Daikin ATXB25C2V1B User manual

DAIKIN ROOM AIR CONDITIONER
OPERATION MANUAL
MODELS
ATXB25C2V1B
ATXB35C2V1B

1
CONTENTS
READ BEFORE OPERATION
Safety Precautions ......................................... 2
Names of Parts............................................... 4
Preparation before Operation......................... 7
OPERATION
AUTO · DRY · COOL · HEAT ·
FAN Operation................................................ 9
Adjusting the Airow Direction...................... 11
COMFORT AIRFLOW Operation ................. 13
POWERFUL Operation ................................ 14
ECONO Operation........................................ 15
OFF TIMER Operation ................................. 16
ON TIMER Operation ................................... 17
CARE
Care and Cleaning........................................ 18
TROUBLESHOOTING
Troubleshooting............................................ 22

2
Safety Precautions
• Keep this manual where the operator can easily nd them.
• Read this manual attentively before starting up the unit.
• For safety reason the operator must read the following cautions carefully.
• This manual classies precautions into WARNINGS and CAUTIONS. Be sure to follow all
precautions below: they are all important for ensuring safety.
• The English text is the original instruction. Other languages are translations of the original
instructions.
WARNING CAUTION
If you do not follow these instructions exactly, the
unit may cause property damage, personal injury
or loss of life.
If you do not follow these instructions exactly, the
unit may cause minor or moderate property
damage or personal injury.
Never do. Be sure to follow the instructions.
Be sure to earth the air conditioner. Never cause the air conditioner (including
the remote controller) to get wet.
Never touch the air conditioner (including
the remote controller) with a wet hand.
WARNING
• In order to avoid re, explosion or injury, do not operate the unit when harmful gases (e.g. ammable
or corrosive) are detected near the unit.
• It is not good for health to expose your body to the air ow for a long time.
• Do not put a nger, a rod or other objects into the air outlet or inlet. As the fan is rotating at a high
speed, it will cause injury.
• Do not attempt to repair, relocate, modify or reinstall the air conditioner by yourself. Incorrect work
will cause electric shocks, re etc.
• For repairs and reinstallation, consult your Daikin dealer for advice and information.
• The refrigerant used in the air conditioner is safe. Although leaks should not occur, if for some reason any
refrigerant happens to leak into the room, make sure it does not come in contact with any ame as of gas
heaters, kerosene heaters or gas range.
•If the air conditioner is not cooling (heating) properly, the refrigerant may be leaking, so call your dealer.
When carrying out repairs accompanying adding refrigerant, check the content of the repairs with our service staff.
•Do not attempt to install the air conditioner by yourself. Incorrect work will result in water leakage, electric shocks or
re.
For installation, consult the dealer or a qualied technician.
•In order to avoid electric shock, re or injury, if you detect any abnormality such as smell of re, stop the operation and
turn off the breaker. And call your dealer for instructions.
• Depending on the environment, an earth leakage breaker must be installed. Lack of an earth leakage breaker may
result in electric shocks or re.
• 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, lightning rod, or a telephone earth line.
CAUTION
• In order to avoid any quality deterioration, do not use the unit for cooling precision
instruments, food, plants, animals or works of art.
•Never expose little children, plants or animals directly to the air ow.
• Do not place appliances which produce open re in places exposed to the air ow from the unit

