LG R1804H Owner’s Manual

website http://www.lgservice.com
e-mail http:#www.lgesx:rvice.com/techsup.html

OM

Please read the operating instructions and safety precautions carefully
and thoroughly before installing and operating your room air conditioner,

MANUEL

CL! T

Veuillez lire a_entivement et en entier ce guide d'utilisation et les mesures de
securit6 ci-incluses avant de proceder a I'instaflation et au fonctionnement de

votre climatiseur.

E

AI

'S U

'UTILI

E E FE

ITIONE

L

N

A

ET

N ICl

P PIET

0

Por favor lea las instrucciones de operaci6n y las precauciones de seguridad

cuidadosa y totalmente antes de instalar y operar su acondicionador de aire
de ventana.

MODEL, MODELE, MODELO: R1804H

FOR YOUR RECORDS

Staple your receipt to this page in case you need it later.
Write down the model and serial num_rs here:

Model #

You can find them on a label on the side of each unit,
_aler's Name

DatePurchased

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 cha_ of
Troubleshooting Tips first, you may not need to cail for

service at all

• Contact the authorized Service technician for repair or
maintenance of this unit. CaLl 1-800-243-0000 to locate

the nearest ASC.

• The air conditioner is not intended for use by young

children or infirm persons without supewision.

• "Youngchildren should be supervised to ensure that they

do not play with the air conditioner.

fety Pre utions

To prevent injury to the user or other p_ple and proper%,damage, the following instructions must be
followed.

m Incorrect operation due to ignoring of instruction wil_cause harm or damage, The seriousness is classified

by the fo]bwing indications

[] Because of the weight of the product, it is recommended that you have a helper to assist in the installation.
[] Use Caution! Shard Edges! See Warning, page 4.

f Z_ WARNING This symbol indicates the possibility of death or serious injury. --)

L,_ CAUTION This symb°' indicates the p°ssibi'ity °f injury °r damaget°propertieson%,. j]

m Meanings of symbols used in this manual are as shown below.

Be sure not:to do this. -)

__ Be sure to foilow the instruction. ,,,,_

f

• Otherwise, it will cause electric
shock or fire due to heat

generation.

• It will cause electric shock or fire . Itwillcause electdc shock.
due to heat generation.

_ WARNING 1

L J

• It will cause electric shock or fire
due to heat generation.

• It willcauseelectricshockor fire.

• It:thepowercord is damaged,it must
replacedbythemanufactureror

an authorizedservicecenterora
similarlyqualifiedpersoninorderto

avoida hazard,

• This could damage your health

problems.

®

c ,o.1

•It may cause an iniury. • Water may enter the unit

and degrade the
insulation, It may cause

an ele_dc shock.

• This could injure the pets or
plants.

• Do not use this air conditioner to
preserve precision devices, food,

pets, plants, and art objects
It may cause deterioration of

quality, etc

• An oxygen shortage may
occur.

* It may cause an electric shock

* Since the fan rotates

high speed during
operation, it may cause
an injury,

•It may cause a fire or deformation • it may cause imperfect
of the cabinet, combustion.

• Usecautionwhen handEingthe
use. Grip it firmlyand do not allow

itto slip whileholding it.

• Useheavyglovestohandlehe caseif
necessary

• DONOT
allowthe

casetosiide

yourskin!

About the ntro, ls on the Air Conditioner

The controls will look like one,of the following.

WARNING

To reduce the risk of fire, electric shock, or injury to persons, read the IMPORTANT
SAFETY INSTRUCTIONS before operating this appliance.

CAUTION

When the air conditioner has been performing its cooling operation and is turned off
or set to the fan position, wait at least 3 minutes before rescuing to the cooling
operation again

FUNCTION

Thermostat

War_r (_oler

• THERMOSTAT
Turn the thermostat control to the desired

setting. The centrol position is a normal setting
for average conditions. You can change this
setting, if necessary, in accordance with your
temperature preference.

