DAIKIN ROOM AIR CONDITIONER
OPERATION MANUAL
MODELS
FTXG20LV1BW
FTXG25LV1BW
FTXG35LV1BW
FTXG50LV1BW
FTXG20LV1BS
FTXG25LV1BS
FTXG35LV1BS
FTXG50LV1BS
Feature
For your comfort and energy
saving
INTELLIGENT EYE
The INTELLIGENT EYE sensor detects the human movement in
a room. If no one is in the room for more than 20 minutes, the
operation automatically changes to energy saving operation.
Page 15
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 23
Other functions
1
COMFORT AIRFLOW
OUTDOOR UNIT QUIET
The airflow direction will be in upward
while in COOL operation, in downward
while in HEAT operation. This function
will prevent cold or warm air from
directly blowing on your body. Page 15
OUTDOOR UNIT QUIET operation
lowers the noise level of the outdoor
unit. This function is useful when you
need to consider the noise for your
neighbourhood. Page 19
 Read before Operation
Safety Precautions ......................................... 3
Names of Parts ............................................... 5
Preparation before Operation ......................... 9
 Operation
AUTO · DRY · COOL · HEAT · FAN
Operation ........................................... 11
Adjusting the Airflow Direction
and Rate ............................................ 13
COMFORT AIRFLOW /
INTELLIGENT EYE Operation ........... 15
POWERFUL Operation ...................... 18
ECONO / OUTDOOR UNIT QUIET
Operation ........................................... 19
OFF TIMER Operation ....................... 21
ON TIMER Operation ........................ 22
WEEKLY TIMER Operation ............... 23
 Multi Connection
Note for Multi System .................................. 29
 Care
Care and Cleaning ....................................... 31
 Troubleshooting
ECONO
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 19
Troubleshooting ........................................... 35
The English text is the original instruction. Other languages are
translations of the original instructions.
2
English
Contents
Safety Precautions
• Keep this manual where the user can easily find it.
• Read the precautions in this manual carefully before operating the unit.
• This appliance is intended to be used by expert or trained users in shops, in light industry and on farms, or for commercial and
household use by lay persons.
• Sound pressure level is less than 70 dB (A).
• 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
CAUTION
Failure to follow these instructions properly may result in
personal injury or loss of life.
Never attempt.
Failure to observe these instructions properly may result in
property damage or personal injury, which may be serious
depending on the circumstances.
Be sure to follow the
instructions.
Be sure to establish an earth
connection.
• 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 gases (e.g. flammable or corrosive)
are detected near the unit.
• Be aware that prolonged, direct exposure to cool or warm air from the air conditioner, or to air that is too cool or too
warm can be harmful to your physical condition and health.
• Do not place objects, including rods, your fingers, etc., in the air inlet or outlet. Product damage or personal injury
may result due to contact with the air conditioner’s high-speed fan blades.
• Do not attempt to repair, dismantle, reinstall or modify the air conditioner yourself as this may result in water leakage,
electric shocks or fire hazards.
• Do not use flammable spray near the air conditioner, or otherwise fire may result.
• Do not use a refrigerant other than the one indicated on the outdoor unit (R410A) when installing, moving or
repairing. Using other refrigerants may cause trouble or damage to the unit, and personal injury.
• To avoid electric shocks, do not operate with wet hands.
• Beware of 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 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 circuit breaker. Failure to install the earth leakage circuit breaker may result in
electric shocks 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.
3
English
Safety Precautions
CAUTION
• Do not sit on the outdoor unit, put things on the unit, or pull the unit. Doing so may cause accidents, such as falling or
toppling down, thus resulting in injury, product malfunctioning, or product damage.
• Do not place objects that are susceptible to moisture directly beneath the indoor or outdoor units. Under certain
conditions, condensation on the main unit or refrigerant pipes, air 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.
• Avoid impacts 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.
• 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.
• To avoid oxygen depletion, ensure that the room is adequately ventilated if equipment such as a burner is used
together with the air conditioner.
• Before cleaning, be sure to stop unit operation, turn off the circuit breaker or remove the power cord. Otherwise, an
electric shock and injury may result.
• Only connect the air conditioner to the 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 can be used by children aged from 8 years and above and persons with reduced physical, sensory or
mental capabilities or lack of experience and knowledge if they have been given supervision or instruction concerning
use of the appliance in a safe way and understand the hazards involved.
• Children shall not play with the appliance.
• Cleaning and user maintenance shall not be made by children without supervision.
Installation site.
P003
 To install the air conditioner in the following types of environments, consult the dealer.
•
•
•
•
Places with an oily environment or where steam or soot occurs.
Salty environment such as coastal areas.
Places where sulfide gas occurs such as hot springs.
Places where snow may block the outdoor unit.
 Be sure to follow the instructions below.
• The indoor unit is at least 1m away from any television or radio set (unit may cause interference with the picture or sound).
• The drain from the outdoor unit must be discharged to a place of good drainage.
Consider nuisance to your neighbours from noises.
 For installation, choose a place as described below.
• A place solid enough to bear the weight of the unit which does not amplify the operation noise or vibration.
