Daikin ROOM AIR CONDITIONERS User manual

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12.Operation Manual
2
SafetyPrecautions
n Read the following warnings and cautions carefully
before operating the system and use it correctly.
n This manual classifies the precautions to the user
into the following two categories. Be sure to follow
all as they are all important to ensure safety.
n After reading this manual, keep it in a place easily
accessible to the user for future reference.
Failure to follow a warning is very likely
to result in such grave consequences
as death or serious injury.
WARNING
Failure to follow a caution may result in
serious injury or property damage, and
in certain conditions, may result in a
grave consequence.
CAUTION
Do not attempt toextend the
power cordby joining it to an-
other cord, or by using an exten-
sion cord. Do not put any other
loads on the power supply socket.
Failure to follow this will cause electric
shocks, abnormal heating or fire.
Do not put a finger,a rodorother
objectsinto the airoutlet or inlet.
As the fan is rotating at a high
speed, it will cause injury.
Do notdamage or attempt to
modify the power cord. Do not
use the cord ina damaged state
or tied ina bundle.
Applying a heavy weight, heat or
tension on the power cord will
damage it, causing electric shocks
or fire.
Do not attempt torepair, relocate,
modify or reinstall the air
conditioner by yourself.
Incorrect work will cause electric
shocks, fire etc. For repairs and
reinstallation, consult the shop
where you bought the air
conditioner.
Do not expose your body to the
cool (heat) air for a longtime; do
not cool(heat)theroom too
much.
It will affect your physical conditions
and cause health problems.
If anything abnormal suchas a
burning smell occurs, stop the
operation immediately and turn
thebreaker OFF.
Continued abnormal operation will
cause troubles, electric shocks, fire
etc. If anything is abnormal, consult
the shop where you bought the air
conditioner.
WARNING
Do notusetheairconditioner for
preservation purposes.
Do not use it for preserving precision
instruments, foods, plants, animals,
works of fine arts etc.Performance or
quality may deteriorate and animal or
plant life may be shorter.
Beforecleaning, be sure to stop the
operation and turn the breaker OFF.
As a fan is rotating at a high speed,
cleaning during operation may
cause injury.
Do not placeunder theindoor or
outdoor unit anything which must
be kept away from moisture.
Indoor unit: moisture in the air may
condense and drip in certain
conditions.
Outdoor unit: during cooling
operation, condensation may drip
from the piping connections.
Do not place a vessel containing
waterontheunit.
Water may penetrate into the unit
and degrade electrical insulations,
resulting in an electric shock.
Do not operate theairconditioner
with a wethand.
It may cause an electric shock.
After a long use, check the unit
stand and fittings for damage.
The unit may drop and cause injury
if damage is left unrepaired.
Do not wash the unit with water.
It may cause an electric shock.
Do not place a burning appliance in
places exposed tothe air flow from
theunit orunder theindoor unit.
It may cause incomplete combustion
or deformation of the unit from heat.
Ventilate the room from time to
time.
Be careful especially when using a
burning appliance in the same room.
Insufficient ventilation may cause
shortage of oxygen.
Do not stand or sit on the outdoor
unit. Do not place any object on
theunit.
The object or the person may fall
down or drop, causing injury.
Do not expose plants oranimals
directly to theair flow.
It may cause adverse effects on the
plant or the animal.
Do not block airinlets nor outlets.
Impaired air flow may result in
insufficient performance or troubles.
CAUTION

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To prevent inter-
ference, place it
at least 1 m away.
A place
with good
ventilation
Air
outlet Air inlet
Wall
Installation
Do not attempt to install the air conditioner
by yourself.
Consult the service shop or a qualified
technician.
Incorrect work will result in water leakage,
electric shocks or fire. For installation, consult
the service shop where you bought the unit or
a qualified technician.
WARNING
Do not connect the airconditioner to a
power supply different from the
specification.
It may cause trouble or fire.
Do not install the air conditioner in places
where flammable gasmay leak.
If leaked gas should accumulate near the unit,
fire may occur.
Depending on the environment, an earth
leakage breaker must be installed.
Lack of an earth leakage breaker may result in
electric shocks.
Arrange the drain hose to ensure smooth
drainage.
Incomplete drainage may cause wetting of the
building, furniture etc.
CAUTION
Installation site
n To install the air conditioner in the following types of
environments, consult the shop.
l Places with an oily ambient or where steam or soot occurs.
l Salty environment such as coastal areas.
l Places where sulfide gas occurs such as hot springs.
l 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 fromnoises.
n For installation, choose a place as described below.
l A place solid enough to bear the weight of the unit which does not amplify the operation noise or vibration.
l A place from where the air discharged from the outdoor unit or the operation noise will not annoy your neighbours.
Electrical work
l For power supply, be sure to use a separate power circuit dedicated to the air conditioner.
System relocation
l Relocating the air conditioner requires specialized knowledge and skills. Please consult the shop where you
bought the air conditioner if relocation is necessary for moving or remodeling.
l For efficient operation, take as large
spaces around the unit as site allows.
The air conditioner must be earthed.
Incomplete earthing may result in electric
shocks.
Do not connect the earth line to a gas pipe,
water pipe, lightening rod, or a telephone
earth line.

