DAIKIN ROOM AIR CONDITIONER
OPERATION MANUAL
MODELS
FTXS09HVJU
FTXS12HVJU
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CONTENTS
READ BEFORE OPERATION
Safety Precautions....................................................................2
Name of Parts ...........................................................................4
Preparation before Operation ...................................................8
OPERATION
AUTO · DRY · COOL · HEAT · FAN Operation .......................10
Adjusting the Airflow Direction ................................................12
INTELLIGENT EYE Operation ................................................13
POWERFUL Operation ...........................................................15
OUTDOOR UNIT QUIET Operation .......................................16
HOME LEAVE Operation ........................................................17
TIMER Operation ....................................................................19
CARE
Care and Cleaning ..................................................................21
TROUBLE SHOOTING
Trouble Shooting.....................................................................25
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Safety Precautions
• Keep this manual where the operator can easily find it.
• Read this manual carefully before starting the unit.
• For safety reason, the operator must read the following cautions carefully.
• This manual classifies precautions into DANGER, WARNING and CAUTION. Be sure to follow all precautions below: they are all
important for ensuring safety.
DANGER
Indicates an imminently hazardous
situation which, if not avoided, will result
in death or serious injury.
WARNING
If you do not follow these instructions
exactly, the unit may cause property
damage, personal injury or loss of life.
Never do.
CAUTION
If you do not follow these instructions exactly,
the unit may cause minor or moderate
property damage or personal injury.
Be sure to follow the instructions.
Be sure to ground the air conditioner.
Never touch the air conditioner (including the remote
controller) with a wet hand.
Never cause the air conditioner (including the remote
controller) to get wet.
DANGER
• For refrigerant leakage, consult your dealer.
Refrigerant gas is heavier than air and replaces oxygen. A massive leak could lead to oxygen depletion, especially in
basements, and an asphyxiation hazard could occur leading to serious injury or death.
• Refrigerant gas may produce a toxic gas if it comes in contact with fire such as from a fan heater, stove or cooking
device. Exposure to this gas could cause severe injury or death.
• Any abnormalities in the operation of the air conditioner such as smoke or fire could result in severe injury or death.
Turn off the power and contact your dealer immediately for instructions.
• Do not install the unit in an area where flammable materials are present due to risk of explosion resulting in serious injury or death.
• If equipment utilizing a burner is used in the same room as the air conditioner, there is the danger of oxygen deficiency
which could lead to an asphyxiation hazard resulting in serious injury or death.
Be sure to ventilate the room sufficiently to avoid this hazard.
• Safely dispose of the packing materials.
Packing materials, such as nails and other metal or wooden parts, may cause stabs or other injuries. Tear apart and
throw away plastic packaging bags so that children will not play with them. Children playing with plastic bags face the
danger of death by suffocation.
WARNING
• It is not good for health to expose your body to the air flow for a long time.
• Do not put your finger, a rod or other objects into the air outlet or inlet. As the fan is rotating at a high speed and could,
cause injury. Always keep small children away from the unit during operation.
• Do not attempt to repair, relocate, modify or reinstall the air conditioner by yourself. Incorrect work or modifications could
cause electric shocks, fire or other damage.
For repairs and reinstallation, consult your Daikin dealer for advice and information.
• If the air conditioner is not cooling (heating) properly, the refrigerant may be leaking, contact your authorized dealer or
qualified service repairman.
When making repairs which requires adding refrigerant, consult with your authorized dealer or qualified service repairman.
• Do not attempt to install the air conditioner by yourself. Improper installation could result in water leakage, electric shocks
or fire. For installation, consult your authorized dealer or a qualified technician.
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CAUTION
• The air conditioner must be grounded to the earth. Improper grounding may result in electric shocks. Do not connect the earth
grounding wire to a gas pipe, water pipe, lightning rod, or a telephone ground line. Follow all local and state electrical codes.
• Do not use this unit for cooling precision instruments, food, plants, animals or works of art.
• Never expose little children, plants or animals directly to the air flow.
• Do not block air inlets nor outlets. Impaired air flow may result in poor performance or equipment problems.
• Do not stand, sit, or place objects on the outdoor unit. To avoid injury, do not remove the fan guard.
• Do not place anything under the indoor or outdoor unit that must be kept away from moisture , such as electrical or
electronic equipment. In certain conditions, moisture in the air may condense and drip.
• Check the unit stand and fittings for damage annually.
• Do not touch the air inlet and aluminum fins of outdoor unit. It may cause injury and/or damage the heat transfer surface.
• This appliance is NOT intended for use by young children or impaired persons without proper supervision.
