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FVXG25K2V1B
FVXG35K2V1B
FVXG50K2V1B
00_CV_3P276869-1A.indd 1
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OPERATION MANUAL
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DAIKIN ROOM AIR CONDITIONER
8/8/2012 9:45:43 PM
Features
For your comfort and energy
saving
RADIANT
The HEAT operation, to which the RADIANT operation mode is added,
provides a comfortable environment with quiet and currentless heating
operation. The surface of the radiant panel is heated up, and the radiated heat warms the surrounding air. The warm air that slowly circulates gently warms the entire room. ►Page 12
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. ►Page 21
Other functions
ECONO
OUTDOOR UNIT QUIET
This function enables efficient operation
by limiting the maximum power consumption. It is useful when using the air
conditioner and other electrical devices
simultaneously. ►Page 18
OUTDOOR UNIT QUIET operation
lowers the noise level of the outdoor
unit. This function is useful when you
need to consideration for your neighbourhood. ►Page 17
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Contents
„ Read before Operation
Safety Precautions......................................... 3
Name of Parts ................................................ 5
Preparation before Operation ........................ 9
„ Operation
AUTO · DRY · COOL · HEAT · FAN
Operation ........................................... 11
RADIANT Operation .......................... 12
Temperature Setting .......................... 13
Adjusting the Airflow Direction
and Rate ............................................ 14
POWERFUL Operation ...................... 16
OUTDOOR UNIT QUIET
Operation ........................................... 17
ECONO Operation ............................. 18
OFF TIMER Operation ....................... 19
ON TIMER Operation ........................ 20
WEEKLY TIMER Operation ............... 21
„ Multi Connection
Note for Multi System .................................. 27
„ Care
Care and Cleaning ....................................... 29
„ Troubleshooting
Troubleshooting ........................................... 34
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Safety Precautions
• Keep this manual where the operator can easily find it.
• Read the precautions in this manual carefully before operating the unit.
• The precautions described herein are classified as WARNING and CAUTION. They both contain important information regarding safety. Be sure to observe all precautions without fail.
WARNING
Failure to follow these instructions properly may result in
personal injury or loss of life.
Never attempt.
CAUTION
Failure to observe these instructions properly may result in
property damage or personal injury, which may be serious
depending on the circumstances.
Never wet the air conditioner nor the remote controller with
water.
Be sure to follow the instructions.
Be sure to establish an earth connection.
Never touch the air conditioner nor the remote controller with
wet hands.
• 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 fire, explosion or injury, do not operate the unit when harmful, among which flammable or corrosive
gases, 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 fingers, etc., in the air inlet or outlet. Product malfunctioning, product or
injury damage 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 fire hazards.
• Do not use flammable spray near the air conditioner, or otherwise fire may result.
• Beware of fire 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 longer use the air conditioner until a qualified service person confirms 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 fire hazards. Please contact your local dealer or qualified personnel for installation and maintenance work.
• 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 fire hazards.
• Be sure to install an earth leakage breaker. Failure to install the earth leakage breaker may result in electric shocks
or fire.
• If the power supply cord is damaged, ask the manufacturer or a qualified electrician for repairs to prevent accidents.
Continued use of the cord may cause electric shock or fire.
• 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 airflow from the unit as this may cause adverse effects.
• Do not place appliances that produce naked flames in places exposed to the airflow from the unit as this may impair
combustion of the burner.
• Do not block air inlets nor outlets. Impaired airflow may result in insufficient performance or trouble.
• 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.
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CAUTION
• 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 filter 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 fins of the indoor or outdoor units.
• The appliance is not intended for use by unattended young children or infirm 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.
• Do not give impact to the indoor and outdoor units, or otherwise product damage may result.
• Do not place flammable 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 fire.
• 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 the breaker off or remove the power cord. Otherwise, an electric
shock and injury may result.
• Only connect the air conditioner to the specified power supply circuit. Power supplies other than the one specified
may result in electric shocks, overheating and fires.
• 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 fire when making contact with electrical parts.
• Do not place objects around the indoor unit.
Doing so may have an adverse influence 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.
• During the RADIANT operation, the surface temperature of the panel will be about 55°C at maximum.
Even after the RADIANT operation is finished, the surface temperature of the panel of the air conditioner stays hot for
a while. Do not touch the air conditioner until the surface temperature of the panel decreases.
Be careful that children do not touch the surface of the panel.
• To avoid electric shocks, do not operate with wet hands.
• Do not wash the air conditioner with water, as this may result in electric shocks or fire.
• Do not place water containers (vases etc.) above the unit, as this may result in electric shocks or fire hazards.
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 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.
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 specialised knowledge and skills. Please consult the dealer if relocation is necessary
for moving or remodeling.