• A place from where the air discharged from the outdoor unit or the operation noise will not annoy your neighbours.
Electrical work.
• For power supply, be sure to use a separate power circuit dedicated to the air conditioner.
System relocation.
• Relocating the air conditioner requires specialized knowledge and skills. Please consult the dealer if relocation is
necessary for moving or remodeling.
4
Names of Parts
Indoor Unit
INTELLIGENT EYE
sensor
• Appearance of the indoor unit may differ.
Air inlet
• It detects the movements
of people and automatically
switches between normal
operation and energy
saving operation. Page 15
Upper front
panel
Indoor temperature
sensor
Air outlet
• It detects the air
temperature around the
unit.
Lower front panel
Flaps
(horizontal
blades)
• It is located on the back of the
upper front panel during operation.
Page 13
Louvres (vertical blades)
• The louvres are inside of the air outlet.
Page 13
Display
Multi-monitor lamp and
TIMER lamp
INTELLIGENT EYE lamp
(green) Page 16
Multi-monitor lamp
Signal receiver and Indoor
unit ON/OFF switch
• The lamp colour changes according to
the operation.
Operation
Multi-monitor lamp
AUTO
Red/Blue
DRY
Green
COOL
Blue
Signal receiver
• It receives signals from the remote
controller.
• When the unit receives a signal, you will
hear a beep sound.
HEAT
Red
FAN
White
Case
Sound type
TIMER
Orange
Operation start
beep-beep
TIMER lamp
TIMER lamp colour
TIMER lamp colour : For COOL
2 sec.
5 sec.
Blue
5
beep
Operation stop
long beep
Indoor unit ON/OFF switch
• When operation by timer has been set, the multi-monitor lamp
periodically changes to orange. After lighting orange for about
5 seconds, it returns to the colour of the operation mode.
The multi-monitor lamp will turn orange on and off in cyclic
manner while the air conditioner is not in operation.
Orange
Setting changed
2 sec.
3 min.
2 sec.
5 sec.
DRY :
Green
Orange
COOL : Blue
Orange
HEAT : Red
Orange
FAN :
White
Orange
Stop :
Off
Orange
• Press this switch once to start operation.
Press once again to stop it.
• For the operation mode setting, refer to the following
table.
Mode
Temperature setting
Airflow rate
AUTO
25°C
AUTO
• This switch can be used when the remote controller is
missing.
English
Names of Parts
 Open the upper front panel
Back of the upper front panel
Panel support plate
Lower front panel
Air filter
Titanium apatite
deodorizing filter
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
6
Names of Parts
Remote Controller
Signal transmitter
Receiver
50cm
or more
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 approx. 6m.
Make sure that there are no
obstacles within 50cm under the
signal receiver.
Such obstacles, if any, may have an
adverse influence on the reception
performance of the receiver and the
reception distance may be
shortened.
TEMPERATURE
adjustment buttons
• It changes the temperature setting.
Page 12
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 14
Front cover
• Open the front cover.
POWERFUL button
• POWERFUL operation.
Page 18
Model
7
ARC466A9
Page 8
English
Names of Parts
 Open the front cover
MODE selector button
• It selects the operation mode.
(AUTO/DRY/COOL/HEAT/
FAN) Page 11
ECONO/QUIET button
• ECONO/OUTDOOR UNIT
QUIET operation. Page 19
Lamp brightness
setting button
Page 9
SWING button
COMFORT/SENSOR
button
• Adjusting the airflow direction.
Page 13
• COMFORT AIRFLOW and
INTELLIGENT EYE
operation. Page 15
: WEEKLY button
OFF TIMER button
(NIGHT SET mode)
Page 21
: PROGRAM button
: COPY button
: BACK button
: NEXT button
TIMER CANCEL
button
• WEEKLY TIMER operation.
Page 23
• It cancels the timer setting.
Page 21,22
• It cannot be used for the
WEEKLY TIMER operation.
ON TIMER button
Page 22
SELECT button
• It changes the ON/OFF
TIMER and WEEKLY TIMER
settings. Page 21,22,23
CLOCK button
Page 10
8
Preparation before Operation
 To set the batteries
2
Position + and
– correctly!
3
1
1. Slide the front cover to take it off.
2. Set 2 dry batteries AAA.LR03 (alkaline).
3. Set the front cover as before.
 To fix the remote controller holder on the wall
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.
3. Place the remote controller in the remote
Screws
Remote
controller holder
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 approx. 1 year. If the remote controller display begins to fade and the degradation of reception performance occurs
within a year, however, replace both batteries with new, size AAA.LR03 (alkaline).
• The attached batteries are provided for the initial use of the system.
The usable period of the batteries may be short depending on the manufactured date of the air conditioner.
 Notes on remote controller
• Never expose the remote controller to direct sunlight.
• Dust on the signal transmitter or receiver will reduce the sensitivity. Wipe off dust with soft cloth.
• Signal communication may be disabled if an electronic-starter-type 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.
9
English
Preparation before Operation
 Turn on the circuit breaker
• After the power is turned on, the flaps of the indoor unit open and close 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.