• Young children should be supervised to ensure that they DO NOT play with or near the air flow of this appliance.
• Do not pull at the conduit or hang anything on it. Otherwise it will cause fire or electric shock.
• Do not touch the heat exchanger fins. Improper handling may result in injury.
• Do not turn off the power immediately after stopping operation. Always wait at least five minutes before turning off the
power. Otherwise, water leakage and trouble may occur.
• To avoid personal injury or equipment damage be sure to stop the operation, turn the breaker off or pull out the supply
cord before cleaning or servicing the unit. NOTE: More than one disconnect may be required to shut off all power.
• Do not connect the air conditioner to a power supply different from the one specified. It may cause improper operation or fire.
• Depending on the environment, state and local electrical codes, a ground fault circuit interrupter may be required.
Improper grounding or lack of a ground fault circuit interrupter may result in electrical shock, injuries, or death.
• Arrange the drain hose to ensure smooth drainage. Improper drainage may cause water damage to the building, or it’s furnishing.
• Depending on the usage environment, water may leak from the air conditioner. If this happens, contact your Daikin Dealer.
• The remote controller should be installed in such away that children cannot play with it.
• 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 fire when making contact with electrical parts.
• Do not operate the air conditioner with wet hands.
• Do not wash the indoor unit with excessive water, only use a slightly wet cloth.
• Do not place things such as vessels containing water or anything else on top of the unit. Water may penetrate into the
unit and degrade electrical insulations, resulting in an electric shock.
Installation site.
To install the air conditioner in the following types of environments, consult the dealer.
• Places with an oily ambient or where steam or soot occurs.
• Salty environment such as coastal areas.
• Places where sulfide gas occurs such as hot springs.
• Places where snow may block the outdoor unit.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.
Electrical work.
• For power supply, be sure to use a separate power circuit dedicated to the air conditioner.
System relocation.
• 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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Name of Parts
Indoor Unit
Air-purifying filter with photocatalytic deodorizing function
Air inlet
Front panel
Air filter
Panel tab
Air outlet
Louvers (vertical blades)
Page 12
• The louvers are inside of the air
outlet.
Flaps (horizontal blades)
Page 12
Room temperature
sensor
• It senses the air temperature
around the unit.
INTELLIGENT EYE
Page 13
sensor
• It detects the movements of
people and automatically
switches between normal
operation and energy saving
operation.
Control panel
TIMER lamp (yellow)
Page 19
HOME LEAVE lamp (red)
Page 17
• Lights up when you use HOME
LEAVE Operation.
Operation lamp (green)
ON
OFF
Signal receiver
Indoor unit ON/OFF switch
• Push this switch once to start operation.
Push once again to stop it.
• The operation mode refer to the following table.
Mode
Temperature setting
Airflow rate
AUTO
77°F(25°C)
AUTO
• This switch is useful when the remote controller is missing.
• It receives signals from the remote
controller.
• When the unit receives a signal,
you will hear a short beep.
• Operation start ......... beep-beep
• Settings changed ..... beep
• Operation stop ......... beeeeep
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Open the front panel
Air filter
Air-purifying filter
with photocatalytic
deodorizing function
Outdoor Unit
• Appearance of the outdoor unit may differ from some models.
Air inlet: (Back and side)
Refrigerant piping and
inter-unit cable
Air outlet
Drain hose
Earth terminal
• It is inside of this cover.
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Name of Parts
Remote Controller: ARC452A7
Signal transmitter
Receiver
Display (LCD)
• 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
operate.
• Do not drop the remote controller. Do
not get it wet.
• The maximum distance for
communication is approximately
23 ft (7m).
TEMPERATURE
adjustment buttons
• It changes the temperature setting.
Page 10
ON/OFF button
FAN setting button
• It selects the airflow rate setting.
Page 11
POWERFUL button
• POWERFUL operation
• It displays the current settings.
(In this illustration, each section is
shown with its displays ON for the
purpose of explanation.)
Page 15
• Press this button once to start
operation.
Press once again to stop it. Page 10
Front cover
• Open the front cover.
Page 7
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Open the front cover
MODE selector button
• It selects the operation mode.
(AUTO/DRY/COOL/HEAT/
FAN) Page 10
HOME LEAVE button
• HOME LEAVE operation
Page 17
SWING button
• Adjusting the Airflow Direction
Page 12
SENSOR button
QUIET button
• INTELLIGENT EYE operetion
• OUTDOOR UNIT QUIET
operation Page 16
Page 13
ON TIMER button
OFF TIMER button
Page 20
Page 19
TIMER CANCEL
button
• It cancels the timer setting.