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Name of Parts
Indoor Unit
Louvers (vertical blades)
• The louvers are inside of the air outlet. ►Page 14
Air outlet
Flap (horizontal blade)
►Page 14
Radiant panel
Front panel
Air inlet
Room temperature sensor
• It detects the air temperature around the unit.
Display
Signal receiver and Indoor
unit ON/OFF switch
Signal receiver
• It receives signals from the remote controller.
• When the unit receives a signal, you will hear
a beep sound.
Case
Operation start
Setting changed
Operation stop
TIMER lamp (yellow)
Sound type
beep-beep
beep
long beep
OPERATION lamp
(green)
Indoor unit ON/OFF switch
• Press this switch once to start operation.
Press once again to stop it.
• The operation mode refer to the following table.
Mode
AUTO
Temperature setting
25°C
RADIANT lamp (red)
►Page 12
Airflow rate
AUTO
• This switch is useful when the remote controller is missing.
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„ Open the front panel
Front panel stopper
Strings
CAUTION
• The surface of the radiant panel becomes very
hot during RADIANT operation. Do not touch
the panel of the main unit directly.
After the operation is complete, do not remove
or care and clean the panel until the surface
temperature of the panel decreases.
Air filter (upper)
Air filter (lower)
Titanium apatite
photocatalytic
air-purifying filter
• It is inside of air filter (lower).
Outdoor Unit
• Appearance of the outdoor unit may differ from some models.
Air inlet
(back and side)
Outdoor temperature
sensor (back)
Drain hose
Earth terminal
• It is inside of this cover.
Air outlet
Model name plate
Refrigerant piping and
inter-unit wiring
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Name of Parts
Remote Controller
Signal transmitter
Receiver
Display (LCD)
• It displays the current settings.
(In this illustration, each section is
shown with its displays on for the
purpose of explanation.)
• 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 7m.
TEMPERATURE
adjustment buttons
• It changes the temperature setting.
►Page 13
ON/OFF button
• Press this button once to start
operation.
Press once again to stop it. ►Page 11
FAN setting button
• It selects the airflow rate setting.
►Page 15
RADIANT switching button
Front cover
• RADIANT operation. ►Page 12
• Open the front cover. ►Page 8
Model
ARC466A2
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„ Open the front cover
MODE selector button
• It selects the operation mode.
(AUTO/DRY/COOL/HEAT/
FAN) ►Page 11
ECONO button
• ECONO operation. ►Page 18
SWING button
• Adjusting the airflow direction.
►Page 14
QUIET button
• OUTDOOR UNIT QUIET
operation. ►Page 17
Lamp brightness
setting button ►Page 9
POWERFUL button
• POWERFUL operation.
►Page 16
: WEEKLY button
: PROGRAM button
OFF TIMER button
►Page 19
: COPY button
: BACK button
TIMER CANCEL
button
: NEXT button
• WEEKLY TIMER operation.
►Page 21
• It cancels the timer setting.
►Page 19, 20
• It cannot be used for the
WEEKLY TIMER operation.
ON TIMER button
►Page 20
SELECT button
• It changes the ON/OFF
TIMER and WEEKLY TIMER
settings. ►Page 19, 20, 21
CLOCK button
►Page 10
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Preparation before Operation
„ To set the batteries
2
3
Position + and
– correctly!
1
1. Slide the front cover to take it off.
2. Set two dry batteries AAA.LR03 (alkaline).
3. Set the front cover as before.
„ To fix the remote controller holder on the wall
Remote controller
1. Choose a place from where the signals
reach the unit.
2. Fix the holder to a wall, a pillar, or similar
location with the screws procured locally.
Screws
Remote
controller holder
3. Place the remote controller in the remote
controller holder.
„ To set the luminance of the display
• The luminance of the indoor unit display can be set.
Press
Hi
.
Low
Off
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 approximately 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 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.
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„ Turn the breaker on
• After the power is turned on, the flap of the indoor unit opens and closes once to set the
reference position.
„ To set the clock
1. Press
.
•“
•“
” is displayed on the LCD.
” and “ ” blink.
2. Press
to set the current day of the week.
3. Press
.
•“
4. Press
• Holding down
5. Press
” blinks.
to set the clock to the present time.
or
rapidly increases or decreases the time display.
.
• Point the remote controller at the indoor unit when pressing the buttons.
• “ ” blinks.
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.
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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 an operation mode.
• Each pressing of the button advances the mode setting in sequence.
AUTO
DRY
2. Press
COOL
HEAT
FAN
.
•“
” is displayed on the LCD.
• The OPERATION lamp lights green.
Display
„ To stop operation
Press
again.
•“
” disappears from the LCD.
• The OPERATION lamp goes off.
NOTE
MODE
HEAT
COOL
DRY
AUTO
FAN
Notes on each operation mode
• 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.
• 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.
• When the outdoor temperature is lower than 10°C, do not use COOL operation. If the operation is used when the outdoor
temperature is lower than 10°C, the protective function of the main unit works and this disables the 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.
