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USER MANUAL Inverter FTXG20LV1BS DAIKIN
For your comfort and energy For your comfort and energy
Other functionsOther functions
COMFORT AIRFLOW OUTDOOR UNIT QUIET The airfl ow direction will be in upward while in COOL operation, in downward while in HEAT operation. This function will prevent cold or warm air from directly blowing on your body. Page 15OUTDOOR UNIT QUIET operation lowers the noise level of the outdoor unit. This function is useful when youneed to consider the noise for yourneighbourhood. Page 19
INTELLIGENT EYE The INTELLIGENT EYE sensor detects the human movement in
a room. If no one is in the room for more than 20 minutes, the
operation automatically changes to energy saving operation.
WEEKLY TIMER Up to 4 timer settings can be saved for each day of the week
according to your family’s life style. The WEEKLY TIMER allows
you to set on/off time and the desired temperature.
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ECONOThis function enables effi cient operation by limiting the maximum power consumption. It is useful when using the air conditioner and other electrical devices simultaneously. Page 19 Contents
Read before Operatio
n Safety Precautions 3Names of Parts 5Preparation before Operation 9 Operatio
g Troubleshooting 35The English text is the original instruction. Other languages are translations of the original instructions.
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Keep this manual where the user can easily fi nd it.•
Read the precautions in this manual carefully before operating the unit.•
This appliance is intended to be used by expert or trained users in shops, in light industry and on farms, or for commercial use •
Sound pressure level is less than 70 dB (A).•
The precautions described herein are classifi ed as WARNING and CAUTION. They both contain important information •
regarding safety. Be sure to observe all precautions without fail.
WARNING CAUTION Failure to follow these instructions properly may result in
personal injury or loss of life.
Failure to observe these instructions properly may result in
property damage or personal injury, which may be serious
depending on the circumstances.
Be sure to follow the
Be sure to establish an earth
After reading, keep this manual in a convenient place so that you can refer to it whenever necessary. If the equipment is •
transferred to a new user, be sure also to hand over the manual.
WARNING In order to avoid fi re, explosion or injury, do not operate the unit when harmful gases (e.g. fl ammable or corrosive) •
are detected near the unit.
Be aware that prolonged, direct exposure to cool or warm air from the air conditioner, or to air that is too cool or too •
warm can be harmful to your physical condition and health.
Do not place objects, including rods, your fi ngers, etc., in the air inlet or outlet. Product damage or personal injury •
may result due to contact with the air conditioner’s high-speed fan blades.
Do not attempt to repair, dismantle, reinstall or modify the air conditioner yourself as this may result in water leakage, •
electric shocks or fi re hazards.
Do not use fl ammable spray near the air conditioner, or otherwise fi re may result.•
Do not use a refrigerant other than the one indicated on the outdoor unit (R410A) when installing, moving or •
repairing. Using other refrigerants may cause trouble or damage to the unit, and personal injury.
To avoid electric shocks, do not operate with wet hands.•
Beware of fi re in case of refrigerant leakage. If the air conditioner is not operating correctly, i.e. not generating cool or •
warm air, refrigerant leakage could be the cause. Consult your dealer for assistance. The refrigerant within the air
conditioner is safe and normally does not leak.
However, in the event of a leakage, contact with a naked burner, heater or cooker may result in generation of noxious
gas. Do not use the air conditioner until a qualifi ed service person confi rms that the leakage has been repaired.
Do not attempt to install or repair the air conditioner yourself. Improper workmanship may result in water leakage, •
electric shocks or fi re hazards. Please contact your local dealer or qualifi ed personnel for installation and
When the air conditioner is malfunctioning (giving off a burning odour, etc.) turn off power to the unit and contact your •
local dealer. Continued operation under such circumstances may result in a failure, electric shocks or fi re hazards.
Be sure to install an earth leakage circuit breaker. Failure to install the earth leakage circuit breaker may result in •
electric shocks or fi re.
Be sure to earth the unit. Do not earth the unit to a utility pipe, lightning conductor or telephone earth lead. Imperfect •
earthing may result in electric shocks.
CAUTION Do not use the air conditioner for purposes other than those for which it is intended. Do not use the air conditioner for •
cooling precision instruments, food, plants, animals or works of art as this may adversely affect the performance,
quality and/or longevity of the object concerned.
Do not expose plants or animals directly to airfl ow from the unit as this may cause adverse effects.•
Do not place appliances that produce naked fl ames in places exposed to the airfl ow from the unit as this may impair •
combustion of the burner.
Do not block air inlets nor outlets. Impaired airfl ow may result in insuffi cient performance or trouble.•
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CAUTION Do not sit on the outdoor unit, put things on the unit, or pull the unit. Doing so may cause accidents, such as falling or •
toppling down, thus resulting in injury, product malfunctioning, or product damage.
Do not place objects that are susceptible to moisture directly beneath the indoor or outdoor units. Under certain •
conditions, condensation on the main unit or refrigerant pipes, air fi lter dirt or drain blockage may cause dripping,
resulting in fouling or failure of the object concerned.
After prolonged use, check the unit stand and its mounts for damage. If they are left in a damaged condition, the unit •
may fall and cause injury.
To avoid injury, do not touch the air inlet or aluminium fi ns of the indoor or outdoor units.•
The appliance is not intended for use by unattended young children or infi rm persons. Impairment of bodily functions •
and harm to health may result.
Children should be supervised to ensure that they do not play with the unit or its remote controller. Accidental •
operation by a child may result in impairment of bodily functions and harm health.
Avoid impacts to the indoor and outdoor units, or otherwise product damage may result.•
Do not place fl ammable items, such as spray cans, within 1m of the air outlet.•
The spray cans may explode as a result of hot air from the indoor or outdoor units.
Be careful not to let pets urinate on the air conditioner. Urination on the air conditioner may result in electric shocks or fi re.
Do not wash the air conditioner with water, as this may result in electric shocks or fi re.•
Do not place water containers (vases etc.) above the unit, as this may result in electric shocks or fi re hazards.•
To avoid oxygen depletion, ensure that the room is adequately ventilated if equipment such as a burner is used •
together with the air conditioner.
Before cleaning, be sure to stop unit operation, turn off the circuit breaker or remove the power cord. Otherwise, an •
electric shock and injury may result.
Only connect the air conditioner to the specifi ed power supply circuit. Power supplies other than the one specifi ed •
may result in electric shocks, overheating and fi res.
Arrange the drain hose to ensure smooth drainage. Imperfect drainage may cause wetting of the building, furniture etc.
Do not place objects in direct proximity of the outdoor unit and do not let leaves and other debris accumulate around •
the unit. Leaves are a hotbed for small animals which can enter the unit. Once in the unit, such animals can cause
malfunctions, smoke or fi re when making contact with electrical parts.
Do not place objects around the indoor unit.•
Doing so may have an adverse infl uence on the performance, product quality, and life of the air conditioner.
This appliance is not intended to be used by persons with reduced physical, sensory or mental capabilities, or with •
lack of operation knowledge, unless they have been given supervision or instruction concerning the appliance use by
person responsible for their safety.
Keep out of children’s reach to ensure that they do not play with the appliance.
To install the air conditioner in the following types of environments, consult the dealer.
