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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
The equipment complies with requirements of the Technical
Regulation, in terms of restrictions for the use of certain dangerous
substances in electrical and electronic equipment.
P/NO : MFL42619401
KZ.O.02.0561
ENGLISH ITALIANO ESPAÑOL
FRANÇAIS
DEUTSCH
1

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  • Page 1

    ENGLISH
    ITALIANO
    ESPAÑOL
    FRANÇAIS

    OWNER’S MANUAL

    AIR CONDITIONER

    DEUTSCH

    Please read this manual carefully before operating
    your set and retain it for future reference.
    TYPE : CEILING CONCEALED DUCT
    KZ.O.02.0561

    The equipment complies with requirements of the Technical
    Regulation, in terms of restrictions for the use of certain dangerous
    substances in electrical and electronic equipment.

    www.lg.com
    P/NO : MFL42619401



  • Page 2

    Ceiling Concealed Duct Type Air Conditioner Owner’s Manual

    TABLE OF CONTENTS
    A. Safety Precautions.........................3
    B. Product Introduction......................6
    1. Name and function of parts ..........6
    2. What to do before operation.........6
    3. Wired Remote Controller..............6
    C. Operating Instructions...................8
    1. Set the Current Time and day
    of the Week ..................................8
    2. Weekly Programming ...................9
    3. Holiday Setting ...........................10
    4. Timer Setting ..............................10
    5. Operation Mode..........................11
    6. Cooling/Heating Operation Mode11
    7. For Heat Pump Type ..................12
    8. Soft Dry Operation Mode............12
    9. Auto Operation Mode
    (Cooling Type) .........................12
    10. Auto Operation Mode
    (Heat Pump Type) ....................13
    11. Fan Operation Mode ................13
    12. Fan Auto...................................14
    13. Auto Restarting Function..........14
    14. Child Lock Function..................14
    D. Maintenance and Service ............15
    1. Indoor Unit..................................15
    2. Call the service immediately in
    the following situations ...............15
    3. Operation Tips............................16
    4. Troubleshooting Tips!
    Save time and money!................17
    5. Call the service immediately in the
    following situations .....................17

    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
    ■ 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.

    2 Ceiling Concealed Duct Type Air Conditioner



  • Page 3

    Safety Precautions

    Safety Precautions

    WARNING

    This symbol indicates the possibility of death or serious injury.

    CAUTION

    This symbol indicates the possibility of injury or damage.

    WARNING
    Always ground the product.

    • There is a risk of electric shock.
    For electrical work, contact the dealer, seller,
    a qualified electrician, or an Authorized
    Service Center. Do not disassemble or repair
    the product by yourself.
    • There is risk of fire or electric shock.

    Use the correctly rated breaker or fuse.

    • There is risk of fire or electric shock.

    Do not install the product on a defective
    installation stand. Be sure that the
    installation area does not deteriorate with
    age.
    • It may cause product to fall.

    Be sure to check the refrigerant to the
    used. Please read the label on the product.

    Do not use a defective or underrated
    circuit breaker. Use the correctly rated
    breaker and fuse.
    • There is risk of fire or electric shock .
    Always ground the product as per the
    wiring diagram. Do not connect the
    ground wire to gas or water pipes
    lightening rod or telephone ground wire.
    • There is risk of fire or electric shock.

    Do not modify or extend the power cable.
    If the power cable or cord has scrathes or
    skin peeled off or deteriorated then it
    must be replaced.
    • There is risk of fire or electric shock.

    Never install the outdoor unit on a
    moving base or a place from where it
    can fall down.
    • The falling outdoor unit can cause damage or
    injury or even death of a person.
    Don't use a power cord, a plug or a loose
    socket which is damaged.

    • Incorrect refrigerant used can prevent the
    normal operation of the unit.

    • Otherwise it may cause a fire or electrical
    shock.

    Do not place a heater or other heating
    appliances near the power cable.

    Do not allow water to run into electric
    parts. Install the unit away from water
    sources.

    • There is risk of fire and electric shock.

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

    Do not use a multi consent. Always use
    this appliance on a dedicated cicuit and
    breaker.
    • Otherwise it can cause electric shock or fire.
    Install the panel and the cover of control
    box securely.

    • There is risk of fire or electric shock due to
    dust , water etc.
    For installation, removal or reinstall ,
    always contact the dealer or an
    Authorized Service Center.
    • There is risk of fire, electric shock, explosion,
    or injury.
    When the product is soaked (flooded or
    submerged) in water , contact an
    Authorized Service Center for repair
    before using it again.
    • There is risk of fire or eletric shock.

    Do not touch , operate, or repair the
    product with wet hands. Hold the plug by
    hand when taking out
    • There is risk of electric shock or fire.

    Do not store or use or even allow
    flammable gas or combustibles near the
    product.
    • There is risk of fire.

    Owner's Manual 3

    ENGLISH

    To prevent injury to the user or other people and property damage, the following instructions must be followed.
    ■ Incorrect operation due to ignoring instruction will cause harm or damage. The seriousness is classified by
    the following indications.