3
or under the indoor unit. It may cause incomplete combustion or deformation of the unit due to the
heat.
• Do not block air inlets nor outlets. Impaired air ow may result in insufcient performance or trouble.
• Do not stand or sit on the outdoor unit. Do not place any object on the unit to avoid injury, do not
remove the fan guard.
• Do not place anything under the indoor or outdoor unit that must be kept away from moisture. In
certain conditions, moisture in the air may condense and drip.
• After a long use, check the unit stand and ttings for damage.
• Do not touch the air inlet and aluminium ns of outdoor unit. It may cause injury.
• The appliance is not intended for use by young children or inrm persons without supervision.
• Young children should be supervised to ensure that they do not play with the appliance.
• 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).
• To avoid oxygen deciency, ventilate the room sufciently if equipment with burner is used
together with the air conditioner.
• Before cleaning, be sure to stop the operation, turn the breaker off or pull out the supply cord.
• Do not connect the air conditioner to a power supply different from the one as specied. It
may cause trouble or re.
• Arrange the drain hose to ensure smooth drainage. Incomplete draining 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 re when making contact with electrical parts.
• Do not operate the air conditioner with wet hands.
• Do not wash the indoor unit with excessive water, only use a slightly wet cloth.
• Do not place things such as vessels containing water or anything else on top of the unit. Water
may penetrate into the unit and degrade electrical insulations, resulting in an electric shock.
Installation site.
To install the air conditioner in the following types of environments, consult the dealer.
• Places with an oily environment or where steam or soot occurs.
• Salty environment such as coastal areas.
• Places where sulde gas occurs such as hot springs.
• Places where snow may block the outdoor unit.
The drain from the outdoor unit must be discharged to a place of good drainage.
Consider nuisance to your neighbours from noises.
For installation, choose a place as described below.
• A place solid enough to bear the weight of the unit which does not amplify the operation noise or vibration.
• A place from where the air discharged from the outdoor unit or the operation noise will not annoy your neighbours.
Electrical work.
• For power supply, be sure to use a separate power circuit dedicated to the air conditioner.
System relocation.
• Relocating the air conditioner requires specialised knowledge and skills. Please consult the dealer
if relocation is necessary for moving or remodeling.

4
Names of Parts
Indoor Unit

5
Outdoor Unit
• Appearance of the outdoor unit may differ from some models.
Indoor Unit
1a. Air lter
1b. Titanium apatite photocatalytic air-
purifying lter:
• These lters are attached to the inside of
the air lters.
2. Model name plate
3. Air inlet
4. Front panel
5. Panel tab
6. Room temperature sensor:
• It senses the air temperature around the
unit.
7. Display
8. Air outlet
9. Flap (horizontal blade): (page 11)
10. Louvers (vertical blades):
• The louvers are inside of the air outlet.
(page 12)
11. Signal receiver:
•
It receives signals from the remote controller.
• When the unit receives a signal, you will
hear a beep sound.
• Operation start .............beep-beep
• Settings changed .........beep
• Operation stop .............long beep
12. OPERATION lamp (green)
13. TIMER lamp (yellow): (page 16)
14. Indoor unit ON/OFF switch:
• Press this switch once to start operation.
Press once again to stop it.
• The operation mode refers to the following
table.
Mode Temperature
setting Airow rate
AUTO 25°C AUTO
• This switch is useful when the remote
controller is missing
Outdoor Unit
15. Air inlet (back and side)
16. Air outlet
17. Refrigerant piping and inter-unit wiring
18. Drain hose
19. Earth terminal:
• It is inside of this cover.

6
Names of Parts
Remote Controller
1
6
2
13
9
8
5
11
4
3
7
12
10
<ARC470A1>
1. Signal transmitter:
• It sends signals to the indoor unit.
2. Display (LCD):
• It displays the current settings.
(In this illustration, each section is shown
with its displays on for the purpose of
explanation.)
3. ECONO button:
ECONO operation (page 15)
4. POWERFUL button:
POWERFUL operation (page 14)
5. TEMPERATURE adjustment button:
• It changes the temperature setting.
6. ON/OFF button:
• Press this button once to start operation.
Press once again to stop it.
7. MODE selector button:
• It selects the operation mode.
(AUTO/DRY/COOL/HEAT/FAN) (page 9)
8. FAN setting button:
• It selects the airow rate setting.
9. SWING button:
• Adjusting the airow direction. (page 11)
10. COMFORT AIRFLOW button:
COMFORT AIRFLOW operation (page 13)
11. ON TIMER button: (page 17)
12. OFF TIMER button: (page 16)
13. TIMER CANCEL button:
• It cancels the timer setting.