Places with an oily environment or where steam or soot occurs.•
Salty environment such as coastal areas.•
Places where sulfi de gas occurs such as hot springs.•
Places where snow may block the outdoor unit.•
Be sure to follow the instructions below.
The indoor unit is at least 1m away from any television or radio set (unit may cause interference with the picture or sound).•
The drain from the outdoor unit must be discharged to a place of good drainage.•
Consider nuisance to your neighbours from noises.
For installation, choose a place as described below.
A place solid enough to bear the weight of the unit which does not amplify the operation noise or vibration.•
A place from where the air discharged from the outdoor unit or the operation noise will not annoy your neighbours.•
For power supply, be sure to use a separate power circuit dedicated to the air conditioner.•
Relocating the air conditioner requires specialized knowledge and skills. Please consult the dealer if relocation is •
necessary for moving or remodeling.
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Indoor Unit Appearance of the indoor unit may differ.• Air inlet
sensor It detects the movements • of people and automatically switches between normal operation and energy saving operation. Page 15 Flaps
Page 13 INTELLIGENT EYE lamp
(green) Page 16 Signal receiver and Indoor
unit ON/OFF switch Signal receiverIt receives signals from the remote • controller.When the unit receives a signal, you will • hear a beep sound.Case Sound typeOperation start beep-beepSetting changed beepOperation stop long beepIndoor unit ON/OFF switchPress this switch once to start operation.• Press once again to stop it.For the operation mode setting, refer to the following • table.Mode Temperature setting Airfl ow rateAUTO 25°C AUTOThis switch can be used when the remote controller is • missing.TIMER lampWhen operation by timer has been set, the multi-monitor lamp • periodically changes to orange. After lighting orange for about 5 seconds, it returns to the colour of the operation mode.The multi-monitor lamp will turn orange on and off in cyclic manner while the air conditioner is not in operation.
TIMER lamp colourTIMER lamp colour : For COOLOrange Blue 3 min.5 sec. 5 sec.2 sec.2 sec. 2 sec.Green OrangeDRY :COOL :Blue OrangeHEAT :Red OrangeFAN :White OrangeStop :Off Orange
sensor It detects the air • temperature around the unit. Multi-monitor lamp and
TIMER lamp Multi-monitor lampThe lamp colour changes according to • the operation.Operation Multi-monitor lampAUTO Red/BlueDRY GreenCOOL BlueHEAT RedFAN WhiteTIMER Orange Lower front panel It is located on the back of the • upper front panel during operation.
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Panel support plate Back of the upper front panel
Appearance of the outdoor unit may differ from some models.•
Open the upper front panel
air-purifying fi lter
Refrigerant piping and
It is inside of this cover.•
Receiver50cm or more
To use the remote controller, aim the •
transmitter at the indoor unit. If there
is anything to block signals between
the unit and the remote controller,
such as a curtain, the unit will not
Do not drop the remote controller. Do •
The maximum distance for •
communication is approx. 6m.
Make sure that there are no
obstacles within 50cm under the
Such obstacles, if any, may have an
adverse infl uence on the reception
performance of the receiver and the
reception distance may be
It selects the airfl ow rate setting. •
Page 14 POWERFUL button
POWERFUL operation. • Page 18 Display (LCD)
It displays the current settings.•
(In this illustration, each section is
shown with its displays on for the
purpose of explanation.)
It changes the temperature setting.•
Page 12 ON/OFF button
Press this button once to start •
Press once again to stop it. Page 11 Front cover
Open the front cover. • Page 8 Model ARC466A9
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Open the front cover
COMFORT AIRFLOW and •
It cancels the timer setting.•
It cannot be used for the •
WEEKLY TIMER operation.
It selects the operation mode. •
Preparation before Operation
Slide the front cover to take it off.1.
Set 2 dry batteries AAA.LR03 (alkaline).2.
Set the front cover as before.3.
To fi x the remote controller holder on the wall
Remote controller holder Remote controller Screws
Choose a place from where the signals 1.
Fix the holder to a wall, a pillar, or similar
location with the screws procured locally.
Place the remote controller in the remote
controller holder. The luminance of the indoor unit display can be set.• Press .
NOTE Notes on batteries When replacing the batteries, use batteries of the same type, and replace both old batteries together.• When the system is not used for a long time, take the batteries out.• The batteries will last for approx. 1 year. If the remote controller display begins to fade and the degradation of reception performance occurs • within a year, however, replace both batteries with new, size AAA.LR03 (alkaline).The attached batteries are provided for the initial use of the system.• The usable period of the batteries may be short depending on the manufactured date of the air conditioner.Notes on remote controller Never expose the remote controller to direct sunlight.• Dust on the signal transmitter or receiver will reduce the sensitivity. Wipe off dust with soft cloth.•
Signal communication may be disabled if an electronic-starter-type fl uorescent lamp (such as inverter-type lamps) is in the room. Consult • the shop if that is the case. If the remote controller signals happen to operate another appliance, move that appliance to somewhere else, or consult the service shop.•
To set the luminance of the display
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NOTE Note on setting the clock If the indoor unit’s internal clock is not set to the correct time, the ON TIMER, OFF TIMER and WEEKLY TIMER will not operate punctually.•
Turn on the circuit breaker
After the power is turned on, the fl aps of the indoor unit open and close once to set • the reference position. To set the clock
Press 1. . “ • ” is displayed on the LCD.“ • ” and “ ” blink. Press 2. to set the current day of the week.
3. . “ • ” blinks. Press 4. to set the clock to the present time.
Holding down • or rapidly increases or decreases the time display.
Press 5. . Point the remote controller at the indoor unit when pressing the buttons.• “ • ” blinks.
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AUTO · DRY · COOL · HEAT ·
FAN Operation The air conditioner operates with the operation mode of your choice.From the next time on, the air conditioner will operate with the same operation mode. To start operation
Press 1. and select an operation mode. Each pressing of the button advances the mode setting in sequence.•
AUTO DRY COOL HEAT FAN Press 2. . • “ ” is displayed on the LCD.The multi-monitor lamp lights up.• The colour of the lamp varies depending on the operation mode.Display To stop operation
Press again. “ • ” disappears from the LCD. The multi-monitor lamp goes off.• OperationMulti-monitor lampAUTO Red/BlueDRY GreenCOOL BlueHEAT RedFAN White NOTE MODE Notes on each operation mode
HEAT Since this air conditioner heats the room by taking heat from outdoor air to indoors, the heating capacity becomes smaller in •
lower outdoor temperatures. If the heating effect is insuffi cient, it is recommended to use another heating appliance in combination with the air conditioner. The heat pump system heats the room by circulating hot air around all parts of the room. After the start of HEAT operation, • it takes some time before the room gets warmer. In HEAT operation, frost may occur on the outdoor unit and lower the heating capacity. In that case, the system switches • into defrosting operation to take away the frost. During defrosting operation, hot air does not fl ow out of indoor unit.•
COOL This air conditioner cools the room by releasing the heat in the room outside.• Therefore, the cooling performance of the air conditioner may be degraded if the outdoor temperature is high
DRY The computer chip works to rid the room of humidity while maintaining the temperature as much as possible. It automatically •
controls temperature and airfl ow rate, so manual adjustment of these functions is unavailable.
