LG CB12L Manuale del proprietario

OWNER’S MANUAL

AIR CONDITIONER

Please read this manual carefully before operating

your set and retain it for future reference.

www.lg.com

TYPE : Ceiling Concealed Duct – Low static

P/NO : MFL42619129

ITALIANO

ESPAÑOL FRANCAIS

DEUTSCH

PORTUGUESE

ΕΛΛΗΝΙΚΆ

NEDERLANDS

ENGLISH

2 Indoor Unit

TABLE OF CONTENTS

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

n 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 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 by authorized personnel only

using only genuine replacement parts.

• Installation work must be performed in accordance with

the National Electric Code by qualified and authorized

personnel only.

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

Prior to Operation ..................6

Product Introduction..............7

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

Maintenance and Service ....22

Before you Call

for Service ..........................24

Safety Precautions

Ownerʼs Manual 3

ENGLISH

Safety Precautions

To prevent injury to the user or other people and property damage, the following instructions must be

followed.

n 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.

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

Be sure not to do.

Be sure to follow the instruction.

WARNING

n Installation

Do not use a defective or

underrated circuit breaker. Use

this appliance on a dedicated

circuit.

• There is risk of fire or electric

shock.

For electrical work, contact the

dealer, seller, a qualified

electrician, or an Authorized

Service Center.

• Do not disassemble or repair the

product. There is risk of fire or

electric shock.

Always ground the product.

• There is risk of fire or electric

shock.

Install the panel and the cover

of control box securely.

• There is risk of fire or electric

shock.

Always install a dedicated

circuit and breaker.

• Improper wiring or installation

may cause fire or electric shock

Use the correctly rated breaker

or fuse.

• There is risk of fire or electric

shock.

Do not modify or extend the

power cable.

• There is risk of fire or electric

shock.

Do not install, remove, or re-

install the unit by yourself

(customer).

• There is risk of fire, electric shock,

explosion, or injury.

Be cautious when unpacking

and installing the product.

• Sharp edges could cause injury.

Be especially careful of the case

edges and the fins on the

condenser and evaporator.

For installation, always contact

the dealer or an Authorized

Service Center.

• There is risk of fire, electric shock,

explosion, or injury.

Do not install the product on a

defective installation stand.

• It may cause injury, accident, or

damage to the product.

Be sure the installation area

does not deteriorate with age.

• If the base collapses, the air

conditioner could fall with it,

causing property damage,

product failure, and personal

injury.

4 Indoor Unit

Safety Precautions

Do not allow water to run into

electric parts.

• It may cause There is risk of fire,

failure of the product, or electric

shock.

Do not store or use flammable

gas or combustibles near the

product.

• There is risk of fire or failure of

product.

Do not use the product in a

tightly closed space for a long

time.

• Oxygen deficiency could occur.

When flammable gas leaks,

turn off the gas and open a

window for ventilation before

turn the product on.

• Do not use the telephone or turn

switches on or off.

There is risk of explosion or fire

If strange sounds, or small or

smoke comes from product.

Turn the breaker off or

disconnect the power supply

cable.

• There is risk of electric shock or

fire.

Stop operation and close the

window in storm or hurricane.

If possible, remove the product

from the window before the

hurricane arrives.

• There is risk of property damage,

failure of product, or electric

shock.

Do not open the inlet grill of the

product during operation.

(Do not touch the electrostatic

filter, 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 Service

Center.

• There is risk of fire or electric

shock.

Be cautious that water could

not enter the product.

• There is risk of fire, electric shock,

or product damage.

Ventilate the product from time to time when

operating it together with a stove, etc.

• There is risk of fire or electric shock.

Turn the main power off when cleaning or

maintaining the product.

• There is risk of electric shock.

n Operation

Do not plug or unplug the

power supply plug during

operation.

• There is risk of fire or electric

shock.

Do not touch(operate) the

product with wet hands.

• There is risk of fire or electrical

shock.

Do not place a heater or other

appliances near the power

cable.

• There is risk of fire and electric

shock.

Do not let the air conditioner

run for a long time when the

humidity is very high and a

door or a window is left open.

• Moisture may condense and wet

or damage furniture.

Take care to ensure that power

cable could not be pulled out or

damaged during operation.

• There is risk of fire or electric

shock.