• 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 room temperature to user-setting level.
• This mode is valid for fan only.
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English
RADIANT Operation
The RADIANT operation provides a comfortable environment with quiet and
currentless heating operation in addition to the HEAT operation mode. The
RADIANT operation has 2 operation modes.
„ To start RADIANT operation
1. Press
and select an HEAT operation.
• Each pressing of the button advances the mode setting in sequence.
AUTO
•“
COOL
HEAT
FAN
” is displayed on the LCD.
2. Press
•
•
•
•
DRY
and select a RADIANT operation.
“
” is displayed on the LCD.
The RADIANT lamp lights red.
This button can be used only in the HEAT operation mode.
When the RADIANT operation starts, the temperature of the radiant panel increases.
HEAT
RADIANT1
RADIANT2
Display
RADIANT operation with HEAT
RADIANT operation
Auto fan speed
„ RADIANT1
• Use this operation when the difference
between the set temperature and indoor
temperature is large, or to warm up the room
quickly.
Gentle breeze
„ RADIANT2
• Use this operation to prioritize quiet and
currentless heating operation, or when the
noise from RADIANT1 operation bothers you.
The gentle breeze operation starts from the
beginning.
CAUTION
• During the RADIANT operation, the surface temperature of the panel will be about 55°C at maximum.
Even after the RADIANT operation is finished, the surface temperature of the panel of the air conditioner stays hot for a while. Do not touch the
air conditioner until the surface temperature of the panel decreases.
Be careful that children do not touch the surface of the panel.
NOTE
„ Notes on RADIANT operation
• If RADIANT2 operation does not warm up the room, use HEAT or RADIANT1 operation.
• RADIANT1 can be used with POWERFUL operation. RADIANT2 cannot be used with the POWERFUL operation.
• This operation may not warm up the room adequately depending on conditions such as an extremely low outside temperature and lack of
adequate performance.
• The RADIANT operation uses the auto fan speed, so the airflow rate cannot be changed.
• When the indoor units are connected using a multi system, please refer to “Selecting the operation mode” in note for multi system. ►Page 27
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Temperature Setting
„ To change the temperature setting
Press
.
• The displayed items on the LCD will change whenever either one of the buttons is pressed.
COOL operation
18-32°C
HEAT or RADIANT
operation
10-30°C
AUTO operation
Press
to raise the temperature and press
temperature.
DRY or FAN operation
18-30°C
to lower the
The temperature setting is not variable.
„ 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 filters cause inefficient operation and waste energy. Clean them once in about every 2 weeks.
„ Notes on the operating conditions
• The outdoor unit consumes some power to have its electric components work even while it is not operating.
Connecting outdoor unit RXG25/35: 1-15W
Other outdoor units: 15-20W
The outdoor unit consumes 40 to 55W of power at the time of compressor preheating.
• 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
Outdoor temperature : <2/3/4/5MXS> 10-46°C
<RXG> 10-46°C
COOL
Indoor temperature : 18-32°C
Indoor humidity : 80% max.
Outdoor temperature : <2MXS> –10-24°C
HEAT or
<3/4/5MXS> –15-24°C
RADIANT
<RXG> –15-24°C
Indoor temperature : 10-30°C
Outdoor temperature : <2/3/4/5MXS> 10-46°C
<RXG> 10-46°C
DRY
Indoor temperature : 18-32°C
Indoor humidity : 80% max.
If operation is continued out of this range
• 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.
• A safety device may work to stop the operation.
• 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.
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You can adjust the airflow direction to increase your comfort.
English
Adjusting the Airflow Direction
and Rate
„ To start auto swing
Upper and lower airflow direction
Press
.
•“
” is displayed on the LCD.
• The flap (horizontal blade) will begin to swing.
„ To set the flap at desired position
• This function is effective while flap is in auto swing mode.
Press
when the flap has reached the
desired position.
•“
” disappears from the LCD.
„ To adjust the louvers at desired position
Hold the knob and move the louvers.
• You will find a knob on the left-side and the right-side blades.
• When the unit is installed in the corner of a room, the direction
of the louvers (vertical blades) should be facing away from the
wall.
If they face the wall, the wall will block off the wind, causing the
cooling (or heating) efficiency to drop.
• If the flap is in the way, press
on the remote controller to
move the flap out of the way and then adjust the louvers.
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Adjusting the Airflow Direction
and Rate
„ To adjust the airflow rate setting
Press
.
• Each pressing of
Auto
advances the airflow rate setting in sequence.
Indoor unit quiet
High
Low
Middle high
Middle low
Middle
• When the airflow is set to “
”, indoor unit quiet operation will start and the noise from the
unit will become quieter.
• In indoor unit quiet operation, the airflow rate is set to a weak level.
• In DRY or RADIANT operation, the airflow rate setting is not variable.
