Daikin ATXS35K2V1B, ATXS50K2V1B, ATXS35K3V1B, ATXS50K3V1B Operation manuals

DAIKIN ROOM AIR CONDITIONER

MODELS ATXS20K2V1B

Operation Manual

ATXS25K2V1B
ATXS20K3V1B
ATXS25K3V1B

English

Deutsch

Français

Nederlands

Español

Italiano

Portugues

Pyccкий

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

COMFORT AIRFLOW

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.

1

►Page 15 ►Page 19

OUTDOOR UNIT QUIET

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.

Contents

■ Read before Operation

Safety Precautions .............................3

Name of Parts ..................................5

Preparation before Operation.................9

■ Operation

AUTO · DRY · COOL · HEAT · FAN

Operation...............................11

Adjusting the Airflow Direction

and Rate................................13

COMFORT AIRFLOW Operation....15

INTELLIGENT EYE Operation....... 16

POWERFUL Operation...............18

OUTDOOR UNIT QUIET

Operation...............................19

ECONO Operation ....................20

OFF TIMER Operation................21

ON TIMER Operation.................22

WEEKLY TIMER Operation.......... 23

■ Multi Connection

Note for Multi System........................29

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

■ Care

Care and Cleaning ...........................31

■ Troubleshooting

Troubleshooting ..............................36

The English text is the original instruction. Other languages are
translations of the original instructions.

2

Safety Precautions

• Keep this manual where the operator can easil y find it.

• Read the precautions in this manual carefully before operating the unit.

• The precautions described herein are classified as WARNING and CAUTION. They both contain important information regarding
safety. Be sure to observe all precautions without fail.

WARNING CAUTION

Failure to follow these instructions properly may result in
personal injury or loss of life.

Never attempt. Never wet the air conditioner nor the remote controller with water.

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.

Failure to observe these instructions properly may result in
property damage or personal injury, which may be serious
depending on the circumstances.

Never touch the air conditioner nor the remote controller with wet
hands.

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.

• Beware of fire in case of refrigerant leakage. If the air conditioner is not operating correctly, i.e. no t generating cool or
warm air, refrigerant leakage could be the cause. Consult your dealer for assistance. The refrigerant within the air
conditioner is safe and normally does not leak.
However, in the event of a leakage, contact with a naked burner, heater or cooker may result in generation of noxious
gas. Do not longer use the air conditioner until a qualified service person confirms that the leakage has been repaired.

• Do not attempt to install or repair the air conditioner yourself. Improper workmanship may result in water leakage, electric
shocks or fire hazards. Please contact your local dealer or qualified personnel for installation and maintenance work.

• When the air conditi oner 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 fa ilure, electric shocks or fire hazards.

• Be sure to install an earth leakage breaker. Failure to install the earth leakage breaker may result in electric shocks or fire.

• 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.

3

CAUTION

• Do not use the air conditioner for purposes other than those for which it is intended. Do not use the air conditioner for
cooling precision instruments, food, plants, animals or works of art as this may adversely affect the performance, quality
and/or longevity of the object concerned.

• Do not expose plants or animals directly to airflow from the unit as this may cause adverse effects.

• Do not place appliances that produce naked flames in places exposed to the airflow from the unit as this may impair
combustion of the burner.

• Do not block air inlets nor outlets. Impaired airflow may result in insufficient performance or trouble.

• Do not sit on the outdoor unit, put things on the unit, or pull the unit. Doin g so may cause accidents, such as falling or
toppling down, thus resulting in injury, product malfunctioning, or product damage.

• 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.

Safety Precautions

CAUTION

• Do not place objects that are susceptible to moisture directly beneath the indoor or outdoor units. Und er 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 damage d cond ition, the unit ma y
fall and cause injury.

• To avoid injury, do not touch the air inlet or aluminium fins of the indoor or outdoor units.

• Do not give impact to the indoor and outdoor units, or otherwise product damage may result.

• Do not place flammable items, such as spray cans, within 1m of the air outlet.
The spray cans may explode as a result of hot air from the indoor or outdoor units.

• Be careful not to let pets urinate on the air conditioner. Urination on the air conditioner may result in electric shocks or fire.

• To avoid oxygen depletion, ensure that the room is adequately ventilated if equipment such as a burner is used together
with the air conditioner.

• Before cleaning, be sure to stop unit operation, turn the breaker off or remove the power cord. Otherwise, an electric
shock and injury may result.