CLOCK button
Page 19,20
Page 9
SELECT button
• It changes the ON/OFF
TIMER settings. Page 19,20
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Preparation before Operation
To set the batteries
2
Position + and
– correctly!
3
1
1. Slide the front cover to take it off.
2. Set 2 dry batteries AAA.LR03 (alkaline).
3. Set the front cover as before.
To fix the remote controller holder on the wall
Set.
1. Choose a place from where the signals reach
Pull.
the unit.
Remote controller
holder
2. Fix the holder to a wall, a pillar, etc. with the
screws supplied with the holder.
3. Place the remote controller in the remote
controller holder.
Celsius/Fahrenheit display switch
• The Celsius or Fahrenheit display is selectable with the following buttons.
Press
and
buttons simultaneously
for 5 seconds.
• The temperature will be displayed in Fahrenheit if it is presently displayed in Celsius, and
vice versa.
ATTENTION
About batteries
• When replacing the batteries, use batteries of the same type, and replace the 2 old batteries together.
• When the system is not used for a long time, take the batteries out.
• The batteries will last for approximately 1 year. If the remote controller display begins to fade and the degradation of reception performance occurs
within a year, however, replace both 2 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.
About 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 fluorescent 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.
Celsius/Fahrenheit display change function of remote controller
• The set temperature may increase when the display is changed to Celsius from Fahrenheit, because a fraction of 0.5°C is rounded up.
• Example: A set temperature of 64°F (equivalent to 18.5°C) will be converted into 19°C.
When the display is changed to Fahrenheit again, the set temperature will be converted into 66°F (equivalent to 19°C) instead of the
original set temperature (64°F) but a set temperature of 66°F (equivalent to 19°C) will be converted into 19°C with no temperature change.
• A reception sound will go off for the transmission of set temperature to the indoor unit at the time of setting the Celsius/Fahrenheit display change function.
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Turn the breaker ON
• Turning ON the breaker closes the flap. (This is a normal procedure.)
To set the clock
1. Press
2. Press
3. Press
.
“
” is displayed.
“
” and “
” blinks.
to set the current day of the week.
.
“
4. Press
” blinks.
to set the clock to the present time.
• Holding down button rapidly increases or decreases the time display.
5. Press
.
• Always point the remote controller at the indoor unit when pushing the buttons when setting the indoor unit’s internal clock.
“
” blinks.
NOTE
Tips for saving energy
• Be careful not to COOL (HEAT) the room too much.
Recommended temperature setting
Keeping the temperature setting at a moderate level helps save energy.
For COOL: 78°F – 82°F (26°C – 28°C)
• Cover windows with a blind or a curtain.
For HEAT: 68°F – 75°F (20°C – 24°C)
Blocking sunlight and air from outdoors increases the cooling (heating) effect.
• Clogged air filters cause inefficient operation and waste energy. Clean them once in about every two weeks.
Please note
• The air conditioner always consumes 50-120 btu/h (15-35 watts) 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 the breaker OFF.
• Use the air conditioner in the following conditions.
Mode
Operating conditions
COOL
Outdoor temperature : 14 to 115°F (–10 to 46°C)
Indoor temperature : 64 to 90°F (18 to 32°C)
Indoor humidity : 80% max.
HEAT
Outdoor temperature : 5 to 64°F (–15 to 18°C)
Indoor temperature : 50 to 86°F (10 to 30°C)
DRY
Outdoor temperature : 14 to 115°F (–10 to 46°C)
Indoor temperature : 64 to 90°F (18 to 32°C)
Indoor humidity : 80% max.
If operation is continued out of this range
• A safety device may work to stop the operation.
Under 0°F and over 115°F outdoor temperature.
• See Note 2 for 0°F to 14°F operation.
• Condensation may occur on the indoor unit and drip.
• A safety device may work to stop the operation.
Under 0°F or over 64°F outdoor temperature.
• See the Note 3 for 0°F to 5°F.
• A safety device may work to stop the operation.
• Condensation may occur on the indoor unit and drip.
• Operation outside this humidity or temperature range may cause a safety device to disable the system.
RXS09/12HVJU ONLY
<Note 1> A Breaker must be turned on for 24 hours before the operation start if the ambient is below 14 °F (–10°C),
otherwise the unit will not start operation smoothly.
<Note 2> 1. Use low outdoor ambient COOL operation for equipment cooling applications only.
This operation is not intended for human comfort cooling.
2. Intermittent noises may be produced by the indoor unit due to the outdoor fan rotation speed change.
3. Do not place humidifiers or other items which might raise the humidity in rooms at 0 to 14 °F (–10°C) outdoor
temperature. A humidifier may cause condensation to drip from the indoor unit outlet vent.