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4
ON
OFF
Air purifying filter Front grille
Indicator lamps
Grille tab
Intelligent Eye lamp (green)
Operation lamp (green)
Air purifying filters are
attached to the inside of
the air filters.
Flap (horizontal blade)
(See page 10 "Adjusting
the Air Flow Direction".)
TIMER lamp (orange)
(See page 8.) (See page 11 "Timer Operation".)
(See page 13 "Intelligent Eye".)
The louvre is inside of the air
outlet.
(See page 10 "Adjusting the
Air Flow Direction".)
Air outlet
Louvre (vertical blades)
ON/OFF button
Air inlet
Indoor unit
NamesofParts
Opening thefront grille
How to open the front grille : (See page 14 "Careand Cleaning".)
Room temperature sensor:
•It senses the air temperature around the
unit.
FTK
FTX
Mode
COOL
AUTO
Air flow rate
AUTO
AUTO
Temperature setting
22˚C
25˚C
•The operation mode refers to the following table.
•Push this button once to start operation. Push once again to stop it.
•This button is useful when the remote controller is missing.
ON/OFF button
•It receives signals from the remote
controller.
•When the unit receives a signal, you will
hear a short beep.
Receiver:
• In the case of multi system operation, there are times when the unit
does not activate with this button.(See page 8.)
Intelligent Eye:
•It detects the movements of people and
automatically switches between normal
operation and save operation.
(See page 13.)
CAUTION
Before opening the front grille, be sure to
stop the operation and turn the breaker
OFF. If the power is on, the fan may rotate
inside and may cause injury.

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C
ON
AMPM AMPM
TEMP
ON/OFF
MODE
-SLEEP SENSOR
ON
OFF TIMER
FAN
SWING
CANCEL
POWERFULL
Transmitter
It sends signals to the indoor unit.
ON/OFF button
Press it once to start operation.
To stop it, press it once again.
CLOCK button
(See page 7 "Preparation
Before Operation - Setting
the Clock)
TIMER CANCEL button
It cancels the timer setting.
FAN setting button
It selects the air flow rate
setting.
SWING button
(See page 10 "Adjusting the Air
Flow Direction")
Intelligent Eye button
(See page 13 "Intelligent Eye
Operation")
Good Sleep Cooling Operation
(G-SLEEP)
(See page 12 "Good Sleep Cooling
Operation (G-SLEEP)")
It changes the temperature
setting.
Display
It displays the
current settings.
(In this illustration,
each section is
shown with all its
displays ON for the
purpose of
explanation. Some
models may not
show all its
indications.)
ONTIMER button
(See page 11 "Timer Operation")
ONTIMER Setting button
It Changes the time setting
MODE selector button
It selects the operation mode.
TEMPERATURE/TIME
adjustment buttons
: DRY
: COOL
: FAN
: AUTO
: DRY
: COOL
: HEAT
<FTK> <FTX>
Open
the
cover.
POWERFULL button
(See page 9 "POWERFUL
Operation")
OFFTIMER button
Drain hose
Earth terminal
Air outlet
Air inlet
Refrigerant piping
and inter-unit cable
(Back and side)
It is inside of this part.
Outside air temperature sensor
It senses the ambient temperature
around the unit.
Appearance of the outdoor unit may differ
with some models.
Outdoor unit
NamesofParts
Remote controller
<FTK25, 35 FTX25, 35>
<ARC423A1, ARC423A2>