  • Page 4

    Safety Precautions
    Indoor/outdoor wiring connections must
    be secured tightly and the cable should
    be routed properly so that there is no
    force pulling the cable from the
    connection terminals.

    Safely dispose off the packing materials.
    Like screws, nails, batteries, broken
    things etc after installation or svc and
    then tear away and thraw away the plastic
    packaging bags.

    Make sure to check that the power cable
    plug is not dirty, loose or broken and
    then only insert the plug completely.

    • Improper or loose connections can cause
    heat generation or fire.

    • Children may play with them and cause
    injury.

    • Dirty, loose or broken power plug can
    cause electric shock or fire.

    In outdoor unit the step-up capacitor
    supplies high voltage electricity to the
    electrical components. Be sure to
    discharge the capacitor completely
    before conducting the repair work.

    When installing the unit, use the
    installation kit provided with the product.

    Be sure to use only those parts which
    are listed in the svc parts list. Never
    attempt to modify the equipment.

    • An charged capacitor can cause electrical
    shock.

    • Otherwise the unit may fall and cause severe
    injury.

    • The use of inappropriate parts can cause an
    electrical shock, excessive heat generation or
    fire.

    Do not open the front grille of the product
    during operation. (Do not touch the
    electrostatic filter, if the unit is so equipped.)

    If strange sounds, smell or smoke comes
    from product.Immediately turn the breaker
    off or disconnect the power supply cable.

    Do not use the product in a tightly closed
    space for a long time. Perform ventilation
    regularly.
    • Oxygen deficiency could occur and hence
    harm your health.

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

    • There is risk of electric shock or fire.

    Ventilate the product room from time to
    time when operating it together with a
    stove, or heating element etc.

    Turn the main power off and unplug the
    unit when cleaning or repairing the
    product.

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

    • Oxygen deficiency can occur and hence harm
    your health.
    Take care to ensure that nobody
    especially kids could step on or fall onto
    the outdoor unit.
    • This could result in personal injury and
    product damage.

    • There is risk of electric shock.

    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 plug or unplug the power supply plug to turn the unit
    ON/OFF .
    • There is risk of fire or electric shock.

    • There is risk of product damage or failure, or
    unintended operation.
    Do not place ANYTHING on the power
    cable.
    • There is risk of fire or electric shock.

    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.

    CAUTION
    Two or more people must lift and
    transport the product.
    • Avoid personal injury.
    Keep level even when installing the
    product.
    • To avoid vibration or noise.

    Do not install the product where it will be
    exposed to sea wind (salt spray) directly.
    • It may cause corrosion on the product.
    Do not install the product where the noise
    or hot air from the outdoor unit could
    damage or disturb the neighborhoods.
    • It may cause a problem for your neighbors
    and hence dispute.

    4 Ceiling Concealed Duct Type Air Conditioner

    Install the drain hose to ensure that the
    condensed water is drained away properly.
    • A bad connection may cause water leakage.
    Always check for gas (refrigerant)
    leakage after installation or repair of
    product.
    • Low refrigerant levels may cause failure of
    product.



  • Page 5

    Safety Precautions
    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.

    Do not touch the metal parts of the
    product when removing the air filter.
    • There is risk of personal injury.

    Do not insert hands or other objects
    through the air inlet or outlet while the
    product is operating.
    • There are sharp and moving parts that could
    cause personal injury.
    Do not tilt the unit when removing or
    uninstalling it.
    • The condensed water inside can spill .

    Dismantling the unit, treatment of the
    refrigerant oil and eventual parts should
    be done in accordance with local and
    national standards.

    • It may cause product failure.

    Do not step on or put anyting on the
    product. (outdoor units)
    • There is risk of personal injury and failure of
    product.
    Be cautious when unpacking and
    installing the product.
    • Sharp edges could cause injury.

    Do not mix air or gas other than the
    specified refrigerant used in the system .

    • The chemicals in batteries could cause burns
    or other health hazards.

    Do not expose your skin or kids or
    plants to the cool or hot air draft.
    • This could harm to your health.

    • There is risk of fire, electric shock, or damage
    to the plastic parts of the product.
    Always insert the filter securely after
    cleaning. Clean the filter every two weeks
    or more often if necessary.
    • A dirty filter reduces the efficiency.

    If the refrigerant gas leaks during the
    repair, do not touch the leakaing
    refrigerant gas.
    • The refrigernat gas can cause frostbite (cold
    burn)
    If the refrigerant gas leaks during the
    installation, ventilate the area immediately.

    • If air enters the refrigerant system, an
    excessively high pressure results, causing
    equipment damage or injury.

    • Otherwise it can be harmfull for your health.

    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.

    Do not recharge or disassemble the
    batteries. Do not dispose off batteries in
    a fire.

    • There is risk of fire or product failure.
    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.

    Use a soft cloth to clean. Do not use
    harsh detergents, solvents or splashing
    water etc .

    • They may burn or explode.

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

    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.

    • The chemicals in batteries could cause burns
    or other health hazard.

    • Moisture may condense and wet or damage
    furniture.

    Do not drink the water drained from the
    product.
    • It is not sanitary and could cause serious
    health issues.

