign
: Lights up after 2400 hours from the time of first operation.
6⃞ On/Off
: Lights up during system operation.
Outdoor Unit
Air Intake
(side, rear)
Connecting Wire
Power Wire
Air Outlet
Vents
Connection Tube
Drain Hose
Heat pump model: Cassette Type Air Conditioner for cooling and heating
Cooling model: Cassette Type Air Conditioner for cooling
10 Ceiling Cassette Air Conditioner
Operating Instructions
Wireless Remote Controller (Optional)
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.
5
6
4
2
7
11
8
13
14
ON
OFF
1. START/STOP BUTTON
Operation starts when this button is pressed and stops when the
Signal transmitter
button is pressed again.
2. OPERATION MODE SELECTION BUTTON
Used to select the operation mode.
3. ROOM TEMPERATURE
SETTING BUTTONS
Used to select the room temperature.
4. INDOOR FAN SPEED SELECTOR
Used to select fan speed in four steps
low, medium, high and CHAOS.
5. JET COOL
Used to start or stop the speed cooling/heating.
1
(Speed cooling/heating operates super high fan speed.)
6. CHAOS SWING BUTTON
3
Used to stop or start louver movement and set the desired up/down
airflow direction.
7. ON/OFF TIMER BUTTONS
10
Used to set the time of starting and stopping operation.
CANCEL
8. TIME SETTING BUTTONS
9
SET
Used to adjust the time.
AUTO CLEAN
9. TIMER SET/CANCEL BUTTON
12
Used to set the timer when the desired time is obtained and to cancel
the Timer operation.
10. SLEEP MODE AUTO BUTTON
Used to set Sleep Mode Auto operation.
15
11. AIR CIRCULATION BUTTON
Used to circulate the room air without cooling or heating.
12. ROOM TEMPERATURE CHECKING BUTTON
Used to check the room temperature.
Flip-up door
13. PLASMA(OPTIONAL)
(opened)
Used to start or stop the plasma-purification function.
14. RESET BUTTON
Initialize remote controller.
15. 2nd F Button
Used prior to using modes printed in blue at the bottom of buttons.
❈ The wireless remote controller does not operate the swirl mode and super low fan speed.
CAUTION:of handling the Remote Controller
• 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)
Owner's Manual 11
Part Description
Part Description
Name and Function of Remote Controller(PQRCVSL0QW)
1
10
9
8
2
3
7
4
11
12
13
5
6
14
15
Please attach the inform label inside of the door.
Please choose proper language depend on your
country.
1 OPERATION INDICATION
SCREEN
2 SET TEMPERATURE BUTTON
3 FAN SPEED BUTTON
4 ON/OFF BUTTON
5 OPRATION MODE SELECTION
BUTTON
6 WIRELESS REMOTE
CONTROLLER RECEIVER
• Some products don't receive the
wireless signals.
7 AIR FLOW BUTTON
8 SUBFUNCTION BUTTON
9 FUNCTION SETTING BUTTON
10 VENTILATION BUTTON
11 RESERVATION
12 UP,DOWN,LEFT,RIGHT BUTTON
• To check the indoor temperature,
press
button.
13 ROOM TEMPERATURE BUTTON
14 SETTING/CANCEL BUTTON
15 EXIT BUTTON
❊ Some functions may not be operated and displayed depending on the product type.
Accessory
Connection Cable
(1EA, 10m)
Screw
(4 EA)
12 Ceiling Cassette Air Conditioner
Owner's / Installation
manual
Inform label
(8EA-8Languages)
Part Description
Standard Operation - Standard Cooling
It cools the room by comfortable and clean wind.
1 Press
indoor.
button to turn on the
button to select
2 Press
Cooling operation mode.
the desired temperature
3 Adjust
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.
❈ Setting Temp Range : 18˚C~30˚C (64˚F~86˚F)
Standard Operation - Power Cooling
It makes the room cool using pleasant and fresh air quickly
1 Press
indoor.
button to trun on the
button to select
2 Press
cooling operation mode.
button continuously
3 Press
until 'Po' displayed.
What is Power Cooling?
• Desired temperature: Po (actually 18°C)
• Wind flow: power wind
• Wind direction: fix to air-cooling position
}
It make room temperature
drop fast by running
❈ Partial product has no power air-cooling function.
Owner's Manual 13
Part Description
Standard Operation - Heating Mode(Heat pump model only)
It supplies warm wind to the indoor
1 Press
indoor.
button to turn on the
button to select
2 Press
Heating mode.