4. Set the indoor unit at the highest airflow rate.
<Note 3> When the outdoor temperature is 0 to 5 °F (–18 to –15°C), the system may not have sufficient cooling capacity.
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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
1. Press
and select a operation mode.
• Each pressing of the button advances the mode setting in sequence.
AUTO
2. Press
•“
DRY
COOL
HEAT
FAN
.
” is displayed on the LCD.
• The OPERATION lamp lights up.
ON
OFF
Control panel
To stop operation
Press
•“
again.
” disappears from the LCD.
• Then OPERATION lamp goes off.
To change the temperature setting
Press
or
.
• The displayed items on the LCD will change whenever either one of the buttons is pressed.
DRY or FAN mode
The temperature setting is not
variable.
COOL mode
HEAT mode
AUTO mode
64~90°F
(18~32°C)
50~86°F
(10~30°C)
64~86°F
(18~30°C)
to raise the temperature and press
Press
temperature.
to lower the
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To change the airflow rate setting
Press
.
DRY mode
The airflow rate setting is not variable.
AUTO or COOL or HEAT or FAN mode
Five levels of airflow rate setting from
“ ” to “ ” plus “
” and “
” are available.
• Indoor unit quiet operation
When the airflow is set to “ ” , the noise from the indoor unit will become quieter.
Use this when making the noise quieter.
The unit might lose capacity when the airflow rate is set to a weak level.
• Each pressing of the button advances the airflow rate setting in sequence.
NOTE
Note on HEAT operation
• 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 insufficient, 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 flow out of indoor unit.
Note on COOL operation
• This air conditioner cools the room by blowing the hot air in the room outside, so if the outside temperature is high, the performance of the air
conditioner drops.
Note on DRY operation
• The computer chip works to rid the room of humidity while maintaining the temperature as much as possible. It automatically controls temperature
and airflow rate, so manual adjustment of these functions is unavailable.
Note on AUTO operation
• In AUTO operation, the system selects a temperature setting and an appropriate operation mode (COOL or HEAT) based on the room
temperature at the start of the operation.
• The system automatically reselects setting at a regular interval to bring the room temperature to user-setting level.
• If you do not like AUTO operation, manually change the set temperature.
Note on FAN operation
• This is valid for fan only.
Note on airflow rate setting
• At smaller airflow rates, the cooling (heating) effect is also smaller.
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Adjusting the Airflow Direction
You can adjust the airflow direction to increase your comfort.
Adjusting the upper and lower airflow direction
To adjust the flaps (horizontal blades)
1. Press
•“
.
” is displayed on the LCD and the flaps will begin to swing.
2. When the flaps have reached the desired position,
press
once more.
• The flaps will stop moving.
• “ ” disappears from the LCD.
Adjusting the right and left airflow direction
To adjust the louvers (vertical blades)
• Hold the knob and move the louvers.
(You will find a knob on the left-side and the right-side blades.)
NOTE
Notes on flaps and louvers angles
• When “SWING button” is selected, the flaps swinging range depends on the operation mode.
COOL AND DRY MODE
(See the figure.)
Three-Dimensional (3-D) Airflow
• Using three-dimensional airflow circulates cold air, which tends to collected 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.
ATTENTION
• Always use a remote controller to adjust the angles of the flaps and louvers. If you attempt to
When stop operation
Upper limit in COOL
0°
25°
Lower limit in COOL
HEAT AND FAN MODE
move it forcibly with hand when it is swinging, the mechanism may be broken.
• Always use a remote controller to adjust the louvers angles. In side the air outlet, a fan is
rotating at a high speed.
When stop operation
5°
Upper limit in HEAT
30°
Lower limit in HEAT
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INTELLIGENT EYE Operation
“INTELLIGENT EYE” is the infrared sensor which detects the human movement.
To start INTELLIGENT EYE operation
1. Press
•“
.
” displayed on the LCD.
To cancel the INTELLIGENT EYE operation
2. Press
•“
again.
” disappears from the LCD.
[EX.]
When somebody in the room
• Normal operation
The air conditioner is in normal
operation while the sensor is
detecting the movement of people.
When nobody in the room
• 20 min. after, start energy
saving operation.
The set temperature is shifted in
±3.6ºF (±2ºC) steps.
Somebody back in the room
• Back to normal operation.
The air conditioner will return to
normal operation when the sensor
detects the movement of people
again.