7
Preparation before Operation
To set the batteries
1. Remove the back cover by sliding
and then slightly lifting it.
2. Set two dry batteries AAA.LR03
(alkaline).
3. Return the back cover to the
previous position.
2
3
1
Position and
correctly!
To operate the remote controller
• To use the remote controller, aim the transmitter at the
indoor unit. If there is anything to block signals between the
unit and the remote controller, such as a curtain, the unit will
not operate.
• Do not drop the remote controller. Do not get it wet.
• The maximum distance for communication is approximately
7m.
Receiver
To x the remote controller holder
on the wall
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. Hang the remote controller on the remote
controller holder.
Remote controller
Remote
controller
holder
Screws
NOTE
Notes on batteries
•
When replacing the batteries, use batteries of the same type, and replace both old batteries together.
• When the system is not used for a long time, take the batteries out.
• The batteries will last for approximately 1 year. If the remote controller display begins to fade
and the degradation of reception performance occurs within a year, however, replace both
batteries with new, size AAA.LR03 (alkaline).
• The attached batteries are provided for the initial use of the system.
The usable period of the batteries may be short depending on the manufactured date of the
air conditioner.
Notes on remote controller
• Never expose the remote controller to direct sunlight.
•
Dust on the signal transmitter or receiver will reduce the sensitivity. Wipe off dust with soft cloth.
• Signal communication may be disabled if an electronic-starter-type uorescent lamp (such
as inverter-type lamps) is in the room. Consult the shop if that is the case.
• If the remote controller signals happen to operate another appliance, move that appliance to
somewhere else, or consult the shop.

8
Preparation before Operation
Turn the breaker on
• After the power is turned on, the ap of the indoor unit opens and closes once to set the
reference position.
NOTE
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.
Recommended temperature setting
For cooling: 26 – 28°C
For heating: 20 – 24°C
• Clogged air lters cause inefcient operation and waste energy. Clean them once in about
every 2 weeks.
Please note
• The air conditioner always consumes 15 – 35W of electricity even while it is not operating.
• If you are not going to use the air conditioner for a long period, for example in spring or
autumn, turn the breaker off.
• Use the air conditioner in the following conditions.
Mode Operating conditions If operation is continued out of this range
COOL Outdoor temperature: -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.
HEAT Outdoor temperature: -15 – 24°C
Indoor temperature: 10 – 30°C
• A safety device may work to stop the operation.
DRY Outdoor temperature: -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.
• Operation outside this humidity or temperature range may cause a safety device to disable
the system.

9
AUTO · DRY · COOL · HEAT · FAN Operation
The air conditioner operates with the operation mode of your choice.
From the next time on, the air conditioner will operate with the same
operation mode.
To start operation
1. Press and select a operation mode.
• Each pressing of the button advances the mode setting in
sequence.
: AUTO : HEAT
: DRY : FAN
: COOL
2. Press .
• “ ” is displayed on the LCD.
• The OPERATION lamp lights up.
To stop operation
3. Press again.
• “ ” disappears from the LCD.
• Then OPERATION lamp goes off.
To change the temperature setting
4. Press .
AUTO or COOL or HEAT operation DRY or FAN operation
Press to raise the temperature and
press to lower the temperature.
The temperature setting is not variable.
Set to the temperature you like.

