You can find them on quality label and front of base pan 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 an 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.
Ownerʼs Manual 3
ENGLISH
Safety Precautions
Safety Precautions
WARNING
WARNING
n Installation
Don't do this!
Be sure to follow the instruction.
Donʼt use a power cord, a
plug, or a loose socket
which is damaged.
• It may cause a fire or electrical
shock.
Always plug into a grounded
outlet.
• It may cause a fire or electrical
shock.
Do not modify or extend the
power cord length.
• It will cause electric shock or fire
due to heat generation.
Do not disassemble or
modify products.
• It may cause failure and
electric shock.
Be caution when unpacking
and installing.
• Sharp edges may cause
injury.
Do not use the power cord near
flammable gas or combustibles
such as gasoline, benzene,
thinner, etc.
• It may cause explosion or fire.
Following instructions must be followed to prevent injury to the user and property damages.
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.
CAUTION
Meanings of symbols used in this manual are as shown below.
This symbol indicates the possibility of injury or damage to properties only.
Gasolin
4 Room Air Conditioner
Safety Precautions
n Operation
Do not place the power cord
near a heater.
• It may cause fire and electric
shock.
Do not allow water to run
into electric parts.
• It will cause failure of machine or
electric shock.
Use a soft cloth to clean. Do
not use wax, thinner, or a
strong detergent.
• The appearance of the air
conditioner may deteriorate,
change color, or develop
surface flaws.
Ventilate the room well when
using this appliance
together with a stove, etc.
• Oxygen depletion could occur.
Turn off the power and
breaker when cleaning the
unit.
• Moving parts could cause injury.
Turn off the main power
switch when not using it for
a long time.
• Prevent accidental startup and
the possibility of injury.
Unplug the unit if strange
sounds, odors, or smoke
come from it.
• It could represent a fire hazed.
Do not open the suction
inlet grill of the product
during operation.
• Otherwise, it may electrical
shock and failure.
If water enters the product, turn
off the the power switch of the
main body of appliance. Contact
service center after taking the
power plug out from the socket.
Do not place objects on the
power cord. Protect the
cord from being pinched or
damaged.
• There is danger of fire or electric
shock.
Use a dedicated circuit for
this appliance.
• An overloaded circuit is a fire
hazard.
Take the power plug out if
necessary, holding the end
of the plug and do not touch
it with wet hands.
• It may cause a fire or electrical
shock.
Thinner
Wax
Ownerʼs Manual 5
ENGLISH
Safety Precautions
CAUTION
n Installation
Do not operate or stop the
unit by inserting or pulling
out the power plug.
• It will cause electric shock or fire
due to heat generation.
Do not damage or use an
unspecified power cord.
• It will cause electric shock or fire.
Do not operate with wet
hands or in damp
environment.
• It will cause electric shock.
Hold the plug by the end
when taking it out.
• It may cause electric shock and
damage.
When gas leaks, open the
window for ventilation
before operating the unit.
• Otherwise, it may cause an
explosion and a fire.
Never touch the metal parts
of the unit when removing
the filter.
• They are sharp and may cause
injury.
Install the product so that the noise or
exhaust from the outdoor unit may not
cause any damage to the neighbors.
• Be considerate of your neighbor.
Be sure the product is level front-to-back
and side-to-side when installing.
• It may cause vibration or water leakage.
For inner cleaning, contact an Authorized Service Center or a dealer.
Do not use harsh detergent that causes corrosion or damage on the unit.
• Harsh detergent may also cause failure of product, fire, or electronic shock.
6 Room Air Conditioner
Safety Precautions
n Operation
Be cautious not to touch the
sharp edges when installing.
• A severe cut or other injury could result.
Avoid excessive cooling and
perform ventilation sometimes.
• Use the ventilation function to circulate
air without cooling or heating
Do not insert hands or other
objects through the air inlet or
outlet during operation.
• Electrical and moving parts could cause
shock or injury.