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INTELLIGENT EYE Operation
To adjust the angle of the INTELLIGENT EYE sensor
• You can adjust the angle of the INTELLIGENT EYE
sensor to increase the detection area.
(Adjustable angle: 15° to right and left of centre)
15° 15°
INTELLIGENT EYE
sensor
• Gently push and slide the sensor to adjust the angle.
• After adjusting the angle, wipe the sensor gently with
a clean cloth, being careful not to scratch the sensor.
Moving the sensor to the left
Moving the sensor to the right
“INTELLIGENT EYE” is useful for Energy Saving
Energy saving operation
• Change the temperature –3.6°F (–2°C) in HEAT / +3.6°F (+2°C) in COOL / +1.8°F (+1°C) in dry mode from set temperature.
• Decrease the airflow rate slightly in FAN mode only.
• If no presence detected in the room for 20 minutes.
NOTE
Notes on “INTELLIGENT EYE”
• Application range is as follows.
)
5m 80°
(
6ft
1
Horizontal angle 100°
(Top View)
50° 50°
16ft
(5m)
Vertical angle 80°
(Side View)
• Sensor may not detect moving objects further than 16ft (5m) 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, fluttering curtains and light reflected off of mirrors as passersby.
• INTELLIGENT EYE operatipon will not go on during powerful operation.
• NIGHT SET MODE Page 19 will not go on during use of INTELLIGENT EYE operation.
CAUTION
• Do not place large objects near the sensor.
Also keep heating units or humidifiers 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.
• When using POWERFUL operation, there are some functions which are not available.
To cancel POWERFUL operation
Press
•“
again.
” disappears from the LCD.
NOTE
Notes on POWERFUL operation
• POWERFUL Operation cannot be used together with 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 the operation stop button causes the settings to be canceled, and the
“
” disappears from the LCD.
• In COOL and HEAT mode
To maximize the cooling (heating) effect, the capacity of outdoor unit must be increased and the airflow rate be fixed to the maximum setting.
The temperature and airflow settings are not variable.
• In DRY mode
The temperature setting is lowered by 4.5°F (2.5°C) and the airflow rate is slightly increased.
• In FAN mode
The airflow rate is fixed to the maximum setting.
• In AUTO mode
To maximize the cooling (heating) effect, the capacity of outdoor unit must be increased and the airflow rate be fixed to the maximum setting.
• POWERFUL Operation will not increase the capacity of the air conditioner if the air conditioner is already in operation with its
maximum capacity demonstrated.
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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 night.
To start OUTDOOR UNIT QUIET operation
Press
•“
.
” is displayed on the LCD.
To cancel OUTDOOR UNIT QUIET operation
Press
•“
again.
” disappears from the LCD.
NOTE
Note on OUTDOOR UNIT QUIET operation
• This function is available in COOL, HEAT, and AUTO modes.
(This is not available in FAN and DRY mode.)
• 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.
• If operation is stopped using the remote controller or the main 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 the frequency and fan speed have been already dropped low
enough.
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HOME LEAVE Operation
HOME LEAVE operation is a function which allows you to record your preferred
temperature and airflow rate settings.
To start HOME LEAVE operation
1. Press
•“
.
” is displayed on the LCD.
• The HOME LEAVE lamp lights up.
ON
OFF
Control panel
To cancel HOME LEAVE operation
2. Press
•“
again.
” disappears from the LCD.
• The HOME LEAVE lamp goes off.
Before using HOME LEAVE operation.
To set the temperature and airflow rate for HOME LEAVE operation
When using HOME LEAVE operation for the first time, please set the temperature and airflow rate for HOME LEAVE operation.
Record your preferred temperature and airflow rate.
Initial setting
Selectable range
Temperature
Airflow rate
Temperature
Airflow rate
COOL
77°F(25°C)
AUTO
64-90°F(18-32°C)
5 step, “
” and “
”
HEAT
77°F(25°C)
AUTO
50-86°F(10-30°C)
5 step, “
” and “
”
1. Press “
”. Make sure “
” is displayed in the remote controller display.
” or “
” as you like.
2. Adjust the set temperature with “
3. Adjust the airflow rate with “FAN” setting button as you like.
Home leave operation will run with these settings the next time you use the unit. To change the recorded information, repeat
steps 1 – 3.
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What’s the HOME LEAVE operation?
Is there a set temperature and airflow rate which is most comfortable, a set temperature and airflow rate which you use the most?
HOME LEAVE operation is a function that allows you to record your favorite set temperature and airflow rate. You can start your
favorite operation mode simply by pressing the HOME LEAVE button on the remote controller. This function is convenient in the
following situations.
