LG Comfort-Aire RAD-141A User manual

RAD-141A
RAD-121A
RAD-123A
RADS-101A
(RADS-101A)

2Room Air Conditioner
FOR YOUR RECORDS
Write the model and serial numbers here:
Model #
Serial #
You can find them on a label on the side of the product.
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.
Safety Precautions..........................3
Before Operation ............................7
Introduction ....................................8
Symbols Used in this Manual ........8
Features ........................................8
Electrical Safety
.............................9
Temporary Use of an
Adapter ........................................1
1
Temporary Use of an
Extension Cord
............................1
1
Electrical Data...
Installation ....................................12
Window Requirements ................13
Size ...........................................13
Select the best location ..........13
Preparation of Chassis ...............14
Unit Installation ............................15
Operating Instructions
.................17
Location and F unction
ofControls....................................17
AdditionalF
eatures.......................20
Remote Control OperationsRemote Control Operations
AirDirection
..............................20
Drain Pipe
................................20
Maintenance and Service
............21
Air Filter ....................................21
Cleaning the Air Conditioner .....21
How to Remove the
Front Grille .................................22
Common Problems and
Solutions.......................................23
Troubleshooting ............................24
Window-Type Air Conditioner Owner’s Manual
TABLE OF CONTENTS
PRECAUTION
•Contact an Authorized Service Center for repair or
maintenance of this unit. Call 1-877-755-7932 to
locate the nearest ASC.
•This 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.
•If the power cord requires replacement, have an
Authorized Servicer install an exact replacement part.
•Installation work must be performed in accordance
with the National Electric Code by qualified and
authorized personnel only.
.............................9
.......................18
Remote Control Remote Controller Remote Controller
.......................19

Owner’s Manual 3
ENGLISH
Safety Precautions
To prevent injury to the user or other people and property damage, the following instructions
must be followed.
■Incorrect operation due to ignoring instructionswill cause harm or damage.The seriousness
is classified by the following indications.
■Because of the weight of the product, it is recommended that you have a helper to assist in
the installation.
■Meanings of symbols used in this manual are as shown below.
WARNING
CAUTION
This symbol indicates the possibility of death or serious injury.
This symbol indicates the possibility of injury or damage to propertyonly.
WARNING
■Installation
Always install the expansion panel(s).
•Improper assembly or installation may cause
incorrect operation, including injury, fire, and
Do not place the power cord near a heater.
•It may cause fire and electric shock.
Do not use the power cord near flammable
gas or combustibles such as gasoline,
benzene, thinner, etc.
•It may cause explosion or fire.
Do not disassemble or modify products.
•It may cause failure and electric shock.
Be sure not to do.
Be sure to follow the instruction.
Safety Precautions
poor performance,electric shock hazards.

4Room Air Conditioner
Safety Precautions
■Operation
Plug in the power plug
properly.
•Otherwise, it will cause
electric shock or fire.
Do not operate or stop the
unit by inserting or pulling
out the power plug.
•It will cause electric shock or
fire.
Do not damage or use an
unspecified power cord.
•It will cause electric shock or
fire.
Unplug the unit if strange
sounds, odors, or smoke
come from it.
•Otherwise it may cause fire
and electric shock accident.
Do not use the socket if it is
loose or damaged.
•It may cause fire and electric
shock.
Do not operate with wet
hands or in damp
environment.
•It will cause electric shock.
Use the air conditioner on a
single outlet circuit.(see page 7.)
Do not share the outlet with
other appliances.
• It will cause electric shock or
fire.
Do not modify power corDo not modify poDo not modify po dwer cor
length.
Do not modify po
• •• It will cause electric shoc •k or
fire.
Always plug into a
grounded outlet.
•No•• grounding•may cause
electric shock.