Do not place anything on the

power cable.

• There is risk of fire or electric

shock.

When the product is not be used for a long time,

disconnect the power supply plug or turn off the

breaker.

• There is risk of product damage or failure, or

unintended operation.

Take care to ensure that nobody could step on or

fall onto the outdoor unit.

• This could result in personal injury and product

damage.

Ownerʼs Manual 5

ENGLISH

Safety Precautions

n Installation

CAUTION

Always check for gas (refrigerant)

leakage after installation or repair

of product.

• Low refrigerant levels may

cause failure of product.

Install the drain hose to ensure

that water is drained away

properly.

• A bad connection may cause

water leakage.

Keep level even when installing

the product.

• To avoid vibration or water

leakage.

n Operation

Do not install the product where the noise

or hot air from the outdoor unit could

damage the neighborhoods.

• It may cause a problem for your

neighbors.

Use two or more people to lift and

transport the product.

• Avoid personal injury.

Do not install the product where

it will be exposed to sea wind

(salt spray) directly.

•

It may cause corrosion on the product.

Corrosion, particularly on the condenser

and evaporator fins, could cause product

malfunction or inefficient operation

.

Do not expose the skin directly

to cool air for long periods of

time. (Don't sit in the draft.)

• This could harm to your health.

Do not use the product for special

purposes, such as preserving foods,

works of art, etc. It is a consumer air

conditioner, not a precision

refrigeration system.

• There is risk of damage or loss

of property.

Do not block the inlet or outlet

of air flow.

• It may cause product failure.

Use a soft cloth to clean. Do

not use harsh detergents,

solvents, etc.

• There is risk of fire, electric

shock, or damage to the plastic

parts of the product.

Do not touch the metal parts of the

product when removing the air

filter. They are very sharp!

• There is risk of personal injury.

Do not step on or put anyting

on the product. (outdoor units)

• There is risk of personal injury

and failure of product.

Always insert the filter securely.

Clean the filter every two weeks

or more often if necessary.

• A dirty filter reduces the efficiency of

the air conditioner and could cause

product malfunction or damage.

Do not insert hands or other objects

through the air inlet or outlet while the

product is operated.

• There are sharp and moving parts

that could cause personal injury.

Do not drink the water drained

from the product.

• It is not sanitary and could cause

serious health issues.

If the liquid from the batteries gets onto your skin

or clothes, wash it well with clean water. Do not

use the remote if the batteries have leaked.

• The chemicals in batteries could cause burns or

other health hazards.

If you eat the liquid from the batteries, brush your

teeth and see doctor. Do not use the remote if the

batteries have leaked.

• The chemicals in batteries could cause burns or

other health hazards.

Use a firm stool or ladder when

cleaning or maintaining the

product.

• Be careful and avoid personal

injury.

Replace the all batteries in the

remote control with new ones of

the same type. Do not mix old and

new batteries or different types of

batteries.

• There is risk of fire or explosion

Do not recharge or

disassemble the batteries.

Do not dispose of batteries in a

fire.

• They may burn or explode.

6 Indoor Unit

Prior to Operation

1. Contact an installation specialist for installation.

2. Use a dedicated circuit.

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 unitʼs power is

accidentally triggered on while cleaning inner parts of the unit.

For repair and maintenance, contact your authorized service dealer.

Preparing for operation

Usage

Cleaning and maintenance

Service

Ownerʼs Manual 7

ENGLISH

Product Introduction

1: Indoor unit

2: Outdoor unit

3: Remote controller

4: Inlet air

5: Discharge air

6: Refrigerant piping, connection

electric wire

7: Drain pipe

8: Ground wire

wire to ground outdoor unit to

prevent electrical shocks.

If your installation has a customized

control system, ask your LG dealer for

the operation that corresponds to your

system.

1: Unit with remote controller

2: Unit without remote controller (when

used as simultaneous operation)

Air intake

vents

Remote

Controller

3

4

5

1

Air outlet

vents

2

8

6

7

Pair system or Simultaneous operation system

Multi system

Name and function of parts

What to do before operation

Product Introduction

8 Indoor Unit

Wired Remote Controller

h Display temperature can be different from actual room temperature if the remote controller is installed at the

place where sun-rays are falling directly or the place nearby heat source.

h The actual product can be different from above contents depending upon model type.

h When using simultaneous operation system, whenever press remote controller button, system will

approximately operate after 1~2 minutes.

