LG | LWA18ERDFH1 | LG LWA18ERDFH1 Owner’s Manual

Please read this manual carefully before operating the unit.
Room Air Conditioner Owner’s Manual
TABLE OF CONTENTS
Safety precautions
Safety Precautions....................... 3
FOR YOUR RECORDS
Operating instructions
Write the model and serial numbers here:
About the Controls on the Air
Conditioner................................... 8
Care and Maintenance............... 11
Model #
Installation Instructions
Features..................................... 12
Installation Instructions............... 12
Serial #
You can find them on a label on the side of each unit.
Dealer's Name
Date Purchased
Troubleshooting tips
Before You
Call for Service............................14
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 infirm persons without supervision.
Young children should be supervised to ensure that
they do not play with the air conditioner.
We recommend usage of voltage stabilizer with
high / low voltage cut off in areas having voltage
fluctuations.
-2-
AC TONNAGE
STABILIZER KVA
(3-STEP STABILIZER)
1.0
1.5
2.0
3
4
5
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 of instruction will cause harm or damage, the seriousness is classified
by the following indications.
WARNING
:
This symbol shows the possibility of causing death or serious injury.
CAUTION
:
This symbol indicates the possibility of injury or damage to
properties only.
The items to be followed are classified by the following symbols.
Never Do This
Always Do This
WARNING
Plug in the power plug
properly.
Otherwise, it will cause electric
shock or fire due to heat
generation or electrical shock.
Do not modify power cord
length or share the outlet
with other appliances.
It will cause electrical shock or
fire due to heat generation.
Do not operate or stop the
unit by inserting or pulling
out the power plug.
It will cause electrical shock or
fire due to heat generation.
Do not operate with wet
hands or in damp
environment.
It may cause electrical shock.
-3-
Do not damage or use an
unspecified power cord.
It will cause electrical shock or fire.
If the supply cord is damaged, it
must be replaced by a special cord
or assembly available from the
manufacturer or its service agent.
Do not direct airflow at room
occupants only.
This could damage your health.
CAUTION WHILE OPERATING AC
n Operation
Do not place heavy object
on the power cord and take
care so that the cord should
not be pressed.
Do not share the outlet with
other appliances.
• There is danger of fire or electr ic
shock.
• It will cause electr ic shock or fire
due to heat generation.
Do not place the power cord
near a heater.
• It may cause fire and electr ic
shock.
Do not allow water to run
into electric parts.
• It will cause failure of machine or
electric shock.
Unplug the unit if strange
sounds, odors, or smoke
come from it.
Do not open the suction
inlet grill of the product
during operation.
• Otherwise it may cause fire and
electric shock accident.
• Otherwise, it may electrical
shock and failure.
Ventilate the room well when
using this appliance
together with a stove, etc.
Turn off the power and
breaker firstly when
cleansing the unit.
• An oxygen shortage may occur. • Since the fan rotates at high
speed during operation, it may
cause injury.
-4-
Take the power plug out if
necessary, holding the head
of the plug and do not touc h
it with wet hands.
• Otherwise, it may cause a fire
or electrical 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.
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.
Turn off the main power
switch when not using it f or
a long time.
• Prevent accidental startup and
the possibility of injury.
Do not operate or stop the
unit by inserting or pulling
out the power plug.
• It will cause electr ic shock or fire
due to heat generation.
Hold the plug by the head
when taking it out.
• It may cause electric shock and
damage.
Do not damage or use an
unspecified power cord.
• It will cause electr ic shock or fire.
When gas leaks, open the
window for ventilation
before operating the unit.
• Otherwise, it may cause
explosion, and a fire.
Do not operate with wet
hands or in damp
environment.
• It will cause electr ic shock.
Never touch the metal parts
of the unit when removing
the filter.
• They are sharp and may cause
injury.
CAUTION
n Installation
Install the product so that the noise or hot
wind from the outdoor unit may not cause
any damage to the neighbors.
• Otherwise, it may cause dispute with the
neighbors.
Keep level parallel in installing the pr oduct.
• Otherwise, it may cause vibration or water
leakage.
-5-
n Operation
Do not put a pet or house
plant where it will be
exposed to direct air flow.
• It may cause injury.
