air conditioner -...

P/NO : 3828A23010N

http://www.lghvac.com

www.lg.com

OWNER’S MANUAL

AIR CONDITIONER Please read this manual carefully before operatingyour set and retain it for future reference.

TYPE : Ceiling Concealed Duct - Low Static

ENG

LISHFR

AN

ÇA

ISESPA

ÑO

L

2 Multi Type Air Conditioner

Multi Type Air Conditioner Owner’s Manual

TABLE OF CONTENTS

FOR YOUR RECORDSWrite 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

� Staple your receipt to this page in the event you needit to prove date of purchase or for warranty issues.

READ THIS MANUALInside you will find many helpful hints on how to useand maintain your air conditioner properly. Just a littlepreventive care on your part can save you a great dealof time and money over the life of your air conditioner.

You'll find many answers to common problems in thechart of troubleshooting tips. If you review our chart of

Troubleshooting Tips first, you may not need to callfor 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 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 byauthorized personnel only using only genuinereplacement parts.

• Installation work must be performed inaccordance with the National Electric Code byqualified and authorized personnel only.

A. Safety Precautions ....................3

B. Necessary functions before using ....6

Trial Operation .............................6

Celsius/Fahrenheit Switching.......7

Setting the Central-ControlAddress........................................8

ESP Function ...............................9

C. Operating Instructions ............10

Simple Wired Remote Controller ....10

Cooling Operation ......................11

Heating Operation......................12

Auto-Operation...........................13

Dry(Dehumidification) Operation ...14

Fan Operation ............................14

Fan Speed Selection..................15

Indoor Temperature Display.......16

Child Lock ..................................17

Different Mode Operation...........17

D. Maintenance and Service........18

When the air conditioner is not going to be used for a long time. ..19

Operation Tips............................19

E. Before you call for service......20

Safety Precautions

Owner’s Manual 3

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Safety PrecautionsTo prevent injury to the user or other people and property damage, the following instructions must befollowed.� Incorrect operation due to ignoring instruction will cause harm or damage. The seriousness is classified

by the following indications.

WARNING

CAUTION

This symbol indicates the possibility of death or serious injury.

This symbol indicates the possibility of injury or damage to properties only.

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

Be sure not to do.

Be sure to follow the instruction.

WARNING� Installation

Do not use a defective orunderrated circuit breaker. Usethis appliance on a dedicatedcircuit.

• There is risk of fire or electricshock.

For electrical work, contact thedealer, seller, a qualifiedelectrician, or an AuthorizedService Center.

• Do not disassemble or repair theproduct. There is risk of fire orelectric shock.

Always ground the product.


Install the panel and the coverof control box securely.


Always install a dedicatedcircuit and breaker.

• Improper wiring or installationmay cause fire or electric shock

Use the correctly rated breakeror fuse.


Do not modify or extend thepower cable.


Do not install, remove, orre-install the unit by yourself(customer).

• There is risk of fire, electric shock,explosion, or injury.

Be cautious when unpackingand installing the product.

• Sharp edges could cause injury.Be especially careful of the caseedges and the fins on thecondenser and evaporator.

For installation, always contactthe dealer or an AuthorizedService Center.

• There is risk of fire, electric shock,explosion, or injury.

Do not install the product on adefective installation stand.

• It may cause injury, accident, ordamage to the product.

Be sure the installation areadoes not deteriorate with age.

• If the base collapses, the airconditioner could fall with it,causing property damage,product failure, and personalinjury.

Safety Precautions


Do not allow water to run intoelectric parts.

• It may cause There is risk of fire,failure of the product, or electricshock.

Do not store or use flammablegas or combustibles near theproduct.

• There is risk of fire or failure ofproduct.

Do not use the product in atightly closed space for a longtime.

• Oxygen deficiency could occur.

When flammable gas leaks,turn off the gas and open awindow for ventilation beforeturn the product on.