Useful in these cases
1. Use as an energy-saving mode.
Set the temperature 3-5°F(2-3°C) higher (COOL) or lower (HEAT) than normal. Setting the fan speed to the lowest
setting allows the unit to be used in energy-saving mode. Also convenient for use while you are out or sleeping.
• Every day before you leave the house...
When you go out, push the “HOME
LEAVE Operation” button, and the air
conditioner will adjust capacity to reach
the preset temperature for HOME LEAVE
Operation.
When you return, you will be welcomed
by a comfortably air conditioned room.
Push the “HOME LEAVE Operation”
button again, and the air conditioner will
adjust capacity to the set temperature for
normal operation.
The unit will maintain the temperature in
the room at a comfortable level while you
sleep.
When you enter the living room in the
morning, the temperature will be just right.
Disengaging HOME LEAVE Operation
will return the temperature to that set for
normal operation. Even the coldest
winters will pose no problem!
• Before bed...
Set the unit to HOME LEAVE Operation
before leaving the living room when
going to bed.
2. Use as a favorite mode.
Once you record the temperature and airflow rate settings you most often use, you can retrieve them by pressing HOME
LEAVE button. You do not have to go through troublesome remote controller operations.
NOTE
• Once the temperature and airflow rate for HOME LEAVE operation are set, those settings will be used whenever HOME LEAVE operation is used in
the future. To change these settings, please refer to the “Before using HOME LEAVE operation” section above.
• HOME LEAVE operation is only available in COOL and HEAT mode. It cannot be used in AUTO, DRY, and FAN mode.
• HOME LEAVE operation runs in accordance with the previous operation mode (COOL or HEAT) before using HOME LEAVE operation.
• HOME LEAVE operation and POWERFUL operation cannot be used at the same time.Last button that was pressed has priority.
• The operation mode cannot be changed while HOME LEAVE operation is being used.
• When operation is shut off during HOME LEAVE operation, using the remote controller or the indoor unit ON/OFF switch, “
” will remain on the
remote controller display.
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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.
1. Press
Page 9
.
“
” is displayed.
“
” blinks.
2. Press
until the time setting reaches the point
you like.
• Every pressing of either button increases or decreases the time setting by 10 minutes. Holding
down either button changes the setting rapidly.
3. Press
again.
• The TIMER lamp lights up.
ON
OFF
Control panel
To cancel OFF TIMER Operation
Press
.
• The TIMER lamp goes off.
NOTE
• 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 (0.9°F(0.5°C) up in COOL, 3.6°F(2.0°C) down in
HEAT) to prevent excessive COOL (HEAT) for your pleasant sleep.
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TIMER Operation
To use ON TIMER operation
• Check that the clock is correct.
If not, set the clock to the present time.
1. Press
Page 9
.
“
” is displayed.
“
” blinks.
2. Press
until the time setting reaches the point
you like.
• Every pressing of either button increases or decreases the time setting by 10 minutes. Holding
down either button changes the setting rapidly.
3. Press
again.
• The TIMER lamp lights up.
ON
OFF
Control panel
To cancel ON TIMER Operation
Press
.
• The TIMER lamp goes off.
To combine ON TIMER and OFF TIMER
• A sample setting for combining the two timers is shown below.
(Example)
Present time: 23:00 (The unit operating)
OFF TIMER at 0:00
Combined
ON TIMER at 14:00
ATTENTION
In the following cases, set the timer again.
• After a breaker has turned OFF.
• After a power failure.
• After replacing batteries in the remote controller.
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Care and Cleaning
CAUTION
Before cleaning, be sure to stop the operation and turn the breaker OFF.
Units
Indoor unit, Outdoor unit and Remote controller
Wipe them with dry soft cloth.
Front panel
1. Open the front panel.
• Hold the panel by the tabs on the two sides and lift
it unitl it stops with a click.
2. Remove the front panel.
• Supporting the front panel with one hand, release the lock by sliding down the knob with
the other hand.
• To remove the front panel, pull it toward yourself with both hands.
3. Clean the front panel.
• Wipe it with a soft cloth soaked in water.
• Only neutral detergent may be used.
• In case of washing the panel with water, wipe it with dry soft cloth, dry it up in the shade after washing.
4. Attach the front panel.
• Set the 3 keys of the front panel into the slots and push them in all the way.
• Close the front panel slowly and push the panel at the 3 points.
(1 on each side and 1 in the middle.)
• Check to see if the rotating axis in the upper center section is moving.
Fit the key
into the slot.
CAUTION
• Do not touch the metal parts of the indoor unit. If you touch those parts, this may cause an injury.