10
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
2. Press
DRY
COOL
HEAT
FAN
.
•“
” is displayed on the LCD.
• The multi-monitor lamp lights up.
The colour of the lamp varies depending on the
operation mode.
Operation
Multi-monitor lamp
AUTO
Red/Blue
DRY
Green
COOL
Blue
HEAT
Red
FAN
White
Display
 To stop operation
Press
again.
•“
” disappears from the LCD.
• The multi-monitor lamp goes off.
NOTE
MODE
HEAT
COOL
DRY
AUTO
FAN
11
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
• 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 indoor temperature to user-setting level.
• This mode is valid for fan only.
English
AUTO · DRY · COOL · HEAT ·
FAN Operation
 To change the temperature setting
Press
.
• The displayed items on the LCD will change whenever either one of the buttons is
pressed.
COOL operation
HEAT operation
AUTO operation
18-32°C
10-30°C
18-30°C
to raise the temperature and press
Press
temperature.
to lower the
DRY or FAN operation
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 air conditioner always consumes a small amount of electricity even while it is not operating.
• If you are not going to use the air conditioner for a long period, for example in spring or autumn, turn off the circuit breaker.
• Use the air conditioner in the following conditions.
• Operation outside the humidity or temperature range described in the table may cause a safety device to disable the system.
MODE
Operating conditions
If operation is continued out of this range
COOL
Outdoor temperature : <2/3/4/5MXS> –10-46°C
<RXG> –10-46°C
Indoor temperature : 18-32°C
Indoor humidity : 80% max.
• A safety device may work to stop the operation.
(In multi system, it may work to stop the operation of the
outdoor unit only.)
• Condensation may occur on the indoor unit and drip.
• A safety device may work to stop the operation.
HEAT
Outdoor temperature : <2MXS> –10-24°C
<3/4/5MXS> –15-24°C
<RXG> –15-24°C
Indoor temperature : 10-30°C
DRY
Outdoor temperature : <2/3/4/5MXS> –10-46°C
<RXG> –10-46°C
Indoor temperature : 18-32°C
Indoor humidity : 80% max.
• A safety device may work to stop the operation.
• Condensation may occur on the indoor unit and drip.
12
Adjusting the Airflow Direction
and Rate
You can adjust the airflow direction to increase your comfort.
 To start auto swing
Up and down airflow direction
Press
.
• “ ” is displayed on the LCD.
• The flaps (horizontal blades) will begin to swing.
Right and left airflow direction
Press
.
•“
” is displayed on the LCD.
• The louvres (vertical blades) will begin to swing.
The 3-D airflow direction
Press
and
.
• “ ” and “
” are displayed on the LCD.
• The flaps and louvres move in turn.
• To cancel 3-D airflow, press either
or
The flaps or louvres will stop moving.
again.
 To set the flaps or louvres at desired position
• This function is effective while flaps or louvres are in auto swing mode.
Press
and
when the flaps or
louvres have reached the desired position.
• In the 3-D airflow, the flaps and louvres move in turn.
• “ ” or “
” disappears from the LCD.
13
 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.
• If the temperature does not reach the desired point, change the airflow rate setting.
• In DRY operation, the airflow rate setting is not variable.
NOTE
 Note on the angles of the flaps
• The flaps swinging range depends on the operation. (See the figure.)
COOL, DRY and
FAN operation
HEAT operation
Stop operation
Stop operation
25°
Upper limit / COMFORT AIRFLOW
50°
Lower limit
30°
75°
Upper limit
70°
Lower limit
COMFORT AIRFLOW
 Note on the angles of the flaps
• Using 3-D airflow circulates cold air, which tends to collect at the bottom of the room, and hot air, which tends to collect near the ceiling,
throughout the room, preventing areas of cold and hot developing.
 Notes on airflow rate setting
• At smaller airflow rates, the cooling (heating) effect is also smaller.
• If the air conditioner is operated in COOL or DRY operation with the flaps kept stopped in the downward direction, the flaps will automatically
start operating in approximately an hour in order to prevent dew condensation.
CAUTION
• Always use a remote controller to adjust the angles of the flaps and louvres.
- If you attempt to move the flaps and louvres forcibly by hand when they are swinging, the mechanism may be damaged.
- Inside the air outlet, a fan is rotating at a high speed.
14
English
Adjusting the Airflow Direction
and Rate
COMFORT AIRFLOW /
INTELLIGENT EYE Operation
 COMFORT AIRFLOW operation
The flow of air will be in the upward direction while in COOL operation and in the downward direction while
in HEAT operation, which will provide a comfortable wind that will not come in direct contact with people.
COOL operation
HEAT operation
 INTELLIGENT EYE operation
“INTELLIGENT EYE” is the infrared sensor which detects the human movement.
If no one is in the room for more than 20 minutes, the operation automatically changes to energy saving
operation. The INTELLIGENT EYE sensor works differently depending on the situation.
[Example]
 A person is detected in area 1.
Area 1
Area 2
 People are detected in both areas.
Area 1
 A person is detected in area 2.