    Use a firm stool or ladder when cleaning,
    maintaining or repairing the product at
    an height.
    • Be careful and avoid personal injury.

    Owner's Manual 5

    ENGLISH

    • There is risk of damage or loss of property.

    Do not block the inlet or outlet of air flow.



  • Page 6

    Product Introduction

    Product Introduction
    Name and function of parts
    1

    4

    Air intake
    vents

    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.

    6 7
    2

    5
    Air outlet
    vents

    Remote
    Controller

    3

    8

    What to do before operation
    A
    1

    2

    B
    1

    1

    6 Ceiling Concealed Duct Type Air Conditioner

    If your installation has a customized
    control system, ask your LG dealer for
    the operation that corresponds to your
    system.
    A: Pair system or simultaneous
    operation system
    B: Multi system
    1: Unit with remote controller
    2: Unit without remote controller (when
    used as simultaneous operation)



  • Page 7

    Product Introduction

    Wired Remote Controller

    OPERATION

    SET TEMP

    FAN SPEED

    Room Temp

    AUTO Heater Preheat
    JET Defrost Humidify
    Filter Out door
    ZONE
    1 2 3 4

    Time
    Timer

    Operation unit

    On Off
    Set no. Time 01

    03

    SUB FUNCTION

    HI
    MED
    LO

    07

    09

    11

    2ndF
    Timer

    13

    15

    17

    19

    21

    Timer

    Cancel

    Week

    Hour

    Min

    FAN SPEED

    SUB FUNCTION

    AUTO Heater Preheat
    JET Defrost Humidify
    SLo Filter Out door
    ZONE
    1 2 3 4

    HI
    MED
    LO

    Time

    1

    Operation unit No Func Program set

    On Off
    Set no. Time 01

    23

    03

    05

    07

    09

    11

    13

    15

    17

    19

    21

    23

    3
    Signal receptor
    18
    19
    8
    9
    10
    11
    12
    13
    14

    2

    Program

    SET TEMP
    Room Temp

    Program set
    05

    3
    Signal
    Receiver
    8
    9
    10
    11
    12
    13

    OPERATION

    1

    5
    6
    4

    Holiday
    Plasma
    SET/CLR
    RESET

    14

    7
    16
    15

    Type 1

    2

    Timer

    Cancel

    2ndF

    Program

    Week

    Holiday

    Hour

    Min

    5
    AUTO

    PLASMA

    Set/Clr
    RESET

    6
    4
    17
    7
    16
    15

    Type 2

    1. Operation display

    7. Room Temperature Checking Button

    2. On/Off Button

    8. Timer Cancel Button

    3. Set Temperature Button

    9. Timer Set Button

    4. FAN Operation Button

    10. Week Button

    5. Fan Speed Button

    11. Program Button

    6. Operation Mode Selection Button

    12. Holiday Button
    13. Time Set Button
    14. Set and Clear Button

    Operation Mode

    15. Reset Button
    Cooling Operation

    16. Plasma Button
    17. Fan Auto Button

    Soft Dry Operation

    18. Operation Lamp
    19. 2nd F Button

    Heating Operation
    Auto Operation

    • Cooling Model(

    ), Heat Pump Model(

    )

    NOTE
    ❈ Display temperature can be different form actual room temperature if the remote controller is installed at the
    place where sun-rays are falling directly or the place nearby heat source.
    ❈ The actual product can be different from above contents depending upon model type.

    Owner's Manual 7

    ENGLISH

    AUTO SWING



  • Page 8

    Operating Instructions

    Operating Instructions
    Set the Current Time and day of the Week
    Unless you press any button about 5 (sometimes 10) seconds while setting function, the setting mode returns to
    initial mode.

    1

    Press the '

    ' button.
    Hour

    Each time the button is pressed, the number is changed from 00 to 23.
    You can set the number of the current hour.
    AUTO SWING

    OPERATION

    SET TEMP
    Room Temp

    Operation unit

    2

    Press the '

    03

    SUB FUNCTION

    AUTO Heater Preheat
    JET Defrost Humidify
    Filter Out door
    ZONE
    1 2 3 4

    Time
    Timer

    On Off
    Set no. Time 01

    FAN SPEED
    HI
    MED
    LO

    Hour
    Program set
    05

    07

    09

    11

    13

    15

    17

    19

    21

    23

    ' button.
    Min

    Each time the button is pressed, the number is increased from 00 to 59.
    You can set the number of the current minute.
    AUTO SWING

    OPERATION

    SET TEMP
    Room Temp

    AUTO Heater Preheat
    JET Defrost Humidify
    Filter Out door
    ZONE
    1 2 3 4

    Time
    Timer

    Operation unit

    3

    Press '

    Week

    03

    SUB FUNCTION

    HI
    MED
    LO

    Min
    On Off
    Set no. Time 01

    FAN SPEED

    Program set
    05

    07

    09

    11

    13

    15

    17

    19

    21

    23

    ' button.

