Daikin FTXTP25M5V1B Product information sheet

User reference guide
Daikin room air conditioners
FTXTP25M5V1B
FTXTP35M5V1B

Table of contents
User reference guide
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FTXTP25+35M5V1B
Daikin room air conditioners
4D520466-11E – 2021.03
Table of contents
1 About the documentation 4
1.1 About this document ...................................................................................................................................................... 4
1.2 Meaning of warnings and symbols................................................................................................................................. 4
2 User safety instructions 6
2.1 General............................................................................................................................................................................ 6
2.2 Instructions for safe operation ....................................................................................................................................... 7
3 About the system 11
3.1 Indoor unit ...................................................................................................................................................................... 11
3.1.1 Indoor unit display.......................................................................................................................................... 12
3.2 About the user interface................................................................................................................................................. 12
3.2.1 Components: User interface .......................................................................................................................... 13
3.2.2 Status: User interface LCD.............................................................................................................................. 13
3.2.3 To operate the user interface ........................................................................................................................ 14
4 Before operation 15
4.1 Overview: Before operation ........................................................................................................................................... 15
4.2 To insert the batteries .................................................................................................................................................... 15
4.3 To mount the user interface holder ............................................................................................................................... 15
4.4 To turn on the power supply .......................................................................................................................................... 16
5 Operation 17
5.1 Operation range.............................................................................................................................................................. 17
5.2 When to use which feature ............................................................................................................................................ 17
5.3 Operation mode and temperature setpoint .................................................................................................................. 18
5.3.1 To start/stop operation mode and to set the temperature.......................................................................... 19
5.4 Airflow rate ..................................................................................................................................................................... 19
5.4.1 To adjust the airflow rate ............................................................................................................................... 20
5.5 Airflow direction ............................................................................................................................................................. 20
5.5.1 To adjust vertical airflow direction ................................................................................................................ 21
5.5.2 To adjust horizontal airflow direction............................................................................................................ 21
5.5.3 To use 3-D airflow direction ........................................................................................................................... 21
5.6 Comfort airflow operation.............................................................................................................................................. 21
5.6.1 To start/stop Comfort airflow operation ....................................................................................................... 22
5.7 Powerful operation ......................................................................................................................................................... 22
5.7.1 To start/stop Powerful operation .................................................................................................................. 22
5.8 Econo operation.............................................................................................................................................................. 23
5.8.1 To start/stop Econo operation ....................................................................................................................... 23
5.9 OFF/ON timer operation................................................................................................................................................. 23
5.9.1 To start/stop OFF timer operation................................................................................................................. 24
5.9.2 To start/stop ON timer operation .................................................................................................................. 24
5.9.3 To combine OFF timer and ON timer............................................................................................................. 24
5.10 Wireless LAN connection................................................................................................................................................ 25
5.10.1 Precautions when using the wireless LAN ..................................................................................................... 25
5.10.2 To install the Daikin Residential Controller application................................................................................. 25
6 Energy saving and optimum operation 26
7 Maintenance and service 28
7.1 Overview: Maintenance and service .............................................................................................................................. 28
7.2 To clean the indoor unit and user interface................................................................................................................... 29
7.3 To clean the front panel ................................................................................................................................................. 30
7.4 To open the front panel.................................................................................................................................................. 30
7.5 About the air filters......................................................................................................................................................... 30
7.6 To clean the air filters ..................................................................................................................................................... 30
7.7 To clean the titanium apatite deodorising filter and the silver particle filter (Ag-ion filter)......................................... 31
7.8 To replace the titanium apatite deodorising filter and the silver particle filter (Ag-ion filter) ..................................... 32
7.9 To close the front panel.................................................................................................................................................. 32
7.10 To take following items into account before a long idle period.................................................................................... 32
7.10.1 Winter season................................................................................................................................................. 33
8 Troubleshooting 34
8.1 Symptoms that are NOT system malfunctions............................................................................................................... 36
8.1.1 Symptom: A sound like water flowing is heard ............................................................................................. 36
8.1.2 Symptom: A blowing sound is heard.............................................................................................................. 36
8.1.3 Symptom: A ticking sound is heard................................................................................................................ 36