Do not step on the
indoor/outdoor unit and do
not put anything on it.
• It may cause an injur y through
dropping of the unit or f alling
down.
Be cautious not to touch the
sharp edges when
installing.
• It may cause injury.
Do not block the inlet or
outlet of air flow.
Use a soft cloth to clean. Do
not use wax, thinner, or a
strong detergent.
• It may cause product failure.
• The appearance of the air
conditioner may deteriorate,
change color, or develop surface
flaws.
Always insert the filter
securely.
Clean it every two weeks.
• Operation without filters will
cause failure.
Avoid excessive cooling and
perform ventilation
sometimes.
• Otherwise, it may do harm to
your health.
-6-
Do not drink water drained
from air conditioner.
• It contains containments and will
make you sick.
Do not insert the hands or
bars through the air inlet or
outlet during operation.
• Otherwise, it may cause
personal injury.
Before Operation
Preparing for Operation
1.
2.
3.
4.
5.
6.
Contact an installation specialist for installation.
Plug in the power plug properly.
Use a dedicated circuit.
Do not use an extension cord.
Do not start/stop operation by plugging/unplugging the power cord.
If the cord/plug is damaged, replace it with only an authorized replacement part.
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 f or non-specified special pur poses (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 shar p metal edges.
2. Do not use water to clean inside the air conditioner . Exposure to water can
destroy the insulation, leading to possib le 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.
Electrical Safety
1. This appliance must be properly grounded.
To minimize the risk of electric shock, you must always plug into a grounded
outlet.
2. Do not cut or remove the grounding.
3. 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.
4. If you have any doubt whether the air conditioner is properly grounded, have
the wall receptacale and circuit checked by a qualified electrician.
-7-
About the Controls on the air conditioner
The controls will look like the following.
Controls
OPERATION
TEMPERATURE
High Cool (
), Med Cool (
) and
) provide cooling with different fan
Low Cool (
speeds. Med Fan (
) or Low Fan (
) provides
air circulation and filtering without cooling. Off ( O )
turns the air conditioner off.
NOTE: If you move the switch from a cool setting to
off or to a fan setting, wait at least 3
minutes before switching back to a cool
setting.
OPERATION
AUTO SWING
Off
Off
On Med
High
Fan
Cool
Low
Med
Fan
Cool
Low
Wait for 3 minutes before restart
Coolest
Cool
Cool
Cooling Descriptions
Operation
Thermostat
Auto Swing
5
4
6
Off
For Normal Cooling- Select High Cool or Med Cool
Off
On
with the OPERATION knob at the midpoint of
High
Cool
Med
Fan
THERMOSTAT/TEMPERATURE
knob.
For Maximum Cooling- Select High
Cool with the
7
3
8
2
1
Cool
OPERATION knob at the highest number available on
Low
Fan
9
Coolest
Wait for 3 minutes before restart
your
THERMOSTAT/TEMPERARURE
knob.
For Quieter
& Nighttime Cooling- Select
Low Cool
Med
Cool
Low
Cool
with the OPERATION knob at the midpoint of
THERMOSTAT/TEMPERATURE knob.
OPERATION
THERMOSTAT (TEMPERATURE)
The THERMOSTAT/TEMPERATURE is used to maintain the room
temperature. The compressor will cycle on and off to keep the room
at the same level of comfort. When you turn the knob to a higher
number (the right side) and the indoor air will become cooler. The
temperature is selected by turning the THERMOSTAT/
TEMPERATURE knob to the desired position.
The 5 or 6 position (the middle position of arc) is a normal setting for
HEATER LAMP
At the heating operation, the lamp is lighted. When the frost settles on
the heat exchanger of the outside, defrosting is made automatically
AUTO SWING
HIGH (
) Cool, LOW (
) Cool provide cooling with
different fan speeds. HIGH (
)heat, LOW(
) heat
provide heating with different fan speeds. FAN (
)
provides air circulation and filtering without cooling or
NOTE:
you (move
the the
switch
from the cool(or
heating.If OFF
O ) turns
air conditioner
off. the
heat) setting to off or to a fan setting, wait
at least 3 minutes before switching back to a
cool(or heat) setting.