    Each time the button is pressed, a day of the week is shifted from sunday to saturday.
    You can set the day of the week.
    AUTO SWING

    OPERATION

    SET TEMP
    Room Temp

    Operation unit

    4

    Press the '

    RESET

    03

    SUB FUNCTION

    AUTO Heater Preheat
    JET Defrost Humidify
    Filter Out door
    ZONE
    1 2 3 4

    Time
    Timer

    On Off
    Set no. Time 01

    FAN SPEED
    HI
    MED
    LO

    Week

    Program set
    05

    07

    09

    11

    13

    15

    17

    19

    21

    23

    ' button.

    If you want to reset the current time and a day of the week, click the Reset button.
    AUTO SWING

    OPERATION

    SET TEMP
    Room Temp

    RESET

    Operation unit

    8 Ceiling Concealed Duct Type Air Conditioner

    03

    SUB FUNCTION

    HI
    MED
    LO

    AUTO Heater Preheat
    JET Defrost Humidify
    Filter Out door
    ZONE
    1 2 3 4

    Time
    Timer

    On Off
    Set no. Time 01

    FAN SPEED

    Program set
    05

    07

    09

    11

    13

    15

    17

    19

    21

    23



  • Page 9

    Operating Instructions

    Weekly Programming
    Press the Program button.
    The remote controller display becomes as shown below. Then '

    Program set

    ', '

    ' and '01' is blinked.
    AUTO SWING

    Program

    OPERATION

    SET TEMP

    FAN SPEED

    Room Temp

    AUTO Heater Preheat
    JET Defrost Humidify
    Filter Out door
    ZONE
    1 2 3 4

    Time
    Timer

    Operation unit

    SUB FUNCTION

    HI
    MED
    LO

    Program set

    On Off
    Set no. Time 01

    03

    AUTO SWING

    OPERATION

    05

    07

    09

    11

    13

    15

    17

    19

    21

    23

    Week

    2

    Press the '
    ' button.
    e.g. To select Thu, press the button 4 times

    SET TEMP

    Timer

    Operation unit

    On Off
    Set no. Time 01

    03

    SUB FUNCTION

    HI
    MED
    LO

    AUTO Heater Preheat
    JET Defrost Humidify
    Filter Out door
    ZONE
    1 2 3 4

    Time

    Week

    3

    FAN SPEED

    Room Temp

    Program set
    05

    07

    09

    11

    13

    15

    17

    19

    21

    23

    Select the time you want.
    If you press
    If you press

    or

    Hour
    SET/CLR

    SET/CLR

    button, then indication part blinks to select On/Off hours

    Min

    button at the selected hour, then indication part is stored

    Hour

    Min

    as unit's On time.
    If you press it again, then that hour is skipped
    For example: Over here, the unit is turned On at 6~8 & 13~22 hours
    and remains Off during rest of time. (Black Bar indicates On hour and
    no bar indicated Off hour interval)

    AUTO SWING

    OPERATION

    SET TEMP
    Room Temp

    03

    SUB FUNCTION

    HI
    MED
    LO

    AUTO Heater Preheat
    JET Defrost Humidify
    Filter Out door
    ZONE
    1 2 3 4

    Time
    Operation unit

    Timer

    On Off
    Set no. Time 01

    FAN SPEED

    Program set
    05

    07

    09

    11

    13

    15

    17

    19

    21

    23

    Similarly you can do the settings for rest of days of the week.

    4

    Press the Program button again to finish Weekly
    Programming.

    5

    The same setting continues following weeks unless you don’t do setting again.
    If you want to keep the settings only for I week, follow the steps below

    Program

    1) Press “CANCEL” & “SET/CLR” buttons simultaneously.
    Then the display becomes as shown in figure below.
    AUTO SWING

    OPERATION

    SET TEMP
    Room Temp

    Operation unit
    03

    SUB FUNCTION

    07

    09

    11

    OPERATION

    15

    17

    19

    21

    23

    Operation unit

    On Off
    Set no. Time 01

    03

    FAN SPEED

    SUB FUNCTION

    HI
    MED
    LO

    AUTO Heater Preheat
    JET Defrost Humidify
    Filter Out door
    ZONE
    1 2 3 4

    Time
    Timer

    13

    SET TEMP
    Room Temp

    AUTO Heater Preheat
    JET Defrost Humidify
    Filter Out door
    ZONE
    1 2 3 4

    Program set
    05

    AUTO SWING

    HI
    MED
    LO

    Time
    Timer

    On Off
    Set no. Time 01

    FAN SPEED

    Program set
    05

    07

    2) Detach your fingers when the display becomes as shown in figure
    Now the weekly program is stored for one week only.

    09

    11

    13

    15

    17

    19

    21

    23

    above .

    NOTE This function can not be applicable to some models.

    Owner's Manual 9

    ENGLISH

    1



  • Page 10

    Operating Instructions

    Holiday Setting
    If Tuesday is a holiday in this week, you may set a holiday.

    1

    Press the Program button.

    AUTO SWING

    OPERATION

    SET TEMP
    Room Temp

    2

    Press the Week button.
    Select Tuesday.

    Operation unit

    Program set

    On Off
    Set no. Time 01

    03

    AUTO SWING

    OPERATION

    05

    07

    09

    11

    13

    SET TEMP
    Room Temp

    3

    Press the Holiday button.