NOTE

OPERATION INDICATION

SCREEN

SET TEMPERATURE BUTTON

FAN SPEED BUTTON

ON/OFF BUTTON

OPRATION MODE SELECTION

BUTTON

WIRELESS REMOTE

CONTROLLER RECEIVER

• Some products don't receive the

wireless signals.

AIR FLOW BUTTON

SUBFUNCTION BUTTON

FUNCTION SETTING BUTTON

VENTILATION BUTTON

RESERVATION

UP,DOWN,LEFT,RIGHT BUTTON

• To check the indoor temperature,

press button.

ROOM TEMPERATURE BUTTON

SETTING/CANCEL BUTTON

EXIT BUTTON

1

4

5

7

11

10

9

8

2

3

6

13

12

Please attach the inform label inside of the door.

Please choose proper language depend on your

country.

14

15

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

j Some functions may not be operated and displayed depending on the product type.

Product Introduction

Ownerʼs Manual 9

ENGLISH

This air-conditioner is equipped with wired remote controller basically. But if you want to be available

with wireless remote controller, you pay for it.

Wireless Remote Controller (Accessory)

CAUTION

• Aim at the signal receiver on the wired remote controller so as to operate.

• The remote control signal can be received at a distance of up to about 7m.

•

Be sure that there are no obstructions between the remote controller and the signal

receptor.

• Do not drop or throw the remote controller.

• Do not place the remote controller in a location exposed to direct sunlight, or near the

heating unit, or any other heat source.

• Block a strong light over the signal receptor with a curtain or etc. so as to prevent the

abnormal operation. (ex:electronic quick start, ELBA, inverter type fluorescent lamp)

h

For more details refer to the Wireless Remote Control Accessory manual.

h

The actual product can be different from above contents depending upon model type.

h

The wireless remote controller does not operate When using simultaneous operation system.

NOTE

PQWRHDF0

Operating instructions

10 Indoor Unit

Standard Operation - Standard Cooling

Standard Operation - Heating Mode

Operating instructions

Press button to turn on the

indoor.

1

Press button to select

Cooling operation mode.

2

Adjust the desired temperature

by pressing buttons.

Press button to check the

Room temperature.

When setting the desired

temperature higher than room

temperature, only ventilation

wind is blow out instead of

cooling wind.

3

h Setting Temp Range : 18˚C~30˚C (64˚F~86˚F)

It cools the room by comfortable and clean wind.

It supplies warm wind to the indoor

Press button to turn on the

indoor.

1

Press button to select

Heating mode.

(To check the indoor temperature,

press the room temperature button.)

2

Adjust the desired temperature

by pressing buttons.

When setting the desired

temperature lower than room

temperature, there is only

ventilation wind.

3

• Heating drive only operates at the cooling and heating model.

• Heating doesn't operate at cooling exclusive model.

Operating instructions

Ownerʼs Manual 11

ENGLISH

Press button to turn on the

indoor.

1

Press button to select

Dehumidification mode.

The temperature setting can not be

adjusted during operation this mode.

2

Press the button to select

airflow rate weak → medium →

strong.

(The initial wind powerfulness of

humidity removal drive is 'weak'.)

3

It removes humidity while air-cooling weakly.

• In rainy season or high humidity climate, it is possible to operate simultaneously dehumidifier and

cooling mode to remove humidity effectively.

• The menu item of wind powerfulness might not be partially selected according to the product.

Standard Operation - Dehumidification Mode

Auto Changeover Mode

Repeat pressing button until

icon flash.

1

Press button to change.

❈ Converting temp value : 1~7

2

Press button to complete

and active the setting process.

3

Press button to exit or

system will automatically release

without any input after 25

seconds.

❈ When exiting without pressing

set button, the manipulated

value is not reflected.

4

Change temperature is the function to setup air-cooling and heating drive automatically changeable

according to the temperature at artificial intelligence drive mode.

Operating instructions

12 Indoor Unit

Press button to turn on the

indoor.

1

Press button to select

Artificial intelligence Mode.

2

You can adjust the

temperature as the

picture on the right

for cooling and

heating model.