• Only connect the air conditioner to the specified power supply circuit. Power supplies other than the one specified may
result in electric shocks, overheating and fires.

• Arrange the drain hose to ensure smooth drainage. Imperfect drainage may cause wetting of the building, furniture etc.

• Do not place objects in direct proximity of the outdoor unit and do not let leaves and other debris accumulate around
the unit. Leaves are a hotbed for small animals which can enter the unit. Once in the unit, such animals can cause
malfunctions, smoke or fire when making contact with electrical parts.

• Do not place objects around the indoor unit.
Doing so may have an adverse influence on the performance, product quality, and life of the air conditioner.

• This appliance 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.

• Sound pressure level is less th an 70 dB (A).

• To avoid electric shocks, do not operate with wet hands.

• Do not wash the air conditioner with water, as this may result in electric shocks or fire.

• Do not place water containers (vases etc.) above the unit, as this may result in electric shocks or fire hazards.

Installation site.

■ To install the air conditioner in the following types of environments, consult the dealer.

• Places with an oily ambient or where steam or soot occurs.

• Salty environment such as coastal areas.

• Places where sulfide gas occurs such as hot springs.

• Places where snow may block the outdoo r unit.

• The indoor unit is at least 1m away from any television or radio set (unit may cause interference with the picture or sound).

• The drain from the outdoor unit must be discharged to a place of good drainage.

Consider nuisance to your neighbours from noises.

■ For installation, choose a place as described below.

• A place solid enough to bear the weight of the unit which does not amplify the operation noise or vibration.

• A place from where the air discharged from the outdoor unit or the operation noise will not annoy your neighbours.

Electrical work.

• For power supply, be sure to use a separate power circuit dedicated to the air conditioner.

System relocation.

• Relocating the air conditioner requires specialized knowledge and skills. Please consult the dealer if relocation is necessary
for moving or remodeling.

4

Indoor Unit

Room temperature
sensor

• It detects the air temperature
around the unit.

INTELLIGENT EYE
sensor

• It detects the movements of
people and automatically
switches between normal
operation and energy saving
operation.

►Page 15

Model name
plate

Louvers (vertical blades)

• The louvers are inside of the air outlet. ►Page 13

Flap (horizontal blade) ►Page 13

Air oulet

Front panel

Air inlet

Display

OPERATION lamp
(green)

TIMER lamp (yellow)

INTELLIGENT EYE lamp
(green)

►Page 16

Indoor unit ON/OFF switch

• Press this switch once to start operation.
Press once again to stop it.

• For the operation mode setting, refer to the following table.

• This switch can be used when the remote controller is missing.

Mode Temperature setting Airflow rate

AUTO 25°C AUTO

Signal receiver

• It receives signals from the remote
controller.

• When the unit receives a signal, you will
hear a beep sound.

Case Sound type

Operation start beep-beep

Setting changed beep

Operation stop long beep

►Page 21

Name of Parts

5

Air filter

Titanium apatite
deodorizing filter

Outdoor temperature
sensor (back)

Drain hose

Earth terminal

• It is inside of this cover.

Model name plate

Refrigerant piping and
inter-unit wiring

Air inlet

(back and side)

Air outlet

• Appearance of the outdoor unit may di ffer from some models.

Name of Parts

■ Open the front panel

Outdoor Unit

6

Remote Controller

ARC466A6

Signal transmitter

• 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 di stance for
communication is approx. 7m.

Receiver

FAN setting button

• It selects the airflow rate setting.

POWERFUL button

• POWERFUL operation.

Front cover

• Open the front cover.

ON/OFF button

• Press this button once to start
operation.
Press once again to stop it.

TEMPERATURE
adjustment buttons

• It changes the temperature setting.

Display (LCD)

• It displays the current settings.
(In this illustration, each section is
shown with its displays on for the
purpose of explanation.)

Model

►Page 14

►Page 18

►Page 8

►Page 11

►Page 12

Name of Parts

7

MODE selector button

• It selects the operation mode.
(AUTO/DRY/COOL/HEAT/
FAN)

►Page 11

ECONO button

• ECONO operation. ►Page 20

SWING button

• Adjusting the airflow direction.

ON TIMER button

CLOCK button ►Page 10

: WEEKLY button

: PROGRAM button

: COPY button

: BACK button

: NEXT button

• WEEKLY TIMER operation.

