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LTNH602MLE0

LG LTNH602MLE0 Owner's manual

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LG Ceiling Cassette
Air Conditioner
OWNER'S MANUAL
LG
IMPORTANT
• Please read this owner's manual carefully and thoroughly
before installing and operating your room air conditioner.
• Please retain this owner's manual for future reference after
reading it thoroughly.
website http://www.lgservice.com
Dear Owner
Thank you for installing LG Air Conditioner.
Your best choice guarantees you a great
performance and service to make your life
comfortable & pleasant.
2 Ceiling Cassette Air Conditioner
Ceiling Cassette Air Conditioner Owner’s Manual
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 ..........................8
Introduction ....................................9
Electrical Safety ...........................10
Operating Instructions.................11
Maintenance and Service ............30
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.
■ Meanings of symbols used in this manual are as shown below.
This symbol indicates the possibility of death or serious injury.
This symbol indicates the possibility of injury or damage.
Be sure not to do.
Be sure to follow the instruction.
■ 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.
4 Ceiling Cassette Air Conditioner
Safety Precautions
■ Operation
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 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.
Owner's Manual 5
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.
Gasolin
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.
6 Ceiling Cassette Air Conditioner
Safety Precautions
■ Installation
■ Operation
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.
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.
90°
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.
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.
Owner's Manual 7
Safety Precautions
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.
Wax
Thinner
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.
8 Ceiling Cassette Air Conditioner
Prior to Operation
Prior to 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.
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 9
Introduction
Introduction
This symbol alerts you to the risk of electric shock.
This symbol alerts you to hazards that could cause harm to the
air conditioner.
This symbol indicates special notes.
NOTICE
Features
Anti-bacteria
Anti-bacteria
Air Outlet
Air Inlet
Remote
Controller
Symbols used in this Manual
WARNING: This appliance should be installed in accordance with national wiring
regulations. This guide acts as a guide to help to explain product features.
10 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.
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.
Preferred method
Ensure proper ground
exists before use
Owner's Manual 11
Operating Instructions
Operating Instructions
Indoor Unit, Outdoor Unit
Anti-bacteria
Outdoor Unit
Air Intake
(side, rear)
Connecting Wire
Drain Hose
Power Wire
Connection Tube
Air Outlet
Vents
Heat pump model: Cassette Type Air Conditioner for cooling and heating
Cooling model: Cassette Type Air Conditioner for cooling
Anti-bacteria
Anti-bacteria
Air Outlet
Air Inlet
Remote
Controller
Operation Indication Lamps
Forced Operation : Operation procedures when remote control can't be used.
Defrost Mode : Lights up during defrost mode or hot start operation.
(heat pump model only)
Timer : Lights up during timer operation.
Signal Receptor : Receives the signal from remote control (signal receiving sound:
two short beeps and one long beep)
Filter Sign : Lights up after 2400 hours from the time of first operation.
On/Off : Lights up during system operation.
12 Ceiling Cassette Air Conditioner
Operating Instructions
Name and Function of Remote Controller
Operation indication screen
Set temperature button
Wireless remote controller
Receiver
• Some kind of product could not
receive wireless signal.
Ventilation button
Operation mode selection
button
Sub-function button
Function setting button
Exit button
On/ Off button
Room temperature button
Fan speed button
Air flow button
Reservation/ Time setting
button
Setting/ Cancel button
Up, Down, Left, Right
Reset Button
1
9
11
12
3
5
6
2
4 10
16
13
14
7
8
15
12V SIG GND
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
Connection Cable
(1EA, 10m)
Remote controller screw
(4 EA)
Owner's / Installation
manual
Wired remote controller
installation board
Accessory
❊ Some functions may not be operated and displayed depending on the product type.
❊ For detail usage except 'PQRCUSA0' model, refer to each manual.
PQRCUSA0
Owner's Manual 13
Operating Instructions
Cooling mode (Standard operation)
Cooling mode (Power Cooling)
It makes the room cool using pleasant and fresh air
It makes the room cool using pleasant and fresh air quickly
What is power cooling?
• Desired temperature: 18°C
• Fan Speed: special high cool (Power air)
❈ It quickly lowers the room temperature by
operating.
1. Press button to turn on
airecondition
1. Press button to turn on
airecondition
2. Press button to select Cooling
operation mode
3. Press button continuously until
"Po" displayed
2. Press button to select Cooling
operation mode.