Owner’s Manual 5
ENGLISH
CAUTION
■Installation
Safety Precautions
Never touch the metal parts
of the unit when removing
the filter.
•They are sharp and may
cause injury.
Do not block the inlet or
outlet.
•It may cause failure of
appliance or performance
deteriorate.
Ensure that the outer case
is not damaged by age or
wear.
•If the outer case is damaged,
it must be repaired or
replaced immediately.
Leaving it damaged could
result in the air conditioner
falling out of the window,
creating a safety hazard.
Close all doors, windows and other outside
openings to the room.
•The air conditioner must be operated in a
enclosed area to be most effective.
Do not operate the air conditioner if you
smell gas.
•It may cause explosion, fire, and burn.
If water enters the product, turn off the
power switch of the main body of appliance.
Contact service center after taking the power-
plug out from the socket.
•It will cause electric shock or failure of
machine.
Do not clean the air conditioner with water.
•Water may enter the unit and degrade the
insulation. It may cause an electric shock.

6Room Air Conditioner
Safety Precautions
Since the fan rotates at high
speed during operation, it may
cause injury.
Do not put a pet or house
plant where it will be
exposed to direct air flow.
This could injure the pet or
plant.
Do not use this appliance for
special purposes suchas
cooling pets, foods, precision
machinery, or objects of art.
It is an air conditioner, not a
precision refrigeration system.
Always insert the filter
securely.
Clean it every two weeks.
Operation without filters will
cause 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.
Unplug the air conditioner
before cleaning it.
Be cautious not to touch the
sharp edges when
installing.
It may cause injury.
Hold the plug by the hand
when taking it out.
It may cause electric shock
and damage.
Operation
Unplug the air conditioner
if it will not be used for a
long period.
Sharp
edges
•It will waste power
and it may cause accident.
Do not drink water drained
from air conditioner. Do not
direct airflow at room
occupants only.
•It is not sanitary and could
cause illness or personal
injury hazard.
(not the cable)

Owner’s Manual 7
ENGLISH
Before Operation
1. Plug in the power cord properly.
2. Use a dedicated circuit. Overloading the line could create a fire hazard.
3. Do not use an extension cord. See page 11for more details.
4. Do not start/stop operation by plugging/unplugging the power cord.
5. If the power cord is damaged and requires replacement, have an Authorized
Servicer install an exact 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.
4.The air conditioner is a consumer comfort appliance, not a precision climate
control system.
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 an Authorized Service Center. See the
warranty page for details or call 1-877-755-7932.Have your model number and
serial number available.They should be written on page 2 of this manual.
Before Operation
Preparing for Operation
Usage
Cleaning and Maintenance
Service

8Room 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.
WARNING: This appliance should be installed in accordance with
National Electric Code.
Introduction
Symbols Used in this Manual
Features
CABINET
FRONT GRILLE
AIR FILTER
AIR INTAKE
(INLET GRILLE)
AIR DISCHARGE
HORIZONTAL AIR DEFLECTOR
(VERTICAL LOUVER)
VERTICAL AIR DEFLECTOR
(HORIZONTAL LOUVER)
EVAPORATOR
CONTROL BOARD
EVAPORATOR
CONTROL BOARD
POWER CORD
BASE PAN
CONDENSER
COMPRESSOR
BRACE
POWER CORD
BASE PAN
CONDENSER
COMPRESSOR
BRACE
CABINET
FRONT
AIR FILTER
AIR INTAKE
(INLET GRILLE)
AIR DISCHARGE
HORIZONTAL AIR DEFLECTOR
(VERTICAL LOUVER)
VERTICAL AIR DEFLECTOR
(HORIZONTAL LOUVER)
REMOTE
CONTROLLER
Tip!
GRILLE