Area 1
Area 2
 No people are detected in the areas.
Area 2
Use the INTELLIGENT EYE operation in
combination with the COMFORT AIRFLOW
operation.
The air conditioner will go into energy-saving
mode after 20 minutes.
*The airflow direction may differ from the
illustrated direction depending on the actions
and movements of the people in the areas.
INTELLIGENT EYE operation is useful for energy saving
 Energy saving operation
• If no presence detected in the room for 20 minutes, the energy saving operation will start.
• This operation changes the temperature –2°C in HEAT / +2°C in COOL / +2°C in DRY operation from set temperature.
When the room temperature exceeds 30°C, the operation changes the temperature +1°C in COOL / +1°C in DRY operation from set
temperature.
• This operation decreases the airflow rate slightly in FAN operation only.
 Combination of COMFORT AIRFLOW operation and INTELLIGENT EYE operation
The air conditioner can go into operation with the COMFORT AIRFLOW and INTELLIGENT EYE
operations combined.
15
English
COMFORT AIRFLOW /
INTELLIGENT EYE Operation
 To start operation
Press
and select the desired mode.
• Each time the
is pressed a different setting option is displayed on the LCD.
• The INTELLIGENT EYE lamp lights green.
Display
• By selecting “
” from the following icons, the air conditioner will be in COMFORT
AIRFLOW operation combined with INTELLIGENT EYE operation.
COMFORT
AIRFLOW
INTELLIGENT
EYE
Combination
blank
No Setting
• When the flaps (horizontal blades) are swinging, selecting any of the modes above
will stop the flaps (horizontal blades) from moving.
• The lamp will be lit while human movements are detected.
 To cancel operation
Press
and select “blank” on the LCD.
• The INTELLIGENT EYE lamp goes off.
Display
•
Blank
Operation mode
Explanation
COMFORT AIRFLOW
The flaps will adjust the airflow direction upward
while cooling, and adjust the airflow direction
downward while heating. Page 15
INTELLIGENT EYE
The sensor will detect the movement of people
in the sensing areas and the louvres will adjust
the airflow direction to an area where people are
not present. When there are no people in the
sensing areas, the air conditioner will go into
energy-saving mode. Page 15
COMFORT AIRFLOW and
INTELLIGENT EYE
The air conditioner will be in COMFORT
AIRFLOW operation combined with
INTELLIGENT EYE operation. Page 15
No function
−
16
COMFORT AIRFLOW /
INTELLIGENT EYE Operation
NOTE
 Notes on COMFORT AIRFLOW operation
• The position of the flaps will change, preventing air from blowing directly on the occupants of the room.
• POWERFUL operation and COMFORT AIRFLOW operation cannot be used at the same time.
Priority is given to the function of whichever button is pressed last.
• The airflow rate will be set to AUTO. If the up and down airflow direction is selected, the COMFORT AIRFLOW operation will be canceled.
 Notes on INTELLIGENT EYE operation
• Application range is as follows.
Vertical angle 90°
(Side view)
Horizontal angle 110°
(Top view)
7m
55° 55°
7m
90°
• While the air conditioner is in INTELLIGENT EYE operation, the louvres will adjust the airflow direction if there are people in the sensing
areas of the INTELLIGENT EYE so that the leftward or rightward airflow will not be directed to the people.
If no people are detected in either area 1 or 2 in 20 minutes, the air conditioner will go into energy-saving mode with the set temperature
shifted by 2°C.
The air conditioner may go into energy-saving operation even if there are people in the areas.
This may occur depending on the clothes the people are wearing if there are no movements of the people in the areas.
• The airflow direction from the louvres will be leftward if there are people in both areas 1 and 2. The air will also flow left when there is a
person right in front of the sensor as the sensor will judge that there are people in both areas.
• Due to the position of the sensor, people might be exposed to the airflow of the indoor unit if they are close to the front side of the indoor unit.
If there are people close to the front side of the indoor unit or in both areas, it is recommended to use the COMFORT AIRFLOW and
INTELLIGENT EYE operations simultaneously. When both of them are in use, the air conditioner will not direct the airflow towards the
people.
• Sensor may not detect moving objects further than 7m away. (Check the application range.)
• Sensor detection sensitivity changes according to indoor unit location, the speed of passersby, temperature range, etc.
• The sensor also mistakenly detects pets, sunlight, fluttering curtains and light reflected off of mirrors as passersby.
• INTELLIGENT EYE operation will not go on during POWERFUL operation.
• NIGHT SET mode
Page 21 will not go on during use of INTELLIGENT EYE operation.
 Notes on combination of COMFORT AIRFLOW operation and INTELLIGENT EYE operation
• The airflow rate will be set to AUTO. If the up and down airflow direction is selected, the COMFORT AIRFLOW operation will be canceled.
Priority is given to the function of whichever button is pressed last.
• When the INTELLIGENT EYE sensor detects the movement of people it adjusts the airflow direction upward (while in COOL operation) and
downward (while in HEAT operation), by adjusting the flaps. When the sensor detects people, the louvres will direct the airflow in such way
that it will not be blown directly on them. If there are no people, the air conditioner will go into energy-saving operation after 20 minutes.