AUTO In AUTO operation, the system selects an appropriate operation mode (COOL or HEAT) based on the room and outside • temperatures and starts the operation. The system automatically reselects setting at a regular interval to bring the indoor temperature to user-setting level.• FAN This mode is valid for fan only.•
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To change the temperature setting
Press . The displayed items on the LCD will change whenever either one of the buttons is • pressed.COOL operation HEAT operation AUTO operation DRY or FAN operation18-32°C 10-30°C 18-30°CThe temperature setting is not variable.Press to raise the temperature and press to lower the temperature. Operating conditions Recommended temperature setting For cooling: 26-28°C• For heating: 20-24°C• Tips for saving energy Be careful not to cool (heat) the room too much. • Keeping the temperature setting at a moderate level helps save energy.Cover windows with a blind or a curtain.• Blocking sunlight and air from outdoors increases the cooling (heating) effect. Clogged air fi lters cause ineffi cient operation and waste energy. Clean them once in about every 2 weeks.• Notes on the operating conditions The air conditioner always consumes a small amount of electricity even while it is not operating.•
If you are not going to use the air conditioner for a long period, for example in spring or autumn, turn off the circuit breaker.• Use the air conditioner in the following conditions.• Operation outside the humidity or temperature range described in the table may cause a safety device to disable the system.•
MODE Operating conditions If operation is continued out of this range
COOL Outdoor temperature : <2/3/4/5MXS> –10-46°C<RXG> –10-46°CIndoor temperature : 18-32°CIndoor humidity : 80% max.A safety device may work to stop the operation. • (In multi system, it may work to stop the operation of the outdoor unit only.)Condensation may occur on the indoor unit and drip.• HEAT Outdoor temperature : <2MXS> –10-24°C<3/4/5MXS> –15-24°C<RXG> –15-24°CIndoor temperature : 10-30°CA safety device may work to stop the operation.• DRY Outdoor temperature : <2/3/4/5MXS> –10-46°C<RXG> –10-46°CIndoor temperature : 18-32°CIndoor humidity : 80% max.A safety device may work to stop the operation.• Condensation may occur on the indoor unit and drip.•
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Adjusting the Airfl ow Direction
and Rate You can adjust the airfl ow direction to increase your comfort. To start auto swing
Up and down airfl ow direction
Press . “ • ” is displayed on the LCD. The fl aps (horizontal blades) will begin to swing.• Right and left airfl ow direction
Press . “ • ” is displayed on the LCD.The louvres (vertical blades) will begin to swing. • The 3-D airfl ow direction
Press and . “ • ” and “ ” are displayed on the LCD.The fl aps and louvres move in turn.• To cancel 3-D airfl ow, press either • or again.The fl aps or louvres will stop moving. To set the fl aps or louvres at desired position
This function is effective while fl aps or louvres are in auto swing mode.•
Press and when the fl aps or
louvres have reached the desired position.
In the 3-D airfl ow, the fl aps and louvres move in turn.•
“ • ” or “ ” disappears from the LCD.
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To adjust the airfl ow rate setting
Press . Each pressing of • advances the airfl ow rate setting in sequence. Auto Indoor unit quiet Low Middle lowMiddleMiddle highHigh
When the airfl ow is set to “ • ”, indoor unit quiet operation will start and the noise from the unit will become quieter. In indoor unit quiet operation, the airfl ow rate is set to a weak level.•
If the temperature does not reach the desired point, change the airfl ow rate setting.•
In DRY operation, the airfl ow rate setting is not variable.•
NOTE Note on the angles of the fl aps
The fl aps swinging range depends on the operation. (See the fi gure.)•
30° COMFORT AIRFLOWLower limitUpper limitStop operation 70°
25° Lower limitUpper limit / COMFORT AIRFLOWStop operation 50° COOL, DRY and FAN operation
Note on the angles of the fl aps
Using 3-D airfl ow circulates cold air, which tends to collect at the bottom of the room, and hot air, which tends to collect near the ceiling, • throughout the room, preventing areas of cold and hot developing. Notes on airfl ow rate setting
At smaller airfl ow rates, the cooling (heating) effect is also smaller.•
If the air conditioner is operated in COOL or DRY operation with the fl aps kept stopped in the downward direction, the fl aps will automatically • start operating in approximately an hour in order to prevent dew condensation.
CAUTION Always use a remote controller to adjust the angles of the fl aps and louvres.•
- If you attempt to move the fl aps and louvres forcibly by hand when they are swinging, the mechanism may be damaged. - Inside the air outlet, a fan is rotating at a high speed.
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INTELLIGENT EYE Operation
COMFORT AIRFLOW operation
The fl ow of air will be in the upward direction while in COOL operation and in the downward direction while
in HEAT operation, which will provide a comfortable wind that will not come in direct contact with people.
COOL operation HEAT operation
INTELLIGENT EYE operation
“INTELLIGENT EYE” is the infrared sensor which detects the human movement.
If no one is in the room for more than 20 minutes, the operation automatically changes to energy saving
operation. The INTELLIGENT EYE sensor works differently depending on the situation.
[Example] A person is detected in area 1.
A person is detected in area 2.
People are detected in both areas. Area 1 Area 2 No people are detected in the areas. Use the INTELLIGENT EYE operation in combination with the COMFORT AIRFLOW operation.The air conditioner will go into energy-saving mode after 20 minutes.*The airfl ow direction may differ from the illustrated direction depending on the actions and movements of the people in the areas. INTELLIGENT EYE operation is useful for energy saving Energy saving operation If no presence detected in the room for 20 minutes, the energy saving operation will start.• This operation changes the temperature –2°C in HEAT / +2°C in COOL / +2°C in DRY operation from set temperature. •
When the room temperature exceeds 30°C, the operation changes the temperature +1°C in COOL / +1°C in DRY operation from set temperature. This operation decreases the airfl ow rate slightly in FAN operation only.•
Combination of COMFORT AIRFLOW operation and INTELLIGENT EYE operation
The air conditioner can go into operation with the COMFORT AIRFLOW and INTELLIGENT EYE
operations combined.
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To start operation
Press and select the desired mode.
Each time the • is pressed a different setting option is displayed on the LCD.
The INTELLIGENT EYE lamp lights green.• Display
By selecting “ • ” from the following icons, the air conditioner will be in COMFORT AIRFLOW operation combined with INTELLIGENT EYE operation.
No SettingCOMFORT AIRFLOW INTELLIGENT EYE Combination
When the fl aps (horizontal blades) are swinging, selecting any of the modes above •
will stop the fl aps (horizontal blades) from moving.
The lamp will be lit while human movements are detected.•
To cancel operation
Press and select “blank” on the LCD.