• Do not use the telephone or turnswitches on or off. There is risk of explosion or fire

If strange sounds, or small orsmoke comes from product.Turn the breaker off ordisconnect the power supplycable.

• There is risk of electric shock orfire.

Stop operation and close thewindow in storm or hurricane. If possible, remove the productfrom the window before thehurricane arrives.

• There is risk of property damage,failure of product, or electricshock.

Do not open the inlet grill of theproduct during operation.(Do not touch the electrostaticfilter, if the unit is so equipped.)

• There is risk of physical injury,electric shock, or product failure.

When the product is soaked(flooded or submerged),contact an Authorized ServiceCenter.


Be cautious that water couldnot enter the product.

• There is risk of fire, electric shock,or product damage.

Ventilate the product from time to time whenoperating it together with a stove, etc.

• There is risk of fire or electric shock.

Turn the main power off when cleaning ormaintaining the product.

• There is risk of electric shock.

� Operation

Do not plug or unplug thepower supply plug duringoperation.


Do not touch(operate) theproduct with wet hands.

• There is risk of fire or electricalshock.

Do not place a heater or otherappliances near the powercable.

• There is risk of fire and electricshock.

Do not let the air conditionerrun for a long time when thehumidity is very high and adoor or a window is left open.

• Moisture may condense and wetor damage furniture.

Take care to ensure that powercable could not be pulled out ordamaged during operation.


Do not place anything on thepower cable.


When the product is not be used for a long time,disconnect the power supply plug or turn off thebreaker.

• There is risk of product damage or failure, orunintended operation.

Take care to ensure that nobody could step on orfall onto the outdoor unit.

• This could result in personal injury and productdamage.

Safety Precautions

Owner’s Manual 5

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� InstallationCAUTION

Always check for gas (refrigerant)leakage after installation or repairof product.

• Low refrigerant levels maycause failure of product.

Install the drain hose to ensurethat water is drained awayproperly.

• A bad connection may causewater leakage.

Keep level even when installingthe product.

• To avoid vibration or waterleakage.

� Operation

Do not install the product where the noiseor hot air from the outdoor unit coulddamage the neighborhoods.

• It may cause a problem for yourneighbors.

Use two or more people to lift andtransport the product.

• Avoid personal injury.

Do not install the product whereit will be exposed to sea wind(salt spray) directly.

• It may cause corrosion on the product.Corrosion, particularly on the condenserand evaporator fins, could cause productmalfunction or inefficient operation.

Do not expose the skin directlyto cool air for long periods oftime. (Don't sit in the draft.)

• This could harm to your health.

Do not use the product for specialpurposes, such as preserving foods,works of art, etc. It is a consumer airconditioner, not a precisionrefrigeration system.

• There is risk of damage or lossof property.

Do not block the inlet or outletof air flow.

• It may cause product failure.

Use a soft cloth to clean. Donot use harsh detergents,solvents, etc.

• There is risk of fire, electricshock, or damage to the plasticparts of the product.

Do not touch the metal parts of theproduct when removing the airfilter. They are very sharp!

• There is risk of personal injury.

Do not step on or put anytingon the product. (outdoor units)

• There is risk of personal injuryand failure of product.

Always insert the filter securely.Clean the filter every two weeksor more often if necessary.

• A dirty filter reduces the efficiency ofthe air conditioner and could causeproduct malfunction or damage.

Do not insert hands or other objectsthrough the air inlet or outlet while theproduct is operated.

• There are sharp and moving partsthat could cause personal injury.

Do not drink the water drainedfrom the product.

• It is not sanitary and could causeserious health issues.

If the liquid from the batteries gets onto your skinor clothes, wash it well with clean water. Do notuse the remote if the batteries have leaked.

• The chemicals in batteries could cause burns orother health hazards.

If you eat the liquid from the batteries, brush yourteeth and see doctor. Do not use the remote if thebatteries have leaked.

• The chemicals in batteries could cause burns orother health hazards.

Use a firm stool or ladder whencleaning or maintaining theproduct.