• When removing or attaching the front panel, use a robust and stable stool and watch your steps carefully.
• When removing or attaching the front panel, support the panel securely with hand to prevent it from falling.
• For cleaning, do not use hot water above 104°F(40°C), benzine, gasoline, thinner, nor other volatile oils, polishing compound, scrubbing brushes,
nor other hand stuff.
• After cleaning, make sure that the front panel is securely fixed.
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Care and Cleaning
Filters
1. Open the front panel.
Page 21
2. Pull out the air filters.
• Push a little upwards the tab at the
center of each air filter, then pull it down.
3. Take off the Air-purifying filter
with photocatalytic deodorizing
function.
Air-purifying filter
with photocatalytic
deodorizing function
Air filter
• Hold the recessed parts of the frame and unhook the four claws.
4. Clean or replace each filter.
See figure.
5. Set the air filter and the Air-purifying filter with photocatalytic
deodorizing function as they were and close the front panel.
• Insert claws of the filters into slots of the front panel.
Close the front panel slowly and push the panel at the 3 points.
(1 on each side and 1 in the middle.)
Push
CAUTION
• Do not touch the aluminum fins by bare hand at the time of dismounting or mounting the filter.
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Air Filter
Wash the air filters with water or clean them with vacuum cleaner.
• If the dust does not come off easily, wash them with neutral detergent thinned with lukewarm water, then dry them up in the
shade.
• It is recommended to clean the air filters every 2 weeks.
Air-purifying filter with photocatalytic deodorizing function
The Air-purifying filter with photocatalytic deodorizing function can be renewed by washing it with water once every 6 months.
We recommend replacing it once every 3 years.
[ Maintenance ]
1. Vacuum dusts, and soak in warm water or water for about 10 to 15
minutes if dirt is heavy.
2. Do not remove filter from frame when washing with water.
3. After washing, shake off remaining water and dry in the shade.
4. Since the material is made out of paper, do not wring out the filter
when removing water from it.
[ Replacement ]
1. Remove the tabs on the filter frame and replace with a new filter.
• Dispose of the old filter as flammable waste.
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Care and Cleaning
NOTE
• Operation with dirty filters:
1) cannot deodorize the air.
2) cannot clean the air.
3) results in poor HEAT or COOL.
4) may cause odour.
• To order Air-purifying filter with photocatalytic deodorizing function contact to the service shop there you bought the air conditioner.
• Dispose of old filters as flammable waste.
Item
Part No.
Air-purifying filter with photocatalytic deodorizing function (with frame) 1 set
KAF918A43
Air-purifying filter with photocatalytic deodorizing function (without frame) 1 set
KAF918A44
ATENTION
• Do not throw away the filter frame. Reuse the filter frame when replacing the Air-purifying filter with photocatalytic deodorizing function.
CHECK
Check that the base, stand and other fittings 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
1. Operate the “FAN only” for several hours on a fine day to dry out
the inside.
• Press
• Press
and select “
” operation.
and start operation.
2. After operation stops, turn off the breaker for the room air
conditioner.
3. Clean the air filters and set them again.
4. Take out batteries from the remote controller.
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Trouble Shooting
These cases are not troubles.
The following cases are not air conditioner troubles but have some reasons. You may just continue using it.
Case
Operation does not start soon.
• When ON/OFF button was pressed soon after
operation was stopped.
Explanation
• This is to protect the air conditioner.
You should wait for about 3 minutes.
• When the mode was reselected.
Hot air does not flow out soon after the
start of heating operation.
The heating operation stops suddenly
and a flowing sound is heard.
• 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
temperature.)
• The system is taking away the frost on the outdoor unit.
You should wait for about 4 to 12 minutes.
In HEAT mode
• The frost on the outdoor unit melts into water or steam when the air conditioner is in
The outdoor unit emits water or steam.
defrost operation.
In COOL or DRY mode
• Moisture in the air condenses into water on the cool surface of outdoor unit piping and
drips.
Mist comes out of the indoor unit.
The indoor unit gives out odour.
The outdoor fan rotates while the air
conditioner is not in operation.
This happens when the air in the room is cooled into mist by the cold airflow
during cooling operation.
This is because the air in the room is cooled by the heat exchanger and
becomes mist during defrost operation.
This happens when smells of the room, furniture, or cigarettes are absorbed
into the unit and discharged with the airflow.
(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.)
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 operation stopped suddenly.
(OPERATION lamp is on.)
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.
• For system protection, the air conditioner may stop operating on a sudden large voltage
fluctuation.
It automatically resumes operation in about 3 minutes.