Cooling Descriptions
For Normal Cooling- Select HIGH Cool with the OPERATION
knob at the midpoint of the THERMOSTAT/TEMPERATURE knob.
For Maximum Cooling- Select HIGH Cool with the OPERATION knob
at the clockwise available on the THERMOSTAT/TEMPERATURE knob.
For Quieter & Nighttime Cooling- Select LOW Cool with the
OPERATION knob at the midpoint of the THERMOSTAT/
TEMPERATURE knob.
Heating Descriptions
For Normal Heating- Select HIGH heat with the OPERATION
knob at the midpoint of the THERMOSTAT/TEMPERATURE knob.
For Maximum Heating- Select HIGH heat with the
OPERATION knob at the counterclockwise available on the
THERMOSTAT/TEMPERATURE knob.
For Quieter Heating- Select LOW heat with the OPERATION
knob at the midpoint of the THERMOSTAT/TEMPERATURE knob.
Auto swing switch controls the horizontal air direction by air swing system (not on all models).
ON (
) : Auto swing is operated.
OFF (
) : Auto swing is not operated.
-8-
REMOTE CONTROLLER
POWER
1
Air
Purifier
Power
1
5
1
5
V
V
Fan Speed
5
9
Sleep
Mode
Timer
Auto
Swing
3
2
9
6
3
PLASMA
3
2
TIMER
Mode
Auto
Swig
n
6
2(b)
6
STANDARD
MODE
3
2
ENERGY SAVER AUTO SWING
2(b)
OPTIMA
FAN SPEED
4
4
2
Sle
e p
Timer
5
FAN SPEED
4
4
TEMP
5
4
Fan Speed
1
UP
5
V
V
DOWN
Power
8
POWER
1
1
6
4
3
2
MODE
2
2(b)
6
AUTO SWING
6
SIMPLE (TYPE-A)
SIMPLE (TYPE-B)
SIMPLE (TYPE-C)
Your Panel may look like any of below mentioned panels.
Fan
Cool
On
Dry
Energy Saver
V
Fan Speed
4
Temp
5
(b)
22
7
1
2
4
(c)
88 88
HEAT
DRY FAN
ENERGY
SAVER
CLEAN
FILTER
AIR
FILTER
DF
INDOOR
MODE
FAN
AUTO SWING
TIMER
6
3
DESIRED
HEAT
DRY FAN
ENERGY
SAVER
2
4
7
TEMP
88 88
MODE
FAN
Air
Purifier
TIMER
8
3
(d)
CLEAN
FILTER
AIR
FILTER
DF
INDOOR
DESIRED
Fan
V
POWER
Temp
Auto Swing Power
6
2
(e)
Mode
Fan
Defrost
5
1
Cool
22
Timer
On
7
(f)
HEAT
FAN
1
V
V
5
1
(g)
TEMP
5
COOL
Temp
5
Mode
Auto Swing Power
ON
HEAT
FAN
Timer
DEFROST
88
3
4
5
TEMP
DEFROST
FAN
SPEED
AUTO
SWING
ON/OFF
ON/OFF
4
6
1
1
(e) E N E R GY S AV E R
6
2
3
Controls
2
1
Power
Heat Energy Saver
Fan Speed
1
7
7
88
COOL
ENERGY SAVER
4
5
7
3
22
On
7
TEMP
POWER
Cool
Precaution: The Remote Control unit will not function properly if strong light strikes the sensor window of the air
conditioner or if there are obstacles between the Remote Control unit and the air conditioner.
POWER BUTTON
Operation starts, when this button is pressed and stops when you press the button again.
OPERATION MODE SELECTION BUTTON
Select (a)Cool, (b)Energy Saver, (c)Fan, (d)Dehumidification (dry) & (e) Heat Mode (available in heat pump
model) with this button. Energy saver mode-fan stops when compressor stops cooling. Approximately after
3 minutes fan will turn on to determine it cooling is needed. In dry mode, unit will run at low fan speed only
with
compressor
ON/OFF
TIMER 'ON'.
Set the time of on/off operation. The timer can be set by the one hour for a maximum of 12 hours. In the first 30 minute
set temperature increases by 1°C and in the next 30 minutes temperature increases by another 1°C, this temperature
then remains till the timer function is deactivated.