NOTE
„ Note on the angles of the flap
• The flap swinging range is the same by all operation. (See the figure.)
Upper limit
70°
Lower limit
45°
Stop operation
„ Note on airflow rate setting
• At smaller airflow rates, the cooling (heating) effect is also smaller.
CAUTION
• Always use a remote controller to adjust the angles of the flap. If you attempt to move it forcibly with hand when it is swinging, the mechanism
may be broken.
• Be careful when adjusting the louvers.
Inside the air outlet, a fan is rotating at a high speed.
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English
POWERFUL Operation
POWERFUL operation quickly maximises 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
„ Back to normal operation
• POWERFUL operation will
work for 20 minutes.
NOTE
„ Notes on POWERFUL operation
• When using POWERFUL operation, there are some functions which are not available.
• POWERFUL operation cannot be used together with RADIANT2, ECONO 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 the “
” 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, HEAT and RADIANT1 operation
To maximise the cooling (heating) effect, the capacity of outdoor unit is increased and the airflow rate is fixed to the maximum setting.
The temperature and airflow settings are not variable.
• In DRY operation
The temperature setting is lowered by 2.5°C and the airflow rate is slightly increased.
• In FAN operation
The airflow rate is fixed to the maximum setting.
• In AUTO operation
To maximise the cooling (heating) effect, the capacity of outdoor unit is increased and the airflow rate is fixed to the maximum setting.
• When using priority room setting
See note for multi system. ►Page 27
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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 the 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.
[Example]
Using the OUTDOOR UNIT QUIET operation during the night.
• The noise level of the outdoor unit will be lower.
This is convenient when you need to consideration for your neighbourhood.
NOTE
„ Notes on OUTDOOR UNIT QUIET operation
• If using a multi system, OUTDOOR UNIT QUIET operation will work only when the this function is set on all operated indoor units. However,
if using priority room setting, refer to note for multi system. ►Page 27
• This function is available in COOL, HEAT, and AUTO operation.
This is not available in RADIANT, 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 the operation is stopped 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.
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ECONO operation is a function which enables efficient operation by limiting the
maximum power consumption value.
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.
English
ECONO Operation
„ To start ECONO operation
Press
•“
during operation.
” is displayed on the LCD.
„ To cancel ECONO operation
Press
•“
again.
” disappears from the LCD.
[Example]
Normal operation
ECONO operation
• In case the air conditioner and other appliances which require high power consumption
are used at same time, a circuit breaker may
trip if the air conditioner operate with its maximum capacity.
Running current and
power consumption
Normal
operation
• 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.
• This diagram is a representation for illustrative
purposes only.
Maximum during
The maximum running current and power
normal operation
consumption of the air conditioner in ECONO
operation vary with the connecting outdoor
Maximum during
unit.
ECONO operation
ECONO
operation
Time
NOTE
From start up until set temperature is reached
„ Notes on ECONO operation
• ECONO operation can only be set when the unit is running. Pressing
causes the settings to be canceled, and the “
” disappears
from the LCD.
• ECONO operation is a function which enables efficient operation by limiting the power consumption of the outdoor unit (operating frequency).
• ECONO operation functions in AUTO, COOL, DRY, and HEAT operation.
This is not available in RADIANT and FAN operation.
• POWERFUL operation 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.
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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
1. Press
.
•“
•“
•“
” is displayed on the LCD.
” blinks.
” and day of the week disappear from the LCD.
2. Press
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.
3. Press
again.
•“
” and setting time are displayed on the LCD.
• The OPERATION lamp blinks and the TIMER lamp lights yellow. ►Page 5
Display
„ 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
approximately 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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English
ON TIMER Operation
„ To use ON TIMER operation
• Check that the clock is correct.
If not, set the clock to the present time. ►Page 10
1. Press
.
•“
•“
•“
” is displayed on the LCD.
” blinks.
” and day of the week disappear from the LCD.
2. Press
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.
3. Press
again.
•“
” and setting time are displayed on the LCD.
• The OPERATION lamp blinks and the TIMER lamp lights yellow. ►Page 5
Display
„ 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 0:00
ON TIMER at 14:00
Combined
NOTE
„ 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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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.
„ Using in these cases of WEEKLY TIMER
[Example]
[Monday]
The same timer settings are made for the week from Monday through Friday while different timer settings are
made for the weekend.