CAUTION
• Do not place large objects near the INTELLIGENT EYE sensor.
Also keep heating units or humidifiers outside the sensor’s detection area. This sensor can detect undesirable objects.
• Do not hit or violently push the INTELLIGENT EYE sensor. This can lead to damage and malfunction.
17
English
POWERFUL Operation
POWERFUL operation quickly maximizes the cooling (heating) effect in any
operation mode. You can get the maximum capacity.
 To start POWERFUL operation
Press
during operation.
• POWERFUL operation ends in 20 minutes. Then the system automatically operates
again with the previous settings which were used before POWERFUL operation.
•“
” is displayed on the LCD.
 To cancel POWERFUL operation
Press
•“
again.
” disappears from the LCD.
[Example]
 Normal operation
• When you want to get the
cooling effect quickly, start
the POWERFUL operation.
 POWERFUL operation
• POWERFUL operation will
work for 20 minutes.
 Back to normal
operation
NOTE
 Notes on POWERFUL operation
• When using POWERFUL operation, there are some functions which are not available.
• POWERFUL operation cannot be used together with ECONO, COMFORT AIRFLOW or OUTDOOR UNIT QUIET operation.
Priority is given to the function of whichever button is pressed last.
• POWERFUL operation can only be set when the unit is running. Pressing
causes the settings to be canceled, and “
” disappears
from the LCD.
• POWERFUL operation will not increase the capacity of the air conditioner if the air conditioner is already in operation with its maximum
capacity demonstrated.
• In COOL and HEAT operation
To maximize the cooling (heating) effect, the capacity of outdoor unit is increased and the 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 maximize 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 29
18
ECONO / OUTDOOR UNIT
QUIET Operation
 ECONO operation
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.
[Example]
Normal operation
• In case the air conditioner and other appliances which
require high power consumption are used at the same
time, a circuit breaker may trip if the air conditioner
operates with its maximum capacity.
ECONO 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.
 OUTDOOR UNIT QUIET operation
OUTDOOR UNIT QUIET operation lowers the noise level of the outdoor unit by changing the frequency
and fan speed on the outdoor unit. This function is convenient during the night.
[Example]
Using the OUTDOOR UNIT QUIET operation during the night.
• The noise level of the
outdoor unit will be lower.
This function is useful
when you need to
consider the noise for
your neighbourhood.
19
English
ECONO / OUTDOOR UNIT
QUIET Operation
 To start operation
Press
and select the desired mode.
• Each time the
ECONO
is pressed a different setting option is displayed on the LCD.
OUTDOOR UNIT
QUIET
Combination
blank
No Setting
 To cancel operation
Press
and select “blank” on the LCD.
NOTE
 Notes on ECONO operation
• ECONO operation can only be set when the unit is running. Pressing
causes the settings to be canceled, and “
” disappears from the
LCD.
• ECONO operation is a function which enables efficient operation by limiting the power consumption of the outdoor unit (operating frequency).
• ECONO operation functions in AUTO, COOL, DRY, and HEAT operation.
• POWERFUL and ECONO operation cannot be used at the same time.
Priority is given to the function of whichever button is pressed last.
• If the level of power consumption is already low, ECONO operation will not drop the power consumption.
 Notes on OUTDOOR UNIT QUIET operation
• If using a multi system, the OUTDOOR UNIT QUIET operation will work only when this function is set on all operated indoor units. However,
if using priority room setting, refer to “Note for Multi System”. Page 29
• This function is available in COOL, HEAT, and AUTO operation.
This is not available in FAN and DRY operation.
• POWERFUL operation and OUTDOOR UNIT QUIET operation cannot be used at the same time.
Priority is given to the function of whichever button is pressed last.
• Even if the operation is stopped by using the remote controller or the indoor unit ON/OFF switch when using OUTDOOR UNIT QUIET
operation, “
” will remain on the remote controller display.
• OUTDOOR UNIT QUIET operation will drop neither the frequency nor fan speed if they have been already dropped low enough.
• This operation is performed with lower power and therefore may not provide a sufficient cooling (heating) effect.
20
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.
1. Press
.
• “
• “
•“
Page 10
” 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 multi-monitor lamp blinks twice.
The TIMER lamp periodically lights orange. 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
approx. 10 minutes)
 NIGHT SET mode
• When the OFF TIMER is set, the air conditioner automatically adjusts the temperature setting (0.5°C up in COOL, 2.0°C down in HEAT) to
prevent excessive cooling (heating) for your pleasant sleep.
21
English
ON TIMER Operation
 To use ON TIMER operation
• Check that the clock is correct.
If not, set the clock to the present time.
1. Press
.
• “
• “
•“
Page 10
” 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 setting rapidly.
3. Press
again.
•“
” and setting time are displayed on the LCD.
• The multi-monitor lamp blinks twice.
The TIMER lamp periodically lights orange. 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
Combined
ON TIMER at 14:00
NOTE
 In the following cases, set the timer again.