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.
Do not put a pet or house plant
where it will be exposed to direct
air flow.
• It is not good to sit in the draft.
Do not block the inlet or outlet of
air flow.
• It may cause product failure.
Use a soft cloth to clean. Do not
use wax, thinner, or a strong
detergent.
• The appearance of the air conditioner
may deteriorate, change color, or
develop surface flaws.
Do not step on the indoor/outdoor
unit and do not put anything on it.
• It may cause an injury through dropping
of the unit or falling down.
Always insert the filter securely.
Clean it every two weeks.
• Operation without filters will cause
failure.
Do not drink water drained from
the air conditioner.
• It contains every contaminant
condensed from the air and could cause
health issues.
Ownerʼs Manual 7
ENGLISH
Before Operation
Before Operation
1. Contact an installation specialist for installation.
This is NOT a do-it-yourself project.
2. Plug in the power plug properly.
3. Use a dedicated circuit.
4. Do not use an extension cord. Consult a professional installer or electrician.
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. In other words, don't sit in the draft.
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 unitʼs 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
8 Room Air Conditioner
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
Introduction
Symbols Used in this Manual
Features
This air conditioner should be installed in accordance with the National Electric Code.
Expanded Metal Grille Should be applied for better performance in PTAC and PTHP Units.
For Installation purpose and better appearance Aluminium or Architectural grille can be applied in
PTAC and PTHP Units.
THE SLEEVE AND THE REAR GRILLE
VERTICAL AIR DEFLECTOR
(Horizontal Louver)
(Available as an option)
SLEEVE ASSEMBLY
REAR GRILLE
(Aluminum Rear Grille)
Architecture Rear Grille
AIR FILTER
FRONT GRILLE
(Air Intake)
INDOOR
EXPANDED METAL GRILLE
Ownerʼs Manual 9
ENGLISH
Electrical Safety
Electrical Safety
Electrical Data
Use Wall ReceptaclePower Supply
Standard 208/230V, 3-wire
grounding receptacle rated 15A
Standard 208/230V, 3-wire
grounding receptacle rated 20A
Standard 208/230V, 3-wire
grounding receptacle rated 30A
Standard 265V grounding
receptacle rated 20A
Standard 265V grounding
receptacle rated 30A
Use 15 AMP. time
delay fuse or 15 AMP.
Circuit breaker.
Use 20 AMP. time
delay fuse or 20 AMP.
Circuit breaker.
(2500W Heater ơ15AMP.
Circuit Breaker)
Use 30 AMP. time
delay fuse or 30 AMP.
Circuit breaker.
Use 20 AMP. time
delay fuse or 20 AMP.
Circuit breaker.
Use 30 AMP. time
delay fuse or 30 AMP.
Circuit breaker.
Never push the test button during
operation
Otherwise this plug can damaged.
This device contains chemicals, including
lead, known to the State of California to
cause cancer, birth defects, or other
reproductive harm.
Wash hands after handling.
Do not remove, modify, or immerse this plug.
If this device trips, the cause should be
corrected before further use.
The conductors inside this cord are
surrounded by shields, which monitor
leakage current.
These shields are not grounded.
Periodically examine the cord for any
damage. Do not use this product in the
event the shields become exposed.
Avoid shock hazard! This unit cannot
be serviced. Opening the tamperresistant, sealed portion of the unit
voids all warranties and performance
claims. This unit is not intended to be
an ON/OFF switch.
The shape may be different according to its model.
NOTICE
DO NOT USE AN EXTENSION CORD on 230,
208, and 208/230, 265 Volt units.
All wiring should be made in accordance with local
electrical codes and regulations.
Aluminum house wiring may pose special
problems. Consult a qualified electrician.
NOTICE
208/230V~265V~
Power cord may include a current interrupter device.
A test and reset button is provided on the plug case.
The device should be tested on a periodic basis by first
pressing the TEST button and then the RESET button.