The thermostat automatically controls cooling or

heating, but the fan runs continuously whenever

the air conditioner ksin operation. If the room is
too warm, turn the thermostat control clo_wise.

If the room is too cool, turn the themostat @ntroI

anticlockwise.

• Auto Swing

ON : Starts the operation of air swing.
OFF : Stops the operation of air swing.

Please turn off Auto Swing when Operation Switch

iS Off. Auto Swing

Off On

'WaitT h_ee #ir_te_.

• OPERATION
OFF ( 0

FAN ( O

LOW COOL (

HIGH COOL ( _{}_

LOW HEAT (_)

HIGH HEAT ( _ )

H_ghCeol

:Turns the air conditioner off.

Permits the low fan speed
operation without cooling
(heating).

Permits cooling with the low
fan speed operation.

Permits cooling with the

high fan speed operation.

Permits heating with the low
fan speed operation.

Permits heating with the

high fan speed operation

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, win

disappear quickly.

Additional controls and important information.

The ventilation lever must be in the CLOSE position in order to maintain the best cooling _nditions.
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.

i

I
I

i

NOTE:

Before using the ventilation feature,
position the lever, as shown. First, pull down
part _ to horizontal line with part _.

Air Direction

Pa_@

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

To control horizontal direction of air flow, set to the ON
position the aiFswing switch and the air flow will be swept

horizontally by the automatic air-swing system.

If you want to stop the air flow from moving, switch off the

air swing switch at the desired position of the vane.

. VERTICAL AIR- TION CONTROL

The vertical air direction is adjusted by moving the
horizontal louver.

How to Attach Drain Pan

The air conditioner employs a proper drain method whereby the con@nsed water (moisture removed from
the air} is drained to the outside.

Invery humid weather, (and for reverse cycle models inthe reverse mode) excessive con_nsate water
removed from the air may cause some waterto collect. To remove this excess water you can instaii the
drain p_ as detail_ below.

1.Take the drain pan which is located inthe air discharge. CABINET

2. Remove the hole rubber fromthe base-pan (for some models). .............

3. Installthe drain pan to the right corner d the cabinet with 4 (or 2) "*

screws.

4. Connect the drain hose of 3/5"insi_ diameter to the outlet located PAN

at the _ttom of the drain p_.You _n purchase the drain hose or
tubing I_ally to satisfy your particular needs. (Drain hose is not
supplied). DRAIN HOSE

How to Connect a Drain Hose,

ho, at hetheo, coo it,ooo ooi ii I ':"'

1. Remove the hole rubber from the base-pan (for _me models)

Select a drain method according to the foilowing _ DRAINPiPE

2. Connect a drain hose of 9/,, inside diameter to the drain pipe _ _t, DRAf[.4HOSE
as shown in Fig. 1, ,,

3. Or connect a pipe elbow of %,' inside diameter to the drain _ Fig. 2
pipe' then c°nneot a drain h°se °' 9/'_' inside diameter t° the (1_1

pipe elbow as shown in Fig. 2. DRAINELBOW

_re and Maintenan_ F ORA,NHOSE

TURN THE AIR CONDITIONER OFF AND REMOVE THE PLUG FROM THE POWER OUTLET

Air Filter Cleaning

The air filter should be checked at least twice a month to see if cleaning is necessary.
Trapped particles in the filter will build up and block the airflow. This reduces the cooling

capacity and also causes an accumulation of frost on the cooling coils.

1. Open the inlet grille upward by pulling out the bosom of the inlet gdlle.(a)
in another case, you can open the inlet grille downward by pulling out the top of the inlet

grille.(b)

2. Remove the air filter from the front gdlle assembly by pulling the air filter up or down
slightly.

3. Wash the filter using lukewarm water below 40_ (104_).(c)

4. Gently shake the excess water from the filter completely. Replace the filter.

(_

NOTE: Mark A of inlet grille means opening direction.