The INTELLIGENT EYE lamp goes off.• Display Operation mode ExplanationCOMFORT AIRFLOW The fl aps will adjust the airfl ow direction upward
while cooling, and adjust the airfl ow direction downward while heating. Page 15INTELLIGENT EYEThe sensor will detect the movement of people in the sensing areas and the louvres will adjust the airfl ow direction to an area where people are not present. When there are no people in the sensing areas, the air conditioner will go into energy-saving mode. Page 15 • COMFORT AIRFLOW andINTELLIGENT EYEThe air conditioner will be in COMFORT AIRFLOW operation combined with INTELLIGENT EYE operation. Page 15Blank No function −
NOTE Notes on COMFORT AIRFLOW operation
The position of the fl aps will change, preventing air from blowing directly on the occupants of the room.• POWERFUL operation and COMFORT AIRFLOW operation cannot be used at the same time.• Priority is given to the function of whichever button is pressed last. The airfl ow rate will be set to AUTO. If the up and down airfl ow direction is selected, the COMFORT AIRFLOW operation will be canceled.•
Notes on INTELLIGENT EYE operation Application range is as follows.•
55° Vertical angle 90°(Side view)Horizontal angle 110°(Top view) 7m
While the air conditioner is in INTELLIGENT EYE operation, the louvres will adjust the airfl ow direction if there are people in the sensing •
areas of the INTELLIGENT EYE so that the leftward or rightward airfl ow will not be directed to the people.
If no people are detected in either area 1 or 2 in 20 minutes, the air conditioner will go into energy-saving mode with the set temperature shifted by 2°C. The air conditioner may go into energy-saving operation even if there are people in the areas. This may occur depending on the clothes the people are wearing if there are no movements of the people in the areas. The airfl ow direction from the louvres will be leftward if there are people in both areas 1 and 2. The air will also fl ow left when there is a • person right in front of the sensor as the sensor will judge that there are people in both areas. Due to the position of the sensor, people might be exposed to the airfl ow of the indoor unit if they are close to the front side of the indoor unit.
If there are people close to the front side of the indoor unit or in both areas, it is recommended to use the COMFORT AIRFLOW and
INTELLIGENT EYE operations simultaneously. When both of them are in use, the air conditioner will not direct the airfl ow towards the people.Sensor may not detect moving objects further than 7m away. (Check the application range.)• Sensor detection sensitivity changes according to indoor unit location, the speed of passersby, temperature range, etc.•
The sensor also mistakenly detects pets, sunlight, fl uttering curtains and light refl ected off of mirrors as passersby.• INTELLIGENT EYE operation will not go on during POWERFUL operation.• NIGHT SET mode • Page 21 will not go on during use of INTELLIGENT EYE operation. Notes on combination of COMFORT AIRFLOW operation and INTELLIGENT EYE operation
The airfl ow rate will be set to AUTO. If the up and down airfl ow direction is selected, the COMFORT AIRFLOW operation will be canceled. • Priority is given to the function of whichever button is pressed last. When the INTELLIGENT EYE sensor detects the movement of people it adjusts the airfl ow direction upward (while in COOL operation) and •
downward (while in HEAT operation), by adjusting the fl aps. When the sensor detects people, the louvres will direct the airfl ow in such way
that it will not be blown directly on them. If there are no people, the air conditioner will go into energy-saving operation after 20 minutes.
CAUTION Do not place large objects near the INTELLIGENT EYE sensor.• Also keep heating units or humidifi ers outside the sensor’s detection area. This sensor can detect undesirable objects.
Do not hit or violently push the INTELLIGENT EYE sensor. This can lead to damage and malfunction.•
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POWERFUL Operation POWERFUL operation quickly maximizes the cooling (heating) effect in any operation mode. You can get the maximum capacity. To start POWERFUL operation
Press during operation. POWERFUL operation ends in 20 minutes. Then the system automatically operates • again with the previous settings which were used before POWERFUL operation. “ • ” is displayed on the LCD. To cancel POWERFUL operation
Press again. “ • ” disappears from the LCD.[Example]Normal operation When you want to get the • cooling effect quickly, start the POWERFUL operation.POWERFUL operation POWERFUL operation will • work for 20 minutes.Back to normal operation NOTE Notes on POWERFUL operation When using POWERFUL operation, there are some functions which are not available.• POWERFUL operation cannot be used together with ECONO, COMFORT AIRFLOW or OUTDOOR UNIT QUIET operation.• Priority is given to the function of whichever button is pressed last.POWERFUL operation can only be set when the unit is running. Pressing • causes the settings to be canceled, and “ ” disappears from the LCD. POWERFUL operation will not increase the capacity of the air conditioner if the air conditioner is already in operation with its maximum • capacity demonstrated.In COOL and HEAT operation• To maximize the cooling (heating) effect, the capacity of outdoor unit is increased and the airfl ow rate is fi xed to the maximum setting.
The temperature and airfl ow settings are not variable. In DRY operation• The temperature setting is lowered by 2.5°C and the airfl ow rate is slightly increased. In FAN operation• The airfl ow rate is fi xed to the maximum setting. In AUTO operation• To maximize the cooling (heating) effect, the capacity of outdoor unit is increased and the airfl ow rate is fi xed to the maximum setting. When using priority room setting• See “Note for Multi System”. Page 29
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ECONO / OUTDOOR UNIT QUIET Operation
ECONO operation is a function which enables effi cient operation by limiting the maximum power
This function is useful for cases in which attention should be paid to ensure a circuit breaker will not trip
when the product runs alongside other appliances.
[Example] Normal operation ECONO operationIn case the air conditioner and other appliances which • require high power consumption are used at the same time, a circuit breaker may trip if the air conditioner operates with its maximum capacity.The maximum power consumption of the air conditioner is • limited by using ECONO operation.The circuit breaker will hardly trip even if the air conditioner and other appliances are used at same time. OUTDOOR UNIT QUIET operation
OUTDOOR UNIT QUIET operation lowers the noise level of the outdoor unit by changing the frequency
and fan speed on the outdoor unit. This function is convenient during the night.
[Example] Using the OUTDOOR UNIT QUIET operation during the night.The noise level of the • outdoor unit will be lower.This function is useful when you need to consider the noise for your neighbourhood.
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To start operation
Press and select the desired mode. Each time the • is pressed a different setting option is displayed on the LCD.
ECONO OUTDOOR UNIT QUIETblankNo SettingCombination
To cancel operation
Press and select “blank” on the LCD.
NOTE Notes on ECONO operation ECONO operation can only be set when the unit is running. Pressing • causes the settings to be canceled, and “ ” disappears from the LCD.
ECONO operation is a function which enables effi cient operation by limiting the power consumption of the outdoor unit (operating frequency).