(To check the indoor temperature,
press the room temperature button.)
the desired temperature
3 Adjust
by pressing
buttons.
When setting the desired
temperature lower than room
temperature, there is only
ventilation wind.
• Heating drive only operates at the cooling and heating model.
• Heating doesn't operate at cooling exclusive model.
Standard Operation - Dehumidification Mode
It removes humidity while air-cooling weakly.
1 Press
indoor.
button to turn on the
button to select
2 Press
Dehumidification mode.
The temperature setting can not be
adjusted during operation this mode.
the
button to select
3 Press
airflow rate feeble → weak →
medium → strong → automatic.
(The initial wind powerfulness of
humidity removal drive is 'weak'.)
• 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.
14 Ceiling Cassette Air Conditioner
Part Description
Standard Operation - Auto Operation Mode
1 Press
indoor.
button to turn on the
button to select
2 Press
Artificial intelligence Mode.
can adjust
3 You
the temperature
as the picture on
the right for
cooling and
heating model.
the case of
4 For
cooling exclusive,
as the picture on
the right, you can
adjust the
temperature from
hot to cold, from
"-2" to "2" based
on "00".
When cold
When cool
When appropriate
When warm
When hot
During operating Auto Operation mode:
• We can use the FAN SPEED button
• We can change manually to other operation mode.
Owner's Manual 15
Part Description
Standard Operation - Fan Mode
It blows the air as it is in the indoor, not the cold wind.
1 Press
indoor.
button to turn on the
2 Press
Mode.
button to select Fan
time pressing
button, you
3 Every
can select wind flow in order of
feeble → weak → medium → strong
→ automatic.
• 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.
16 Ceiling Cassette Air Conditioner
Part Description
Standard Operation - Temperature Setting/Room Temperature Check
Temperature Setting
can simply adjust the desired
1 We
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
• 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.
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.
Room Temperature Check
press
button, the room
1 Whenever
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
• 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.
Owner's Manual 17
Part Description
Standard Operation - Airflow Setting
Wind powerfulness : You can simply adjust
desired wind powerfulness.
setup desired wind
1 Please
powerfulness by wind powerfulness
button.
• Every time you press wind
powerfulness, you can select the wind flow in
order of ‘feeble → weak → weak medium →
medium → medium strong → strong → power
→ automatic’.
• The menu item might not be partially
selected according to product function.
• Please refer to product manual for product’s
detailed function.
Wind direction : You can simply adjust desired
wind direction.
set desired wind direction
1 Please
by pressing
button.
You can select wind direction of
(comfortable wind → Up/Down and
Right/Left → Right/Left →
Up/Down) by pressing
button.
Partial item of wind directions might not be
selected according to product function.
Please refer to product manual for product’s
detailed function.
18 Ceiling Cassette Air Conditioner
Part Description
Sub function - Direct Wind / Indirect Wind
It is the function to directly or indirectly control wind direction by body perception sensor.
The method to setup direct/indirect wind
1 Please press
button.
icon of direct/indirect wind
2 The
blinks on the display, and then, if
button, direct/indirect
pressing
wind icon is fixed and the function
is setup.
direct wind
indirect wind
pressing
3 Ifsetup
mode.
button, it gets out of
Owner's Manual 19
Part Description
Function setting -Ceiling Height Selection
Our products provide variety of air volumes and capacities according to the selection of ceiling heights.
button long for 3
pressing
1 Ifseconds,
it enters into remote
controller setter setup mode.
- If pressing once shortly, it enters
into user setup mode. Please press
more than 3 seconds for sure.
2
If moving to ceiling height selection menu by
button, it indicates as picture
pressing
below.
height value by pressing
3 Select ceiling
button. (01:Low, 02:Standard,
03:High, 04:Very high)
Function Code
4 Press
Thermistor setting
button to save.
button will exit settings mode.
5 Pressing
❈ 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.
<Ceiling Height Selection Table>
05:01
05:02
05:03
05:04
Ceiling Height Level
Low
Standard
High
Very high
Description
Decrease the indoor airflow rate 1 step from standard level
Set the indoor airflow rate as standard level
Increase indoor airflow rate 1 step from standard level
Increase indoor airflow rate 2 steps from standard level
Cooling/Heating performance is enhanced with relation to Ceiling height.
• The highest cooling heating performance and efficiency are provide at Very high.
( Some noise may be generated according to the level height setting.)