How to Attach Front Grille to Cabinet

1. Pull down front grille from the cabinet
top

2. Push front grille's tips toward the cabinet
in order to insert front grille's tabs into

the cabinet

3_ Open the inlet grille.
4 Tighten the screw through the front grille

into the plate of the evaporator.

5 Close inlet grille.

(b) (c)

Features and InMallation

Learning parts name prior to installation will help you understand the installation procedure.

1. CABINET

2. HORIZONTAL AIR DEFLECTOR
(VERTICAL LOUVER)

3. VERTICAL A_R DEFLECTOR
(HORIZONTAL LOUVER)

4, AIR DISCHARGE
5, FRONT GRILLE

6, INLET GRILLE (AIR INTAKE)

7. AIR FILTER

8. CONTROL BOARD

9. POWER CORD

10. EVAPORATOR

11. CONDENSER

12. COMPRESSOR
13, BASE PAN
14, BRACE

15. COVER CONTROL
16, ELECTRIC HEATER

How to Install the Unit

INSIDE OUTSIDE FENCE

AWNING

FOAM ...........

COOLEU_ HEAT

% About 1/2"

1. To avoid vibration and noise, make sure the unit is installed securely and firmly.

2. Instal[ the unit where the sunlight does not shine dir_tly on the unit.
If the unit receives dir_t: sunlight, build an awning to shade the cabinet.

3. There should be no obstacle, like a fence, within 20" which might restrict heat radiation from the

_ndenser.

4. To prevent reducing performance, insta[I the unit so that louvers of the cabinet are not blocked.

5. Install the unit a little obliquely outward not to avoid leaking the _ndensed water into the room
(about 1/2" or 1/4 bubble with level).

6. Install the unit with its bottom portion 30~60'' above the floor level

7. Stuff the foam between the top of the unit and the wa!l to prevent air and insects from getting into

the room.

8. The power _rd must be connected to an independent circuit. The green wire must be grounded.

9. Connect the drain tube to the base pan hole in the rear side if you need to drain (_nsult a dealer.}
Plastic hose or equivalent may be conn_t_ to the drain tube.

RADIATION

Over 20"

How to Use the Reversible Inlet Grille

The grille is designed to clean the filter both upward and downward.

@ ",

(a)

A. Before attaching

1. Open the inlet grille slightly (a).

2. Turn inside out the front grille (a).

3. Disassemble the inlet grille from the front grille with separating the hinged pa_ by inserting a
straight type screw-driver tip (b).

4. Then, rotate the inlet grille 180 degrees and insert the hooks into bottom holes of the front grille.

5. Insert the filter and attach the front grille to the cabinet.(Refer to page 7)

the front grille to the cabinet, if you want _ puff out the

(b) (c)

B. If you want to puff out the filter downward;

The grille is already designed that way,

WindowRequirements

NOTE: AI supporting parts should be secur_ to firm wood, masonry, or metal.

WINDOW REQUIREMENTS

1. This unit is designed for installation in
standard double hung windows with actual

opening widths from 26" to 41".

The top and botom window sashes must

open sufficiently to a/owa cFear vertical
opening of 18" from the bottom of the upper

sash to the window stool.

2. The stool offset (height between the stool

and sill) must be less than 1 W'.

("1- : than 1 1/4"

I

26" to

8" min

I (Withoutframecurtain}

Stool

InstallationKits Contents

/

TypeA(14) Ty_ B (7) TypeC (5) Type D (2) CarriageBol (2) Lock Nut (4)

Suggested ToolRequirements

SCREWDRIVER(+,-), RULER, KNIFE, HAMMER, PENCIL, LEVEL

PREPARATION OF CHASSlS

1. Remove the screws which fasten the cabinet at
both sides and at the back.

2, Slide the unit out from the cabinet by gripping the

base pan handle and pulling forward while
bracing the cabinet,

3. Cut the window sash sea] 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 Foam-PE with 3 holes
and attach it to the bottom of the Top retainer bar,

5, Attach the Top retainer bar on the top of the

cabinet with 3 screws (Type A),

Shippingscrews

6. Insert the Frame guides into the bottom of the
cabinet.

7. Inse_ the Frame Curtain into the Top retainer bar
and Frame guides.

8, Fasten the cu_ains to the unit with 10 screws

(Type A) at both sides,

Foam-PE

Top retainer_r

Screw

(TypeA)

Top retainerbar

Screw(TypeA)

"Frameguide

Cabinet Installadon

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.