Make timer settings up to programs 1-4. ►Page 22
Program 1
Program 2
Program 3
ON
OFF
ON
Program 4
OFF
25°C
6:00
27°C
8:30
ON
[Tuesday]
to
[Friday]
17:30
OFF
22:00
ON
OFF
Use the copy mode to make settings for Tuesday to Friday, because these settings are the same as
those for Monday. ►Page 24
Program 1
Program 2
Program 3
ON
OFF
ON
Program 4
OFF
25°C
27°C
6:00
[Saturday]
[Sunday]
8:30
17:30
22:00
No timer settings
Make timer settings up to programs 1-4. ►Page 22
Program 1
Program 2
Program 3
Program 4
ON
OFF
OFF
ON
25°C
8:00
ON
27°C
10:00
OFF
27°C
19:00
OFF
21:00
ON
• 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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English
„ To use WEEKLY TIMER operation
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
Program 1
Program 2
ON
OFF
[Monday]
Program 3
25°C
6:00
Program 4
ON
OFF
27°C
8:30
17:30
22:00
Setting Displays
Day and number
1. Press
ON/OFF
Time
Temperature
.
• 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.
2. Press
to select the desired day of the week
and reservation number.
• Pressing
3. Press
changes the reservation number and the day of the week.
.
• The day of the week and reservation number will be set.
•“
” and “
” blink.
4. Press
• Pressing
to select the desired mode.
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
5. Press
.
.
• The ON/OFF TIMER mode will be set.
•“
” and the time blink.
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WEEKLY TIMER Operation
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.
7. Press
.
• The time will be set.
•“
” and the temperature blink.
8. Press
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.
HEAT or AUTO: The unit operates at 30°C even if it is set at 31 to 32°C.
• To return to the time setting, press
.
• The set temperature is only displayed when the mode setting is on.
9. Press
.
• Be sure to direct the remote controller toward the indoor unit and check for a receiving
tone and flashing the OPERATION lamp.
• The temperature is 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 TIMER lamp lights yellow. ►Page 5
Display
10. 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 24
NOTE
„ Notes on WEEKLY TIMER operation
• Do not forget to set the clock on the remote controller first. ►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 the breaker off, power failure, and other similar events will render operation of the indoor unit’s internal clock inaccurate. Reset the
clock. ►Page 10
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English
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.
Program 1
Program 2 Program 3
ON
[Monday]
COPY
OFF
25°C
6:00
17:30
22:00
Program 2 Program 3
ON
[Tuesday]
to
[Friday]
OFF
27°C
8:30
Program 1
Program 4
ON
OFF
ON
8:30
17:30
25°C
6:00
Program 4
OFF
27°C
22:00
Setting Displays
Confirmation
Copy
1. Press
Paste
Normal
.
2. Press
to confirm the day of the week to be
copied.
3. Press
.
• The whole reservation of the selected day of the week will be copied.
4. Press
to select the destination day of the
week.
5. Press
.
• Be sure to direct the remote controller toward the indoor unit and check for a receiving
tone and flashing the OPERATION 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.
6. Press
•“
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 22
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WEEKLY TIMER Operation
„ Confirming a reservation
• The reservation can be confirmed.
Setting Displays
Normal
1. Press
Confirmation
.
• The day of the week and the reservation number of the current day will be displayed.
2. Press
to select the day of the week and the
reservation number to be confirmed.
• Pressing
displays the reservation details.
• To change the confirmed reserved settings, select the reservation number and press
.
The mode is switched to setting mode. Go to setting mode step 2. ►Page 22
3. Press
to exit confirming mode.
„ To deactivate WEEKLY TIMER operation
Press
LCD.
while “
” is displayed on the
• The “
” will disappear from the LCD.
• The TIMER lamp goes off.
• To reactivate the WEEKLY TIMER operation, press
• If a reservation deactivated with
will be used.
again.
is activated once again, the last reservation mode
CAUTION
• If not all the reservation settings are reflected, deactivate the WEEKLY TIMER operation once. Then press
WEEKLY TIMER operation.
again to reactivate the
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English
„ To delete reservations
The individual reservation
1. Press
.
• The day of the week and the reservation number will be displayed.
2. Press
to select the day of the week and the
reservation number to be deleted.
3. Press
•“
.
” and “
4. Press
• Pressing
” or “
” blink.
and select “ blank ”.
changes ON/OFF TIMER mode.
Pressing
alternates the following items appearing on the LCD in rotational sequence.
• The reservation will be no setting with selecting “blank”.
ON TIMER
OFF TIMER
5. Press
blank
.
• The selected reservation will be deleted.
6. Press
.
• 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 conf irming or setting reservations.
1. Press
to select the day of the week to be
deleted.
2. Hold
for 5 seconds.
• The reservation of the selected day of the week will be deleted.
All reservations
Hold
for 5 seconds while 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
With the priority room setting present but
inactive or not present.
When more than one indoor unit is operating, priority is given to
the first unit that was turned on.
In this case, set the units that are turned on later to the same
operation mode as the first unit.
Otherwise, they will enter the standby state, and the OPERATION
lamp will flash: this does not indicate malfunction.
A room
B room
C room
D room
Outdoor unit
NOTE
„ Notes on operation mode for multi system
• COOL, DRY and FAN operation may be used at the same time.