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n Setting thebatteries
n
Operating the remote controller
l 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.
l Do not drop the remote controller.Do not get it wet.
l The maximum distance for communication is about 7 m.
About the remote controller
l Never expose the remote controller to direct sunlight.
l Dust on the signal transmitter or receiver will reduce the
sensitivity.Wipe off dust with soft cloth.
l 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.
l If the remote control signals happen to operate another
appliance, move that appliance to somewhere else, or
consult the shop.
n To fix theremote controller holder
onthewall
Choose a place from where the signals reach
the unit.
Fix the holder to a wall, a pillar, etc. with the
screws supplied with the holder.
Fit the claw of the holder into the bottom of
the remote controller, and push the remote
controller onto the wall.
Remote controller
1
2
3
l To remove, pull it upwards.
Preparation Before Operation
ATTENTION
+–
–+
Position + and
– correctly!
2
3
1
Remote
controller
holder
Set.
Receiver
1
2
3
Press with a finger and slide the back
cover to take it off.
Set two dry batteries (AAA).
Set the back cover as before.
l This will cause the figures on the display to flash.Set the
clock at this point.
About batteries
l When replacing the batteries, use batteries of the same
type, and replace the two old batteries together.
l When the system is not used for a long time, take the
batteries out.
l When the operation display screen of the remote controller
is hard to see and the reception become hard, replace the
batteries with new AAA batteries.
l 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.
ATTENTION

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7
l Holding down ( ) or ( ) button
rapidly increases or decreases the time display.
Tips for saving energy
l Be careful not to cool (heat) the room too much.
Keeping the temperature setting at a moderate level helps
save energy.
Recommendedtemperature setting
For cooling: 26˚C – 28˚C
For heating: 20˚C – 24˚C
l Cover windows with a blind or a curtain.
Blocking sunlight and air from outdoors increases the
cooling (heating) effect.
l Clogged air filters cause inefficient operation and waste
energy. Clean them once in about every two weeks.
Please note
l The air conditioner always consumes 15 – 35 watts of electricity
even while it is not operating.
l If you are not going to use the air conditioner for a long period,
for example in spring or autumn, turn the breaker OFF.
l Use the air conditioner in the following conditions.
Mode
COOL
HEAT
DRY
Operating conditions
Outdoor temperature : 10 to 46˚C
(In 2MX, 3MX,and 4MX: 10 to 43˚C)
Indoor temperature : 18 to 32˚C
Indoor humidity : 80% max.
Outdoor temperature : –10 to 21˚C
Indoor temperature : 10 to 30˚C
Outdoor temperature : 21 to 46˚C
(In 2MX, 3MX,and 4MX: 21 to 43˚C)
Indoor temperature : 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.
(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.
l
Operation outside this humidity or temperature range may cause
a safety device to disable the system.
NOTE
Preparation Before Operation
Indoor unit
n Setting the clock
Press .
AM
is displayed.
Press
TIMER
to set the clock to the present
time.
blinks.
Press .
blinks.
(Now the clock is set.)
1
2
3
n Turn the breaker ON
l Turning ON the breaker opens the flap, then closes it again.
(This is a normal procedure.)
n Setting theairpurifying filters
Openthefront grille.
l Hold the grille by the tabs on the two sides and lift it until
it stops with a click.(about 60˚)
Set the air purifying filters.
l Attach an air purifying filter to each air filter.
(See page 14 "Care and cleaning")
Set theairfilters intheiroriginal
positions and closethefront grille.
l Operation without air filters may result in troubles as dust
will accumulate inside the indoor unit.
Pull out the air filters.
l Push upwards the tab at
the center of each air
filter, then pull it down.
1
2
3
4
AM
Display
PM
Display
PM
Display

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8
The air conditioner operates with the settings of your
choice.
From the next time on, the air conditioner will operate
with the same settings.
1
2
Press
MODE
and select a mode.
l Each pressing of the button advances the mode setting
in sequence.
<FTK>
Press
ON/OFF
. Then OPERATION lamp lights up.
n To stop:
Press
ON/OFF
once again.
Then OPERATION lamp goes off.
n To change thetemperature setting:
To change the air flow rate setting:
AUTO •DRY •COOL •HEAT •FAN Operation
NOTE
<NoteonHEAT modeoperation>
Since this air conditioner heats the room by taking heat from
outdoor air to indoors, the heating capacity becomes smaller in
lower outdoortemperatures.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 heating operation,
it takes some time before the room gets warmer.
In heating 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.
<NoteonDRY modeoperation>
This operation dehumidifies the indoor air when it is humid.
<NoteonAUTO operation>
In AUTO operation, the system selects a temperature setting
and an appropriate 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, you can select manually,
you like the mode and setting.
DRY or FAN mode
The temperature
setting is not vari-
able.
AUTO or HEAT or COOL mode
Press to raise the temperature and
press to lower the temperature.
Set to the temperature you like.
Press
FAN
.
DRY mode
The air flow rate
setting is not
variable.
AUTO or HEAT or COOL or FAN mode
Five levels of air flow rate setting from
" " to " "plus " "are available.
n To change the air flow direction:
(See page 10.)
<FTX>
l At smaller air flow rates, cooling or heating effect is also
smallwer.
Display
ON
OFF
C
Display
Display