• Be careful and avoid personalinjury.

Replace the all batteries in theremote control with new ones ofthe same type. Do not mix old andnew batteries or different types ofbatteries.

• There is risk of fire or explosion

Do not recharge ordisassemble the batteries. Do not dispose of batteries in afire.

• They may burn or explode.

Necessary functions before using



Out door

Room Temp

Total on

Central Run

Defrost Preheat

PQRCUCS0C

FANSPEEDMODE

TEMP

TEMP

The trial operation is to check the installation status of the product. The temperature will not be controlled duringtrial operation. Instead the product will operate in several modes such as cooling, strong wind, comp-on.

1 If you want to set the trial operation mode, press themode button and the Fan speed button same time forthree seconds.

2 Then the product will begin the trial operation and thedisplay will be like as shown on left side picture.

3 If you want to cancel the trial operation mode, justpress the On/Off button.

4 The trail operation will be shut down automaticallyafter 18 minutes and system will go to the standbymode.

Trial Operation


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FANSPEEDMODE

Out door

Room Temp

Total on

Central Run

Defrost Preheat

Room Temp

Total on

Central Run

Defrost Preheat Out door

Out door

Room Temp

Total on

Central Run

Defrost Preheat

<Setting as Celsius> <Setting as Fahrenheit>

TEMP

TEMP

Room Temp

Total on

Central Run


PQRCUCS0C

1 If you want to change the temperature unit as theCelsius or Fahrenheit, press the Temperature controlbutton( ) and the Fan speed button same time forthree seconds to enter the setting Mode.

2 Press the temperature control button to change theunit. Ex) Setting unit as Fahrenheit.

3 After setting, press the Temperature control button( )and the Fan speed button same time for three secondsto exit the setting Mode. The system will automatically release without inputafter 30 seconds.

Celsius/Fahrenheit Switching



Note : The remote controller displays 'HL' if central controller has locked the remote controller .

Out doorDefrost Preheat

PQRCUCS0C

FANSPEED

MODE

FANSPEED

MODE

Group No.

Indoor Unit No.

TEMP

TEMP

TEMP

TEMP

Central Run

1 If you want to set the address on the display panel,press both temperature control buttons (�/�) sametime for three seconds.

2 Press the temperature-increasing button to change thegroup number. Press the temperature-decreasingbutton to change the indoor unit number. e.g. As shown on the left side panel, it displays 23.

Group No. : 2Indoor Unit No. : 3

3 Set the address by pressing both temperature controlbuttons again(�/�) at the same time for threeseconds.

• If you connect the indoor unit to the central controller, you should set the networkaddress of the indoor unit so that the central controller could recognize it.

• The center-control address is composed of the group number and the indoor-unitnumber.

Setting the Central-Control AddressPlease set the address while using the central controller.

You don't need to set address if you don't use central controller.


Owner’s Manual 9

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Out door

Room Temp

Total on

Central Run

Defrost Preheat

PQRCUCS0C

FANSPEED

MODE

Lo

Med

200 100

Setting the Low wind to 210 Setting the Medium wind to 175

TEMP

TEMP

1 Press the mode button and the temperature increasingbutton(�) same time for three seconds.

2 Set the volume of each fan speed(Low, Medium, Hi)by using the temperature control button. Press the fanspeed button to select the fan speed.The value of E.S.P can be adjusted from 1 to 255.

3 If you press the On/Off button while setting the ESPfunction, it will be canceled. (The picture on the leftside is the example of setting the Hi wind to ESP 10.)

4 Press the mode button and the temperature increasingbutton (�) same time for three seconds. Then the ESPsetting will be activated after the temperature displayflashes three times.

E.S.P function is setting the volume of each fan speed. It is for the convenience of installation. It is recommendedthat you should not use this function while using the remote controller.

EX)

❈ The E.S.P value is set at the proper value at the factory. Soit is highly recommended that you should not change theE.S.P value at your discretion.