COMFORT button

• COMFORT AIRFLOW
operation.

►Page 15

OFF TIMER button

TIMER CANCEL
button

• It cancels the timer setting.

• It cannot be used for the
WEEKLY TIMER operation.

SELECT button

It changes the ON/OFF
TIMER and WEEKLY TIMER
settings. ►Page 21, 22, 23

►Page 21

►Page 21, 22

►Page 22

►Page 23

►Page 13

QUIET button

• OUTDOOR UNIT QUIET
operation.

►Page 19

INTELLIGENT EYE
button

• INTELLIGENT EYE
operation. ►Page 16

Name of Parts

■ Open the front cover

8

Remote controller

Screws

Remote
controller holder

Preparation before Operation

■ To set the batteries

Position and
correctly!

1.Slide the front cover to take it off.

2.Set two dry batteries AAA.LR03 (alkaline).

3.Set the front cover as before.

■ To fix the remote controller holder on the wall

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.

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

• The attached batteries are provided for the initial use of the system.

■ 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

• If the remote controller signals happen to operate another appliance, move that appliance to somewhere else, or consult the service shop.

3.Place the remote controller in the remote

controller holder.

within a year, however, replace both batteries with new, size AAA.LR03 (alkaline).

The usable period of the batteries may be short depending on the manufactured date of the air conditioner.

shop if that is the case.

9

Preparation before Operation

■ Turn the breaker on

• 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 .

• “ ” blinks.

4.Press to set the clock to the present time.

• Holding down or rapidly increases or decreases the time display.

5.Press .

• 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

The air conditioner operates with the operation mode of your choice.

Display

AUTO · DRY · COOL · HEAT · FAN Operation

From the next time on, the air conditioner will operate with the same operation mode.

■ To start operation

1.Press and select an operation mode.

• Each pressing of the button advances the mode setting in sequence.

AUTO DRY COOL HEAT FAN

2.Press .

• “ ” is displayed on the LCD.

• The OPERATION lamp lights green.

■ To stop operation

Press again.

• “ ” disappears from the LCD.

• The OPERATION lamp goes off.

NOTE

MODE 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.

HEAT

COOL

DRY

AUTO

FAN • This mode is valid for fan only.

• 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 room temperature to user-setting level.

11

COOL operation HEAT operation AUTO operation DRY or FAN operation

18-32°C 10-30°C 18-30°C

The temperature setting is not
variable

Press to raise the temperature and press to lower the
temperature.

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.

■ Operating conditions

■ Recom mended temperature setting

• For cooling: 26-28°C

• For heating: 20-24°C

■ Tips for sa ving 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 o perating conditions

• The air conditioner always consumes a small amount of electricity even while it is not operating.
Connecting outdoor unit RXS20/25: 1-15W
Other outdoor units: 15-20W
The outdoor unit consumes 40 to 55W of power at the time of compressor preheating.

• If you are not going to use the air conditioner for a long period, for example in spring or autumn, turn the breaker off.

• Use the air conditioner in the following conditions.

MODE Operating conditions If operation is continued out of this range

Outdoor temperature: 10-46°C

COOL

HEAT

DRY

• Operation outside this humidity or temperature range may cause a safety device to disable the system.

Indoor temperature: 18-32°C
Indoor humidity: 80% max.

Outdoor temperature: –15-24°C
Indoor temperature: 10-30°C

Outdoor temperature: 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.

• A safety device may work to stop the operation.

• Condensation may occur on the indoor unit and drip.

12

You can adjust the airflow direction to increase your comfort.

Up and down airflow direction

Adjusting the Airflow Direction and Rate

■ To start auto swing

Press .

• “ ” is displayed on the LCD.

• The flap (horizontal blade) will begin to swing.

■ To set the flap at desired position

• This function is effective while flap is in auto swing mode.

Press when the flap has reached the
desired position.

• “ ” disappears from the LCD.

■ To adjust the louvers at desired position

Hold the knob and move the louvers.

• You will find a knob on the left-side and the right-side
blades.

• When the unit is installed in the corner of a room, the
direction of the louvers (vertical blades) should be facing
away from the wall.
If they face the wall, the wall will block off the wind,
causing the cooling (or heating) efficiency to drop.

• If the flap is in the way, press on the remote controller to move the flap out of the
way and then adjust the louvers.

13