LG LW2512ER User manual

Life's Good
@
A! CONDITIONER
Please read this manual carefully before operating
your set and retain it for future reference.
TN_I: WINDOW
MODEL:LW2512ER
P/NO:MFL67454601 www.lgappliances.com

,o
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
l! 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 insts|ler for insta|lation 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 shah be performed by authorized personnel only
using on|y genuine replacement parts.
, Installation work must be performed in accordance
with the National Electric Code by qua|ified and
authorized personne| only.
2 Room Air Conditioner

SafetyPrecautions
To prevent injury to the user or other people and property damage, the following instructions
must be followed.
m Incorrect operation due to ignoring instruction will cause harm or damage. The seriousness
is classified by the following indications.
WARNING This symbol indicates the possibility of death or serious injury. /
,_CAUT_ON This symbol indicates the possibility of injury or damage to properties only.
[] Meanings of symbols used in this manual are as shown below.
Q Be not to do.
sure
Be sure to foflow the instruction.
f, WARNING ,,,.
installation
• Otherwise, it may cause a fire
or electrical shock.
• It may cause failure and
electric shock.
Otherwise, it may cause a fire
or electrical shock.
®Sharp edges may cause
injury.
•It will cause electric shock or fire
due to heat generation.
\
®
•It may cause explosion or fire.
Owner's Manual 3

SafetyPrecautions
[] Operation
•Thereis dangerof fireor electric
shock.
•It may cause fire and electric
shock.
•It will cause electric shock or fire
due to heat generation.
•It will cause failure of machine or
electric shock.
.Otherwise, it may cause a fire
or electrical shock.
•The appearance of the a_r
conditioner may deteriorate,
change color, or develop surface
flaws.
®
.Otherwise it may cause fire and
electric shock accident.
J
QAn oxygen shortage may occur.
•Otherwise, it may electrical
shock and failure.
• Since the fan rotates at high
speed during operation, it may
cause injury.
* Prevent accidental startup and
the possibility of injury.
4 Room Air Conditioner

SafetyPrecautions
, It will cause electric shock or fire
due to heat generation.
-2 1
• It will cause electric shock or fire. ,,It will cause electric shock.
• It may cause electric shock and
damage. ®
, Otherwise, it may cause
explosion, and a fire.
®
•Theyaresharpandmaycause
injury.
[] Installation
_,_,CAUTION
,,Otherwise, it may cause dispute with the
neighbors. Otherwise, it may cause vibration or water leakage.
6
<
Owner's Manual 5

Safety Precautions
[] Operation
• mtmay cause injury. mtmay cause product failure. oThe appearance of the air
conditioner may deteriorate,
change color, or develop surface
flaws.
\ \\
It may cause an injury through
dropping of the unit or falling
down.
It may cause injury.
- Operation without filters will
cause faimure.
Otherwise, it may do harm to
your health.
o It contains containments and will
make you sick.
,Thechemicalsin batteriescouldcauseburnsor
/
otherhealthhazards.
6 Room Air Conditioner
, Thechemicals in batteriescould cause burns or
other healthhazards.
Otherwise, it may cause
personal injury.

Before 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.
Owner's Manual 7

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 installedin accordance with the National Electric Code.
VERTICAL AiR DEFLECTOR
HORIZONTAL LOUVER)
HORIZONTAL AiR DEFLECTOR
(VERTICAL LOUVER)
AiR DISCHARGE
FRONT GRILLE --
AiR FILTER AiR iNTAKE (iNLET GRILLE)
BRACE
EVAPORATOR--
CONTROLPANEL
REMOTE CONTROLLER --
COMPRESSOR
CONDENSER
BASE PAN
POWER CORD
8 Room Air Conditioner

ElectricalSafety
115V~
T
qq= ,_j
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.
The shape may be different accordin_ to its model.
Use Wall Receptacle Power Supply
@
Standard 125V,3-wiregrounding
receptacle rated 15A_ 125VAC Use 15AMP. time
delay fuse or 15AMP.
(_ circuit breaker.
Standard 250V, 3-wire grounding
receptacle rated 15A, 250V AC
(_ Use 20 AMP. time
delay fuse or 20AMP.
circuit breaker.
Standard 250V, 3-wire grounding
receptacle rated 20A, 25OVAC
DO NOT USE AN EXTENSION CORD on 230,
208, and 230/208 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.
,AWARNING
Never push the test button during
operation
Otherwise this plug can damaged.
This device contains chemical, including
lead, known to the State of California to
cause cancer, and birth defects or other
reproductive harm.
Wash hands after handling.
Do not remove, modify or immerse this plug.
Ifthis device trips, the cause it to be
corrected before further use.
CAUTION
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 can not
be user serviced opening the tamper
resistant. Sealed portion of the unit
voids all warranties and performance
claims. This unit not intended for use
as an on-off switch.
Owner's Manual 9

ElectricalSafety
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 pomarity
connection.
,_ CAUTION
: Attaching the adapter ground terminal to the waft
receptacle cover screw does not ground the appliance
unless the cover screw is metal, and not insulated, and
the waft receptacle is grounded through the house
wiring. The customer should have the circuit checked
by aqualified 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 appmiance 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,
rated at 20A, 250V.
10 Room Air Conditioner