ESP Function


Simple Wired Remote Controller

PQRCUCA0

FANSPEED

MODE

Cooling Heating Auto Dry Fan


SloLo

Med

Hi

Po

Room Temp

Total on

Central Run

1

2

34

5

Each function will be shown on the display panel for three second or so when the power is applied at first.

1. Operation Display PanelDisplays the operation conditions.

2. On/Off FunctionOperation starts when this button is pressed, and stops when the button ispressed again.

3. Fan Speed ButtonUsed to set desired fan speed.

4. Temperature Control ButtonUsed to set the temperature when the desired temperature is obtained.

5. Mode Selection Check ButtonUsed to select the operation mode.

• Cooling operation• Heating operation• Auto-operation• Dry (Dehumidification) operation• Fan operation

Operating Instructions


Owner’s Manual 11

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LISHOperating Instructions

PQRCUCA0

FANSPEED

MODE

A click of the button will increase the desired temperature by 1°C(2°F).

A click of the button will decrease the desired temperature by 1°C(2°F).

Cooling

Out door

Hi

1 Cooling operation will begin if you press the On/Offbutton.

❈ Plasma function is always operating for working ifproduct has plasma function.

2 Press the temperature button and set the desiredtemperature lower than the current roomtemperature. 18~30°C(64~86°F)

* If the desired temperature is set higher than the currentroom temperature, the cooling function will not beginand just the blowing operation will continue.

3 If you press the mode button during the operation,the operation mode will be changed in the order ofcooling, heating, dry(dehumidification), fan andauto-operation.If the product is a Cooling-Only model, the operationmode will be changed in the order of cooling,dry(dehumidification), fan and auto-operation.

4 If you press the On/Off button, the cooling operationwill stop.

Cooling Operation



PQRCUCA0

FANSPEED

MODE

A click of the button will increase the desired temperature by 1°C(2°F).

A click of the button will decrease the desired temperature by 1°C(2°F).

Heating

Out door

Hi

1 If you want to set the heating operation, press theOn/Off button. And press the mode button.


2 Set the desired room temperature higher than thecurrent room temperature. 16~30°C(60~86°F)

* If the desired temperature is set lower than the currentroom temperature, the heating function will not begin.

3 If you press the mode button during the operation, theoperation mode will be changed in the order of cooling,heating, dry(dehumidification), fan and auto-operation.

4 If you press On/Off button again, the heating operationwill stop.

What is the three-minute delay function?

It will take time for the product to blow warm air. The delay is to protect the compressor. Theroom will be heated with warm air after three minutes when the compressor begins operation.

� The cooling-only model will not do heating function.

Heating Operation

Owner’s Manual 13

ENG


PQRCUCA0

FANSPEED

MODE

Auto

Out door

Hi

1 Set the operation mode to auto-operation afterpressing the On/Off button.


2 When the room temperature is lower than the desiredtemperature: Heating Operation starts[For Heat Pump Models only]

When the room temperature is higher than the desiredtemperature: Cooling Operation starts

3 If you press the mode button during the operation, theoperation mode will be changed in the order of cooling,heating, dry(dehumidification), fan and auto-operation.

The cooling-only model will show "AI" on thetemperature display."AI" could be adjusted by five levels (-2, -1, 0, +1, +2).

Auto-Operation

❈ This auto-operation is not related to "Auto Change Over" function.



Room Temp

Total on

Central Run

Defrost Preheat

PQRCUCA0

FANSPEEDMODE

Out door

Room Temp

Total on

Central Run

Defrost Preheat

PQRCUCA0

FANSPEED

MODE

Out door

1 Press the On/Off button on the remote controller.❈ Plasma function is always operating for working if

product has plasma function.

2 Set the mode to dry operation by pressing the modebutton.When the dry operation is selected, “dh” will be shownon the display panel as shown on the left side.

3 If it is used during rainy season or high humidity, youcan have both effective dehumidifying and airconditioning effect.