Electrical Safety
9
ENGLISH
Electrical Safety
Electrical Data
115V~ 230V~
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.
Use Wall Receptacle Power Supply
Standard 125V, 3-wire grounding
receptacle rated 15A, 125V AC
Standard 250V, 3-wire grounding
receptacle rated 15A, 250V AC
Use 15 AMP. time
delay fuse or 15 AMP.
circuit breaker.
Use 20 AMP. time
delay fuse or 20 AMP.
circuit breaker.
Standard 250V, 3-wire grounding
receptacle rated 20A, 250V AC
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, rated 15A,
125V.
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
ELECTRICAL SAFETY
IMPORTANT GROUNDING INSTRUCTIONS
Air conditioner has a three-prong grounding plug on
its power supply cord, which must be plugged into
properly grounded three-prong wall receptacle for
your protection against possible shock hazard.
230, 208, and 230/208 VOLT UNITS
These units are equipped with a three-prong
grounding plug on the power supply cord, which
must be plugged into a matching properly grounded
three-prong wall receptacle for your protection
against possible shock hazard. If such an outlet is
not present, one must be installed by a qualified
electrician in accordance with the National Electrical
Code and local codes and ordinances.
DO NOT USE AN EXTENSION CORD on 230,
208, and 230/208 Volt units.
NOTICE
,

WARNING: This appliance must be properly grounded.
The power cord of this appliance is equipped with a three-prong grounding plug.
To minimize the risk of electric shock, use the plug with a standard three-slot
grounding wall power outlet. If the power outlet does not include a grounding slot,
have a qualified electrician replace the outlet before you use the room air
conditioner.
WARNING: Changing the outlet without making the appropriate wiring
changes will create an unsafe condition that could result in fire or
electrical shock. Refer all such work to a licensed and qualified
electrician.
WARNING: Do not cut or remove the grounding prong from the power
plug.
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.
Electrical Safety
Preferred method
Ensure proper ground
exists before use
Electrical Safety
Room Air Conditioner10

We strongly discourage the use of an adapter due to potential safety hazards.
For temporary connections, use only a UL-listed adapter, available from most
local hardware stores. Ensure that the large slot in the adapter is aligned with
the large slot in the receptacle for a proper polarity connection.
To disconnect the power cord from the adapter, use one hand on each to avoid
damaging the ground terminal. Avoid frequently unplugging the power cord as
this can lead to eventual ground terminal damage.
WARNING: Never use the appliance with a broken adapter.
We strongly discourage the use of an extension cord due to potential safety
hazards. For temporary situations, use only CSA certified and UL listed 3-wire
grounded extension cords, rated 15 A, 125 V.
Electrical Safety
Temporary method
Adapter Plug
Receptacle Cover
Metal Screw
Temporary Use of an Adapter
Temporary Use of an Extension Cord
ENGLISH
Owner s Manual 11
,

Installation
Installation
Have the following tools available for installation:
* Screwdriver (Slotted and Phillips) * Ruler
* Knife * Hammer
* Pencil * Level
Type F:2EA
(SILL SUPPORT)
Type G:2EA
(BOLT)
Type C:5EA
(SCREW)
Type A:16EA
(SCREW)
Type D:2EA
(NUT)
Type K:2EA
(FRAME-GUIDE)
Type J:1EA
(FOAM-PE)
Type I:1EA
(UPPER GUIDE)
Type H:1EA
(FOAM-STRIP)
Type O:1EA
(DRAIN WASHER)
Type N:1EA
(DRAIN JOINT PIPE)
Type M:1EA
(FOAM-PE)
Type L:1EA
(WINDOW LOCKING BRACKET)
10
16mm
16mm
Type B:3EA
(SCREW)
Type E:2EA
(FRAME CURTAIN)
10mm
12 Room Air Conditioner