10
AUTO · DRY · COOL · HEAT · FAN Operation
To change the airow rate setting
5. Press .
AUTO or COOL or HEAT or FAN operation DRY operation
5 levels of airow rate setting
from “ ” to “ ” plus “ ”
“ ” are available.
The airow rate setting is not variable.
• Indoor unit quiet operation
When the airow is set to “ ”, the noise from the indoor unit will become quieter.
Use this when making the noise quieter.
NOTE
Notes on HEAT operation
• Since this air conditioner heats the room by taking heat from outdoor air to indoors, the
heating capacity becomes smaller in lower outdoor temperatures. If the heating effect is
insufcient, it is recommended to use another heating appliance in combination with the air
conditioner.
• The heat pump system heats the room by circulating hot air around all parts of the room.
After the start of HEAT operation, it takes some time before the room gets warmer.
• In HEAT operation, frost may occur on the outdoor unit and lower the heating capacity. In
that case, the system switches into defrosting operation to take away the frost.
• During defrosting operation, hot air does not ow out of indoor unit.
• A pinging sound may be heard during defrosting operation, which, however does not mean
that the air conditioner has failures.
Note on COOL operation
• 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.
Note on DRY operation
• The computer chip works to rid the room of humidity while maintaining the temperature as
much as possible. It automatically controls temperature and airow rate, so manual
adjustment of these functions is unavailable.
Notes on AUTO operation
• In AUTO operation, the system selects an appropriate operation mode (COOL or HEAT)
based on the room and outside temperatures and starts the operation.
• The system automatically reselects setting at a regular interval to bring the room
temperature to user-setting level.
Note on FAN operation
• This mode is valid for fan only.
Note on airow rate setting
• At smaller airow rates, the cooling (heating) effect is also smaller.

11
Adjusting the Airow Direction
You can adjust the airow direction to increase your comfort.
To start auto swing
Upper and lower airow direction
Press .
• “ ” is displayed on the LCD.
• The ap (horizontal blade) will begin to swing.
To set the ap at desired position
• This function is effective while ap is in auto swing mode.
Press when the ap has reached the
desired position.
• The ap will stop moving.
• “ ” disappears from the LCD.

12
Adjusting the Airow Direction
To adjust the louvers (vertical
blades)
Hold the knob and move the louvers.
(You will nd a knob on the left-side and the right-side
blades.)
• When the unit is installed in the corner of a room, the
direction of the louvers should be facing away from the
wall.
If they face the wall, the wall will block off the wind,
causing the cooling (or heating) efciency to drop.
CAUTION
• Always use a remote controller to adjust the angles of the ap. If you attempt to move the ap
and louvers forcibly with hand when they are swinging, the mechanism may be broken.
• Be careful when adjusting the louvers. Inside the air outlet, a fan is rotating at a high speed.
NOTE
Notes on the angles of the ap
• The ap swinging range depends on the
operation. (See the gure.)
• If the air conditioner is operated in HEAT
or DRY operation with the ap kept
stopped in the downward direction, the
ap will automatically start operating in
approximately an hour in order to prevent
dew condensation.
In DRY operation or COOL operation
45°
5°
0°
COMFORT AIRFLOW
Upper limit
Lower limit
Stop operation
In HEAT operation
15°
45° 50°
0°
Upper limit
Lower limit
Stop operation
COMFORT AIRFLOW
In FAN operation
45°
5°
0°
Upper limit
Lower limit
Stop operation

13
COMFORT AIRFLOW Operation
The ow of air will be in the upward direction while in COOL
operation and in the downward direction while in HEAT operation,
which will provide a comfortable wind that will not come in direct
contact with people.
To start COMFORT AIRFLOW
operation
1. Press .
• The ap position will change, preventing air from blowing
directly on the occupants of the room.
• “ ” is displayed on the LCD.
• Airow rate is set to Auto.
COOL/DRY: The ap will go up.
HEAT: The ap will go down.
To cancel COMFORT AIRFLOW
operation
2. Press again.
• The ap will return to the memory position from before
COMFORT AIRFLOW mode.
• “ ” disappears from the LCD.
COOL operation HEAT operation
NOTE
Notes on COMFORT AIRFLOW operation
• The ap position 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 airow rate will be set to Auto. If the upper and lower airow direction is selected, the
COMFORT AIRFLOW operation will be canceled.

14
POWERFUL Operation
POWERFUL operation quickly maximises the cooling (heating) effect
in any operation mode. You can get the maximum capacity.
To start POWERFUL operation
1. Press .
• 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
2. Press again.
• “ ” disappears from the LCD.
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 or COMFORT AIRFLOW
operation.
Priority is given to the function of whichever button is pressed last.
• POWERFUL operation can only be set when the unit is running.
• POWERFUL operation will not increase the capacity of the air conditioner if the air
conditioner is already in operation with its maximum capacity demonstrated.
• In COOL, HEAT and AUTO operation
To maximise the cooling (heating) effect, the capacity of outdoor unit is increased and the
airow rate is xed to the maximum setting.
The temperature and airow settings are not variable.
• In DRY operation
The temperature setting is lowered by 2.5°C and the airow rate is slightly increased.
• In FAN operation
The airow rate is xed to the maximum setting.