20 Ceiling Cassette Air Conditioner
Part Description
Function setting - Filter Sign Clear
This function is to clear the indicator of indoor filter cleaning.
1 Press
until the
button repeatedly
is flashing.
the
is flashing, press
2 When
the
to clear this display
• When filter is covered by dust, it will reduce cooling/heating efficiency and accumulate more
electric power. Therefore. do clean the filter whenever cleaning time is expired.
❈ Filter cleaning indication is automatically cancelled without the separate cancellation after certain
period of time.
Function setting - Child Lock
It is the function to use preventing children or others from careless using.
button repeatedly until
1 Press
the
is flashing.
moving to 'setup' icon area by
2 Ifusing
button, 'setup' icon
blinks, and child lock function is
setup if pressing
button at
that time.
cancelling lock function, if moving
3 When
to 'cancel' icon by pressing
button
and then, pressing
button, child lock
function is cancelled.
button to exit.
4 Press
❈ 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.
Owner's Manual 21
Part Description
Function setting - Elevation Grill
This function is to move the indoor filter up/down for cleaning filter.
button
1 Press
Repeat pressing
button until
icon flash.
to descent using
button
2 Move
and press
button will display
descent icon and the up/down grill will
descent.
up/down grill descents to the
3 When
desired position, move to stop icon
suing
button and press
to stop up/down grill.
button
filter cleaning is finished, fix the
4 When
filter to the up/down grill, move to ascent
icon using
button, and press
button to ascent up/down grill.
button to exit.
5 Press
❈ 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.
• Elevation grill function only operates in the indoor unit with the elevation grill.
22 Ceiling Cassette Air Conditioner
Part Description
Function setting - Vane Angle Control
This function is to adjust angle at which airflow is blow out.
pressing
1 Repeat
icon flash.
button until
button to select active vane :
2 Press
1 / 2 / 3 / 4 / All / Standard
Select Vane number using
buttons.
❈ Vane number : No. 1, 2., 3, 4, all, or
standard
- Selected vane is in operation.
- Please verify the operating vane.
- To set the angle of all the vanes,
select 'all'.
- To set as the factory default settings,
select 'standard'.
wind angle using
3 Select
and press
button.
button,
- The boundary of wind angle settings
can be changed to 5 levels or 6 levels
according to the product.
- When selecting 'standard' for Vane
number, the wind angle does not move.
the wind angles for the remaining
4 Set
vanes as the same as above.
❈ There are products with vanes with
no. 1 and no. 2 only according to the
product types.
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.
button to complete and
6 Press
active the setting process.
(Airflow direction function will be
released whenever setting vane angle)
button to exit or
7 Press
system will automatically release
without any input after 25
seconds.
Owner's Manual 23
Part Description
Function setting - Changing Current Time
press function setup
1 Please
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'.
2 Press
day.
key to adjust the current
key to move to AM/ PM setting
3 Press
mode (the 'AM/ PM segment will flash).
AM/ PM value by
4 Setting
pressing
button.
button to move to 'Hour'
5 Press
setting mode. (the 'Hour' segment will
flash)
Hour value by pressing
6 Setting
button.
24 Ceiling Cassette Air Conditioner
Part Description
button to move to 'Minute'
7 Press
setting mode. (the 'Minute' segment will
flash)
Minute value by pressing
8 Setting
button.
9 Press
10
button to finish.
In the process, press
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.
Owner's Manual 25
Part Description
Programming - Simple Reservation
You can set the reservation conveniently in the units of 1 hour from 1 hour to 7 hours.
button to enter the
1 Press
Programming mode.
(the
segment flashing)
Ex) Setting Simple Reservation
time as '3'.
2 Press
time.
3 Press
button to adjust reservation
button to finish setting.
button to exit.
4 Press
❈ 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.
❈ When simple reservation setup, product automatically runs or stops after the time that is set.
26 Ceiling Cassette Air Conditioner
Part Description
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.
button to enter the
1 Press
Programming mode.
Ex) Setting Sleep Reservation
time as '3'.
pressing
button to enter the
2 Repeat
SLEEP reservation setting mode.
(
3 Press
time.
segment flashing)
button to adjust reservation
The SLEEP reservation time is from 1 to
7 hours.
button to finish setting.
4 Press
Whenever reservation is done.
button to exit.
5 Press
❈ 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.
finishing sleep reservation setup, air6 Ifconditioner
product operates sleep drive
and stops after the time that is set.
CAUTION
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.
Owner's Manual 27
Part Description
Programming - ON Reservation
Automatically turned On at reserved time that you set.