• HEAT and RADIANT operation may be used at the same time.
• AUTO operation automatically selects COOL operation or HEAT operation based on the room temperature.
Therefore, AUTO operation is available when selecting the same operation mode as that of the room with the first unit to be turned on.
CAUTION
• Normally, the operation mode in the room where the unit is first run is given priority, but the following situations are exceptions, so please keep
this in mind.
If the operation mode of the first room is FAN operation, then using HEAT and RADIANT operation in any room after this will give priority to HEAT
and RADIANT operation. In this situation, the air conditioner running in FAN operation will go on standby, and the OPERATION lamp will flash.
When the RADIANT operation starts when the FAN operation is used in another room, the FAN operation is switched to the HEAT operation.
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 efficiency of the unit.
„ OUTDOOR UNIT QUIET operation
Refer to OUTDOOR UNIT QUIET operation. ►Page 17
With the priority room setting present but inactive or not present.
When using the OUTDOOR UNIT QUIET operation feature with the multi system, set all indoor units to OUTDOOR UNIT
QUIET 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.
With the priority room setting active.
Refer to priority room setting on the next page.
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English
„ COOL/HEAT mode lock
The COOL/HEAT mode lock requires initial programming during installation. Please consult your authorised 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.
During the COOL mode, the DRY operation can also be used. During the HEAT mode, the RADIANT operation can also be
used.
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 authorised 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
rooms.
[Example]
• 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
COOL or DRY or FAN
HEAT and RADIANT
AUTO
Status of room B, C and D when the unit in room A is in COOL operation
Current operation mode maintained
The unit enters standby mode. Operation resumes when the room A unit stops operating.
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
[Example]
• 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) efficiency of the units in room B, C and D
may be slightly reduced.
Priority when using OUTDOOR UNIT QUIET operation
[Example]
• 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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Care and Cleaning
„ Quick reference
How to open / close the front panel
Front panel stopper
• Slide the front panel stoppers on both sides upward, and open the front panel.
• Close the front panel and lock it using the front panel stoppers.
Open
Cleaning parts
Lock
Front panel
• Wipe it with soft cloth soak in water.
If bothered by dirt
Refer to ►Page 32
Air filter
CAUTION
• Be sure to remove the air filters (upper)
first, and then the air filters (lower).
• Vacuum dust or wash the filter.
Once every 2 weeks
Refer to ►Page 30
Titanium apatite photocatalytic air-purifying filter
• Vacuum dust or replace the filter.
[Cleaning]
[Replacement]
Once every 6 months
Once every 3 years
Refer to ►Page 31
Refer to ►Page 31
Indoor unit and
remote controller
• Wipe them with soft cloth.
If bothered by dirt
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
• Wait for a while before caring and cleaning the unit after RADIANT operation.
The surface temperature of the radiant panel may be high immediately after the operation.
• Before cleaning, be sure to stop the operation and turn the breaker off.
• Do not touch the aluminium fins of the indoor unit. If you touch those parts, this may cause an injury.
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English
„ Air filter
1. Pull out the air filters.
• Open the front panel.
• Remove both air filters (upper).
• Remove both air filters (lower).
Air filter (upper)
If the dust does not come off easily
• Wash the air filters with neutral detergent thinned with
lukewarm water, then dry them up in the shade.
• Be sure to remove the titanium apatite photocatalytic
air-purifying filter. Refer to titanium apatite photocatalytic air-purifying filter on the next page.
1) Pull down
3. Set the filters as they were
Air filter (lower)
and close the front panel.
• Close the front panel and lock it by sliding the front
panel stoppers on both sides downward.
Front panel stopper
2) Pull up
2. Wash the air filters with
Lock
water or clean them with
vacuum cleaner.
• It is recommended to clean the air filters every
2 weeks.
CAUTION
• Do not touch the aluminium fins by bare hand at the time of dismounting or mounting the filter.
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Care and Cleaning
„ Titanium apatite photocatalytic air-purifying filter
1. Take off the titanium apatite
photocatalytic air-purifying
filter.
[Replacement]
Remove the tabs on the filter
frame and replace with a new
filter.
• Open the front panel and pull out the air filters.
• Hold the recessed parts of the frame and unhook the
4 claws.
Claw
• Do not throw away the filter frame. Reuse the filter
frame when replacing the titanium apatite photocatalytic air-purifying filter.
• Dispose of the old filter as non-flammable waste.
3. Set the filters as they were
and close the front panel.
2. Clean or replace the titanium
• Close the front panel and lock it by sliding the front
panel stoppers on both sides downward.
apatite photocatalytic airpurifying filter.
[Maintenance]
2-1 Vacuum dusts, and soak in lukewarm
water or water for about 10 to 15 minutes if dirt is heavy.
• Do not remove the filter from frame when washing
with water.
2-2 After washing, shake off remaining
water and dry in the shade.