• After a circuit breaker has turned off.
• After a power failure.
• After replacing batteries in the remote controller.
22
WEEKLY TIMER Operation
Up to 4 timer settings can be saved for each day of the week. It is convenient if the WEEKLY TIMER is set
according to the family’s life style.
 Setting example of the WEEKLY TIMER
The same timer settings are made for the week from Monday through Friday while different timer settings are made for the
weekend.
[Monday]
Make timer settings up to programs 1-4.
Page 24
Program 1
Program 2
Program 3
Program 4
ON
OFF
ON
OFF
8:30
17:30
25°C
27°C
6:00
ON
[Tuesday]
to
[Friday]
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 26
Program 1
Program 2
Program 3
Program 4
ON
OFF
ON
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 24
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.
23
English
WEEKLY TIMER Operation
 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
ON
25°C
6:00
Program 4
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.
alternates the following items appearing on the LCD in rotational
Pressing
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.
24
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.
Page 12
Page 12
• 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 of the multi-monitor lamp.
• The temperature and time are set while in ON TIMER operation, and the time is set
while in OFF TIMER operation.
• The next reservation screen will appear.
• To continue further settings, repeat the procedure from step 4.
• The multi-monitor lamp blinks twice.
The TIMER lamp periodically lights orange. Page 5
The multi-monitor lamp will not blink orange if all the reservation settings are deleted.
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 26
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 off the circuit breaker, power failure, and other similar events will render operation of the indoor unit’s internal clock inaccurate.
Reset the clock. Page 10
25
English
WEEKLY TIMER Operation
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
OFF
[Monday]
COPY
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
25°C
6:00
Program 4
OFF
27°C
8:30
17:30
22:00
Setting Displays
Confirmation
Copy
Paste
Normal
1. Press
.
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 multi-monitor lamp.
• The reservation will be copied to the selected day of the week. The whole reservation
of the selected day of the week will be copied.
• To continue copying the settings to other days of the week, repeat step 4 and step 5.
• The multi-monitor lamp blinks twice. The TIMER lamp periodically lights orange.
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 24
26
WEEKLY TIMER Operation
 Confirming a reservation
• The reservation can be confirmed.
Setting Displays
Normal
Confirmation
1. Press
.
• 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 24
3. Press
to exit confirming mode.
 To deactivate WEEKLY TIMER operation
Press
the LCD.
while “
” is displayed on
• The “
” will disappear from the LCD.
• The TIMER lamp goes off.
• To reactivate the WEEKLY TIMER operation, press
• If a reservation deactivated with
mode will be used.
again.
is activated once again, the last reservation
CAUTION
• If not all the reservation settings are reflected, deactivate the WEEKLY TIMER operation once. Then press
WEEKLY TIMER operation.
27
again to reactivate the
English
WEEKLY TIMER Operation
 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.
• Selecting “blank” will cancel any reservation you may have.
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 confirming or setting reservations.
1. Press
to select the day of the week to be
deleted.
2. Hold
for about 5 seconds.
• The reservation of the selected day of the week will be deleted.
All reservations
Hold
for about 5 seconds while in normal display.
• Be sure to direct the remote controller toward the indoor unit and check for a receiving tone.
• This operation is not effective while WEEKLY TIMER is being set.
• All reservations will be deleted.
28
Note for Multi System
Multi system has one outdoor unit connected to multiple indoor units.
 Selecting the operation mode
When the priority room setting is active
but the set unit is not operating or when
the priority room setting is inactive
When more than one indoor unit is operating, priority is given to
the 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 multi-monitor
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.
• AUTO operation automatically selects COOL operation or HEAT operation based on the indoor temperature.
Therefore, AUTO operation is available when selecting the same operation mode as that of the room with the 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 operation in any room after this will give priority to HEAT operation. In
this situation, the air conditioner running in FAN operation will go on standby, and the multi-monitor lamp will flash.
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 19
When the priority room setting is active but the set unit is not operating or
when the priority room setting is inactive
When using the OUTDOOR UNIT QUIET operation feature with the multi system, set all indoor units to OUTDOOR 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.
When the priority room setting is active
Refer to “Priority room setting” on the next page.
29
English
Note for Multi System
 COOL/HEAT mode lock
The COOL/HEAT mode lock requires initial programming during installation. Please consult your authorized dealer for
assistance. The COOL/HEAT mode lock sets the unit forcibly to either COOL or HEAT operation. This function is convenient
when you wish to set all indoor units connected to the multi system to the same operation mode.
NOTE
• The COOL/HEAT mode lock cannot be activated together with the priority room setting.
 Priority room setting
The priority room setting requires initial programming during installation. Please consult your authorized dealer for assistance.
The room designated as the priority room takes priority in the following situations.
Operation mode priority
• As the operation mode of the priority room takes precedence, the user can select a different operation mode from other
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
Status of room B, C and D when the unit in room A is in COOL operation
Current operation mode maintained
HEAT
The unit enters standby mode. Operation resumes when the room A unit stops operating.
AUTO
If the unit is set to COOL operation, it continues. If the unit is set to HEAT operation, it enters
standby mode. Operation resumes when the room A unit stops operating.