Installation
27" to 39"
Offset
1/2" to 11/4"
Sill
Exterior
Interior wall
23 5/8" min.
(Without frame curtain)
Sill
16" min
(With frame curtain)
Size
This room air conditioner is
designed for installation in standard
double-hung windows with actual
opening widths from 27" to 39".
The upper and lower window sash
must open sufficiently to allow a
clear vertical opening of 16" from the
window sill.
Window Requirements
About 1/2"
30"~60"
Awning
Cooled air
Fence
Over 20"
Heat
radiation
Select the best location
1. To prevent vibration and noise, make sure
the unit is installed securely and firmly
2. Install the unit where the sunlight does not
shine directly on the unit.
3. The outside of the cabinet must extend
outward for at least 12" and there should
be no obstacles, such as a fence or wall,
within 20" from the back of the cabinet
because it will prevent heat radiation of the
condenser.
Restriction of outside air will greatly reduce
the cooling efficiency of the air conditioner.
: All side louvers of the cabinet must remain exposed to the outside of the
structure.
4. Install the unit a little slanted so the back is slightly lower than the front(about 1/2").
This will force condensed water to flow to the outside.
5. Install the unit with the bottom about 30"~60" above the floor level.
WARNING:This product is a WINDOW AIR CONDITIONER. As such,
a standard single-hung or double-hung window is required for proper
installation. Non-window installations, including using sleeves, holes
in walls, and other installations are not recommended.
bottom of the upper sash to the
Tip!
Owner’s Manual 13
ENGLISHENGLISHENGLISH
ENGLISH

Installation
Preparation of Chassis
(Type A)
(Type A)
1. Remove the screws which fasten the cabinet
at both sides and at the back.
2. Slide the unit from the cabinet by gripping the
base pan handle and pulling forward while
bracing the cabinet.
3. Cut the window sash seal to the proper
length.
Peel off the backing and attach the Foam-PE
to the underside of the window sash.
4. Remove the backing from the top Upper Guide
Foam-PE and attach it to the bottom of the
Upper Guide
5. Attach the Upper Guide onto the top of the
cabinet with 3 Type A screws.
6. Insert the Frame Guides into the bottom of
the cabinet.
7. Insert the Frame Curtain into the Upper Guide
and Frame Guides.
8. Fasten the curtains to the unit with 4 Type
A screws.
Shipping
Screws
Use a long screwdriver and installing the
screws will be easier.
Tip!
Foam-Pe
Upper Guide
Foam-Pe
Upper Guide
Screw
Screw
(Type A)
Frame Guides
Screw Frame
Guides
14 Room Air Conditioner

Installation
Unit Installation
Caution: During the following step, hold unit firmly until window sash
is lowered to top channel behind side panel frames. Personal injury or
property damage may result if unit falls from window.
Upper Guide
Window Sash
Window Stool
Front Angle
Upper Guide
Frame Curtain
Foam-Pe
Foam-Pe
Cabinet
INDOOR OUTDOOR
INDOOR OUTDOOR
Sash Track
Front Angle
Cabinet
About 1/2"
About 1/2"
Sill Support
NutBolt
Frame Guide
Screw(Type B)
Screw(Type B)
Sill Support
Sill Support
Screw(Type A)
1. Open the window. Mark a line on
center of the window stool(or desired
air conditioner location).
Carefully place the cabinet on the
window stool and align the center
mark on the bottom front with the
center line marked in the window
stool.
2. Pull the bottom window sash down
behind the upper guide until it meets.
:Do not pull the window sash
down so tightly that the movement of
Frame Curtain is restricted.
3. Loosely assemble the sill support
using the parts in Figure 3.
4. Select the position that will place the
sill support near the outer most point
on sill (See Figure 4)
: Be careful when you install
the cabinet (Frame Guides will be
broken easily).
5. Attach the sill support to the cabinet
track hole in relation to the selected
position using 2 Type A screws in
each support(See Figure 4).
6. The cabinet should be installed with a
very slight tilt(about 1/2") downward
toward the outside (See Figure 5).
Adjust the bolt and the nut of sill
support for balancing the cabinet.
7. Attach the cabinet to the window stool
by driving the screws (Type B:Length
sixteen millimeters and below.) through
the front angle into window stool.
8. Pull each Frame curtain fully to each
window sash track, and repeat step 2.
Figure 1
Figure 2
Figure 3
Figure 4
Figure 5
Tip!
Tip!
Owner’s Manual 15
ENGLISHENGLISHENGLISH
ENGLISH