3

For the case of

cooling exclusive,

as the picture on

the right, you can

adjust the

temperature from

hot to cold, from

"-2" to "2" based

on "00".

4

When cold

When cool

When appropriate

When warm

When hot

Standard Operation - Auto Operation Mode

During operating Auto Operation mode:

• We can use the FAN SPEED button

• We can change manually to other operation mode.

Press button to turn on the

indoor.

1

Press button to select Fan

Mode.

2

Every time pressing button, you

can select wind flow in order of

feeble → weak → medium → strong

→ automatic.

When running ventilation,

compressor of AHU doesn't work.

3

Standard Operation - Fan Mode

It blows the air as it is in the indoor, not the cold wind.

• Ventilation drive does not release cool wind but general fan

• Because it releases the wind that has no temperature difference from the room, it functions to

circulate the inside air.

• The menu item of wind powerfulness might not be partially selected according to the product.

Operating instructions

Ownerʼs Manual 13

ENGLISH

Standard Operation - Temperature Setting/Room Temperature Check

We can simply adjust the desired

temperature.

• Press the buttons to adjust the

desired temperature.

: Increase 1˚C or 2˚F per one time

pressing

: Decrease 1˚C or 2˚F per one time

pressing

Cooling operation:

- The cooling mode doesn't work if

desired temperature is higher than room

temperature Please lower the desired

temperature.

Heating operation:

- The heating mode doesn't work if desired

temperature is lower than room

temperature Please increase the desired

temperature.

1

Whenever press button, the room

temperature will be displayed within 5

seconds.

After 5 seconds, it turns to display the

desired temperature.

Because of location of remote controller,

the real room temperature and the this

displayed value can be different

1

Temperature Setting

Room Temperature Check

• For air-cooling drive, from 18°C to 30°C, and for heating drive, from 16°C to 30°C, you can select

desired temperature.

• 5°C is proper for the difference between room and outside temperature.

• Room temp: Indicate the current room

temperature.

• Set temp: Indicate the temperature that user

want to set.

h

Depend on what kind of controller, the desired

temperature can be adjusted at 0.5˚C or 1˚F.

Operating instructions

14 Indoor Unit

It is the function to use preventing children or others from careless using.

Function setting - Child Lock

Press button repeatedly until

the is flashing.

1

If moving to 'setup' icon area by

using button, 'setup' icon

blinks, and child lock function is

setup if pressing button at

that time.

2

When cancelling lock function, if moving

to 'cancel' icon by pressing button

and then, pressing button, child lock

function is cancelled.

3

Press button to exit.

❈

After setup, it automatically gets out of setup

mode if there is no button input for 25 seconds.

❈

When exiting without pressing set button, the

manipulated value is not reflected.

4

Function Setting - Change Temp

Repeat pressing button until

icon flash.

1

Press button to change.

❈ Converting temp value : 1~7

2

Press button to complete

and active the setting process.

3

Press button to exit or system

will automatically release without any

input after 25 seconds.

❈

When exiting without pressing set button,

the manipulated value is not reflected.

4

Change temperature is the function to setup air-cooling and heating drive automatically changeable

according to the temperature at artificial intelligence drive mode.

Operating instructions

Ownerʼs Manual 15

ENGLISH

Function setting - Changing Current Time

Please press function setup

button. If pressing function setup

button repeatedly, it moves to

time setup menu. ‘Time setup’

icon is indicated at that time and date

blinks at current time indication area.

Ex) Changing Current Time as

'Monday / AM 10:20'.

1

Press key to adjust the current

day.

2

Press key to move to AM/ PM setting

mode (the 'AM/ PM segment will flash).

3

Setting AM/ PM value by

pressing button.

4

Press button to move to 'Hour'

setting mode. (the 'Hour' segment will

flash)

5

Setting Hour value by pressing

button.

6

Operating instructions

16 Indoor Unit

Press button to move to 'Minute'

setting mode. (the 'Minute' segment will

flash)

7

Setting Minute value by pressing

button.

8

Press button to finish.

9

In the process, press

button to release and exit

from setting mode.

(In case of exit with

incomplete information, it will return to

the previous setting)

❈ When exiting without pressing set

button, the manipulated value is not

reflected.

10

Operating instructions

Ownerʼs Manual 17

ENGLISH

Programming - Simple Reservation

Press button to enter the

Programming mode.