1 Press
button.
Ex) Setting ON Reservation
Time as 'AM 10:20'.
pressing
button to
2 Repeat
enter the ON reservation
setting mode.
(
segment flashing)
3 Press
setting.
button to adjust AM/ PM
button to Hour setting
4 Press
mode. When the Hour icon flash, please
setting time.
The setting range is within 1~12.
button to shift to Minute
5 Press
setting mode. When the Minute icon
flash, please setting minute the setting
range is within 00~59.
6 Press
28 Ceiling Cassette Air Conditioner
button to finish setting.
Part Description
button to exit.
7 Press
❈ 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.
- If reservation is set, 'turned on'
indication shows up at the lower part
of LCD screen, and air-conditioner
product runs at the time that is set.
- If reservation is cancelled, 'turned on'
indication disappears.
Owner's Manual 29
Part Description
Programming - OFF Reservation
Automatically turned Off at reserved time that you set.
1 Press
button.
Ex) Setting OFF Reservation
Time as 'AM 10:20'.
pressing
button
2 Repeatedly
to enter the OFF reservation
setting mode.
(
segment flashing)
3 Press
setting.
button to adjust AM/ PM
button to shift to Hour
4 Press
setting mode. When the Hour icon flash,
please setting time.
The setting range is within 1~12.
button to shift to Minute
5 Press
setting mode. When the Minute icon
flash, please setting minute the setting
range is within 00~59.
6 Press
30 Ceiling Cassette Air Conditioner
button to finish setting.
Part Description
button to exit.
7 Press
❈ 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.
- If reservation is set, 'turned off'
indication shows up at the lower part
of LCD screen, and air-conditioner
product runs at the time that is set.
- If reservation is cancelled, 'turned off'
indication disappears.
Owner's Manual 31
Part Description
Programming : Weekly Reservation
You can set the daily reservation in weekly unit.
Weekly reservation keeps operating until before you cancel it once you setup
1
Please move to reservation setup mode by pressing reservation button.
❈ 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.
move to 'weekly' by
2 Please
repeatedly pressing reservation
button. 'Weekly' blinks at this time.
select weekly reservation ➀
3 orPlease
weekly reservation ➁ by using
button.
❈ You can setup two reservations,
weekly reservation 1 and weekly
reservation 2, for a day.
move to 'date' setup part by
4 Please
using
button. If 'date'
indication blinks, please setup date.
You can setup date from Monday to
Sunday.
move to 'AM/PM' setup part
5 Please
of turning on by using
button.
move to 'hour' setup part of
6 Please
turning on by using
button.
- It is the part to setup the time at
which air-conditioner is turned on.
change time by using
button.
7 Please
- You can setup hour 0~12.
8 Please move to 'minute' setup part of turning on by using
9 If 'minute' indication blinks, please setup 'minute' by using
32 Ceiling Cassette Air Conditioner
button.
button
Part Description
move to 'AM/PM' setup part
10 Please
of turning off by using
button.
- AM/PM setup is identical with
turning on time setup.
move to 'hour' setup part
11 Please
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.
finishing weekly reservation setup, please press setup/cancellation button.
12 IfWeekly
reservation setup for the day that you set is finished.
you setup with the method identical with above by selecting the day that
13 Ifyou'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.
Weekly reservation explanation
Reservation
number
Turning on time
Turning off time
Under bar: the indication that there is weekly reservation for
corresponding day
Owner's Manual 33
Part Description
Programming : Holiday Reservation
It automatically stops at reserved day that you set.
press
button.
1 Please
It enters into reservation
setup mode.
move to 'holiday' by repeatedly
2 Please
pressing
button.
move to 'date' that
3 Please
you want to setup holiday
by using
button.
or cancel holiday by using
4 Pleaseorappointbutton.
For example, when you setup
Monday/Friday to holiday
- 'Monday', 'Friday' letter disappears.
press
5 Please
holiday setup.
button if finishing
❈ If it comes to appointed holiday, airconditioner 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.
34 Ceiling Cassette Air Conditioner
Part Description
Ventilation setting (optional)
Incase of there is linkage between ventilator and air conditioner, it is able to control this ventilator.
1. Control using remote controller where air conditioner indoor unit and the
ventilation product is installed at the same time.