    FAN SPEED

    21

    23

    SUB FUNCTION

    03

    AUTO SWING

    OPERATION

    05

    07

    09

    11

    13

    15

    17

    19

    21

    23

    Holiday

    Then the remote controller will display '
    The outside rectangular means holiday.

    SET TEMP

    '.
    Operation unit
    03

    Program set
    05

    07

    09

    11

    13

    15

    Press the Program button again to finish holiday setting.

    Timer Setting
    This function is used to set either ON or Off interval once in 24 hrs since the setting was done.
    The unit will automatically operate as per the settings.
    Timer

    1

    Press the Timer button.

    2

    Using Hour & Min buttons, change the timer setting
    until the desired time is set.
    AUTO SWING

    OPERATION

    e.g. The unit is turned off after 5 hrs

    Hour
    SET TEMP
    Room Temp

    HI
    MED
    LO

    Time
    Timer

    Operation unit

    On Off
    Set no. Time 01

    03

    FAN SPEED

    ZONE

    Min

    SUB FUNCTION

    AUTO Heater Preheat
    JET Defrost Humidify
    Filter Out door
    1 2 3 4

    Program set
    05

    07

    09

    11

    13

    15

    17

    19

    21

    23

    If you want to cancel the timer setting, press the Timer button again.

    Timer

    NOTE You can not set On Timer Setting and Off Timer Setting at the same time.

    10 Ceiling Concealed Duct Type Air Conditioner

    SUB FUNCTION

    AUTO Heater Preheat
    JET Defrost Humidify
    Filter Out door
    ZONE
    1 2 3 4

    HI
    MED
    LO

    Time
    Timer

    On Off
    Set no. Time 01

    FAN SPEED

    NOTE You cannot set the weekly program for a holiday.

    3

    19

    Program set

    On Off
    Set no. Time 01

    Room Temp

    4

    17

    AUTO Heater Preheat
    JET Defrost Humidify
    Filter Out door
    ZONE
    1 2 3 4

    Time
    Operation unit

    15

    HI
    MED
    LO

    Week
    Timer

    SUB FUNCTION

    AUTO Heater Preheat
    JET Defrost Humidify
    Filter Out door
    ZONE
    1 2 3 4

    Time
    Timer

    FAN SPEED
    HI
    MED
    LO

    Program

    17

    19

    21

    23



  • Page 11

    Operating Instructions

    Operation Mode
    Press the On/Off Button.

    2

    Select the desired Operation.
    Press the Operation Mode Selection Button.
    Each time the button is pressed, the operation mode is shifted as shown in the arrow direction.

    ENGLISH

    1

    HEAT PUMP TYPE
    Operation Display
    AUTO SWING

    OPERATION

    SET TEMP

    03

    07

    09

    SET TEMP

    Timer

    11

    13

    15

    17

    Cooling Operation

    03

    SUB FUNCTION
    AUTO SWING

    Program set
    05

    07

    09

    11

    OPERATION

    SET TEMP

    15

    17

    On Off
    21Set no.
    23 Time 01

    19

    Soft Dry Operation

    03

    SUB FUNCTION
    AUTO SWING

    07

    09

    11

    SET TEMP

    15

    17

    On Off
    21Set no.
    23 Time 01

    19

    Heating Operation

    03

    SUB FUNCTION

    HI
    MED
    LO

    AUTO Heater Preheat
    JET Defrost Humidify
    Filter Out door
    ZONE
    1 2 3 4

    Time
    Operation unit

    Timer
    13

    FAN SPEED

    Room Temp

    AUTO Heater Preheat
    JET Defrost Humidify
    Filter Out door
    ZONE
    1 2 3 4

    Program set
    05

    OPERATION

    HI
    MED
    LO

    Time
    Operation unit

    Timer
    13

    FAN SPEED

    Room Temp

    AUTO Heater Preheat
    JET Defrost Humidify
    Filter Out door
    ZONE
    1 2 3 4

    HI
    MED
    LO

    Time
    Operation unit

    On Off
    21 Set no.
    23 Time 01

    19

    FAN SPEED

    Room Temp

    AUTO Heater Preheat
    JET Defrost Humidify
    Filter Out door
    ZONE
    1 2 3 4

    Program set
    05

    OPERATION

    HI
    MED
    LO

    Time
    Operation unit

    Timer

    On Off
    Set no. Time 01

    AUTO SWING
    SUB FUNCTION

    FAN SPEED

    Room Temp

    Program set
    05

    07

    09

    11

    13

    15

    17

    19

    21

    23

    Auto Operation

    COOLING TYPE
    Operation Display
    AUTO SWING

    OPERATION

    SET TEMP

    FAN SPEED

    Room Temp

    03

    AUTO SWING

    07

    09

    SET TEMP

    13

    15

    17

    19

    21

    On Off
    Set no. Time 01

    23

    Cooling Operation

    03

    SUB FUNCTION

    07

    09

    OPERATION

    SET TEMP

    13

    15

    17

    19

    21

    Operation unit

    On Off
    Set no. Time 01

    23

    Soft Dry Operation

    03

    SUB FUNCTION

    HI
    MED
    LO

    AUTO Heater Preheat
    JET Defrost Humidify
    Filter Out door
    ZONE
    1 2 3 4