(the segment flashing)

Ex) Setting Simple Reservation

time as '3'.

1

Press button to adjust reservation

time.

2

Press button to finish setting.

3

Press button to exit.

❈ After setup, it automatically gets out of

setup mode if there is no button input

for 25 seconds.

❈ When exiting without pressing set

button, the manipulated value is not

reflected.

4

You can set the reservation conveniently in the units of 1 hour from 1 hour to 7 hours.

h When simple reservation setup, product automatically runs or stops after the time that is set.

Operating instructions

18 Indoor Unit

Programming : Weekly Reservation

Please move to 'weekly' by

repeatedly pressing reservation

button. 'Weekly' blinks at this time.

Please move to reservation setup mode by pressing reservation button.

❈ You can setup two weekly reservations for one day, and up to fourteen

reservations for a week.

For example, to setup (Tuesday morning 11:30 turned on ~ afternoon 12:30

turned off), you setup in order below.

2

1

Please select weekly reservation or

weekly reservation ¡ by using

button.

❈ You can setup two reservations,

weekly reservation 1 and weekly

reservation 2, for a day.

3

Please move to 'date' setup part by

using button. If 'date'

indication blinks, please setup date.

You can setup date from Monday to

Sunday.

4

Please move to 'AM/PM' setup part

of turning on by using button.

5

Please move to 'hour' setup part of

turning on by using button.

- It is the part to setup the time at

which air-conditioner is turned on.

6

Please move to 'minute' setup part of turning on by using button.

8

Please change time by using button.

- You can setup hour 0~12.

7

If 'minute' indication blinks, please setup 'minute' by using button

9

You can set the daily reservation in weekly unit.

Weekly reservation keeps operating until before you cancel it once you setup

Operating instructions

Ownerʼs Manual 19

ENGLISH

Please move to 'AM/PM' setup part

of turning off by using button.

- AM/PM setup is identical with

turning on time setup.

10

Please move to 'hour' setup part

of turning off by using Right

button.

- It is the part to reserve the time

at which air-conditioner is

turned off.

- If 'hour' indication blinks, please

setup 'hour'.

❈

Please setup 'hour' and 'minute'

identically with the method to

setup turning on time.

11

If finishing weekly reservation setup, please press setup/cancellation button.

Weekly reservation setup for the day that you set is finished.

12

If you setup with the method identical with above by selecting the day that

you'd like to setup, it operates weekly reservation.

If you setup both turning on reservation time and turning off reservation time

identically, it doesn't operate reservation drive.

13

Weekly reservation explanation

Turning on time

Under bar: the indication that there is weekly reservation for

corresponding day

Reservation

number

Turning off time

h Indoor unit is turned on to desired temperature if it is configured using up/down button during preset of weekly operation time.

(Temperature selection range : 18℃~30℃)

- When desired temperature is not set, it is turned on automatically with desired temperature of previous operation.

Operating instructions

20 Indoor Unit

Programming - Sleep Reservation

Press button to enter the

Programming mode.

Ex) Setting Sleep Reservation

time as '3'.

1

Repeat pressing button to enter the

SLEEP reservation setting mode.

( segment flashing)

2

Press button to adjust reservation

time.

The SLEEP reservation time is from 1 to

7 hours.

3

Press button to finish setting.

Whenever reservation is done.

4

Press button to exit.

❈ After setup, it automatically gets out of

setup mode if there is no button input

for 60 seconds.

❈ When exiting without pressing set

button, the manipulated value is not

reflected.

- If reservation is setup, 'sleep'

indication shows up at the lower part

of LCD screen.

5

If finishing sleep reservation setup,

air-conditioner product operates sleep

drive and stops after the time that is set.

6

Sleep reservation is the function of air-conditioner to run and stop after certain period of time at sleep

mode before sleep. When connected to a ventilation product and set the sleep reservation, when it

goes to the sleep mode, after the set time has elapsed.

Please reserve proper time at sleeping. (Too much air-cooling is not good for your health.)

• Because it automatically adjusts desired temperature for comfortable air-cooling at sleep drive,

there could be difference between remote controller's desired temperature and air-conditioner

body's desired temperature.

• Sleep reservation operates as off reservation for the product whose temperature adjustment isn't

controlled by unit of 0.5°C.

CAUTION

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