• ECONO operation functions in AUTO, COOL, DRY, and HEAT operation. • POWERFUL and ECONO operation cannot be used at the same time.• Priority is given to the function of whichever button is pressed last. If the level of power consumption is already low, ECONO operation will not drop the power consumption.• Notes on OUTDOOR UNIT QUIET operation If using a multi system, the OUTDOOR UNIT QUIET operation will work only when this function is set on all operated indoor units. However, • if using priority room setting, refer to “Note for Multi System”. Page 29This function is available in COOL, HEAT, and AUTO operation.• This is not available in FAN and DRY operation.POWERFUL operation and OUTDOOR UNIT QUIET operation cannot be used at the same time.• Priority is given to the function of whichever button is pressed last. Even if the operation is stopped by using the remote controller or the indoor unit ON/OFF switch when using OUTDOOR UNIT QUIET • operation, “” will remain on the remote controller display. OUTDOOR UNIT QUIET operation will drop neither the frequency nor fan speed if they have been already dropped low enough.•
This operation is performed with lower power and therefore may not provide a suffi cient cooling (heating) effect.•
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OFF TIMER Operation Timer functions are useful for automatically switching the air conditioner on or off at night or in the morning. You can also use OFF TIMER and ON TIMER in combination. To use OFF TIMER operation Check that the clock is correct.• If not, set the clock to the present time. Page 10 Press 1. . “ • ” is displayed on the LCD.“ • ” blinks.“ • ” and day of the week disappear from the LCD. Press 2. until the time setting reaches the
point you like. Each pressing of either button increases or decreases the time setting by 10 minutes. • Holding down either button changes the time setting rapidly. Press 3. again. “ • ” and setting time are displayed on the LCD.The multi-monitor lamp blinks twice.• The TIMER lamp periodically lights orange. Page 5Display To cancel OFF TIMER operation
Press . “ • ” and setting time disappear from the LCD. “ • ” and day of the week are displayed on the LCD. NOTE Notes on TIMER operation When TIMER is set, the present time is not displayed.• Once you set ON/OFF TIMER, the time setting is kept in the memory. The memory is canceled when remote controller batteries are • replaced. When operating the unit via the ON/OFF TIMER, the actual length of operation may vary from the time entered by the user. (Maximum • approx. 10 minutes)NIGHT SET mode When the OFF TIMER is set, the air conditioner automatically adjusts the temperature setting (0.5°C up in COOL, 2.0°C down in HEAT) to • prevent excessive cooling (heating) for your pleasant sleep.
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To use ON TIMER operation Check that the clock is correct.• If not, set the clock to the present time. Page 10 Press 1. . “ • ” is displayed on the LCD.“ • ” blinks.“ • ” and day of the week disappear from the LCD. Press 2. until the time setting reaches the
point you like. Each pressing of either button increases or decreases the time setting by 10 minutes. • Holding down either button changes the setting rapidly. Press 3. again. “ • ” and setting time are displayed on the LCD.The multi-monitor lamp blinks twice.• The TIMER lamp periodically lights orange. Page 5Display To cancel ON TIMER operation
Press . “ • ” and setting time disappear from the LCD. “ • ” and day of the week are displayed on the LCD. To combine ON TIMER and OFF TIMER A sample setting for combining the 2 timers is shown below.• (Example)Present time: 23:00 (The unit operating)OFF TIMER at 0:00ON TIMER at 14:00Combined
NOTE In the following cases, set the timer again. After a circuit breaker has turned off.• After a power failure.• After replacing batteries in the remote controller.•
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WEEKLY TIMER Operation
Up to 4 timer settings can be saved for each day of the week. It is convenient if the WEEKLY TIMER is set
according to the family’s life style.
Setting example of the WEEKLY TIMER
The same timer settings are made for the week from Monday through Friday while different timer settings are made for the
Use the copy mode to make settings for Tuesday to Friday, because these settings are the same as
those for Monday. Page 26
6:00 8:30 17:30 22:00
25°C 27°C Program 1 Program 2 Program 3 Program 4 ON OFF ON OFF
[Saturday] No timer settings
Make timer settings up to programs 1-4. Page 24 8:00 10:00 19:00 21:00
27°C 27°C25°C ON ON OFF OFF ON OFF OFF ON Program 1 Program 2 Program 3 Program 4
Up to 4 reservations per day and 28 reservations per week can be set in the WEEKLY TIMER. The effective use of the •
copy mode ensures ease of making reservations.
The use of ON-ON-ON-ON settings, for example, makes it possible to schedule operating mode and set temperature •
changes. Furthermore, by using OFF-OFF-OFF-OFF settings, only the turn off time of each day can be set. This will turn
off the air conditioner automatically if the user forgets to turn it off.
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Setting mode Make sure the day of the week and time are set. If not, set the day of the week and time. •
Page 10 6:00 8:30 17:30 22:0025°C 27°CProgram 1 Program 2 Program 3 Program 4ON OFF ON OFF[Monday] Setting Displays Day and number ON/OFF Time Temperature
Press 1. . The day of the week and the reservation number of the current day will be displayed.• 1 to 4 settings can be made per day. • Press 2. to select the desired day of the week
and reservation number.
Pressing • changes the reservation number and the day of the week.
Press 3. . The day of the week and reservation number will be set.• “ • ” and “ ” blink. Press 4. to select the desired mode.
Pressing • changes “ ” or “ ” setting in sequence. Pressing alternates the following items appearing on the LCD in rotational sequence.
ON TIMER OFF TIMER blank
In case the reservation has already been set, selecting “blank” deletes the • reservation. Go to step • 9 if “blank” is selected. To return to the day of the week and reservation number setting, press • .
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NOTE Notes on WEEKLY TIMER operation Do not forget to set the clock on the remote controller fi rst. • Page 10 The day of the week, ON/OFF TIMER mode, time and set temperature (only for ON TIMER mode) can be set with WEEKLY TIMER. • Other settings for ON TIMER are based on the settings just before the operation. Both WEEKLY TIMER and ON/OFF TIMER operation cannot be used at the same time. The ON/OFF TIMER operation has priority if it is set • while WEEKLY TIMER is still active. The WEEKLY TIMER will go into standby state, and “ ” will disappear from the LCD. When ON/OFF TIMER is up, the WEEKLY TIMER will automatically become active. Shutting off the circuit breaker, power failure, and other similar events will render operation of the indoor unit’s internal clock inaccurate. • Reset the clock. Page 10 6. Press to select the desired time. The time can be set between 0:00 and 23:50 in 10 minute intervals.• To return to the ON/OFF TIMER mode setting, press • . Go to step • 9 when setting the OFF TIMER. Press 7. . The time will be set. • “ • ” and the temperature blink. Press 8. to select the desired temperature. The temperature can be set between 10°C and 32°C.• COOL or AUTO: The unit operates at 18°C even if it is set at 10 to 17°C. Page 12HEAT or AUTO: The unit operates at 30°C even if it is set at 31 to 32°C. Page 12 To return to the time setting, press • . The set temperature is only displayed when the mode setting is on.• Press 9. . Be sure to direct the remote controller toward the indoor unit and check for a receiving • tone and fl ashing of the multi-monitor lamp.The temperature and time are set while in ON TIMER operation, and the time is set • while in OFF TIMER operation.The next reservation screen will appear.• To continue further settings, repeat the procedure from step • 4.The multi-monitor lamp blinks twice.• The TIMER lamp periodically lights orange. Page 5The multi-monitor lamp will not blink orange if all the reservation settings are deleted.Display Press
to complete the setting.
“ • ” is displayed on the LCD and WEEKLY TIMER operation is activated. A reservation made once can be easily copied and the same settings used for another • day of the week. Refer to “Copy mode”. Page 26
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Copy mode A reservation made once can be copied to another day of the week. The whole reservation • of the selected day of the week will be copied.
2. to confi rm the day of the week to be
3. . The whole reservation of the selected day of the week will be copied.• Press 4. to select the destination day of the
Press 5. . Be sure to direct the remote controller toward the indoor unit and check for a receiving • tone and fl ashing the multi-monitor lamp.The reservation will be copied to the selected day of the week. The whole reservation • of the selected day of the week will be copied. To continue copying the settings to other days of the week, repeat step • 4 and step 5. The multi-monitor lamp blinks twice. The TIMER lamp periodically lights orange.• Press 6. to complete the setting.