Installation
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.There should be no obstacles, such as a fence
and 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.
,& CAUTION
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.
Cooled air Heat
IZ_ radiation
Over 20"
Fence
All supporting parts should be secured to firm
wood, masonry, or metal.
• This unit is designed for installation in standard
double hung windows with actual opening widths
from 29"
to 41".
• The top and bottom window sash must open
sufficiently to allow a clear vertical opening of 19"
from the bottom of the upper sash to the window
stool.
I: " _ j-isash
29" to 41"--_
19"min. _ ,. ,
IInner sill .-J, _wlnaow
1 "_" "1]_< ""/_Offset
26" min. _
I (Withoutflamecurtain)/
Owner's Manual 11

Installation
NO. NAME OF PARTS Q'TY
1 FRAME CURTAIN 2
2 SUPPORT BRACKET 2
3 SILL BRACKET 2
4 LOCK NUT 4
5 SCREW (TYPE A) 11
6 SCREW (TYPE B) 7
7 SCREW (TYPE C) 5
8 SCREW (TYPE D) 2
9 CARRIAGE BOLT 2
10 FOAM STRIP 1
11 FOAM SEAL 1
12 WINDOW LOCKING BRACKET 1
13 DRAIN PIPE 1
14 FRAME GUIDE 2
SCREWDRIVER(Phflips and Flatead), RULER, KNIFE, HAMMER, PENCIL, LEVEL ]
PREPARATION OF CHASSIS
1. Remove the screws which fasten the cabinet at
both sides and at the back. Screws
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-Seal @
to the underside of the window sash.
4. Insert the Frame Guides 4b into the bottom of the
cabinet.
5. Insert the Frame Curtain O into the Upper Guide
and Frame Guides Q.
6. Fasten the curtains to the unit with 10 Type
A screws 6).
(Type A) __
12 Room Air Conditioner

Installation
1.Open the window. Mark a line on the center of the
window stool between the side window stop
moldings.
Loosely attach the sill bracket to the support
bracket using the carriage bolt and the lock nut.
Bracket (_) (_£_%_ _ Ill _--iSupp Ort
...... J I i _bL-----__ II II I Bracket®
Co , ri V [ O--Lockoot®
Fig. 1
2. Attach the sill bracket to the window sill using the
screws (Type B).
Carefully place the cabinet on the window stool
and align the center mark on the bottom front with
the center line marked window stool.
3. Using the M-screw and the lock nut, attach the
support bracket to the cabinet track hole. Use the
first track hole after the sill bracket on the outer
edge of the window sill. Tighten the carriage bolt
and the lock nut. Be sure the cabinet slants
outward.
,& CAUTION
Do not drill a hole in the bottom pan. The unit is
designed to operate with approximately 1/2" of
water in bottom pan.
Cabinet
Trackhole
screw(TypeD)
andlock nut
Support sill
Bracket
Carriage bolt
and lock nut
J
Upper
Guide
(_) (TypeB)
®
Fig. 2
stool
Fig. 3
4. Pull the bottom window sash down behind the Top
retainer bar until they meet.
t. Do not pull the window sash down so tightly
that the movement of Frame curtain is restricted.
Attach the cabinet to the window stool by driving
the screws (Type B) through the cabinet into
window stool.
2.The cabinet should be installed with a very slight
tilt downward toward the outside.
Windowsash
Foam_
Framecurtain
Foam-PE
Owner's Manual 13

Installation
5. Pull each Frame curtain fully to each window sash
track, and pull the bottom window sash down
behind the Top retainer bar until it meets.
6. Attach each Frame curtain the window sash by
using screws (Type C.) (See Fig. 6)
\
(_)Screw(Type B)
Sashtrack
_ Front Angle
Fig. 5
" :i, I " O(Type C)
Fig.6
7. Slide the unit into the cabinet.(See Fig. 7)
A CAUTION
For security purpose, reinstall screws(Type A)
at cabinet's sides.
8. Cut the Foam-strip to the proper length and insert
between the upper window sash and the lower
window sash.(See Fig. 8)
9. Attach the Window locking bracket with a screw
(Type C.) (See Fig. g)
Screw
Power Cord Screw
%Fig, 7
ig
bracket
Fig, 9
14 Room Air Conditioner

10.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 Fig.lO)
Installation
11. Lift the inlet grille and secure it with a screw
(Type A) through the front grille.(See Fig. 10)
12.Window installation of room air conditioner is now
completed. See ELECTRICAL DATAfor attaching
power cord to electrical outlet.
Fig. 10
You can choose between two methods below according to your window stool shape and preference.
• Fasten the stopper using 2 screw holes, and lead
out the power cord through slit "A".
Power (
• Fasten the stopper using left screw hole, and rotate
properly to lead the power cord out through slit "B".
I@
Owner's Manual 15