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9
POWERFUL operation quickly maximizes the cooling
effect in any operation mode.You can get the maximum
capacity with a touch of a button.
l Pressing the (POWERFUL) button during operation starts
POWERFUL operation.
l POWERFUL operation ends in 20 minutes. Then the system
automatically operates again with the settings which were used
before POWERFUL operation.
Press .
n To cancel POWERFUL operation:
Press .
Notes on POWERFUL operation
l In COOL andHEAT mode
To maximize the cooling and heating effect, the capacity of
outdoor unit must be increased and the air flow rate be fixed to
the maximum setting.
The temperature and air flow settings are not variable.
l In DRY mode
The temperature setting is lowered by 3˚C and the air flow rate
is slightly increased.
l In FAN mode
The air flow rate is fixed to the maximum setting.
1
POWERFUL
Operation
l Precedence-room setting
When setting the preference-room during installation, the
indoor unit's operation mode always takes priority.
When the precedence-setting room unit is operated in
POWERFUL mode, there are times that air conditioners in other
rooms will temporarily stop in order to centralize power to the
unit in the room.
Please adjust the precedence-room setting to match your life
style. Moreover, for precedence-room settings, please consult
the service shop where you bought the unit.
Precedence-room setting is applied to only 4MX80, 4MK90.
l COOL/HEAT mode
This mode is used to set the unit to only cool or heat. For
information on using this mode, consult the service shop where
you bought the unit.
COOL/HEAT mode is applied to only 4MX80, 4MK90.
NoteforMulti
System
NOTE
<Notefor heatpump multi system>
When two or more indoor units have no precedence-room
settings and are set to modes that differ from each other, the
indoor unit which is operated first activates, while the other
indoor unit does not activate and the OPERATION lamp blinks.
(This is not a malfunction.)
An indoor unit that is not in operation will automatically start
and operate in the mode in which a previously operated indoor
unit was stopped. However, if the unit in operation provides
only COOL and DRY modes, simultaneous operation is
possible.
Display
∗
∗

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In DRY mode or COOL mode
In HEAT or FAN mode
When stop operation
Upper limit in cooling
Lower limit in cooling
0˚
25˚
20˚
45˚
When stop operation
Upper limit in heating
Lower limit in heating
....... To stop the flap at an
angle you like, press
SWING
.
Adjusting the
horizontal blade(flap)
You can adjust the air flow direction to increase your
comfort.
l Be careful when adjusting the louvre. Inside the air
outlet, a fan is rotating at a high speed.
ATTENTION
Notes on flap angles
l When
SWING
is selected, the flap swinging range depends
on the operation mode.(See the figure.)
l The real flap angles are differ from the display of remote
controller.
Press
SWING
.
l Every time the button is pressed," "appears or disappears.
....... The flap automatically
swings up and down.
Adjusting the Air Flow Direction
l Always use a remote controller to adjust the flap angle.If
you attempt to move it forcibly with hand when it is
swinging, the mechanism may be broken.
ATTENTION
Adjusting the louvre
Hold the knob and move the louvre.
(You will find a knob on the left-side and the right-side
blades.)
ON
ON