Single Operation
Interlinked Operation
(General Ventilation Single Operation)
(General Ventilation Interlinked Operation)
Wired Remote
Controller
(Direct Expansion Ventilation Single Operation)
Direct
Expansion
Ventilation
General
Ventilation
Air conditioner
Indoor unit
General
Ventilation
General
Ventilation
Wired Remote Controller
(Direct Expansion Ventilation Interlinked Operation)
Direct Expansion
Ventilation
Air conditioner
Indoor unit
Wired Remote
Controller
Wired Remote Controller
Direct
Expansion
Ventilation
❈ Connecting wires is the same as air conditioner user manual. (Refer to page about Group control)
2. Press 'Ventilation' button on the wired remote controller and enter Ventilation
control mode to check the operation of ventilation product.
3. To convert back to air conditioner mode, press 'Ventilation' button at the
ventilation mode.
- If no button pressed for 15 seconds or more at ventilation mode, it automatically converts back to air
conditioner mode.
- Ventilation product represent general ventilation product and direct expansion ventilation product.
Aircon
Ventilator
220V data link
Owner's Manual 35
Maintenance and Service
Maintenance and Service
CAUTION Before performing any maintenance, turn off the main power to the system.
Indoor Unit
Grille, Case and Remote Control
❐ Turn the system off before cleanining, 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.
Anti-biofilter
Air
Intake
Air Outlet
Remote
Controller
Air Filters
1 Remove the Air filters.
■ Take hold of the tab and pull slightly
forward to remove the filter.
The air filters behind the front grille should be
checked and cleaned once every 2 weeks or more
often if neccessary.
Rack
CAUTION: When the air filter is to
be removed, do not touch the metal
parts of the indoor unit.
It may cause an injury.
Air Filter
■ 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
2 Clean dirt from the air filter using a
vacuum cleaner or washing with water.
■ If dirt is conspicuous, wash with a neutral
detergent in lukewarm water.
■ If hot water (50°C or more) is used, it may
be deformed.
SCOU
RING C
C LB A
R G ER G C
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.
Outdoor Unit
The heat exchanger coils and panel vents of the outdoor unit
should be checked regularly. If clogged with dirt or soot, the
heat exchanger and panel vents may be professionally
steam cleaned.
NOTICE
Dirty or clogged coils will reduce the operating efficiency of the
system and cause higher operating costs.
36 Ceiling Cassette Air Conditioner
Air Intake
(side, rear)
Air Outlet
Connecting Wire
Power Wire
Connection Pipe
Drain Hose
Maintenance and Service
When the air conditioner is not going to be used for a long time.
When air conditioner is not going to be used for a long time.
1. Operate the air conditioner at the following settings for 2 to 3 hours.
• Type of operation: Fan operation mode.(Refer to page 15.)
• This will dry out the internal mechanisms.
2. Turn off the breaker.
CAUTION Turn off the circuit breaker when the air conditioner is not going to be used
for a long time. Dirt may collect and may cause a fire.
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 the air conditioner is to be used again.
1. Clean the air filter and install it in the indoor unit.
(Refer to page 35 for cleaning it.)
2. Check that the air inlet and outlet of the indoor/outdoor unit are not blocked.
3. Check that the ground wire is connected correctly. It may be connect to the indoor unit side.
Operation Tips
Do not overcool the room.
Keep blinds or curtains
closed.
This is not good for your health
and wastes electricity.
Do not let direct sunshine enter
the room when the air
conditioner is in operation.
Make sure that the doors
and windows are shut tight.
Clean the air filter regularly.
Avoid opening doors and
Blockages in the air filter
windows as much as possible
reduce the airflow and lower
to keep the cool air in the room. cooling and dehumidifying
effects. Clean at least once
every two weeks.
Keep the room temperature
uniform.
Adjust the vertical and
horizontal airflow direction to
ensure a uniform temperature
in the room.
Ventilate the room
occasionally.
Since windows are kept closed,
it is a good idea to open them
and ventilate the room now and
then.
Owner's Manual 37
Maintenance and Service
Troubleshooting Tips! Save time and money!
Check the following points before requesting repairs or service.... If the fault persists, please contact
your dealer or service center.
Case
Explanation
The air conditioner does not
operate.
• Have you made a mistake in timer operation?
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.
See page
23~33
• Has the fuse blown or has the circuit breaker
been tripped?
It seems that condensation is
leaking from the air
conditioner.
• Condensation occurs when the airflow from the
air conditioner cools the warm room air.
Air conditioner does not
operate for about 3 minutes
when restarted.
• This is the protector of the mechanism.
Does not cool or heat
effectively.
• Is the air filter dirty? See air filter cleaning
instructions.