Priority when POWERFUL operation is used
[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 OUTDOOR UNIT QUIET operation is used
[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.
30
Care and Cleaning
 Quick reference
How to open the upper front panel
• Hold the upper front panel by the sides and open it.
• Fix the panel with the panel support plate.
How to close the upper front panel
• Return the panel support plate to its previous position.
• Turn the unit ON/OFF to close the panels.
• See instructions in “Set the filters as they were and close
the upper front panel.” on Page 32 for a more detailed
description of closing the front panel.
Cleaning parts
Upper and lower
front panels
• With the panels closed, wipe
them with a soft damp cloth.
If bothered by dirt
Air filter
• Vacuum dust or wash the filter.
Once every 2 weeks
Page 32
Indoor unit and
remote controller
Titanium apatite deodorizing filter
• Vacuum dust or replace the filter.
[Cleaning]
• Wipe them with soft cloth.
[Replacement]
Once every 6 months
Once every 3 years
Page 33
Page 33
Notes on cleaning
 For cleaning, do not use the materials as follows.
• Hot water above 40°C.
• Benzine, gasoline, thinner, other volatile oils.
• Polishing compound.
• Scrubbing brushes, other hard stuff.
CAUTION
• Before cleaning, be sure to stop the operation and turn off the circuit breaker.
• Do not touch the aluminium fins of the indoor unit. If you touch those parts, this may cause an injury.
31
If bothered by dirt
English
Care and Cleaning
 Air filter
1. Pull out the air filters.
• Open the upper front panel.
• Set the panel support plate between the ribs on
the unit to fix the upper front panel.
• Push the filter tab at the center of each air filter a
little upwards, then pull it down.
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 deodorizing filter.
Refer to “Titanium apatite deodorizing filter” on the
next page.
3) Pull down
Back of the upper
front panel
Panel support plate
Filter tab
3. Set the filters as they were
and close the upper front
panel.
Ribs
1) Pull
2) Push
2. Wash the air filters with
water or clean them with
vacuum cleaner.
• It is recommended to clean the air filters every
2 weeks.
1) Close the upper
panel.
2) Do NOT push on the
front panel to close
it.
3) Turn ON the unit by
remocon. Wait till the
panels are
completely open.
Then, turn OFF the
unit by remocon
again.
4) Once the front
panels close
completely, gently
push the upper front
panel to hook it into
position.
1)
2)
3)
ON/OFF
4)
k”
“clic
“clic
k”
“click”
CAUTION
• Do not touch the aluminium fins by bare hand at the time of dismounting or mounting the filter.
32
Care and Cleaning
 Titanium apatite deodorizing filter
1. Take off the titanium
close the upper front panel.
apatite deodorizing filter.
• Open the upper front panel and pull out the air filters.
• Hold the recessed parts of the frame and unhook
the 4 claws.
Claw
2. Clean or replace the titanium
apatite deodorizing 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.
[Replacement]
Remove the filter from the filter
frame and attach a new one.
• Do not throw away the filter frame. Reuse the
filter frame when replacing the titanium apatite
deodorizing filter.
• When attaching the filter, check that the filter is
set in the tabs.
Tabs
• Dispose of the old filter as non-flammable waste.
3. Set the filters as they were and
33
1) Close the upper
panel.
2) Do NOT push on the
front panel to close
it.
3) Turn ON the unit by
remocon. Wait till the
panels are
completely open.
Then, turn OFF the
unit by remocon
again.
4) Once the front
panels close
completely, gently
push the upper front
panel to hook it into
position.
1)
2)
3)
ON/OFF
4)
k”
“clic
“clic
k”
“click”
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 deodorizing filter, contact the
service shop where you bought the air conditioner.
Item
Part No.
Titanium apatite deodorizing filter
(without frame) 1 set
KAF970A46
English
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 circuit 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 29
 We recommend periodical maintenance
• In certain operating conditions, the inside of the air conditioner may get foul after several seasons of use, resulting in poor
performance. It is recommended to have periodical maintenance by a specialist aside from regular cleaning by the user.
• For specialist maintenance, contact the service shop where you bought the air conditioner.
• The maintenance cost must be borne by the user.
Important information regarding the refrigerant used
This product contains fluorinated greenhouse gases. Do not vent gases into the atmosphere.
Refrigerant type: R410A
GWP (1) value: 2087.5
(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.
NOTICE regarding tCO2eq
In Europe, the greenhouse gas emissions of the total refrigerant charge in the system (expressed as tonnes CO2 -equivalent)
is used to determine the maintenance intervals. Follow the applicable legislation.
Formula to calculate the greenhouse gas emissions:
GWP value of the refrigerant × Total refrigerant charge [in kg] / 1000
34
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
The flaps do not start swinging
immediately.
• The air conditioner is adjusting the position of the
flaps. The flaps will start moving soon.
The air conditioner stops generating
airflow during operation.
• 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.
A sound is heard.
 A sound like a flow of water
• 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.
• This sound is generated when the flow of the
refrigerant in the air conditioner is switched over.