• Since the material is made out of polyester, do not
wring out the filter when removing water from it.
NOTE
• Operation with dirty filters:
– cannot deodorise the air,
– cannot clean the air,
– results in poor heating or cooling,
– may cause odour.
• Dispose of old filters as non-flammable waste.
• To order titanium apatite photocatalytic air-purifying filter contact to
the service shop there you bought the air conditioner.
Item
Part No.
Titanium apatite photocatalytic air-purifying filter
(without frame) 1 set
KAF970A46
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English
„ Removing the front panel
1. Remove the front panel.
• Open the front panel.
• Remove the front panel securing strings (2 positions)
from the front grille.
2. Clean the front panel.
• Wipe it with a soft cloth soaked in water.
• Only neutral detergent may be used.
3. Attach the front panel.
• Insert the front panel into the lower front grille as
shown in the figure, and then secure both sides of
the panel using the strings.
• Close the front panel and lock it by sliding the front
panel stoppers on both sides downward.
• Remove the front panel from the air conditioner.
CAUTION
• 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.
• After cleaning, make sure that the front panel is securely fixed.
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Care and Cleaning
„ Check the units
„ 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 the 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.
• 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 27
„ 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.
„ Important information regarding the refrigerant used
• This product contains fluorinated 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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English
Troubleshooting
„ 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
A sound is heard.
The air conditioner stops
generating airflow during operation.
„ A sound like a flow of water
• Once the set temperature is reached, the airflow rate is
reduced and operation stopped in order to avoid generating cool airflow (during heating) or in order to keep the
humidity from rising (during cooling). Operation will resume
automatically when the indoor temperature rises or falls.
• This sound is generated because the refrigerant in
the air conditioner is flowing.
• 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 flows in the air conditioner even if the
air conditioner is not working when the indoor units in
other rooms are in operation.
„ Blowing sound
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 HEAT operation stops suddenly
and a flowing 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.
• This sound is generated when the flow of the refrigerant in the air conditioner is switched over.
„ Pinging sound
• This sound is generated when the size of the air
conditioner slightly expands or shrinks as a result of
temperature changes.
„ 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 flap does not start swing
immediately.
• The air conditioner is adjusting the flap position. The
flap will start moving soon.
Radiant panel surface temperature
• During RADIANT1 or RADIANT2 operation, the surface temperature of
the panel will be about 55°C at maximum; this is the normal condition.
Outdoor unit
The outdoor unit emits water or steam.
„ In HEAT or RADIANT 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.
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Troubleshooting
• Troubleshooting measures are classified into the following two types on a remedial basis.
Take an appropriate measure according to the symptom.
Not trouble
• These cases are not troubles.
Check
• Please check again before calling a
repair person.
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?
Operation stopped suddenly.
(OPERATION lamp flashes.)
• Are the air filters clean?
Clean the air filters.
• Is there anything to block the air inlet or the outlet of
the indoor and the outdoor units?
• Turn the breaker off and take all obstacles away. 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.
• 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 confirm that the lamps flash.
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 flashing after the above steps, there is
no malfunction. ►Page 27
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 airflow direction set appropriately?
An abnormal functioning happens
during operation.
The surface temperature and
condition of the radiant panel are
abnormal.
„ The radiant panel is not warmed up during
RADIANT1 or RADIANT2 operation.
„ The HEAT operation is used independently,
but the radiant panel is hot.
„ The COOL operation is used, but the radiant
panel is cold, frosted, and/or dewy.
„ The operation has stopped, but the OPERATION lamp (green) is blinking.
• Consult the service shop or the dealer where you
bought your 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.
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English
Hot air does not flow out soon after
the start of HEAT operation.
• The air conditioner is warming up. You should wait for
1 to 4minutes. (The system is designed to start discharging air only after it has reached a certain temperature.)
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 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 21
The indoor unit gives out odour.
• 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.)
Operation stopped suddenly.
(OPERATION lamp is on.)
• For system protection, the air conditioner may stop
operating on a sudden large voltage fluctuation. It
automatically resumes operation in about 3 minutes.
Mist comes out of the indoor unit.
• This happens when the air in the room is cooled into
mist by the cold airflow during COOL operation.
• This is because the air in the room is cooled by the
heat exchanger and becomes mist during defrost
operation.
Remote controller does not work
properly.
„ 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 set the batteries of this manual. ►Page 9
Operation stopped during COOL operation.
(OPERATION lamp flashes.)
• When the outdoor temperature is lower than 10°C, do
not use COOL operation. If the operation is used when
the outdoor temperature is lower than 10°C, the protective function of the main unit works and this disables
the operation.
Turn the bleaker off and take all obstacles away. 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.
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Troubleshooting
„ 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.
„ 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 qualified installer in accordance with relevant local and national legislation.