    Time
    Timer

    11

    FAN SPEED

    Room Temp

    AUTO Heater Preheat
    JET Defrost Humidify
    Filter Out door
    ZONE
    1 2 3 4

    Program set
    05

    AUTO SWING

    HI
    MED
    LO

    Time
    Operation unit

    Timer

    11

    FAN SPEED

    Room Temp

    Program set
    05

    OPERATION

    AUTO Heater Preheat
    JET Defrost Humidify
    Filter Out door
    ZONE
    1 2 3 4

    Time
    Operation unit

    Timer

    On Off
    Set no. Time 01

    SUB FUNCTION

    HI
    MED
    LO

    Program set
    05

    07

    09

    11

    13

    15

    17

    19

    21

    23

    Auto Operation

    Cooling/Heating Operation Mode

    3

    AUTO SWING

    Set the desired
    temperature.

    OPERATION

    SET TEMP

    FAN SPEED

    Room Temp

    AUTO Heater Preheat
    JET Defrost Humidify
    Filter Out door
    ZONE
    1 2 3 4

    Time
    Operation unit

    Timer

    On Off
    Set no. Time 01

    03

    Cooling Mode
    Setting temperature range is 18~30 °C
    Heating Mode
    Setting temperature range is 16~30°C

    SUB FUNCTION

    HI
    MED
    LO

    Program set
    05

    07

    09

    11

    13

    15

    17

    19

    21

    23

    To raise the Temperature.
    To lower the Temperature.

    4

    Set the fan speed.
    Operation Display
    AUTO SWING

    OPERATION

    SET TEMP
    Room Temp

    Operation unit
    03

    SUB FUNCTION

    07

    09

    11

    OPERATION

    15

    17

    19

    21

    23

    Operation unit

    On Off
    Set no. Time 01

    03

    FAN SPEED

    SUB FUNCTION

    07

    09

    11

    OPERATION

    15

    17

    19

    21

    23

    Operation unit

    On Off
    Set no. Time 01

    03

    FAN SPEED

    SUB FUNCTION

    HI
    MED
    LO

    AUTO Heater Preheat
    JET Defrost Humidify
    Filter Out door
    ZONE
    1 2 3 4

    Time
    Timer

    13

    SET TEMP
    Room Temp

    AUTO Heater Preheat
    JET Defrost Humidify
    Filter Out door
    ZONE
    1 2 3 4

    Program set
    05

    AUTO SWING

    HI
    MED
    LO

    Time
    Timer

    13

    SET TEMP
    Room Temp

    AUTO Heater Preheat
    JET Defrost Humidify
    Filter Out door
    ZONE
    1 2 3 4

    Program set
    05

    AUTO SWING

    HI
    MED
    LO

    Time
    Timer

    On Off
    Set no. Time 01

    FAN SPEED

    Program set
    05

    07

    09

    11

    13

    15

    17

    19

    21

    23

    • Each time the button is pressed, the fan speed mode is shifted.

    Owner's Manual 11



  • Page 12

    Operating Instructions

    For Heat Pump Type

    5
    6

    This air-conditioner is set to the hot start control in order not
    to discharge the cold air during the heating operation. This
    time, the remote controller indicates ‘Preheat’.

    AUTO SWING

    OPERATION

    SET TEMP

    FAN SPEED

    Room Temp

    AUTO Heater Preheat
    JET Defrost Humidify
    Filter Out door
    ZONE
    1 2 3 4

    Time
    Timer

    If the outdoor temperature is too low during the heating
    operation, this air-conditioner is set to the defrosting
    operation and the remote controller indicates ‘Defrost’.

    Operation unit

    Program set

    On Off
    Set no. Time 01

    03

    AUTO SWING

    OPERATION

    05

    07

    09

    11

    13

    SET TEMP

    15

    Operation unit
    03

    19

    21

    23

    SUB FUNCTION

    HI
    MED
    LO

    AUTO Heater Preheat
    JET Defrost Humidify
    Filter Out door
    ZONE
    1 2 3 4

    Time
    Timer

    17

    FAN SPEED

    Room Temp

    On Off
    Set no. Time 01

    SUB FUNCTION

    HI
    MED
    LO

    Program set
    05

    07

    09

    11

    13

    15

    17

    19

    21

    23

    Soft Dry Operation Mode

    7

    Soft Dry Operation is used to remove the humidity softly without overcooling the room, specially when
    the humidity is already low.
    The indoor fan speed is automatically set to the low. But you can change it. Soft dry operation cancels
    and becomes the cooling operation if you press the operation mode selection button.