Installation
Type C
Screw(Type A)
Screw(Type A)
Power Cord
Foam-Strip
Window Locking Bracket
9. Attach each Frame Curtain the window sash
using screws(Type C).(See Figure 6)
: DO NOT DRILL A HOLE IN THE
BOTTOM PAN. The unit is designed to operate
with approximately 1/2" of water in bottom pan.
10. Slide the unit into the cabinet.(See Figure 7)
: For security purpose, reinstall
screws(Type A) at cabinet's sides.
11. Cut the Foam-Strip to the proper length
and insert between the upper window sash
and the lower window sash.
(See Figure 8)
12. Attach the Window Locking Bracket with
a Type C screw. (See Figure 9)
13. Attach the front grille to the cabinet by
inserting the tabs on the grille into the tabs
on the front of the cabinet. Push the grille
in until it snaps into place. (See Figure 10)
14. Lift the inlet grille and secure it with a Type
A screw through the front grille.
(See Figure 11)
15. Window installation of room air conditioner
is now completed. See ELECTRICAL DATA
for attaching power cord to electrical outlet.
Figure 6
Figure 7
Figure 8
Figure 9
Figure 10
Figure 11
Tip!
Tip!
16 Room Air Conditioner

CAUTION: If you turn off the air conditioner or switch from cooling to
the fan, wait at least 3 minutes before setting to cooling again.
Operating Instructions
Operating Instructions
Location and Function of Controls
FOR NORMAL COOLING
1. Turn the operation switch to the High Cool or the Low Cool setting.
2. Set the thermostat control to the desired temperature mark (the mid-point is a
good starting position). If the room temperature is not satisfactory after a
reasonable time, adjust the control to a cooler or warmer setting, as
appropriate.
FOR MAXIMUM COOLING
1. Turn the operation switch to the High Cool setting.
2. Set the thermostat control to the largest temperature mark.
FOR QUIETER OPERATION
1. Turn the operation switch to the Low Cool setting.
2. Set the thermostat control as needed.
O ff - Turns air conditioner off.
Me d Fa n - Med speed fan operation without cooling.
Low Fa n - Low speed fan operation without cooling.
High C ool - Cooling with high speed fan operation.
Me d C ool - Cooling with med speed fan operation.
Low C oo l - Cooling with low speed fan operation.
This automatically controls the temperature of the indoor air.
Turn the knob so that arrow points to the larger marks for greater cooling.
Point the arrow to the smaller marks for more moderate cooling.
(i.e. the higher the number, the greater the cooling)
4
3
2
1
6
7
9
5
Thermostat
  
Operation
8
Owner’s Manual 17
ENGLISHENGLISHENGLISH
ENGLISH
adju For fixed side-to-side air direction, set the
Auto Swing switch to ON until the desired air
direction is obtained, then move it to OFF.
Auto Swing
For continuous side-to-side air circulation (cool
settings only), set the Auto Swing switch to ON.
Auto Swing

t r
w f
1
2
3
4
5
6
7
Remote Control Operations
Operating Instructions

Low,Mid and High

CAUTION: Be careful when inserting the drain pipe. Push away from
the sharp fin area to avoid slipping injuring yourself.
Operating Instructions
Drain Pipe
In humid weather, excess water may
cause the Base Pan to overflow. To
drain the water, remove the Drain Cap
and secure the Drain Pipe to the rear
hole of the Base Pan.
Press the drain pipe into the hole by
pushing down and away from the fins
to avoid injury.
Drain Pipe Drain Cap
The direction of air can be controlled wherever you
want to cool by adjusting the horizontal louver and
the vertical louver.
HORIZONTAL AIR-DIRECTION CONTROL
The horizontal air direction is adjusted by
rotating the vertical louver right or left.
VERTICAL AIR-DIRECTION CONTROL
The vertical air direction is adjusted by
rotating the horizontal louver forward or
backward.
This air conditioner is equipped with a
slinger fan. (See drawing, below.)
The fan has an outer ring that runs in
the water that collects in the base pan
if it gets deep. That condensate is then
picked up by the fan and expelled
through the condenser, making the air
conditioner more efficient. Ring
Additional Features
Air Direction
20 Room Air Conditioner