FAN SPEED SELECTOR
Select the fan speed in Three steps Low (F1) / Med. (F2) / High (F3)
ROOM TEMPERATURE SETTING BUTTON
Control the room temperature within a range of 16°C to 30°C.
6 AUTO SWING
The vertical louver swings horizontally by the automatic system and stops when you press the button again.
7 SIGNAL RECEIVER
8 FOR PLASMA MODEL- AIR PURIFIER
Used to Start or Stop the Plasma Purification function `Clean filter' Indication will be `on' on panel when filter
cleaning is required.
9 SLEEP BUTTON
Sleep function can be set by one hour for a maximum of 7 hours. In the first 30 minutes set temperature
increases by 1°C and in the next 30 minutes temperature increases by another 1°C, this temperature then
remains till the timer function is deactivated. This is how the sleep function behaves. The fan speed will
change
to lowmodes
speed may
(F1). vary in select models.
Operation
Fan speed in two steps Low (F1) / High (F2) in select models.
AUTO RESTART
In failure of electric power the unit runs as previous setting operation when power returns.
DEFROST CYCLE [As per central panel in fig. (b), (c),(e) & (f)]
This cycle begins after 30 min of forced heating operation and if the outside pipe temp is 6°C or below. In this cycle,
the fan is off & the machine is run in cooling cycle so as to melt off the ice formed at outside coil.
After defrost cycle, for around 15 sec. AC will blow partially cold air, after 15 sec it will resume blowing hot air.
(For Selected Models) : Energy saver works only in cool mode. In heat mode, only double beep will be heard
no light will glow in display panel.
-9-
Temp
Timer
Temp
Mode
V
3
V
(a)
2
5
How to Insert the Batteries
1 Remove the cover from the back of the remote
controller.
Slide the cover according to the arrow direction.
2 Insert the two batteries.
Be sure that the (+) and (-) directions are correct.
Be sure that both batteries are new.
3 Re-attach the cover.
Slide it back into the position.
Do not use rechargeable
batteries, such batteries differ
from standard dry cells in shape,
dimensions, and performance.
Remove the batteries from the
remote controller if the air
conditioner is not going to be
used for an extended length of
time.
Additional controls and important information.
Vent Control
The vent control is located above the
control knobs.
When set at CLOSE, only the air inside
the room will be circulated and
CLOSE
VENT
OPEN
conditioned. When set at OPEN, some
To open the vent, pull the lever toward you.
inside air is exhausted outside.
To close it, push it in.
Air Direction
The direction of air can be controlled
horizontally or vertically by using the
horizontal louver or vertical louver.
Horizontal Air-Direction
The horizontal air direction is adjusted
Vertical Air-Direction
Fingertip pressure on the bank of horizontal
by setting the AUTO SWING switch to
louvers adjusts the air direction up or down
the ON position.
HEAT
DRY FAN
ENERGY
SAVER
MODE
G
AUTO SWIN
88 88
DF
INDOOR
CLEAN
FILTER
A IR
FILTER
DESIRED
FAN
TEMP
POWER
TIMER
-10-
Care and Maintenance
Grille and Case
To clean, use water and a mild detergent. Do not
use bleach or abrasives.
Turn the air conditioner off and remove the plug
from the wall outlet before cleaning.
Air Filter
Ensure the power is off before open the front Grill.
The air filter behind the front grille should be checked and cleaned
at least once every 2 weeks or more often if necessary.
The grille is designed to clean the filter downward.
(Fig.1)
(a)
(b)
To remove filter :
(Fig.2)
As per Fig. 1
1 Open the inlet grill upward by pulling out the bottom of the inlet grill.
2 Using the tab, pull up slightly on the filter to release it and pull it down.
As per Fig. 2 (a) & (b)
1 Remove inlet grill by moving the slider (provided on the top) in the
direction of arrows.
2 Detach the inlet grill. Take out the filter.
(Fig. 3)
As per Fig. 3
1 Open the inlet grill upward by pulling out the bottom of the inlet grill.
2 Take out the filter.
3 Clean the filter with warm, soapy water below 40°C (104°/F).
4 Rinse and gently shake the water from the filter and let it dry
before replacing it.