• The batteries are dying and the remote controller is malfunctioning. Replace all the
batteries with new size batteries, AAA.LR03 (alkaline). For details, refer to “To set the
batteries” of this manual. Page 8
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Trouble Shooting
Check again.
Please check again before calling a repair person.
Case
Check
The air conditioner does not operate.
(OPERATION lamp is off.)
• Hasn’t a breaker turned OFF or a fuse blown?
• Isn’t it a power failure?
• Are batteries set in the remote controller?
• Is the timer setting correct?
Cooling (Heating) effect is poor.
• Are the air filters clean?
• Is there anything to block 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 airflow rate and the air direction set appropriately?
Operation stops suddenly.
(OPERATION lamp flashes.)
An abnormal functioning happens during
operation.
The flap does not start swinging
immediately.
• Are the air filters clean?
• Is there anything to block the air inlet or the outlet of the indoor and the outdoor units?
Clean the air filters or take all obstacles away and turn the breaker OFF. Then turn it ON
again and try operating the air conditioner with the remote controller. If the lamp still
flashes, call the service shop where you bought the air conditioner.
• The air conditioner may malfunction with lightning or radio waves. Turn the breaker OFF,
turn it ON again and try operating the air conditioner with the remote controller.
• The air conditioner is adjusting the flap position. The flap will start moving soon.
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Call the service shop immediately.
WARNING
When an abnormality (such as a burning smell) occurs, stop operation and turn the breaker OFF.
Continued operation in an abnormal condition may result in troubles, electric shocks or fire.
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 fire.
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 safety breaker, a fuse, or the earth leakage breaker
cuts off the operation frequently.
Turn the breaker OFF and call the service shop.
A switch or a button often fails to work properly.
There is a burning smell.
Water leaks from the indoor unit.
After a power failure
The air conditioner automatically resumes operation in about 3 minutes. You should just wait for a while.
Lightning
If lightning may strike the neighbouring area, stop operation and turn the breaker OFF for system protection.
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 born by the user.
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Fault diagnosis.
FAULT DIAGNOSIS BY REMOTE CONTROLLER
In the ARC452A series, the temperature display sections on the main unit indicate corresponding codes.
1. When the TIMER CANCEL button is held down for 5 seconds, a “
” indication flashes on the temperature display section.
TIMER CANCEL button
It cancels the timer setting.
2. Press the TIMER CANCEL button repeatedly until a continuous beep is produced.
• The code indication changes as shown below, and notifies with a long beep.
CODE
MEANING
00
NORMAL
U0
REFRIGERANT SHORTAGE
SYSTEM
U2
DROP VOLTAGE OR MAIN CIRCUIT OVERVOLTAGE
U4
FAILURE OF TRANSMISSION (BETWEEN INDOOR UNIT AND OUTDOOR UNIT)
A1
INDOOR PCB DEFECTIVENESS
A5
HIGH PRESSURE CONTROL OR FREEZE-UP PROTECTOR
INDOOR
A6
FAN MOTOR FAULT
UNIT
C4
FAULTY HEAT EXCHANGER TEMPERATURE SENSOR
C9
FAULTY SUCTION AIR TEMPERATURE SENSOR
EA
COOLING-HEATING SWITCHING ERROR
E5
OL STARTED
E6
FAULTY COMPRESSOR START UP
E7
DC FAN MOTOR FAULT
E8
OPERATION HALT DUE TO DETECTION OF INPUT OVER CURRENT
F3
HIGH TEMPERATURE DISCHARGE PIPE CONTROL
F6
HIGH PRESSURE CONTROL (IN COOLING)
OUTDOOR
H6
OPERATION HALT DUE TO FAULTY POSITION DETECTION SENSOR
UNIT
H8
CT ABNORMALITY
H9
FAULTY SUCTION AIR TEMPERATURE SENSOR
J3
FAULTY DISCHARGE PIPE TEMPERATURE SENSOR
J6
FAULTY HEAT EXCHANGER TEMPERATURE SENSOR
L4
HIGH TEMPERATURE AT INVERTER CIRCUIT HEATSINK
L5
OUTPUT OVERCURRENT
P4
FAULTY INVERTER CIRCUIT HEATSINK TEMPERATURE SENSOR
NOTE
1. A short beep and two consecutive beeps indicate non-corresponding codes.
2. To cancel the code display, hold the TIMER CANCEL button down for 5 seconds. The code display also cancel itself if the button is
not pressed for 1 minute.
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Two-dimensional bar code is a code
for manufacturing.
3P232717-1C M08B052A (0901) HT
00_CV_3P232717-1C.indd 2
12/10/2008 9:10:15 AM