    Auto Operation Mode (Cooling Type)

    8

    The temperature and fan speed are automatically set by the electronic controls based on the actual
    room temperature. If you want to change the set temperature, close the door on the remote control and
    press the Room Temperature Setting buttons. The cooler or warmer you feel, the more times
    (up to two times) you should press the button. The set temperature will then be changed.
    The temperature can be set within a range of -2~2 by 1 level.
    AUTO SWING

    OPERATION

    SET TEMP
    Room Temp

    Timer

    Operation unit
    03

    SUB FUNCTION

    HI
    MED
    LO

    AUTO Heater Preheat
    JET Defrost Humidify
    Filter Out door
    ZONE
    1 2 3 4

    Time
    On Off
    Set no. Time 01

    FAN SPEED

    Cold Cool

    Proper

    Program set
    05

    07

    09

    11

    13

    15

    17

    19

    21

    23

    (This indication will be shifted to the initial
    Auto Mode Display state after 5 seconds.)

    Warm

    Hot

    To raise the Temperature.
    To lower the Temperature.

    During Auto Operation:
    ❏ You cannot switch the indoor fan speed. It has already been set by the Fuzzy rule.
    ❏ If the system is not operating as desired, manually switch to another mode. The system will not
    automatically switch from the cooling mode to the heating mode, or from heating to cooling, it must be
    done by manually resetting.

    12 Ceiling Concealed Duct Type Air Conditioner



  • Page 13

    Operating Instructions

    Auto Operation Mode (Heat Pump Type)
    AUTO SWING

    The setting temperature
    can be changed, when the
    set temperature button is
    pressed.

    OPERATION

    SET TEMP
    Room Temp

    Operation unit
    03

    SUB FUNCTION

    HI
    MED
    LO

    AUTO Heater Preheat
    JET Defrost Humidify
    Filter Out door
    ZONE
    1 2 3 4

    Time
    Timer

    On Off
    Set no. Time 01

    FAN SPEED

    • The temperature can be set
    within a range of 18°C~30°C
    by 1°C.

    Program set
    05

    07

    09

    11

    13

    15

    17

    19

    21

    23

    To raise the Temperature.
    To lower the Temperature.

    Auto Change Over Operation(Pair system):
    ❏ You can switch the indoor fan speed.
    ❏ The system will automatically switch from the cooling mode to the heating mode, or from heating to cooling,
    when you select Auto Opration mode.

    Auto Operation(Multi system or Simultaneous system):
    ❏ You can switch the indoor fan speed.
    ❏ If the system is not operating as desired, manually switch to another mode. The system will not automatically
    switch from the cooling mode to the heating mode, or from heating to cooling, then you must set the mode and
    the desired temperature again.

    Fan Operation Mode
    This function is used to circulate room air without cooling or heating.

    1

    Press the On/Off Button.

    2

    press FAN Operation Button.

    3

    Each time Fan Speed button is pressed, the fan speed mode is shifted as shown below.

    Hi

    Medium

    Low

    Owner's Manual 13

    ENGLISH

    9



  • Page 14

    Operating Instructions

    Fan Auto
    Fan Auto function is used to control the airflow when outdoor unit is not working.

    1

    Press the Fan Auto button.
    Every time you press the Fan Auto button, it toggles between on and off.
    But for the models that do not support the Fan Auto function, the Fan Auto function
    will not work even though the sign will be shown on the screen.

    2

    If Fan Auto function is On when outdoor unit is not working, Then the
    indoor fan will not operate.
    If Fan Auto function is Off when outdoor unit is not working,
    Then the indoor fan operates at Low speed or at the adjusted speed.

    AUTO

    NOTE Fan Auto function is not applicable to some models.

    Auto Restarting Function

    1

    When the power has been shut off due to power faiure or other reasons, it is automatically operated as
    previous operation condition with the power failre compensation function

    2

    In case of power failure condition, the remote contoller display is off but the setting arte retreved arter
    the power recovery.

    Child Lock Function
    The Child Lock Function disables all the functions of the remote controller.

    Operation procedure
    1. To set the Child-Lock Function
    Press the Timer button and Minute Set button for three seconds. Then
    the operation mode shift to child lock mode and it is displayed ‘CL’ in the
    operation display.
    When you press any button in this time, the remote controller doesn't
    accept to any selected mode and the ‘CL’ is displayed in the remote
    controller for about three seconds. But the Room Temperature function is
    operated in spite of child lock mode.

    AUTO SWING

    14 Ceiling Concealed Duct Type Air Conditioner

    SET TEMP
    Room Temp

    Operation unit
    03

    Timer

    Cancel

    Program

    Week

    SUB FUNCTION

    AUTO Heater Preheat
    JET Defrost Humidify
    Filter Out door
    ZONE
    1 2 3 4

    Program set
    05

    07

    09

    11

    13

    Holiday
    Plasma
    SET/CLR

    Min

    FAN SPEED
    HI
    MED
    LO

    Time
    Timer

    On Off
    Set no. Time 01

    Hour

    2. To cancel the Child-Lock Function
    Repress the Timer button and Minute Set button for three seconds. Then
    the child-lock mode is cancelled and the preselected mode is displayed
    in the remote controller.

    OPERATION

    RESET

    15

    17

    19

    21

    23



  • Page 15

    Maintenance and Service

    Maintenance and Service
    Indoor Unit

    NOTE
    Supply power must be disconnected before cleaning the indoor unit.

    Air Filters
    The air filters behind the front grille should be checked
    and cleaned once every 2 weeks or more often if
    neccessary.