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User reference guide
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Daikin room air conditioners
4D520466-11E – 2021.03
8.1.4 Symptom: A whistling sound is heard............................................................................................................ 36
8.1.5 Symptom: A clicking sound during operation or idle time is heard .............................................................. 36
8.1.6 Symptom: A clapping sound is heard............................................................................................................. 36
8.1.7 Symptom: White mist comes out of a unit (Indoor unit) .............................................................................. 36
8.1.8 Symptom: The units can give off odours ....................................................................................................... 36
8.1.9 Symptom: The outdoor fan rotates while the air conditioner is not in operation ....................................... 37
8.2 Solving problems based on error codes ......................................................................................................................... 37
8.3 Troubleshooting for wireless LAN connection ............................................................................................................... 38
9 Disposal 40
10 Glossary 41

1 | About the documentation
User reference guide
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FTXTP25+35M5V1B
Daikin room air conditioners
4D520466-11E – 2021.03
1 About the documentation
1.1 About this document
Thank you for purchasing this product. Please:
▪Keep the documentation for future reference.
Target audience
Endusers
INFORMATION
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.
Documentation set
This document is part of a documentation set. The complete set consists of:
▪General safety precautions:
-Safety instructions that you must read before operating your system
-Format: Paper (in the box of the indoor unit)
▪Operation manual:
-Quick guide for basic usage
-Format: Paper (in the box of the indoor unit)
▪User reference guide:
-Detailed step-by-step instructions and background information for basic and
advanced usage
-Format: Digital files on http://www.daikineurope.com/support-and-manuals/
product-information/
Latest revisions of the supplied documentation may be available on the regional
Daikin website or via your installer.
The original documentation is written in English. All other languages are
translations.
1.2 Meaning of warnings and symbols
DANGER
Indicates a situation that results in death or serious injury.
DANGER: RISK OF ELECTROCUTION
Indicates a situation that could result in electrocution.
DANGER: RISK OF BURNING/SCALDING
Indicates a situation that could result in burning/scalding because of extreme hot or
cold temperatures.

1 | About the documentation
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DANGER: RISK OF EXPLOSION
Indicates a situation that could result in explosion.
WARNING
Indicates a situation that could result in death or serious injury.
WARNING: FLAMMABLE MATERIAL
CAUTION
Indicates a situation that could result in minor or moderate injury.
NOTICE
Indicates a situation that could result in equipment or property damage.
INFORMATION
Indicates useful tips or additional information.
Symbols used on the unit:
Symbol Explanation
Before installation, read the installation and operation
manual, and the wiring instruction sheet.
Before performing maintenance and service tasks, read the
service manual.
For more information, see the installer and user reference
guide.
The unit contains rotating parts. Be careful when servicing or
inspecting the unit.
Symbols used in the documentation:
Symbol Explanation
Indicates a figure title or a reference to it.
Example: " 1–3 Figure title" means "Figure 3 in chapter 1".
Indicates a table title or a reference to it.
Example: " 1–3 Table title" means "Table 3 in chapter 1".

2 | User safety instructions
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2 User safety instructions
Always observe the following safety instructions and regulations.
2.1 General
WARNING
If you are NOT sure how to operate the unit, contact your
installer.
WARNING
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.
WARNING
To prevent electrical shocks or fire:
▪Do NOT rinse the unit.
▪Do NOT operate the unit with wet hands.
▪Do NOT place any objects containing water on the unit.
CAUTION
▪Do NOT place any objects or equipment on top of the
unit.
▪Do NOT sit, climb or stand on the unit.

2 | User safety instructions
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▪Units are marked with the following symbol:
This means that electrical and electronic products may NOT be mixed with
unsorted household waste. Do NOT try to dismantle the system yourself: the
dismantling of the system, treatment of the refrigerant, of oil and of other parts
must be done by an authorized installer and must comply with applicable
legislation.
Units must be treated at a specialized treatment facility for reuse, recycling and
recovery. By ensuring this product is disposed of correctly, you will help to
prevent potential negative consequences for the environment and human
health. For more information, contact your installer or local authority.
▪Batteries are marked with the following symbol:
This means that the batteries may NOT be mixed with unsorted household
waste. If a chemical symbol is 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%).
Waste batteries must be treated at a specialized treatment facility for reuse. By
ensuring waste batteries are disposed of correctly, you will help to prevent
potential negative consequences for the environment and human health.
2.2 Instructions for safe operation
WARNING: MILDLY FLAMMABLE MATERIAL
The refrigerant inside this unit is mildly flammable.
CAUTION
Do NOT insert fingers, rods or other objects into the air
inlet or outlet. When the fan is rotating at high speed, it
will cause injury.