* Temperature control is not available during the dryoperation.

1 Press the On/Off button on the remote controller.❈ Plasma function is always operating for working if

product has plasma function.

2 Set the unit to fan operation by pressing the modebutton.

3 When the fan is selected, "Fn" will be displayed on thedisplay panel.

4 • Fan operation does not give cold air, but just the fanair.

• By giving out air that has no difference oftemperature with the indoors, it allows circulation ofthe room.

* Temperature control is not available in the fan operation.

Dry(Dehumidification) by lowering temperature slightly

Dry(Dehumidification) Operation

Fan Operation

Owner’s Manual 15

ENG


PQRCUCA0

FANSPEED

MODE

Po

Hi

Med

Fan Speed Selection in Cooling Operation

Lo

Fan Speed Selection in Heating, Dry, Fan, Auto-Operation

Hi

Med

Lo



SloLo

Med

Hi

Po

Room Temp

Total on

Central Run

1 Select the proper fan speed which you want bypressing the fan speed button on the remotecontroller.• If you press the fan button, the speed of the fan will

change in the order of Low>Medium>Hi>Power.• The initial fan speed is "Hi"• If the product is not compatible with the Fan speed

control, it will not function as per your selection.

You can easily control the fan speed.

Fan Speed Selection



PQRCUCA0

FANSPEEDMODE



SloLo

Med

Hi

Po

Room Temp

Total on

Central Run

1 When the fan speedbutton is pressed on the remotecontroller for about 3 seconds, the indoor temperaturewill be displayed for about 5 seconds, then goes backto the previous screen.• Indoor temperature display may differ according to

slide S/W1 setting on the remote controller.

❈ There would be some difference between actualtemperature you feel and room temperature of remotecontroller , because the temperature of the position isnot uniform which the remote controller is located on.

Indoor Temperature Display

Owner’s Manual 17

ENG


Out door

Room Temp

Total on

Central Run

Defrost Preheat

PQRCUCA0

FANSPEED

MODE

1 You can use the child lock function by pressing bothtemperature increasing button and fan speed buttonfor three seconds. In the initial setting of the child lockfunction, "CL" will be displayed on the display paneland then it will come back to the original mode. Now aclick of another button will not be recognized and the"CL" is being shown on the display panel for threeseconds due to child lock.

2 If you want to cancel the child lock mode, press thetemperature increasing button and the fan speedbutton again for three seconds.

This is a function to prevent tampering of settings by children or others.

Child Lock

Room Temp

Total on

Central Run

Defrost Preheat

PQRCUCA0

FANSPEED

MODE

Out door

1 If one indoor unit operate heating Mode while severalindoor units are operating Cooling Mode, Outdoorsegment and Cooling segment are blinking like screenon the left.➔ It means operation of cooling Mode in outdoor unit .

2 If one indoor unit operate Cooling or DehumidificationMode while several indoor units is operating HeatingMode, Outdoor segment and Cooling segment isblinking.➔ It means operation of Heating Mode in outdoor unit.

3 When push the On/Off button, the indoor unit operatemode automatically which other indoor unit is operatingfor 5 second later.

When One outdoor unit have several indoor units,Different Mode Operation is which each indoor unitoperate different mode.

Different Mode Operation

❈ If the product is not compatible with the Different Mode Operation, Screen will be displayed CH07.

❈ If CH07 is displayed , please change the mode.

❈ Different Mode Operation is not error.


Maintenance and Service

B enzene

SCOURINGCLBARGER

S INNER

Air-Filter

Grille, Case, and Remote Control❏ Turn the system off before cleaning. To clean, wipe with

a soft, dry cloth. Do not use bleach or abrasives.

Supply power must be disconnected beforecleaning the indoor unit.

NOTICE

❏ Never use any of the followings:

• Water hotter than 40°C(104°F)Could cause deformation and/ordiscoloration.

• Volatile substancesCould damage the surfaces of the airconditioner.