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11
Noteson OFFTIMER
l NIGHT SET MODE
When the OFF TIMER is set, the air conditioner automatically
adjusts the temperature setting (0.5ºC up in COOL, 2.0˚C down
in HEAT) to prevent excessive cooling (heating) for your
pleasant sleep.
Timer functions are useful for automatically switching the
air conditioner on or off at night or in the morning.You can
also use OFFTIMER and ON TIMER in combination.
1Press
OFF
while the air conditioner
is operating.
l
Check that the clock is correct.
If not, set the clock to the present time.(See page 7.)
Press
CANCEL
.
Then the TIMER lamp lights up.
n To cancel the timer:
Press
OFF
once again.
Then the TIMER lamp goes off.
OFFTIMER operation
Press
TIMER
until the time setting
reaches the point you like.
l Every pressing of either button increases or decreases
the time setting by 10 minutes.Holding down either
button changes the setting rapidly.
2
3
Press
ON
while the air conditioner is
not operating.
Press
ON
once again.
Press
TIMER
until the time setting
reaches the point you like.
l Every pressing of either button increases or decreases
the time setting by 10 minutes.Holding down either
button changes the setting rapidly.
ONTIMER operation
1
2
3
Combining ON TIMER and OFFTIMER
l A sample setting for combining the two timers is shown below.
Press
CANCEL
.
n To cancel the timer:
Then the TIMER lamp goes off.
Then the TIMER lamp lights up.
l Check that the clock is correct.If not, set the clock to the present
time (See page 7).
Timer Operation
AM
is displayed.
blinks.
*Previous time setting
appears on display.
AM
is displayed.
blinks.
*Previous time setting
appears on display.
AM
Display
AM
Display
Display
AM
Present time: 11:00 PM
(The unit operating)
OFF TIMER at 0:00 a.m.
ON TIMER at 7:00 a.m. Combined



(Example)
NotesonON,OFFTIMER
l When TIMER is set, the present time is not displayed.
l Once you set ON,OFFTIMER, the time setting is kept in the
memory. (The memory is canceled when remote controller
batteries are replaced.)
ATTENTION
AM
Display
ON
OFF
AM AM
Display
n In the following cases, set the timer again.
l After a breaker has turned OFF.
l After a power failure.
l After replacing batteries in the remote controller.
ON
OFF

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12
•The "Good Sleep Cooling Operation" makes the 1/f Fluctuating Temperature.
It brings you comfortable sleep as it prevents from getting chilied.
Press
-SLEEP
in cooling operation.
n To change the temperature setting. (See page 8.)
n To change the airflow rate setting. (See page 8.)
n To change theairflow direction setting. (See page 10.)
n To cancel the "Good SleepCooling Operation", press
-SLEEP
.
→Back to the normal cooling opration.
1
Good Sleep Cooling Operation
(G-SLEEP)
Noteson "Good sleepcooling operation"
l We adopt the 1/f fluctuation rhythm in temperature control.
A 1/f fluctuation rhythm is used in temperature control.With it, temperature is fluctuated within a ±1˚C
range of the set temperature.
The 1/f fluctuation is comfortable rhythm existed in the natural world. (refer to "What's the 1/f
fluctuation")
l Air blow is the lowest when the fan is set to "AUTO".
l If you don't like this function, change the operation mode.(See page 8)
What is 1/f fluctuation...
It seems irregular but there seems to be a self-resemblance rule in our mother nature.
For example, the waves in the ocean forms irregularly but when you look at the coast line, there are
some places where they look similar.
When you look close around you, our heart doesn't beat in regular intervals but shows "1/f
fluctuation" in a long term. The research shows this "1/f fluctuation" and comfort has some kind of
relation and is applied to the comfort control fiels.

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13
Press
SENSOR
While the air conditioner
is operating. (The Sensor lamp lights up.)
n To cancel the "Intelligent Eye",
press
SENSOR
. (The Sensor lamp goes off.)
[EX.]
1
Intelligent Eye
n Adjusting theangleofthe
Intelligent-eye sensor
•You can adjust the angle of the Intelligent-eye
sensor to remove the detection area.
(Adjustable angle: 15˚ to right and left of
centre)
•Gently push and slide the sensor to adjust
the angle.
•After adjusting the angle, gently wipe the
sensor with a clean cloth, being careful not to
scratch the sensor.
CAUTION
•Do not hit or violently push the Intelligent-eye sensor. This
can lead to damage and malfunction.
"Intelligent Eye"is the infrared sensor which detecs the
human movement.
Intelligent-eye
sensor
15˚15˚
Moving the sensor to the left Moving the sensor to the right
Whensomebody intheroom
•Normaloperation (The sensor lamp lights up.)
Whennobody intheroom
•20 min.after, start save operation.*
(The sensor lamp goes off.)
Sombody back intheroom
•Back tonormaloperation.
(The sensor lamp lights up again.)
"Intelligent Eye" isuseful for
EnergySaving
* Save operation
l Change the temperature –2˚C in heat/ +2˚C in cool/ +1˚C in
dry mode from set temperature.
l Decrease the air flow rate slightly in fan operation.
Noteson "Intelligent Eye"
l Saving operation will not go on during
powerful operation.
l Night set mode (see page 11.) will not go on
during you use Intelligent Eye.
l You can sleep more comfortablly by using
"Good Sleep Cooling Operation (G-SLEEP)"
function (see page 12.) at the same time.
Do not place large objects near the sensor.
Also keep heating units or humidifiers outside
the sensor's detection area.
This sensor can detect objects it shouldn't as
well as not detect objects it should.
CAUTION
l Application range is as follows.
l Sensor may not respond when you are 5m or
more away. (Check the application range)
l Sensor detection sensitivity changes according
to indoor unit location, the speed of passersby,
temperature range, etc.
l The sensor also mistakenly detects pets,
sunlight, fluttering curtains and light reflected
off of mirrors as passersby.
80˚ 50˚
5m
50˚
5m
Vertical angle 40˚
(Side View) Horizontal angle 50˚ (Top View)