Units and waste batteries must be treated at a specialised 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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English
„ Fault diagnosis by remote controller
• The remote controller can receive from the indoor unit a corresponding error code according
to the fault.
1. When
is held down for 5 seconds, a
“
” indication blinks on the temperature
display section.
2. Press
repeatedly until a continuous
beep is produced.
• The code indication changes as shown below, and notifies with a long beep.
SYSTEM
CODE
00
U0
U2
U4
A1
A5
INDOOR
UNIT
OUTDOOR
UNIT
A6
A9
CE
C4
C9
EA
E1
E5
E6
E7
F3
H0
H6
H8
H9
J3
J6
L4
L5
P4
MEANING
NORMAL
REFRIGERANT SHORTAGE
OVER-VOLTAGE DETECTION
SIGNAL TRANSMISSION ERROR (BETWEEN INDOOR AND OUTDOOR UNIT)
INDOOR UNIT PCB ABNORMALITY
HEATING PEAK-CUT CONTROL OR FREEZE-UP PROTECTION (PERCEPTIBILITY BY
THERMISTOR FOR INDOOR HEAT EXCHANGER)
FAN MOTOR (DC MOTOR) ABNORMALITY
RADIANT PANEL TEMPERATURE RISE OR MOTOR OPERATED VALVE ABNORMALITY
FREEZE-UP PROTECTION (PERCEPTIBILITY BY THERMISTOR FOR RADIANT PANEL)
RADIANT PANEL THERMISTOR ABNORMALITY
INDOOR HEAT EXCHANGER THERMISTOR ABNORMALITY
ROOM TEMPERATURE THERMISTOR ABNORMALITY
FOUR WAY VALVE ABNORMALITY
OUTDOOR UNIT PCB ABNORMALITY
OL ACTIVATION (COMPRESSOR OVERLOAD)
COMPRESSOR LOCK
DC FAN LOCK
DISCHARGE PIPE TEMPERATURE CONTROL
COMPRESSOR SYSTEM SENSOR ABNORMALITY
POSITION SENSOR ABNORMALITY
DC VOLTAGE / CURRENT SENSOR ABNORMALITY
OUTDOOR TEMPERATURE THERMISTOR ABNORMALITY
DISCHARGE PIPE THERMISTOR ABNORMALITY
OUTDOOR HEAT EXCHANGER THERMISTOR ABNORMALITY
RADIATION FIN TEMPERATURE RISE
OUTPUT OVERCURRENT DETECTION
RADIATION FIN THERMISTOR ABNORMALITY
NOTE
• A short beep and two consecutive beeps indicate non-corresponding codes.
• To cancel the code display, hold
for 5 seconds. The code display also cancel itself if the button is not pressed for 1 minute.
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Troubleshooting
„ LED ON OUTDOOR UNIT PCB
3MXS, 4MXS, 5MXS series
GREEN
RED
MICROCOMPUTER
MALFUNCTION DETECTION
NORMAL
LED-A
LED1 LED2 LED3 LED4 LED5
−
−
−
−
−
−
−
−
DIAGNOSIS
NORMAL CHECK INDOOR UNIT
HIGH PRESSURE PROTECTOR WORKED OR FREEZE-UP IN
OPERATING UNIT OR STAND-BY UNIT
∗ OVERLOAD RELAY WORKED OR HIGH DISCHARGE PIPE
TEMPERATURE
FAULTY COMPRESSOR START
INPUT OVERCURRENT
∗ THERMISTOR OR CT ABNORMALITY
HIGH TEMPERATURE SWITCHBOX
HIGH TEMPERATURE AT INVERTER CIRCUIT HEATSINK
∗ OUTPUT OVERCURRENT
∗ REFRIGERANT SHORTAGE
LOW VOLTAGE TO MAIN CIRCUIT OR MOMENTARY VOLTAGE
LOSS
REVERSING SOLENOID VALVE SWITCHING FAILURE
FAN MOTOR FAULT
[NOTE 1]
POWER SUPPLY FAULT OR [NOTE 2]
NOTE: The LED5 is only available in the 5M series.
GREEN NORMALLY FLASHING
RED NORMALLY OFF
ON
FLASHING
OFF
−
IRRELEVANT
„ LED ON OUTDOOR UNIT PCB
2MXS series
GREEN
MICROCOMPUTER NORMAL
LED-A
DIAGNOSIS
NORMAL CHECK INDOOR UNIT
[NOTE 1]
POWER SUPPLY FAULT OR [NOTE 2]
GREEN NORMALLY FLASHING
ON
FLASHING
OFF
NOTE
1. Turn the power off and then on again. If the LED display recurs, the outdoor unit PCB is faulty.
2. Diagnosis marked
* Do not apply to some cases. For details, refer to the service guide.
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English
„ MEMO
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Quick Reference
Two-dimensional bar code is a code
for manufacturing.
3P276869-1A M10B205A (1208) HT
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