“ • ” is displayed on the LCD and WEEKLY TIMER operation is activated.
NOTE Note on copy mode The entire reservation of the source day of the week is copied in the copy mode.• In the case of making a reservation change for any day of the week individually after copying the content of weekly reservations, press
and change the settings in the steps of “Setting mode”. Page 24
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WEEKLY TIMER Operation
Confi rming a reservation The reservation can be confi rmed.• Setting DisplaysNormal Confi rmation Press 1. . The day of the week and the reservation number of the current day will be displayed.• Press 2. to select the day of the week and the
reservation number to be confi rmed. Pressing • displays the reservation details. To change the confi rmed reserved settings, select the reservation number and press •
. The mode is switched to setting mode. Go to setting mode step 2. Page 24 Press 3. to exit confi rming mode.
To deactivate WEEKLY TIMER operation
Press while “ ” is displayed on
The “ • ” will disappear from the LCD. The TIMER lamp goes off.• To reactivate the WEEKLY TIMER operation, press • again.If a reservation deactivated with• is activated once again, the last reservation mode will be used.
CAUTION If not all the reservation settings are refl ected, deactivate the WEEKLY TIMER operation once. Then press • again to reactivate the WEEKLY TIMER operation.
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To delete reservations
The individual reservation
Press 1. . The day of the week and the reservation number will be displayed.• Press 2. to select the day of the week and the
reservation number to be deleted.
3. . “ • ” and “ ” or “ ” blink. Press 4. and select “ blank ”. Pressing • changes ON/OFF TIMER mode.Pressing alternates the following items appearing on the LCD in rotational sequence.Selecting “blank” will cancel any reservation you may have.•
ON TIMER OFF TIMER blank
Press 5. . The selected reservation will be deleted.• Press 6. .
If there are still other reservations, WEEKLY TIMER operation will be activated.•
The reservations for each day of the week This function can be used for deleting reservations for each day of the week.• It can be used while confi rming or setting reservations.•
Press 1. to select the day of the week to be
2. for about 5 seconds. The reservation of the selected day of the week will be deleted.• All reservations
Hold for about 5 seconds while in normal display. Be sure to direct the remote controller toward the indoor unit and check for a receiving tone. •
This operation is not effective while WEEKLY TIMER is being set.• All reservations will be deleted.•
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Note for Multi System Multi system has one outdoor unit connected to multiple indoor units. Selecting the operation mode
When the priority room setting is active
but the set unit is not operating or when
the priority room setting is inactive When more than one indoor unit is operating, priority is given to the fi rst unit that was turned on.In this case, set the units that are turned on later to the same operation mode as the fi rst unit.Otherwise, they will enter the standby state, and the multi-monitor lamp will fl ash: this does not indicate malfunction. NOTE Notes on operation mode for multi system COOL, DRY and FAN operation may be used at the same time.• AUTO operation automatically selects COOL operation or HEAT operation based on the indoor temperature.• Therefore, AUTO operation is available when selecting the same operation mode as that of the room with the fi rst unit to be turned on.
CAUTION Normally, the operation mode in the room where the unit is fi rst run is given priority, but the following situations are exceptions, so please keep • this in mind. If the operation mode of the fi rst room is FAN operation, then using HEAT operation in any room after this will give priority to HEAT operation. In
this situation, the air conditioner running in FAN operation will go on standby, and the multi-monitor lamp will fl ash.
With the priority room setting active Refer to “Priority room setting” on the next page. NIGHT QUIET mode (Available only for COOL operation)
NIGHT QUIET mode requires initial programming during installation. Please consult your retailer or dealer for assistance. NIGHT QUIET mode reduces the operation noise of the outdoor unit during the nighttime hours to prevent annoyance to neighbours. The NIGHT QUIET mode is activated when the temperature drops 5°C or more below the highest temperature recorded that day. • Therefore, when the temperature difference is less than 5°C, this function will not be activated. NIGHT QUIET mode reduces slightly the cooling effi ciency of the unit.•
OUTDOOR UNIT QUIET operation Refer to “OUTDOOR UNIT QUIET operation”. Page 19 When the priority room setting is active but the set unit is not operating or
when the priority room setting is inactive When using the OUTDOOR UNIT QUIET operation feature with the multi system, set all indoor units to OUTDOOR UNITQUIET operation using their remote controllers.When clearing OUTDOOR UNIT QUIET operation, clear one of the operating indoor units using their remote controller.However OUTDOOR UNIT QUIET operation display remains on the remote controller for other rooms.We recommend you release all rooms using their remote controllers. When the priority room setting is active Refer to “Priority room setting” on the next page. A room B roomC room D roomOutdoor unit 01_EN_3P357704-1.indd 2901_EN_3P357704-1.indd 29 12/17/2013 3:22:21 PM12/17/2013 3:22:21 PMEnglish
COOL/HEAT mode lock
The COOL/HEAT mode lock requires initial programming during installation. Please consult your authorized dealer for
assistance. The COOL/HEAT mode lock sets the unit forcibly to either COOL or HEAT operation. This function is convenient
when you wish to set all indoor units connected to the multi system to the same operation mode.
NOTE The COOL/HEAT mode lock cannot be activated together with the priority room setting.• Priority room setting
The priority room setting requires initial programming during installation. Please consult your authorized dealer for assistance.
The room designated as the priority room takes priority in the following situations.
Operation mode priority
As the operation mode of the priority room takes precedence, the user can select a different operation mode from other •
Room A is the priority room in the examples.•
When COOL operation is selected in room A while operating the following modes in room B, C and D : Operation mode in room B, C and D Status of room B, C and D when the unit in room A is in COOL operationCOOL or DRY or FANCurrent operation mode maintained HEAT The unit enters standby mode. Operation resumes when the room A unit stops operating. AUTO If the unit is set to COOL operation, it continues. If the unit is set to HEAT operation, it enters standby mode. Operation resumes when the room A unit stops operating. Priority when POWERFUL operation is used
Room A is the priority room in the examples.•
The indoor units in rooms A, B, C and D are all operating. If the unit in room A enters POWERFUL operation, operation
capacity will be concentrated in room A. In such a case, the cooling (heating) effi ciency of the units in room B, C and D
may be slightly reduced.
Priority when OUTDOOR UNIT QUIET operation is used
Room A is the priority room in the examples.•
Just by setting the unit in room A to QUIET operation, the air conditioner starts OUTDOOR UNIT QUIET operation.
You don’t have to set all the operated indoor units to QUIET operation.