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14
Air filter
Air purifying
filter frame
•Hold the recessed
parts of the frame and
unhook the four claws.
CAUTION
Before cleaning, be sure to stop the operation and
turn the breaker OFF.
Openthefrontgrille.
l Hold the grille by the tabs on the two sides and lift it
unitl it stops with a click.(about 60˚)
Pullout theairfilters.
l Push a little upwards the tab
at the center of each air filter,
then pull it down.
1
3
2
Take off the air purifying filters and
clean them.
l Wash them with water, or
clean them with a vacuum
cleaner.
l If the dust does not come
off easily, wash them with
neutral detergent thinned
with lukewarm water, then
dry them up in the shade.
Care andCleaning
Set the air purifying filters and the air
filters as they were and close the front
grille .
4
NOTE
l In a dusty environment, clean the air filters at least once
in every two weeks even before the cleaning lamp lights
up.
l Operation with dusty air filters lowers the cooling and
heating capacity and wastes energy.
Cleaning the indoor and outdoor
units and the remote controller
NOTE
l To order air purifying filters, contact the service shop where
you bought the air conditioner.
l Once the air purifying filter element gets dirty, it is not
reusable but must be thrown away.
l Operation with dirty air purifying filters :
•cannot clean the air.
•results in poor cooling.
•may cause odour.
Cleaning theair filters
(It isrecommended toclean them every two weeks.)
Push
l Insert claws of the filters into slots of the front panel.The
front grille should lock at both sides and at the point in
the middle.Push the grille at the 3 points indicated by .
Open the front grille and pull out the
air filters.
Take off the air
purifying filters.
1
2
l Wipe them with dry soft cloth.
For cleaning, do not use water hotter than 40˚C, benzine,
gasoline, thinner, nor other volatile oils, polishing compound,
scrubbing brushes nor other hard stuff.
Replacing air purifying filters
(It is recommended to replace them every three
months.)
l Air purifying filters need to be replaced regularly.
Detach the filter
element and
attach a new
one .
3
Attach the air
purifying filter.
4Set the air
filters as they
were and close
the front grille.
(Push the grille at the 3
points, two at both
sides and in the
middle.)
5
Item Part No.
Air purifying filter (with frame) KAF918A41
Air purifying filter (without frame) KAF918A42

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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 earth wire is not
disconnected or broken.
Check that the drain comes smoothly out
of the drain hose during COOL or DRY
operation.
l 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.
Beforea long idle period
2 Clean the air filters and set them again.
3 Take out batteries from the remote
controller.
4 Turn OFF the breaker for the room air
conditioner.
1
2
Press
MODE
and select " ".
Press
ON/OFF
.
•Perform this operation when the room
temperature is under 28˚C.
Care andCleaning
<FTK>
1 Operate the fan alone for several hours
on a fine day to dry out the inside.
<FTX>
1
3
2
Press
ON/OFF
.
Press
MODE
and select " ".
Press
TEMP
and set the temperature to 32˚C
Cleaning the front grille
CAUTION
Youmay remove thefront grille forcleaning.
Openthefront grille.
l Hold the grille by the tabs on the two sides and lift it until
it stops with a click.
1
3Cleanthefront grille.
l You may wipe it with a soft cloth soaked in water.
l Only neutral detergent may be used.
l You may wash the grille with water. After washing, dry it
with cloth, then dry it up in the shade.
2Remove thefront grille.
l Supporting the front grille with one hand, release the lock
by sliding down the knob with the other hand.
l To remove the front grille, pull it toward yourself with both
hands.
4Attach thefront grille.
l Set the 3 keys of the front grille into the slots and push
them in all the way.
l Supporting the front grille with one hand, fit the lock by
sliding up the knob with the other hand.
l Close the front grille slowly in this state. (Push the grille
at the 3 points, two at both sides and in the middle.)
l When removing or attaching the front grille, use a robust
and stable stool and watch your steps carefully.
l When removing or attaching the front grille, support the
grille securely with hand to prevent it from falling.
l For cleaning, do not use water hotter than 40˚C, benzine,
gasoline,thinner,norother volatileoils,polishingcompound,
scrubbing brushes nor othe hard stuff.
l After cleaning, make sure that the front grille is securely fixed.
Fit the key
into the slot.
Slide up the knob.