NOTE : 3 & 4 is same for Fig.1 & Fig.2
CAUTION :DO NOT operate the air conditioner without a filter because dirt and lint will clog it and reduce performance.
Drainage
1 In humid weather, excess water may cause the BASE PAN to overflow.
To drain the water, remove the DRAIN CAP.
2 To remove the condensed water, you can install the drain pan as below.
1. Take the drain pan which is located in the air discharge.
2. Install the drain pan to the right corner of the cabinet with 4 screws.
3. Connect the drain hose 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).
BASE
PAN
BASE
PAN
DRAIN
CAP
DRAIN CAP
CABINET
DRAIN
PAN
SCREW
DRAIN HOSE
3 Remove DRAIN CAP in heating mode.
(Optional)
-11-
Features
Learning parts name prior to installation will help you understanding the installation procedure.
Features
1
2 3
4
5
6
15
1. CABINET
6. VERTICAL AIR DEFLECTOR
2. FRONT GRILLE
(HORIZONTAL LOUVER)
7. EVAPORATOR
8. HORIZONTAL AIR
3. AIR FILTER
7
8
9
10
11 12 13 14
9. CONTROL BOARD
10. POWER CORD
11. COMPRESSOR
12. BASE PAN
4. AIR INTAKE(INLET GRILLE)
DEFLECTOR
5. AIR DISCHARGE
(VERTICAL LOUVER)
13. BRACE
14. CONDENSER
15. PLASMA FILTER ASSY.
Installation Instructions
Select the Best Location
B
C
D
To prevent vibration and noise, make sure the unit is
installed securely and firmly.
Install the unit where the sunlight does not shine directly
on the unit.
There should be no obstacle, such as a
fence or wall, within 50cm 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.
AWNING
FENCE
HEAT
RADIATION
COOLED
AIR
70-150cm
A
10~15mm
Over 50cm
1/4 Bubble
Install the unit a little obliquely outward not to leak the
condensed water into the room (about 10 ~ 15mm or 1/4
bubble with level).
CAUTION: All side louvers of the cabinet must remain
exposed to the outside of the structure.
Level
Remove the Air Conditioner From the Case
A
B
C
Remove the 2 shipping screws from the
back of the case.
Remove the 2 screws on each side of the
case. Keep these for later use.
Shipping screws
-12-
Slide the air conditioner from the case by
gripping the base pan handle and pulling
forward while bracing the case.
Installation Instructions
Install the Air Conditioner in the Case
A
E
Slide the air conditioner into the case.
Reinstall the screws removed earlier on
each side of the case.
Screw
Attach the front grille to the case by
inserting the tabs on the grille into the slots
on the front of the case. Push the grille in
until it snaps into place.
Deo-filter*
Power Cord
Screw
CAUTION: The power cord must be connected to
an independent circuit.
The green wire must be grounded.
B
Stuff the foam between the unit and the
wall to prevent air and insects from getting
into the room.
When you detach the
front grille from the
case, push the grille
to your rightside and
pull it toward you.
The Foam
C
D
Fix Holder lock with base pan & cabinet
with screw to prevent machine from
sliding out of cabinet from back grill side
(Anti theft locking).
F
Before installing the front grille, pull out the
vent control lever located above the unit
control knobs, as shown.
Lift the Inlet grill and secure the front grill
with a screw Lower the inlet grill into place.
The maximum lift angle should not be more
than 75°.
Max opening angle 75 degree
* Deo-filter available in select Models.
Remove Deodorizing filter carefully from the grill, shake
clean it by hand & keep it in sunlight for one hour to
activate it again; once it is choked.
-13-
Before you call for service...
Troubleshooting Tips
Save time and money! Review the chart below first and
you may not need to call for service.
Normal Operation
You may hear a pinging noise caused by water being picked up and thrown against the condenser
on rainy days or when the humidity is high. This design feature helps remove moisture and improve
efficiency.
You may hear the thermostat click when the compressor cycles on and off.
Water will collect in the base pan during high numidity or on rainy days. The water may overflow
and drip from the outdoor side of the unit.
The fan may run even when the compressor does not.
Abnormal Operation
Problem
Possible Causes
The air conditioner is
unplugged.
Air conditioner
does not start
The fuse is blown/circuit
breaker is tripped.
Power failure.
Airflow is restricted.