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How to open the upper front panel How to close the upper front panel Hold the upper front panel by the sides and open it.• Fix the panel with the panel support plate.• Return the panel support plate to its previous position.• Lower the lower front panel to the original position.• Press the upper front panel at both sides.• Cleaning parts
Notes on cleaning For cleaning, do not use the materials as follows.Hot water above 40°C.• Benzine, gasoline, thinner, other volatile oils.• Polishing compound.• Scrubbing brushes, other hard stuff.• CAUTION Before cleaning, be sure to stop the operation and turn off the circuit breaker.• Do not touch the aluminium fi ns of the indoor unit. If you touch those parts, this may cause an injury.•
Vacuum dust or wash the fi lter.•
Page 32 Titanium apatite photocatalytic air-purifying fi lter
Vacuum dust or replace the fi lter.• [Cleaning] [Replacement] Once every 6 months Once every 3 years
Page 33 Upper and lower
front panels With the panels closed, wipe • them with a soft damp cloth. If bothered by dirt
remote controller Wipe them with soft cloth.• If bothered by dirt
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CAUTION Do not touch the aluminium fi ns by bare hand at the time of dismounting or mounting the fi lter.•
Pull out the air fi lters.1. Open the upper front panel.• Set the panel support plate between the ribs on • the unit to fi x the upper front panel. Push the fi lter tab at the center of each air fi lter a • little upwards, then pull it down.
3) Pull down2) PushFilter tab1) PullPanel support plate Ribs Back of the upper front panel
Wash the air fi lters with 2.
water or clean them with
It is recommended to clean the air fi lters every • 2 weeks.If the dust does not come off easilyWash the air fi lters with neutral detergent thinned with • lukewarm water, then dry them up in the shade.Be sure to remove the titanium apatite photocatalytic • air-purifying fi lter. Refer to “Titanium apatite
photocatalytic air-purifying fi lter” on the next page.
Set the fi lters as they were 3.
and close the upper front
panel. Return the panel support plate to its previous • position.Lower the lower front panel to the original • position.Close the upper front panel slowly.• Press the upper front panel at both sides.• Air fi lter
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Take off the titanium 1.
apatite photocatalytic air-
purifying fi lter. Open the upper front panel and pull out the air fi lters. • Hold the recessed parts of the frame and unhook • the 4 claws.
Clean or replace the titanium
apatite photocatalytic air-
[Maintenance] Vacuum dusts, and soak in 2-1 lukewarm water or water for about 10 to 15 minutes if dirt is heavy.Do not remove the fi lter from frame when • washing with water.After washing, shake off remaining 2-2 water and dry in the shade.Since the material is made out of polyester, do not • wring out the fi lter when removing water from it. [Replacement]
Remove the fi lter from the fi lter
frame and attach a new one. Do not throw away the fi lter frame. Reuse the • fi lter frame when replacing the titanium apatite photocatalytic air-purifying fi lter. When attaching the fi lter, check that the fi lter is • set in the tabs.
Dispose of the old fi lter as non-fl ammable waste.•
Set the fi lters as they were and
close the upper front panel. Return the panel support plate to its previous position. • Lower the lower front panel to the original position. • Close the upper front panel slowly.• Press the upper front panel at both sides.•
NOTE Operation with dirty fi lters:• cannot deodorise the air, –cannot clean the air, –results in poor heating or cooling, –may cause odour. – Dispose of old fi lters as non-fl ammable waste. • To order titanium apatite photocatalytic air-purifying • fi lter, contact the service shop where you bought the air conditioner. Item Titanium apatite photocatalytic air-purifying fi lter (without frame) 1 setPart No. KAF970A46 Titanium apatite photocatalytic air-purifying fi lter
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Check that the base, stand and other fi ttings of the outdoor unit are not decayed or corroded.
Check that nothing blocks the air inlets and the outlets of the indoor unit and the outdoor unit. Check that the drain comes smoothly out of the drain hose during COOL or DRY operation. If no drain water is seen, water may be leaking from the indoor unit. Stop operation and consult the service shop if this is the • case. Before a long idle period
Operate the FAN only for several hours on a fi ne day to dry 1.
out the inside. Press • and select “ ” operation.Press • and start the operation. After operation stops, turn off the circuit breaker for the room 2.
Clean the air fi lters and set them again.3.
Take out batteries from the remote controller.4.
When a multi outdoor unit is connected, make sure the HEAT operation is not used at the other room before you use • the FAN operation. Page 29
We recommend periodical maintenance
In certain operating conditions, the inside of the air conditioner may get foul after several seasons of use, resulting in poor • performance. It is recommended to have periodical maintenance by a specialist aside from regular cleaning by the user. For specialist maintenance, contact the service shop where you bought the air conditioner.• The maintenance cost must be borne by the user.• Important information regarding the refrigerant used
This product contains fl uorinated greenhouse gases covered by the Kyoto Protocol.• Refrigerant type:R410A GWP
(1) value:1975(1) GWP = global warming potential Periodical inspections for refrigerant leaks may be required depending on European or local legislation. Please contact your • local dealer for more information.
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These cases are not troubles. The following cases are not air conditioner troubles but have some reasons. You may just continue using it.• Indoor unit
The HEAT operation stops suddenly
and a fl owing sound is heard. The outdoor unit is taking away the frost.• The HEAT operation starts after the frost on the outdoor unit is removed. You should wait for about 4 to 12 minutes. Operation does not start soon. When “ON/OFF” button was pressed soon after operation was stopped. When the mode was reselected. This is to protect the air conditioner.• You should wait for about 3 minutes. The fl aps do not start swinging
immediately. The air conditioner is adjusting the position of the • fl aps. The fl aps will start moving soon.
A sound like a fl ow of water This sound is generated because the refrigerant in • the air conditioner is fl owing. • This is a pumping sound of the water in the air conditioner and heard when the water is pumped out from the air conditioner in cooling or drying operation. The refrigerant fl ows in the air conditioner even if the • air conditioner is not working when the indoor units in other rooms are in operation. Blowing sound This sound is generated when the fl ow of the • refrigerant in the air conditioner is switched over. Ticking sound • This sound is generated when the size of the air conditioner slightly expands or shrinks as a result of temperature changes. Whistling sound This sound is generated when refrigerant fl ows • during defrosting operation. Clicking sound during operation or idle time This sound is generated when the refrigerant control • valves or the electrical parts operate. Clopping sound • This sound is heard from the inside of the air conditioner when the exhaust fan is activated while the room doors are closed. Open the window or turn off the exhaust fan. The outdoor unit emits water or steam. In HEAT operation The frost on the outdoor unit melts into water or steam when the air conditioner is • in defrost operation. In COOL or DRY operation Moisture in the air condenses into water on the cool surface of outdoor unit piping • and drips. The air conditioner stops generating
airfl ow during operation.
Once the set temperature is reached, the airfl ow • rate is reduced and operation stopped in order to avoid generating cool airfl ow (during heating) or in order to keep the humidity from rising (during cooling). Operation will resume automatically when the indoor temperature rises or falls.
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Troubleshooting measures are classifi ed into the following • 2 types on a remedial basis.Take an appropriate measure according to the symptom. Not trouble
These cases are not troubles.•
Please check again before calling a •
The air conditioner does not operate.
(Multi-monitor lamp is off.) Has a circuit breaker turned off or a fuse blown? • Is it a power failure? • Are batteries set in the remote controller? • Is the timer setting correct?•
Cooling (Heating) effect is poor.
Are the air fi lters clean?• Is there anything blocking the air inlet or the outlet of • the indoor and the outdoor units? Is the temperature setting appropriate?• Are the windows and doors closed?• Are the airfl ow rate and the airfl ow direction set • appropriately?Is the air conditioner in ECONO operation or • OUTDOOR UNIT QUIET operation?