2 | User safety instructions
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WARNING
▪Do NOT modify, disassemble, remove, reinstall or repair
the unit yourself as incorrect dismantling or installation
may cause an electric shock or fire. Contact your dealer.
▪In case of accidental refrigerant leaks, make sure there
are no naked flames. The refrigerant itself is entirely
safe, non-toxic and mildly flammable, but it will
generate toxic gas when it accidentally leaks into a room
where combustible air from fan heaters, gas cookers,
etc. is present. Always have qualified service personnel
confirm that the point of leakage has been repaired or
corrected before resuming operation.
CAUTION
ALWAYS use a user interface to adjust the position of the
flaps and louvers. When the flaps and louvers are swinging
and you move them forcibly by hand, the mechanism will
break.
CAUTION
NEVER expose little children, plants or animals directly to
the airflow.
WARNING
Do NOT place a flammable spray bottle near the air
conditioner and do NOT use sprays near the unit. Doing so
may result in a fire.
CAUTION
Do NOT operate the system when using a room
fumigation-type insecticide. Chemicals could collect in the
unit, and endanger the health of people who are
hypersensitive to chemicals.

2 | User safety instructions
User reference guide
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WARNING
The refrigerant inside the unit is mildly flammable, but
normally does NOT leak. If the refrigerant leaks in the
room and comes in contact with fire from a burner, a
heater, or a cooker, this may result in fire, or the formation
of a harmful gas.
Turn off any combustible heating devices, ventilate the
room, and contact the dealer where you purchased the
unit.
Do NOT use the unit until a service person confirms that
the part from which the refrigerant leaked has been
repaired.
WARNING
▪Do NOT pierce or burn refrigerant cycle parts.
▪Do NOT use cleaning materials or means to accelerate
the defrosting process other than those recommended
by the manufacturer.
▪Be aware that the refrigerant inside the system is
odourless.
WARNING
The appliance shall be stored so as to prevent mechanical
damage and in a well-ventilated room without
continuously operating ignition sources (e.g. open flames,
an operating gas appliance, or an operating electric
heater). The room size shall be as specified in the General
safety precaution.
DANGER: RISK OF ELECTROCUTION
To clean the air conditioner or air filter, be sure to stop
operation and turn all power supplies off. Otherwise, an
electric shock and injury may result.
CAUTION
After a long use, check the unit stand and fitting for
damage. If damaged, the unit may fall and result in injury.
CAUTION
Do NOT touch the heat exchanger fins. These fins are
sharp and could result in cutting injuries.

2 | User safety instructions
User reference guide
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WARNING
Be careful with ladders when working in high places.
WARNING
Improper detergents or cleaning procedure may cause
damage on plastic components or water leakage. Splashed
detergent on electric components, such as motors, may
cause failure, smoke or ignition.
DANGER: RISK OF ELECTROCUTION
Before cleaning, be sure to stop the operation, turn the
breaker off or pull out the supply cord. Otherwise, an
electric shock and injury may result.
WARNING
Stop operation and shut off the power if anything
unusual occurs (burning smells etc.).
Leaving the unit running under such circumstances may
cause breakage, electric shock or fire. Contact your dealer.

3 | About the system
User reference guide
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4D520466-11E – 2021.03
3 About the system
WARNING: MILDLY FLAMMABLE MATERIAL
The refrigerant inside this unit is mildly flammable.
NOTICE
Do NOT use the system for other purposes. In order to avoid any quality
deterioration, do NOT use the unit for cooling precision instruments, food, plants,
animals, or works of art.
3.1 Indoor unit
CAUTION
Do NOT insert fingers, rods or other objects into the air inlet or outlet. When the fan
is rotating at high speed, it will cause injury.
INFORMATION
The sound pressure level is less than 70dBA.
WARNING
▪Do NOT modify, disassemble, remove, reinstall or repair the unit yourself as
incorrect dismantling or installation may cause an electric shock or fire. Contact
your dealer.
▪In case of accidental refrigerant leaks, make sure there are no naked flames. The
refrigerant itself is entirely safe, non-toxic and mildly flammable, but it will
generate toxic gas when it accidentally leaks into a room where combustible air
from fan heaters, gas cookers, etc. is present. Always have qualified service
personnel confirm that the point of leakage has been repaired or corrected
before resuming operation.
INFORMATION
The following figures are just examples and may NOT completely match your system
layout.
f
e
g
i
h
cd
b
a