    1

    Remove the Air filters.
    ■ Take hold of the tab and pull slightly forward
    to remove the filter.

    CAUTION: When the air filter is to
    be removed, do not touch the metal
    parts of the indoor unit.
    It may cause an injury.
    Air outlet vent

    Air filters
    Air-Filter

    2

    Clean dirt from the air filter using a vacuum
    cleaner or washing with water.
    ■ If dirt is conspicuous, wash with a neutral
    detergent in lukewarm water.
    ■ If hot water (50°C or more) is used, it may be
    deformed.

    3

    After washing with water, dry well in the
    shade.
    ■ Do not expose the air filter to direct
    sunlight or heat from a fire when drying it.

    4

    Install the air filter.

    Air-Filter
    Air outlet vent

    ■ Never use any of the followings:
    • Water hotter than 40°C.
    Could cause deformation and/or discoloration.
    • Volatile substances.
    Could damage the
    surfaces of the air
    conditioner.
    SI

    Be

    n zene

    N NER

    SCO
    U RIN G
    C LB
    A R GER

    Owner's Manual 15

    ENGLISH

    Grille, Case and Remote Control
    ❐ Turn the system off before cleanining, To clean, wipe with a soft, dry cloth. Do not use bleach or abrasives.



  • Page 16

    Maintenance and Service

    Operation Tips!
    Do not overcool the room.
    This is not good for the health and
    wastes electricity.

    Keep blinds or curtains
    closed.
    Do not let direct sunshine enter the
    room when the air conditioner is in
    cooling operation.

    Clean the air filter regularly.
    Blockages in the air filter reduce the airflow and lower
    air conditioned and dehumidifying effects. Clean at least
    once every two weeks.

    Make sure that the doors
    and windows are shut tight.
    Avoid opening doors and windows
    as much as possible to keep the air
    conditioned air in the room.

    Ventilate the room occasionally.
    Since windows are kept closed, it is a good idea to open
    them and ventilate the room from time to time.

    When the air conditioner is not going....
    When it is not going to be used for a long time.
    1 Operate the air conditioner on Air circulation mode for 2 to 3 hours.
    • This will dry out the internal parts.
    2 Turn off the circuit breaker.

    CAUTION: Turn off the circuit breaker when the air conditioner is not going
    to be used for a long time.
    Dirt may collect and may cause a fire.
    3. Remove the batteries from the Remote Controller.

    When the air conditioner is to be used again.
    ■ Check that the air inlet and outlet of the indoor/outdoor unit are not blocked.

    Helpful information
    The air filters and your electiric bill.
    If the air filters become clogged with dust, the cooling capacity will drop, and 6% of the electricity used to
    operate the air conditioner will be wasted.

    16 Ceiling Concealed Duct Type Air Conditioner



  • Page 17

    Maintenance and Service

    Troubleshooting Tips! Save time and money!
    Case

    Explanation

    The air conditioner does not
    operate.

    • Have you made a mistake in timer operation?
    • On first starting, the indoor unit operates in
    fifteen seconds.
    • Has the fuse blown or has the circuit breaker
    been tripped?
    • Check that this is not a damp smell exuded by the
    walls, carpet, furniture or cloth items in the room.
    • Condensation occurs when the airflow from the
    air conditioner cools the warm room air.
    • This is the protector of the mechanism.
    • Wait about three minutes and operation will begin.
    • Is the air filter dirty? See air filter cleaning instructions.
    • The room may have been very hot when the
    room air conditioner was first turned on. Allow
    time for it to cool down.
    • Has the setting temperature been set incorrectly?
    • Are the indoor unit's air inlet or outlet vents
    obstructed?
    • For a noise that sounds like water flowing.
    -This is the sound of freon flowing inside the air
    conditioner unit.
    • For a noise that sounds like the compressed air
    releasing into atmosphere.
    -This is the sound of the dehumidifying water
    being processed inside the air conditioning unit.
    • This sound is generated by the
    expansion/contraction of the inlet grille, etc. due
    to changes of temperature.
    • Has the circuit breaker been tripped?

    The room has a peculiar odor.
    It seems that condensate is
    leaking from the air Conditioner.
    Air conditioner does not operate
    for about 3 minutes when restart.
    Does not cool or heat effectively.

    The air conditioner operation is
    noisy.

    Crack sound is heard.

    Remote control display is faint, or
    no display at all.

    See page
    10

    15

    11

    -

    -

    Call the service immediately in the following situations
    1. Anything abnormal such as burning smell, loud noise etc. happen. Stop the unit and turn the breaker off. Never
    try to repair by yourself or restart the system in such cases.
    2. Main power cord is too hot or damaged.
    3. Error code is generated by self diagnosis.
    4. Water leaks from indoor unit.
    5. Any switch, breaker (safety, earth) or fuse fails to work properly
    User must carry routine checkup & cleaning to avoid unit’s poor performance.
    In case of special situation, the job must be carried out by service person onlys

    Owner's Manual 17

    ENGLISH

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



  • Page 18

    Memo

    18 Ceiling Concealed Duct Type Air Conditioner



  • Page 19






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