• Wait about three minutes and operation will
begin.
-
-
-
35
• The room may have been very hot when the
room air conditioner was first turned on. Allow
time for it to cool down.
The air conditioner operation is
noisy.
• Has the temperature been set incorrectly?
16
• 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.
-
Remote control display is faint,
or no display at all.
• Are the batteries depleted?
Crack sound is heard.
• 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.
-
Filter sign lamp (LED) is ON.
• Are the batteries inserted in the opposite (+)
and (-) directions?
38 Ceiling Cassette Air Conditioner
-
Maintenance and Service
Details of LG serial No.
1
2
3
4
5
6
7
8
9
10
Main Service Part List
Code
Detail
Code of Model
Meaning
NO
PART NAME
1
Year
0~9
(Digit)
The last digit of year
ex) 1997 → 7, 2000 → 0
1
COMPRESSOR
2,3
Month
01~12
(Digit)
Month
ex) March → 03, August → 08
2
MOTOR
4
Nation
A~Z
(Alphabet)
Where manufactured
ex) K → Korea, C → China
3
MAIN PCB ASSY
4
REMOCON
5
Product
A~Z
(Alphabet)
ex) A → Airconditioner
5
TRANSFORMER
6~10 Serial No.
0~9
(Digit)
Production Quantity
H. G. IBRAHIM SHAKER COMPANY, LTD.
SERVICE CENTER
* JEDDAH
→
P. O. BOX 50, JEDDAH 21411 KINGDOM OF SAUDI ARABIA
TEL NO. : 6422952 / 6425527
* RIYADH
→
P. O. BOX 15, RIYADH 11411 KINGDOM OF SAUDI ARABIA
TEL NO. : 4020570
* AL-KHOBAR
→
P. O. BOX 78, AL-KHOBAR 31952 KINGDOM OF SAUDI ARABIA
TEL NO. : 8943714
Owner's Manual 39
Spec about the unit
Spec about the unit
Model
Indoor
Outdoor
Brand
Country of origin
Type
Voltage (V)
Phase
Hz
Refrigerant R22 (kg)
Capacity (kW)
Input (kW)
Cooling(T1)
Current (A)
EER (Btu/Watt.hr)
Capacity (kW)
Input (kW)
Cooling(T3)
Current (A)
EER (Btu/Watt.hr)
Indoor (W*H*D
Dimensions
Outdoor (W*H*D)
Indoor
Outdoor
Annual energy consumption (KWh)
Net Weight
40 Ceiling Cassette Air Conditioner
LTNC182QLE1
LTUC182QLE1
LG Electronics Inc
Korea
Cassette
220 V ~
1 Phase
60 Hz
1.16
5.20
1 820
8.4
9.75
4.60
2 090
10
7.30
570*570*256 mm
22.4*22.4*10.0 inch
830*575*275 mm
32.7*22.7*10.8 inch
15 kg
41 kg
4941
LTNH182QLE1
LTUH182QLE1
LG Electronics Inc
Korea
Cassette
220 V ~
1 Phase
60 Hz
1.16
5.10
1 830
8.4
9.50
4.60
2 165
10
7.25
570*570*256 mm
22.4*22.4*10.0 inch
830*575*275 mm
32.7*22.7*10.8 inch
15 kg
41 kg
4941
www.lg.com
P/NO : MFL42763408
ُ
ً
ً
َ
ُ
2
Safety Precautions
4.................
7......................
8........................
9......................
10..................
12.....................
35.....
3
■
4
5
6
1
2
3
4
5
6
1
2
3
1
2
3
7
Anti-bacteria
8
9
Anti-bacteria
1
2
3
4
5
6
:
1
:
2
:
3
:
4
:
5
:
6
10
1
2
3
4
5
6
1
3
4
2
7
11
8
13
14
CANCEL
ON
OFF
SET
AUTO CLEAN
10
9
12
15
5
6
7
8
9
10
11
12
13
14
15
11
(PQRCVSL0QW)
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
1
2
3
SI
B en
4
35
z ene
N NER
S COU
RING C
C LBA
R GE RG C
1
15
2
1
2
3
36
22~32
34
16
-
-
37
LED
1
1
2
3
4
5
2
0
3
2000,7
8
4
1997
3
C
K
A
5
6
7
8
9
10
9~0
1
12~1
3,2
Z~A
4
Z~A
5
9~0
10~6
(21411)
(50)
6425527/6422952
(11411)
(15)
402057
(31952)
(78)
8943714
38
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