THERMOSTAT control set
too warm.
Air conditioner
does not cool as it
should
The air filter is dirty.
The room may have been
hot.
Cold air is escaping.
What To Do
Make sure the air conditioner plug is pushed
completely into the outlet.
Check the house fuse/circuit breaker box and
replace the fuse or reset the breaker.
If power failure occurs, turn the OPERATION control
to OFF( O ) . When power is restored, wait 3 minutes
to restart the air conditioner to prevent tripping of the
compressor overload.
Make sure there are no curtains, blinds, or furniture
blocking the front of the air conditioner.
Turn the THERMOSTAT knob clockwise to a cooler
setting.
Clean the filter at least every 2 weeks.
See the operating instructions section.
When the air conditioner is first turned on you need
to allow time for the room to cool down.
Check for open furnace floor registers and cold air
returns.
Set the air conditioner's vent to the closed position.
Cooling coils have iced up.
See Air Conditioner Freezing Up below.
Air conditioner
freezing up
Ice blocks the air flow and
stops the air conditioner
from cooling the room.
Set the OPERATION control at fan (
) or
HIGH cool (
) with the THERMOSTAT at the warmer
position or the temperature at more than 23°C.
Abnormal noise
in heating mode
Ice formation in condenser
coil.
Continuous run in heat
mode under 0°C.
Ensure to remove drain cap before operation.
-14-
10 Easy Steps to find out your AC tonnage
Dear Customer,
Please follow Below mentioned 10 easy steps to find out the AC tonnage required for your room.
Step
1
Parameter
Room Volume (Cubic feet)
upto 1000
1001 ~ 2000
2001 ~ 3000
3001 ~ 4000
Score
Step
2
3
4
5
6
Window Area exposed to sun
(in sq. ft.) - (West facing)
2
upto 10
11 ~ 20
21 ~ 30
1
2
3
7
0
1
2
3
8
Window Area exposed to sun
(in sq. ft.) - (other directions)
3
4
5
upto 10
11 ~ 20
21 ~ 35
36 ~ 50
Wall Area exposed to sun
(in sq. ft.) - (West facing)
100
150
200
300
Wall Area exposed to sun
(in sq. ft.) - (other directions)
100
150
300
500
Score
6~10
11~17
18~25
1
2
3
4
9
0
1
2
3
10
Parameter
Walls area - not exposed to
sun (in sq. ft.)
100
300
600
1000
No. of persons occupying
room
2
4
6
8
Ceiling area exposed to sun
(in sq. ft.)
200
300
400
Ceiling area if not exposed to
sun (in sq. ft.)
200
300
400
Total Appliance Load (tube
light-40w / Computer75w, CTV - 75 etc.)
100W
250W
500W
Score
0
1
2
3
1
2
3
4
1
2
3
0
1
2
2
3
4
AC recommended
1.0Tr
1.5Tr
2.0Tr
Score Table
Example : For Room size 15 feet(L) x 12 feet(B) x 10 feet(H) with one window 4 feet x 3 feet exposed to
sun (west) & one wall exposed to sun (east).The room is on First floor with ceiling not exposed to sun.
The no. of persons occupying the room is 4 nos. The appliance load is – 2 tube lights, 1 Computer & 1 TV.
Calculate the AC tonnage required.
As per steps given above : room volume : 15*12*10 = 1800 cu. Ft. , window area = 4*3=12 sq.ft.,
Wall area (east) = 15*10=150
Step1 = 3
Step2 = 2
Step3 = 0
Step4 = 0
Step5 = 1
Step6 = 2
Step7 = 2
Step8 = 0
Step9 = 1
Step10= 3
Total score = 14
-15-
1.5T Window AC
(From Score table)
For any further information, please contact LGEIL Branches
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Hanamakonda-506001 (Warangal)
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3/568, Thripuri Building, Wayanadu Road, First Floor,Near K.S.F.E,
East Nadakkavu, Calicut-673011
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LG Electronics
LG Electronics India Pvt. Ltd.
Regd. Office: A-27, Mohan Cooperative Industrial Estate, Mathura Road, New Delhi-110044.
The picture shown on Front page is representative model. LG Electronics reserves its right to change,
modify or alter design without any prior notice.
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