3. Adjust the desired temperature 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)
14 Ceiling Cassette Air Conditioner
Operating Instructions
Heating mode (Heat pump model only)
Dehumidification
1. Press button
2. Press button to select Heating
operation mode.
3. Adjust the desired temperature by
pressing buttons.
When setting the desiredtemperature
lower than room temperature, there is
only ventilation wind.
1. Press button, then
2. Press button to select
Dehumidification mode.
The temperature setting can not be
adjusted during operation this mode.
3. Press the button to select airflow
rate SLO → LO → MED → HI →
(NONE)→
(The lists depends on products
function)
In rainy season or high humidity climate, it is possible
to operate simultaneously dehumidifier and cooling
mode to remove humidity effectively.
The airflow rate selection can be different or inactive
according to product.
❖ Setting Temp Range : 16˚C~30˚C (60˚F~86˚F)
❖ NONE : Power level of Fan Speed
Owner's Manual 15
Operating Instructions
Auto Change Over mode (Heat pump model only)
Auto Operation mode
1. Press button
1. Press button
2. Press button to select Auto
Operation mode.
3. Incase of operating under only
cooling mode, set '0' as standard
level, we can adjust the temperature
from step -2 to step 2
During operating Auto Operation mode:
• FAN SPEED button can be used.
• Manually other operation mode can be changed.
2. Press button to select Auto
Change Over mode.
3. The setting temperature as the right
side picture can be set in both
cooling/ heating model
❖ Setting Temp Range : 18˚C~30˚C (64˚F~86˚F)
Please select the code defend on your feeling.
Currently When feeling When feeling When feeling When feeling When feeling
feeling cold slightly cold moderate slightly hot hot
code 2 1 00 -1 -2
16 Ceiling Cassette Air Conditioner
Operating Instructions
Fan mode
1. Press button
2. Press button.
3. Press the button to select airflow
rate SLO → LO → MED → HI →
(NONE)→
(The lists depends on products
function)
• When operate wind mode, the outdoor compressor
doesn't work
• FAN operation doesn't bring out cold air but air from
regular fan comes out.
• Have a function to circulate the indoor as it sends
out the air that doesn't have much temperature
difference with indoor.
Owner's Manual 17
Operating Instructions
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
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.
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
2
18 Ceiling Cassette Air Conditioner
Sub function : Plasma Purification
Repeat pressing button
until icon flash.
1
Operate or cancel Plasma
Purification function by pressing
button.
( icon appears/disappears on
display part up
to selection )
2
After setting, press button
to exit.
3
Operating Instructions
Airflow setting
1. Press buttons to set the desired airflow
direction.
• → → →
• Display of these lists depends on products
function,
We can simply adjust the desired airflow rate
Symbol Description
Swril : vane paired opend cross
Up·Down : Vane move from up to down
automatically and continuously
Left·Right : Vane move from left to right
automatically and continuously
Details:
When turn the machine off, Plasma function is off (And also off when restart indoor)
In case of such model that has no Plasma sub function, it doesn't appear when pressing button.
❈ Some functions may not be operated and displayed
depending on the product type.
Owner's Manual 19
Operating Instructions
Function setting : Filter Sign Clear
Function setting : Child Lock
This function is to clear the indicator of
indoor filter cleaning.
• Press button
• Repeat pressing button until the icon
flash.
• When the flashing, press the button 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.
This function is to prevent children or
other people from using indoor.
• Press button
• Repeat pressing button until the
LOCK icon flash.
• When the button flashing, press the button to
set this function.
• When setting this function, the icon will be
displayed whenever entering any operation
except for Room temperature access. However,
it is possible to control normally by wireless
remote controller.
To release this setting, keep
pressing button until the
icon flash and then enter
the button.
20 Ceiling Cassette Air Conditioner
Operating Instructions
Function setting : Elevation grill
This function is to move the indoor filter
up/ down for cleaning filter.
The setting is able to apply only to
product that has this function
• Press button
• Repeat pressing button until the icon
flash
• Press button to control the grill Up/
Down or stop it
• button: move grill up from stopping or stop
grill from moving
• button: move grill down from stopping or
stop grill from moving.
Indication with LCD: Up-UP,
Down-DN, Stop-SP
3. After setting, press button to exit or system
will automatically release without input after 60
seconds.
Details:
In case of such model that has no this
sub function, it doesn't appear when
pressing SUBFUNCTION button.
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