2. A_ach the sill bracket to the window s,ill
using the screws (Type B),

Carefully place the @binet on the window

stool and align the _nter mark on the

bottom front with the center line marked

window stool,

3. Using the Moscrew and the lock nut, attach

the support bracket to the cabinet tra_ hole.

Use the first track hole aRer the silt bracket

on the outer edge of the window sill. Tiglhten
the carriage bolt and the lock nut Be sure

the cabinet slants ou_ard,

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.

Sill
Bracket

Carriage
Bo_t

(M-Screw)

Carnage

and Jocknut

retainer
bar

Frontangle

Window sash retainerbar

Machinescrew(Ty_D)
andlocknut

O_er edge

window

sill

"Sillbracket

Windowstool

nut

B)

4, Pull the bottom window sash down behind

the Top retainer bar until they meet,

NOTE: 1. Do not pull the win_w 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 _binet should be installed with
a very slight tilt downward toward the

outside.

Framecu_ain

Foam-PE

track

FrontAngle

Screw(Ty_ B)

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 saslh
by using screws (Type C.) (See Fig. 10)

7. Slide the unit into the cabinet.(See Fig. 11)

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. 12)

Screw

c}

Fig. i0

Cord

Screw(Ty_ A)

Fig, 1i

9. Attach the Window locking bracket with a
screw (Type C.) (See Fig. 13)

10. Attach the front grille to the _binet 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.14)

11. Lift the inlet grille and secure it with a screw
(Type A) through the, front grille.(See Fig. 14)

12. Window installation of room air conditioner is

now completed. See ELECTRICAL DATA for
attaching power cord to electrical outlet.

Windowlocking
bracket

fJ

Fig. 13

Fig. 14

,Fig. 15

Line Cord Plug Power Supply

NOTE : Aluminum house wiring may pose special problems. Consult a qualified electrician.

Use Wall Receptacle

Use 20 AMP, time
delay fuse or circuit

breaker.

Standard 250V, 3-wire grounding
receptacle rated 20A, 250V AC

[] ELECTRICAL SAFETY

IMPORTANT GRO

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.

FUSE - Use a time-delay fuse or circuit breaker.
Refer to serial plate for proper power supply
requirements.

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 possibie 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.

NOTE: DO NOT USE AN EXTENSION CORD

ON 230, 208, AND 230./208 VOLT UNITS.

fore you for

Troubleshooting Tips

Save I time and money! Review the chart below first and

you may not ne_ to cat! for service.

• 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 coilect in the base pan during high humidity 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

Air conditioner

doesnot start

Air conditioner

doesnot cool as it

should

• Make sure the air conditioner plug is pushed

completely into the outlet.
Check the house fuseTcircuit breaker box and

replace the fuse or reset the breaker.

If power failure o_urs, turn the mode control to OFF.
When power is restored, wait 3 minutes to restart the
air conditioner to prevent tripping of the _mpressor

overload_

• Make sure there are no curtains, blinds, or furniture
blocking the front of the air _nditioner.

• Turn the knob to a higher number, The highest
se_ing provides maximum cooling,

• Clean the filter at ]east every 2 weeks.
See the operating instructions s_tion.

• 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.

Air conditioner

• See Air Conditioner Freezing Up below,

• Set the mode control at High Fan or High Co,ol with

thermostat at I or 2,