3 | About the system
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aAir inlet
bAir outlet
cFlap (horizontal blade)
dLouvers (vertical blades)
eFront panel
fModel name plate
gIndoor unit display
hTitanium apatite deodorising and silver particle filter (Ag-ion filter)
iAir filters
3.1.1 Indoor unit display
ON/OFF
a
b
c
d
aSignal receiver
bOperation lamp
cTimer lamp
dON/OFF button
ON/OFF button
If the user interface is missing, you can use the ON/OFF button on the indoor unit
to start/stop operation. When operation is started using this button, the following
settings are used:
▪Operation mode = Automatic
▪Temperature setting = 25°C
▪Airflow rate = Automatic
3.2 About the user interface
▪Direct sunlight. Do NOT expose the user interface to direct sunlight.
▪Dust. Dust on the signal transmitter or receiver will reduce sensitivity. Wipe off
dust with a soft cloth.
▪Fluorescent lights. Signal communication might be disabled if fluorescent lamps
are in the room. In that case, contact your installer.
▪Other appliances. If the user interface signals operate other appliances, move
the other appliances, or contact your installer.
▪Curtains. Make sure that the signal between the unit and the user interface is
NOT blocked by curtains or other objects.
NOTICE
▪Do NOT drop the user interface.
▪Do NOT let the user interface get wet.

3 | About the system
User reference guide
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3.2.1 Components: User interface
b
l
k
c
d
e
f
j
i
h
g
a
aSignal receiver
bOFF button
cFan setting button
dEcono operation button
eSwing buttons
fTimer setting buttons (ON, OFF, cancel)
gPowerful operation button
hComfort operation button
iTemperature adjustment button
jOperation mode buttons
kAutomatic operation mode button
lLCD display
3.2.2 Status: User interface LCD
Icon Description
Operation mode = Automatic
Operation mode = Drying
Operation mode = Heating
Operation mode = Cooling
Operation mode = Fan only
Powerful operation is active
Econo operation is active

3 | About the system
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Icon Description
The indoor unit receives a signal from the user interface
Current temperature setting
Airflow rate = Automatic
Airflow rate = Indoor unit quiet
Airflow rate = High
Airflow rate = Medium high
Airflow rate = Medium
Airflow rate = Medium low
Airflow rate = Low
Comfort operation is active
Automatic vertical swing is active
Automatic horizontal swing is active
ON timer is active
OFF timer is active
3.2.3 To operate the user interface
a
aSignal receiver
1Aim the signal transmitter at the signal receiver on the indoor unit (maximum
distance for communication is 7m).
Result: When the indoor unit receives a signal from the user interface, you will
hear a sound:
Sound Description
Beep-beep Operation starts.
Beep Setting changes.
Long beep Operation stops.

4 | Before operation
User reference guide
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4 Before operation
4.1 Overview: Before operation
This chapter describes what you have to do before operating the unit.
Typical workflow
Before operation usually consist of the following stages:
▪Inserting the batteries in the user interface.
▪Fixing the user interface to the wall.
▪Turning on the power supply.
4.2 To insert the batteries
The batteries will last for about 1 year.
1Remove the back cover.
2Insert both batteries at once.
3Put the cover back.
2
3
1
AAA.LR03
4.3 To mount the user interface holder
c
ba
2×
aUser interface
bScrews (field supply)
cUser interface holder
1Choose a place where the signals reach the unit.
2Attach the holder with screws to the wall or a similar location.
3Hang the user interface on the user interface holder.

4 | Before operation
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4.4 To turn on the power supply
1Turn the circuit breaker on.
Result: The flap of the indoor unit will open and close to set the reference position.