If the TEST button does not trip or if the RESET button
will not stay engaged, discontinue use of the air
conditioner and contact a qualified service technician.
*In the case of 265V power cord doesn’t have current
interrupter device.
10 Room Air Conditioner
Electrical Safety
IMPORTANT
(PLEASE READ CAREFULLY)
FOR THE USER'S PERSONAL SAFETY, THIS
APPLIANCE MUST BE PROPERLY GROUNDED
The power cord of this appliance is equipped with a
three-prong (grounding) plug. Use this with a standard
three-slot (grounding) wall power outlet to minimize
the hazard of electric shock. The customer should
have the wall receptacle and circuit checked by a
qualified electrician to make sure the receptacle is
properly grounded.
DO NOT CUT OR REMOVE THE THIRD (GROUND)
PRONG FROM THE POWER PLUG.
A. SITUATIONS WHEN THE APPLIANCE WILL BE
DISCONNECTED OCCASIONALLY
Because of potential safety hazards, we strongly
discourage the use of an adapter plug. However, if
you wish to use an adapter, a TEMPORARY
CONNECTION may be made. Use UL-listed adapter,
available from most local hardware stores.
The large slot in the adapter must be aligned with the
large slot in the receptacle to assure a proper polarity
connection.
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. The customer should
have the circuit checked by a qualified electrician to
make sure the receptacle is properly grounded.
Disconnect the power cord from the adapter, using
one hand on each. Otherwise, the adapter ground
terminal might break. DO NOT USE the appliance with
a broken adapter plug.
B. SITUATIONS WHEN THE APPLIANCE WILL BE
DISCONNECTED OFTEN
Do not use an adapter plug in these situations.
Unplugging the power cord frequently can lead to an
eventual breakage of the ground terminal. The wall
power outlet should be replaced by a three-slot
(grounding) outlet instead.
USE OF EXTENSION CORDS
Because of potential safety hazards, we strongly
discourage the use of an extension cord. However, if
you wish to use an extension cord, use a CSA
certified/UL-listed 3-wire (grounding) extension cord.
Electrical Safety
Ownerʼs Manual 11
Installation
Installation
How to Install the Unit
• Need 2 people to lift up air conditioner, it is HEAVY.
For existing sleeve, you should measure the wall sleeve
dimensions.
You can install the new air conditioner according to these
installation instructions to achieve the best performence. All
wall sleeves used to mount the new air conditioner must be in
good structural condition and have the rear grille that securely
attached to the sleeve or the flange of the sleeve to secure the
new air conditioner.
• To avoid vibration and noise, make sure the unit is installed
securely and firmly.
When installing the sleeve & Front grille, make certain there is
nothing within 21 ” back & front of sleeve & front grille, that
would interfere with heat radiation and exhaust air flow.
• Before installation, Check the insulation on the inner side of
the sleeve. If there is no insulation, place the insulation.
• Check the bottom corner's joint gap of the sleeve, If there is,
fill the gap with putty.
Dimension of air conditioner
1,066 mm
(42")
406 mm
(16")
349 mm
3
(13
/4")
536 mm
(21")
Dimension of sleeve assembly (optional)
1066 mm
(42")
Insulation
Joint Gap
349 mm
3
/4")
(13
406 mm
(16")
ENGLISH
NOTICE
To maintain the best performance
of LG PTAC
1. An insulation strip must be attached. The
insulation strip is provided with the box.
2. After assembly of sleeve & front grille, the
gap should be over 20” from both sleeve &
grille. For assembly PTAC Model refer the
diagram.
1) Take out the insulation strip from the upper packing.
2) Attach the insulation strip onto the rear upper side of the
wall sleeve.
INSULATION
COOLED
AIR
INTAKE
AIR
1/4" Bubble
of the level
Over 20"
280 mm
(11")
WALL
WALL
Insulation Strip
Front
Sleeve
Rear
SLEEVE
HEAT
RADIATION
Over 20"
Installation
• UNIT INSTALLATION
1. Remove the shipping screw from the ventilation door.
2. Remove the front gille by pulling it out at the bottom
to release it, then lift it up along the unit top front.