1. Clean the filter with a vacuum or warm, soapywater.

• If very dirty, wash with a solution ofdetergent in lukewarm water.

• If hot water 50°C(122°F) or more isused, filter may be deformed.

2. After washing with water, dry well in theshade.

3. Re-install the air filter.

Air FilterThe air filters behind Indoor unit (the suction side) should be checked and cleaned onceevery 2 weeks or more often if necessary.

CAUTION: Before performing any maintenance, turn off the main power tothe system.



Owner’s Manual 19

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When the air conditioner is not going to be used for a long time.

CAUTIONCAUTION

Operation Tips

Helpful informationThe air filters and your electiric bill.If the air filters become clogged with dust, thecooling capacity will drop, and 6% of the electricityused to operate the air conditioner will be wasted.

When it is not going to be used for a long time.

When the air conditioner is to be used again.

Operate the air conditioner on Aircirculation mode for 2 to 3 hours.

• This will dry out the internal parts.

Turn off the circuit breaker.

Turn off the circuit breaker when the air conditioneris not going to be used for a long time. Dirt may collect and may cause a fire.

� Check that the air inlet and outlet of theindoor/outdoor unit are not blocked.

Do not overcool the room.

This is not good for the healthand wastes electricity.

Keep blinds or curtainsclosed.

Do not let direct sunshineenter the room when the airconditioner is in operation.

Make sure that the doors and windows are shut tight.

Avoid opening doors andwindows as much as possibleto keep the cool air in theroom.

Clean the air filter regularly.

Blockages in the air filterreduce the airflow and lowercooling and dehumidifyingeffects. Clean at least onceevery two weeks.

Ventilate the roomoccasionally.

Since windows are keptclosed, it is a good idea toopen them and ventilate theroom now and then.

Before you call for service...


?

Check the following points before requesting repairs or service.... If the malfunction persist,please contact your dealer.

Troubleshooting Tips! Save time and money!

• Have you made amistake in timeroperation?

• Has the fuse blownor has the circuitbreaker beentripped?

• Check that this is nota damp smell exudedby the walls, carpet,furniture or clothitems in the room.

• Condensation occurswhen the airflow fromthe air conditionercools the warm roomair.

• This is the protectorof the mechanism.

• Wait about threeminutes andoperation will begin.

The air conditionerdoes not operate.

The room has apeculiar odor.

It seems thatcondensation is

leaking from the airconditioner.

Air conditioner doesnot operate for about

3 minutes whenrestart.

Does not cool or heateffectively.

The air conditioneroperation is noisy.

Crack sound isheard.

Remote controldisplay is faint, or no

display at all.

• Is the air filter dirty?See air filter cleaninginstructions.

• The room may havebeen very hot whenthe room airconditioner was firstturned on. Allow timefor it to cool down.

• Has the temperaturebeen set incorrectly?

• Are the indoor unit'sair inlet or outlet ventsobstructed?

• For a noise thatsounds like waterflowing.-This is the sound offreon flowing insidethe air conditionerunit.

• For a noise thatsounds like thecompressed airreleasing intoatmosphere.-This is the sound ofthe dehumidifyingwater beingprocessed inside theair conditioning unit.

• This sound is generatedby the expansion/constriction of the frontpanel, etc. due tochanges oftemperature.

• Cleaning the filter,press the Timer buttonand button of wiredremote controller atthe same time for 3sec.

• Are the batteriesdepleted?

• Are the batteriesinserted in theopposite (+) and (-)directions?

WATER RESISTANT: The outdoor side of this appliance is WATER RESISTANT.The indoor side is not water resistant and should not be exposed toexcess water.

NOTICE

Filter sign lamp(LED) is ON.

Before you call for service...

US1. Please call the installing contractor of your product, as warranty service will be provided by them.2. If you have service issues that have not been addressed by the contractor, please call 1-888-865-3026.

CANADA Service call Number # : (888) LG Canada, (888) 542-2623

air conditioner -...

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