5 | Operation
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5 Operation
5.1 Operation range
Use the system in the following temperature and humidity ranges for safe and
effective operation.
Operation mode Operation range
Cooling(a)(b) ▪Outdoor temperature: –10~46°C DB
▪Indoor temperature: 18~32°C DB
▪Indoor humidity: ≤80%
Heating(a) ▪Outdoor temperature: –25~24°C DB
▪Indoor temperature: 10~30°C DB
Drying(a) ▪Outdoor temperature: –10~46°C DB
▪Indoor temperature: 18~32°C DB
▪Indoor humidity: ≤80%
(a) A safety device might stop the operation of the system if the unit runs outside its
operation range.
(b) Condensation and water dripping might occur if the unit runs outside its operation range.
5.2 When to use which feature
You can use the following table to determine which features to use:
Feature Tasks
Basic features
Operation modes and
temperature
To start/stop the system and to set the
temperature:
▪Heat up or cool down a room.
▪Blow air in a room without heating or cooling.
▪Decrease the humidity in a room.
▪In Automatic mode, automatically select an
appropriate temperature and operation
mode.
+ Airflow direction To adjust the airflow direction (swing or fixed
position).
Airflow rate To adjust the amount of air blown into the
room.
To run more quietly.
Advanced features
Econo To use the system when you are also using
other power-consuming appliances.
To save energy.

5 | Operation
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Feature Tasks
Comfort To provide a comfortable airflow that does NOT
come in direct contact with people.
Powerful To cool down or heat up the room quickly.
ON timer + OFF timer To automatically turn ON or OFF the system.
5.3 Operation mode and temperature setpoint
When. Adjust the system operation mode and set the temperature when you want
to:
▪Heat up or cool down a room
▪Blow air in a room without heating or cooling
▪Decrease the humidity in a room
What. The system operates differently, depending on the user selection.
Setting Description
Automatic The system cools down or heats up a room to
the temperature setpoint. It automatically
switches between cooling and heating if
necessary.
Drying The system decreases the humidity in a room.
Heating The system heats up a room to the temperature
setpoint.
Cooling The system cools down a room to the
temperature setpoint.
Fan The system only controls the airflow (airflow
rate and airflow direction).
The system does NOT control the temperature.
Additional info:
▪Outside temperature. The system's cooling or heating effect decreases when the
outside temperature is too high or too low.
▪Defrost operation. During heating operation, frost might occur on the outdoor
unit and decrease the heating capacity. In that case, the system automatically
switches to defrosting operation to remove the frost. During defrosting
operation, hot air is NOT blown from the indoor unit.

5 | Operation
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5.3.1 To start/stop operation mode and to set the temperature
: Operation mode = Automatic
: Operation mode = Drying
: Operation mode = Heating
: Operation mode = Cooling
: Operation mode = Fan only
: Shows the set temperature.
1Start operation by pressing one of the following buttons.
Mode Press Result
Automatic operation
The operation lamp lights up.
Cooling operation
Drying operation
Heating operation
Fan only operation
2Press or on the button one or more times to set the temperature.
You CANNOT adjust the temperature in drying or fan only operation mode.
Cooling operation Heating operation Automatic
operation
Drying or fan only
operation
18~32°C 10~30°C 18~30°C —
3Press to stop operation.
Result: The operation lamp goes off.
5.4 Airflow rate
INFORMATION
▪When using drying operation mode, you CANNOT adjust the airflow rate setting.
▪The airflow rate in heating mode will lower to avoid generating cold airflow.
When temperature of the airflow rise, operation will continue at the set airflow
rate.
1Press to choose:
5 airflow rate levels, from " " to " "
Automatic airflow rate operation
Indoor unit quiet operation. When the airflow rate is set to " ",
the noise from the unit will be reduced.

5 | Operation
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INFORMATION
If the unit reach the temperature setpoint:
▪in cooling or automatic mode. Fan will stop operating.
▪in heating mode. Fan will operate in low airflow rate.
5.4.1 To adjust the airflow rate
1Press to change the airflow setting as follows:
5.5 Airflow direction
When. Adjust the airflow direction as desired.
What. The system directs the airflow differently, depending on the user selection
(swinging or fixed position). It does so by moving horizontal blades (flaps) or
vertical blades (louvers).
Setting Airflow direction
Vertical automatic swing Moves up and down.
Horizontal automatic
swing
Moves from side to side.
+ 3-D airflow direction Moves alternately up and down and from side
to side
[—] Stays in a fixed position.
CAUTION
ALWAYS use a user interface to adjust the position of the flaps and louvers. When
the flaps and louvers are swinging and you move them forcibly by hand, the
mechanism will break.
The movable range of the flap varies according to the operation mode. The flap will
stop at the upper position when the airflow rate is changed to low during the up
and down swing setting.
a
b
c
aFlap range in cooling or drying operation
bFlap range in heating operation
cFlap range in fan only operation