3. Remove cover by removing 3 screws from front.
4. Connect accessory power supply cord, and fix power
cord to basepan with screws.
ELECTRIC HEATER RATING
(CONFIGURATION BASED ON POWER CORD)
POWER CORD
AYUH21152 400/2 300 W
AYUH2120
AYUH2130
VOLTAGE
230/208
230/208
230/208
HEATER
WATTS
3 300/3 200 W
HEATERMAX.
CURRENT
FUSE SIZE
10.5/11.2 A
14.5/15.5 A
20.6/22.3 A
15 A
20 A
30 A4 700/4 600 W
MIN.CIRCUIT
AMPACITY
14.5 A
19.8 A
28.3 A
5. Replace cover with screws. Tighten securely.
6. Slide the unit into the wall sleeve and secure with
4 screws through the unit flange holes.
7. Reinstall the front grille by hooking the top over the
unit top, then pushing it in at the bottom.
12 Room Air Conditioner
Control Locations
INDOORIN
D
OO
R
Control Locations
Manual Controls
• VENTILATION
The ventilation lever is located to the lower left side
of the unit.
The ventilation lever must be in the CLOSE position in
order to maintain the best cooling & heating conditions.
When fresh air is necessary in the room, set the
ventilation lever to the OPEN position.
The Ventilation door is opened and outdoor air is
drawn into the room.
This will reduce the cooling or heating efficiency.
When the air conditioner has been running and is
turned off or set to the fan position, wait at least 3
minutes before resetting to the cooling & heating
operations.
Note:
A slight heat odor may come from the unit
when first switching to HEAT after the
cooling season is over.
This odor, caused by fine dust particles on
the heater, will disappear quickly.
This is harmless.
VENT
VENT
CLOSE
OPEN
Ventilation door
ENGLISH
• Failure to follow this caution may result in equipment
damage or improper operation.
• Blocking indoor(curtain or bedclothes etc.) or outdoor
discharge air could cause premature failure of unit.
If there has a gap between rear side of product &
•
outside wall, the air splitter need to be used on
unit.
Rear side of product
Air Splitter
Outside Wall
Ownerʼs Manual 13
Sleeve
Wall
Control Locations
Electronic Controls
FAN SPEED
• Every time you push this button, it cycles through the settings as follows:
{High(F2)
MODE
-
Push this button to cycle through the modes from
COOL
- COOL
• Fan runs continually for normal cooling operation.
- ENERGY SAVER
• The fan stops when the compressor stops cooling & heating
operations. Approximately every 3 minutes the fan will turn on and
the unit will check the room air temperature to determine if cooling
& heating is needed.
• For Energy saver operation Dip switch #2 is ON position. Refer
Dipswitch setting at P.No 16
- FAN
• Fan operation without heating or cooling.
- HEAT
• Fan runs continually for normal heating operation.
Low(F1) High(F2)}
°F
FAN HEAT COOL.
POWER
• To turn ON the air conditioner, push this button.
To turn OFF the air conditioner, push this button
again.
• This button takes priority over any other button.
TEMPERATURE SETTING
• Use this button to automatically control the
temperature of the room.
The temperature can be set within a range of
54°F (12°C) to 86°F (30°C) by increments of
1°F (0.5°C).
• The setting temperature in the display.
TIMER
- SHUT-OFF TIME
• You will usually use shut-off time while you sleep.
• If unit is running, use Timer to set number of hours until shut-off.
• For your sleeping comfort, once Time is set, the setting temperature will raise 2°F after 30 minutes, and once again
after another 30 minutes.
• Push Timer to cycle through the settings from 1 Hour
14 Room Air Conditioner
2 Hours ... 12 Hours maximum.
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