OperatingInstructions
POWER
Operation starts when this button is pressed and stops when you
press the button again.
FAN SPEED SELECTOR
For increased power while cooling,select a higher fan speed.
3steps:High Low Med.
_ ON/OFF TIMER
The Timer can be set to start and stop the unit in hourly increments
(up to 24 hours) .
You wilt usually use shut-off time while you sleep.
For your sleeping comfort, once timer is set, the temperature setting will
raise 2°F after 30min and once again after another 30min.
OPERATION MODE SELECTOR
, Everytimeyoupushthisbutton,itwilltogglebetweenCOOL,FAN,andDRY.
Cool:
Compressor runs and cools the room°
Use the A /V and FAN buttons to
set the desied temperature and circulation fan speed.
Energy Saver:
The fan stops when the compressor stops cooling.
Approximately every 3 minutes the fan wilt turn on
and check the room air tedetermine of cooling is need.
Fan:
Fan circulate air but compressor does not run.
Use the FAN button to set the desired fan speed.
Owner's Manual 17

OperatingInstructions
Select dry mode for dry operation.
Dry: dry model is used to remove humidity from the room without additional cooling.
Once the set temperature is reached, the compressor and circulation fan turns off.
Fan speed is pre-set and cannot be adjusted.
TEMPERATURE CONTROL
The thermostat monitors room temperature to maintain the desired temperature.
The thermostat can be set between 60°F~86°F(16°C~30°C).
The unit takes an average of 30 minutes to adjust the room temperature by I°F.
REMOTE CONTROL SENSOR
_ure of electric power, the unit runs as previous setting operation,
AkCAUTION
The Remote Controller will not function properly if strong light strikes the sensor window
of the air conditioner or if there are obstacles between the Remote Controller and the air
conditioner.
1.Push out the cover on the back of the remote control with your thumb
2. Pay attention to polarity and insert two new AAA 1.5V batteries.
3. Reattach the cover.
Do not use rechargeable batteries. Make sure that both batteries are new.
Do not mix alkaline, standard(Carbon-zinc) or rechargeable(NickeFcadmium)
batteries.
In order to prevent discharge, remove the batteries from the remote control ifthe
air conditioner is not going to be used for an extended period of time
Keep the remote control away from extremely hot or humid places.
To maintain optimal operation of the remote control, the remote sensor should
not be exposed to direct sunlight.
•The remote control can be mounted on a wall using the mountable holder.
18 Room Air Conditioner

OperatingInstructions
The ventilation lever must be in the CLOSE position in order to maintain the best cooling conditions.
When fresh air is necessary in the room, set the ventilation lever to the OPEN position.
The damper is opened and room air is drawn out.
CLOSE VENT OPEN
Before using the ventilation feature, position the lever, as
shown. First, pull down part ® to horizontal line with part®°
PaPt{_
Airflow can be adjusted by changing the direction of the air conditioner's louvers. This can also increase the
cooling efficiency of the air conditioner.
Adjusting Horizontal Air Flow
Direction
Adjusting the vertical louvers left and right will
change horizontal airflow.
Adjusting Vertical Air Flow Direction
Adjusting the horizontal vane up and down will
change vertical airflow. The vane can be adjusted by
nudging the vane backward or forward.
\
\
Adjusting vertical air flow
Recommended orientation of louvers
Adjust louversto faceupwardswhen coolingtomaximizecoolingefficiency.
When the unit operates on extremely hot weather, it turns off automatically to protect compressor.
18 Room Air Conditioner

OperatingInstructions
The air conditioner employs a proper drain method whereby the condensed water (moisture removed from the
air) is drained to the outside,
In very humid weather, (and for reverse cycle models inthe reverse mode) excessive condensate water
removed from the air may cause some water to collect. To remove this excess water you can install the drain
pan as detailed below,
t. Take the drain pan which is located in the air discharge.
2. Remove the hole rubber from the base-pan (for some models).
3. Install the drain pan to the right corner of the cabinet with 4 (or 2)
screws.
4. Connect the drain hose of 3/5" inside diameter to the outlet located
at the bottom of the drain pan.You can purchase the drain hose or
tubing locally to satisfy your particular needs. (Drain hose is not
supplied),
CABINET
\\\
PAN _
sc W.0s?all
Owner's Manual 19

MaintenanceandService
Turn the power off and unplug the power plug before cleaning the air conditioner.
The air filter behind the inlet grille should be checked and cleaned at least once every 2 weeks (or as
necessary) to maintain optimal performance of the air conditioner.
How to remove the air filter
1.The grille may be opened from the top for easy
maintenance after installation.
2. Open the inlet grille by pulling off the exposed door
on the top of the unit (based on installation).
3. Pull the tab slightly to release the filter. Pull the
filter in the same direction as the opening.
4. Clean the filter with warm, soapy water. The water
should be below 40°C (t04°F).
5. Rinse off and gently shake off excess water from
the filter. Let it dry before replaceing it.
The base pan may overflow due to high humidity. To drain the
excess water, remove the drain cap from the back of the unit
and secure the drainpipe.
When pressing the drainpipe into place, apply force in the
direction away from the fins to avoid injuring yourself.
Drain cap
20 Room Air Conditioner