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Case
Operation does not start soon.
l When ON/OFF button was
pressed soon after operation
was stopped.
l When the mode was reselected.
Hotairdoesnot flow out soon
afterthestart ofheating
operation.
The heating operation stops
suddenly anda flowing sound is
heard.
The outdoor unit emits water or
steam.
Mists come out of the indoor
unit.
The indoor unit gives out odour .
The outdoor fan rotates while
theairconditioner isnot in
operation.
The operation stopped
suddenly.
(OPERATION lamp ison)
l These cases are not troubles.
The following cases are not air conditioner troubles but have some reasons.You may just
continue using it.
Explanation
l This is to protect the air conditioner.
You should wait for about 3 minutes.
l 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.)
l The system is taking away the frost on the outdoor unit.
You should wait for about 3 to 8 minutes.
n In HEAT mode
•The frost on the outdoor unit melts into water or
steam when the air conditioner is in defrost
operation.
n In COOL or DRY mode
•Moisture in the air condenses into water on the cool
surface of outdoor unit piping and drips.
n This happens when the air in the room is cooled into
mist by the cold air flow during cooling operation.
n This happens when smells of the room, furniture, or
cigarettes are absorbed into the unit and discharged
with the air flow.
(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.)
n After operation is stopped:
•The outdoor fan continues rotating for another 30
seconds for system protection.
n While the air conditioner is not in operation:
•When the outdoor temperature is very high, the out
door fan starts rotating for system protection.
n For system protection, the air conditioner may stop
operating on a sudden large voltage fluctuation.
It automatically resumes operation in about 3 minutes.
Trouble Shooting

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17
l Check again
Please check again before calling a repair person.
Trouble Shooting
Case
The airconditioner does not
operate.
(OPERATION lamp isoff)
Cooling orHeating effect is
poor.
Operation stops suddenly.
(OPERATION lampblinks.)
Anabnormal functioning
happens during operation.
Check
l Hasn't a breaker turned OFF or a fuse blown?
l Isn't it a power failure?
l Are batteries set in the remote controller?
l Is the address switch in the remote controller set
correctly?
(See page 6 "Preparation Before Operation".)
l Is the timer setting correct?
l Are the air filters clean?
l Is there anything to block the air inlet or the outlet of the
indoor and the outdoor units?
l Is the temperature setting appropriate?
l Are the windows and doors closed?
l Are the air flow rate and the air direction set
appropriately?
l Is the unit set to the Intelligent Eye mode?
(See page 13.)
l Are the air filters clean?
l 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 blinks, call the service shop where you bought the air
conditioner.
l 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 blink.
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 blinking after the above steps, there is
no malfunction. (See page 8.)
l The air conditioner may malfunction with lightening 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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18
WARNING
n 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.
n 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.
n The powercord isabnormally hot ordamaged.
n Anabnormal sound isheard during operation.
n The safetybreaker, a fuse, orthe earthleakage
breaker cuts off theoperation frequently.
n A switch ora button often fails towork properly.
n Thereisa burning smell.
n Waterleaks fromtheindoor unit.
Turn the breaker
OFF and call the
service shop.
n After a power failure
The air conditioner automatically resumes
operation in about three minutes. You
should just wait for a while.
n Lightening
If lightening may strike the neighbouring
area, stop operation and turn the breaker
OFF for system protection.
Trouble Shooting
l Call the service shop immediately.
We recommend periodicalmaintenance
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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