 Ticking sound
• This sound is generated when the size of the air conditioner
slightly expands or shrinks as a result of temperature changes.
 Whistling sound
• This sound is generated when refrigerant flows
during defrosting operation.
 Clicking sound during operation or idle time
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 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.
Outdoor unit
The outdoor unit emits water or steam.
 In HEAT operation
• The frost on the outdoor unit melts into water or steam when the air conditioner is
in defrost operation.
 In COOL or DRY operation
• Moisture in the air condenses into water on the cool surface of outdoor unit piping
and drips.
35
• Troubleshooting measures are classified into the following
2 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.
(Multi-monitor lamp is off.)
•
•
•
•
Has a circuit breaker turned off or a fuse blown?
Is it a power failure?
Are batteries set in the remote controller?
Is the timer setting correct?
Cooling (Heating) effect is poor.
• Are the air filters clean?
• Is there anything blocking the air inlet or the outlet of
the indoor and the outdoor units?
• Is the temperature setting appropriate?
• Are the windows and doors closed?
• Are the airflow rate and the airflow direction set
appropriately?
• Is the air conditioner in ECONO operation or
OUTDOOR UNIT QUIET operation?
English
Troubleshooting
Operation stopped suddenly.
(Multi-monitor lamp flashes.)
• Are the air filters clean?
Clean the air filters.
• Is there anything blocking the air inlet or the outlet of
the indoor and the outdoor units?
• Turn off the circuit breaker and take all obstacles away.
Then turn it on again and try operating the air conditioner
with the remote controller. If the lamp still 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 29
Upper and lower front panels do not
open. (Multi-monitor lamp flashes.)
• Is there something caught in the upper and lower front
panels?
Remove the object and attempt operation again using
the remote controller.
If the upper and lower front panels still do not open
and the multi-monitor lamp is still flashing,
consult the service shop where you bought
the air conditioner.
Upper front panel does not close
completely.
• Are the upper front panel locks set appropriately?
An abnormal functioning happens
during operation.
• The air conditioner may malfunction with lightning or
radio waves. Turn off the circuit breaker, turn it on
again and try operating the air conditioner with the
remote controller.
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.
36
Troubleshooting
Hot air does not flow out soon after
the start of HEAT operation.
The outdoor fan rotates while the
air conditioner is not in operation.
• The air conditioner is warming up. You should wait for
1 to 4 minutes. (The system is designed to start
discharging air only after it has reached a certain
temperature.)
 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 23
Operation stopped suddenly.
(Multi-monitor 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.
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.)
If the upper and lower front panels
are closed while the air conditioner is
in operation, the air conditioner will
stop operating and the multi-monitor
lamp will blink.
• Restart the air conditioner after stopping the operation
of the air conditioner with the remote controller.
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 “To set the
batteries” of this manual. Page 9
HEAT operation cannot be selected,
even though the unit is heat pump
model.
• Check that the jumper (J8) has not been cut. If it has
been cut, contact the service shop.
Jumper (J8)
37
English
Troubleshooting
 Call the service shop immediately
WARNING
 When an abnormality (such as a burning smell) occurs, stop operation and turn off the circuit breaker.
• Continued operation in an abnormal condition may result in troubles, electric shocks or 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 circuit breaker, a fuse, or the earth leakage circuit
breaker cuts off the operation frequently.
• A switch or a button often fails to work properly.
Turn off the circuit breaker and call the service
shop.
• 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 off the circuit breaker for system protection.
 Disposal requirements
Your product and the batteries supplied with the controller are marked with this symbol. This symbol means that
electrical and electronic products and batteries shall not be mixed with unsorted household waste.
For batteries, a chemical symbol can be printed beneath the symbol. This chemical symbol means that the
battery contains a heavy metal above a certain concentration. Possible chemical symbols are:
 Pb: lead (>0.004%)
Do not try to dismantle the system yourself: the dismantling of the product, treatment of the refrigerant, of oil and of other parts
must be done by a qualified installer in accordance with relevant local and national legislation.
Units and waste batteries must be treated at a specialized treatment facility for re-use, recycling and recovery.
By ensuring correct disposal, you will help to prevent potential negative consequences for the environment and human health.
Please contact the installer or local authority for more information.
38
Troubleshooting
 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 about 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
INDOOR
UNIT
OUTDOOR
UNIT
CODE
00
U0
U2
U4
A1
A5
A6
C4
C7
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
FREEZE-UP PROTECTION OR HEATING PEAK-CUT CONTROL
FAN MOTOR (DC MOTOR) ABNORMALITY
INDOOR HEAT EXCHANGER THERMISTOR ABNORMALITY
FRONT PANEL OPEN /CLOSE FAULT
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
39
for about 5 seconds. The code display also cancels itself if the button is not pressed for 1 minute.
English
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
• Turn off the power and then on again. If the LED display recurs, the outdoor unit PCB is faulty.
• Diagnosis marked
* Do not apply to some cases. For details, refer to the service guide.
40
Copyright 2014 Daikin
Quick Reference
3P357704-1D 2016.12