An abnormal functioning happens
during operation. The air conditioner may malfunction with lightning or • radio waves. Turn off the circuit breaker, turn it on again and try operating the air conditioner with the remote controller.
Operation stopped suddenly.
(Multi-monitor lamp fl ashes.)
Are the air fi lters clean?• Clean the air fi lters. Is there anything blocking the air inlet or the outlet of • the indoor and the outdoor units? • Turn off the circuit breaker and take all obstacles away. Then turn it on again and try operating the air conditioner with the remote controller. If the lamp still fl ashes, call the service shop where you bought the air conditioner. Are operation modes all the same for indoor units • connected to outdoor units in the multi system? If not, set all indoor units to the same operation mode and confi rm that the lamps fl ash. Moreover, when the operation mode is in AUTO, set all indoor unit operation modes to COOL or HEAT for a moment and check again that the lamps are normal. If the lamps stop fl ashing after the above steps, there is no malfunction. Page 29
Upper and lower front panels do not
open. (Multi-monitor lamp fl ashes.) Is there something caught in the upper and lower front • panels?Remove the object and attempt operation again using the remote controller.If the upper and lower front panels still do not open and the multi-monitor lamp is still fl ashing, consult the service shop where you bought the air conditioner. Upper front panel does not close
• Are the upper front panel locks set appropriately?
Mist comes out of the indoor unit. This happens when the air in the room is cooled into • mist by the cold airfl ow during COOL operation. This is because the air in the room is cooled by the • heat exchanger and becomes mist during defrost operation.
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Hot air does not fl ow out soon after
the start of HEAT operation.
The air conditioner is warming up. You should wait for •
1 to 4 minutes. (The system is designed to start
discharging air only after it has reached a certain
The ON/OFF TIMER does not
operate according to the settings.
Check if the ON/OFF TIMER and the WEEKLY TIMER •
are set to the same time.
Change or deactivate the settings in the WEEKLY TIMER. Page 23
Operation stopped suddenly.
(Multi-monitor lamp is on.)
For system protection, the air conditioner may stop •
operating on a sudden large voltage fl uctuation. It
automatically resumes operation in about 3 minutes.
Remote controller does not work
No remote controller signals are displayed.
The remote controller sensitivity is low.
The display is low in contrast or blacked out.
The display runs out of control.
The batteries are dying and the remote controller is •
malfunctioning. Replace all the batteries with new, size
AAA.LR03 (alkaline). For details, refer to “To set the
batteries” of this manual. Page 9
The outdoor fan rotates while the
air conditioner is not in operation.
After operation is stopped
The outdoor fan continues rotating for another •
60 seconds for system protection.
While the air conditioner is not in operation
When the outdoor temperature is very high, the •
outdoor fan starts rotating for system protection.
The indoor unit gives out odour.
This happens when smells of the room, furniture, or •
cigarettes are absorbed into the unit and discharged
( If this happens, we recommend you to have the
indoor unit washed by a technician. Consult the
service shop where you bought the air conditioner.)
If the upper and lower front panels
are closed while the air conditioner is
in operation, the air conditioner will
stop operating and the multi-monitor
Restart the air conditioner after stopping the operation •
of the air conditioner with the remote controller.
HEAT operation cannot be selected,
even though the unit is heat pump
Check that the jumper (J8) has not been cut. If it has •
been cut, contact the service shop.
01_EN_3P357704-1.indd 3701_EN_3P357704-1.indd 37 12/17/2013 3:22:27 PM12/17/2013 3:22:27 PMEnglish
Call the service shop immediately
WARNING When an abnormality (such as a burning smell) occurs, stop operation and turn off the circuit breaker.
Continued operation in an abnormal condition may result in troubles, electric shocks or fi re.•
Consult the service shop where you bought the air conditioner.•
Do not attempt to repair or modify the air conditioner by yourself.
Incorrect work may result in electric shocks or fi re.•
Consult the service shop where you bought the air conditioner.•
If one of the following symptoms takes place, call the service shop immediately.
The power cord is abnormally hot or damaged.•
An abnormal sound is heard during operation.•
The circuit breaker, a fuse, or the earth leakage circuit •
breaker cuts off the operation frequently.
A switch or a button often fails to work properly.•
There is a burning smell.•
Water leaks from the indoor unit.•
Turn off the circuit breaker and call the service
After a power failure
The air conditioner automatically resumes operation in about 3 minutes. You should just wait for a while.•
If lightning may strike the neighbouring area, stop operation and turn off the circuit breaker for system protection.•
Disposal requirements
Your product and the batteries supplied with the controller are marked with this symbol. This symbol means that
electrical and electronic products and batteries shall not be mixed with unsorted household waste.
For batteries, a chemical symbol can be printed beneath the symbol. This chemical symbol means that the
battery contains a heavy metal above a certain concentration. Possible chemical symbols are:
Pb: lead (>0.004%)
Do not try to dismantle the system yourself: the dismantling of the product, treatment of the refrigerant, of oil and of other parts
must be done by a qualifi ed installer in accordance with relevant local and national legislation.
Units and waste batteries must be treated at a specialized treatment facility for re-use, recycling and recovery.
By ensuring correct disposal, you will help to prevent potential negative consequences for the environment and human health.
Please contact the installer or local authority for more information.
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Fault diagnosis by remote controller The remote controller can receive from the indoor unit a corresponding error code according • to the fault. When 1. is held down for about 5 seconds,
a “ ” indication blinks on the temperature
2. repeatedly until a continuous
The code indication changes as shown below, and notifi es with a long beep.•
NOTE A short beep and two consecutive beeps indicate non-corresponding codes.• To cancel the code display, hold • for about 5 seconds. The code display also cancels itself if the button is not pressed for 1 minute. CODE MEANINGSYSTEM 00 NORMAL U0 REFRIGERANT SHORTAGE U2 OVER-VOLTAGE DETECTION U4
SIGNAL TRANSMISSION ERROR (BETWEEN INDOOR AND OUTDOOR UNIT)INDOOR UNIT A1 INDOOR UNIT PCB ABNORMALITY A5 FREEZE-UP PROTECTION OR HEATING PEAK-CUT CONTROL A6 FAN MOTOR (DC MOTOR) ABNORMALITY C4 INDOOR HEAT EXCHANGER THERMISTOR ABNORMALITY C7 FRONT PANEL OPEN /CLOSE FAULT C9
3MXS, 4MXS, 5MXS series
∗ THERMISTOR OR CT ABNORMALITY
POWER SUPPLY FAULT OR [NOTE 2] NOTE: The LED5 is only available in the 5M series.
POWER SUPPLY FAULT OR [NOTE 2]
GREEN NORMALLY FLASHING ON FLASHING
OFF NOTE Turn off the power and then on again. If the LED display recurs, the outdoor unit PCB is faulty.• Diagnosis marked• ∗ Do not apply to some cases. For details, refer to the service guide.
multisysteem Multi system has one outdoor unit connected to multiple indoor units. Selecteren van de werkingsmodus
∗ STORING THERMISTOR OF CT
VOEDINGFOUT OF [OPMERKING 2]
∗ SOVRACORRENTE IN USCITA
Verifi car as unidades
3MXS, 4MXS, 5MXS serisi
HT Two-dimensional bar code is a code