15
ECONO Operation
ECONO operation is a function which enables efcient 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.
To start ECONO operation
1. Press .
• “ ” is displayed on the LCD.
To cancel ECONO operation
2. Press again.
• “ ” disappears from the LCD.
Running current and
power consumption
Maximum during
normal operation
Time
Maximum during
ECONO operation
From start up until set
temperature is reached
Normal
operation
ECONO
operation
• This diagram is a representation for illustrative purposes only.
* The maximum running current and power consumption of the air conditioner in ECONO
operation vary with the connecting outdoor unit.
NOTE
Notes on ECONO operation
• ECONO operation can only be set when the unit is running.
• ECONO operation is a function which enables efcient operation by limiting the power
consumption of the outdoor unit (operating frequency).
• ECONO operation functions in AUTO, COOL, DRY and HEAT operation.
• POWERFUL and ECONO operation cannot be used at the same time.
Priority is given to the function of whichever button is pressed last.
• If the level of power consumption is already low, ECONO operation will not drop the power
consumption.

16
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
1. Press .
“ ” is displayed on the LCD.
Each pressing of advances the time setting by
1 hour.
The time can be set between 1 to 9 hours.
• The TIMER lamp lights up.
To cancel OFF TIMER operation
2. Press .
• “ ” disappears from the LCD.
• The TIMER lamp goes off.
NOTE
Note on TIMER operation
• Once you set ON/OFF TIMER, the time setting is kept in the memory. The memory is
canceled when remote controller batteries are replaced.
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.

17
ON TIMER Operation
To use ON TIMER operation
1. Press .
“ ” is displayed on the LCD.
Each pressing of advances the time setting by 1 hour.
The time can be set between 1 to 12 hours.
• The TIMER lamp lights up.
To cancel ON TIMER operation
2. Press .
• “ ” disappears from the LCD.
• The TIMER lamp goes off.
To combine ON TIMER and OFF TIMER
• A sample setting for combining the 2 timers is shown below.
• “ ” and “ ” are displayed on the LCD.
Display
NOTE
In the following cases, set the timer again.
• After a breaker has turned off.
• After a power failure.
• After replacing batteries in the remote controller.

18
Care and Cleaning
CAUTION Before cleaning, be sure to stop the operation and
turn the breaker off.
Units
Indoor unit and remote controller
1. Wipe them with dry soft cloth.
Front panel
1. Open the front panel.
• Hold the front panel by the panel tabs
on the both sides and open it.
Panel tab
2. Remove the front panel.
• Slide the front panel to either the left or
right and pulling it toward you.
This will disconnect the front panel
shaft on one side.
• Disconnect the front panel shaft on the
other side in the same manner.
Front
panel shaft
3. Clean the front panel.
• Wipe it with a soft cloth soaked in water.
• Only neutral detergent may be used.
• In case of washing the panel with water, wipe it with dry soft cloth, dry it up in the shade
after washing.
4. Attach the front panel.
• Align the front panel shaft on the left
and right of the front panel with the
slots, then push them all the way in.
• Close the front panel slowly.
(Press the panel at both sides and the
center.)
CAUTION
• Don’t touch the metal parts of the indoor unit. If you touch those parts, this may cause an
injury.
• When removing or attaching the front panel, use a robust and stable stool and watch your
steps carefully.
• When removing or attaching the front panel, support the panel securely with hand to prevent it
from falling.
• For cleaning, do not use hot water above 40°C, benzine, gasoline, thinner, nor other volatile
oils, polishing compound, scrubbing brushes, nor other hand stuff.
• After cleaning, make sure that the front panel is securely xed.