Daikin R32 Split Series User manual

Operation manual
R32 Split series English
Operation manual
R32 Split series
FTXP20M5V1B
FTXP25M5V1B
FTXP35M5V1B
FTXP20M5V1B9
FTXP25M5V1B9
FTXP35M5V1B9

Table of contents
Operation manual
2
FTXP20~35M5V1B/B9
R32 Split series
3P520336-6T – 2021.12
Table of contents
1 About the documentation 2
1.1 About this document.................................................................. 2
2 User safety instructions 2
2.1 Instructions for safe operation ................................................... 2
3 About the system 4
3.1 Indoor unit ................................................................................. 4
3.1.1 Indoor unit display....................................................... 4
3.2 About the user interface ............................................................ 4
3.2.1 Components: Wireless remote control........................ 5
3.2.2 Status: Wireless remote control LCD.......................... 5
3.2.3 To operate the wireless remote control....................... 5
4 Before operation 5
4.1 To mount the wireless remote control holder ............................ 5
4.2 To insert the batteries................................................................ 6
4.3 To switch between Fahrenheit and Celsius............................... 6
4.4 To turn on the power supply...................................................... 6
5 Operation 6
5.1 Operation range ........................................................................ 6
5.2 When to use which feature........................................................ 6
5.3 Operation mode and temperature setpoint................................ 6
5.3.1 To start/stop operation mode and to set the
temperature................................................................. 7
5.3.2 Airflow rate .................................................................. 7
5.3.3 Airflow direction........................................................... 7
5.3.4 Comfort airflow operation............................................ 8
5.3.5 Powerful operation ...................................................... 8
5.3.6 Econo operation.......................................................... 9
5.3.7 OFF/ON timer operation ............................................. 9
6 Energy saving and optimum operation 10
7 Maintenance and service 10
7.1 Overview: Maintenance and service ......................................... 10
7.2 To clean the indoor unit and wireless remote control................ 11
7.3 To clean the front panel............................................................. 11
7.4 To clean the air filters ................................................................ 11
7.5 To clean the titanium apatite deodorising filter and the silver
particle filter (Ag-ion filter) ......................................................... 11
7.6 To replace the titanium apatite deodorising filter and the silver
particle filter (Ag-ion filter) ......................................................... 12
7.7 To close the front panel............................................................. 12
7.8 To take following items into account before a long idle period.. 12
8 Troubleshooting 12
8.1 Symptoms that are NOT system malfunctions .......................... 12
8.1.1 Symptom: A sound like water flowing is heard ........... 12
8.1.2 Symptom: A blowing sound is heard........................... 12
8.1.3 Symptom: A ticking sound is heard............................. 13
8.1.4 Symptom: A whistling sound is heard ......................... 13
8.1.5 Symptom: A clicking sound during operation or idle
time is heard ............................................................... 13
8.1.6 Symptom: A clapping sound is heard ......................... 13
8.1.7 Symptom: White mist comes out of a unit (Indoor
unit) ............................................................................. 13
8.1.8 Symptom: The units can give off odours..................... 13
8.1.9 Symptom: The outdoor fan rotates while the air
conditioner is not in operation ..................................... 13
8.2 Solving problems based on error codes.................................... 13
9 Disposal 13
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.
2 User safety instructions
Always observe the following safety instructions and regulations.
2.1 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
Operation manual
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FTXP20~35M5V1B/B9
R32 Split series
3P520336-6T – 2021.12
WARNING
▪ Do NOT modify, disassemble,
remove, reinstall or repair the unit
yourself as incorrect dismantling or
installation may cause an electrical
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 the wireless remote
control or other user interface (if
applicable) 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.
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
electrical 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.

3 About the system
Operation manual
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FTXP20~35M5V1B/B9
R32 Split series
3P520336-6T – 2021.12
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
electrical 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,
electrical shock or fire. Contact your
dealer.
3 About the system
WARNING: 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 electrical 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.
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
Wireless remote control
INFORMATION
The indoor unit is delivered with the wireless remote
control as the user interface. This manual describes only
operation with this user interface. If another user interface
is connected, refer to the operation manual of the
connected user interface.
▪Direct sunlight. Do NOT expose the wireless remote control 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 wireless remote control signals operate
other appliances, move the other appliances, or contact your
installer.
▪Curtains. Make sure that curtains or other objects do NOT block
the signal between the unit and the wireless remote control.

4 Before operation
Operation manual
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FTXP20~35M5V1B/B9
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3P520336-6T – 2021.12
NOTICE
▪ Do NOT drop the wireless remote control.
▪ Do NOT let the wireless remote control get wet.
3.2.1 Components: Wireless remote control
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: Wireless remote control 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
The indoor unit receives a signal from the user
interface
Icon Description
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 wireless remote control
a
aInfrared signal receiver
1Aim the signal transmitter at the infrared signal receiver on the
indoor unit (maximum distance for communication is 7m).
Result: When the indoor unit receives a signal from the wireless
remote control, you will hear a sound:
Sound Description
Beep-beep Operation starts.
Beep Setting changes.
Long beep Operation stops.
4 Before operation
4.1 To mount the wireless remote
control holder
c
ba
2×
aWireless remote control

5 Operation
Operation manual
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bScrews (field supply)
cWireless remote control holder
1Choose a place where the signals reach the unit.
2Attach the holder with screws to the wall or a similar location.
3Hang the wireless remote control on the holder.
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 switch between Fahrenheit and
Celsius
Prerequisite: Change this setting only when the temperature is
displayed.
1Press and simultaneously for about 5seconds.
Result: The setting changes.
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
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: –10~48°C DB
▪ Indoor temperature: 18~32°C DB
▪ Indoor humidity: ≤80%
Heating(a) ▪ Outdoor temperature: –15~24°C DB
▪ Indoor temperature: 10~30°C DB
Drying(a) ▪ Outdoor temperature: –10~48°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
Feature Tasks
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.
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.

5 Operation
Operation manual
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FTXP20~35M5V1B/B9
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3P520336-6T – 2021.12
▪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.
5.3.1 To start/stop operation mode and to set
the temperature
: Unit is operating.
: Operation mode = Automatic
: Operation mode = Drying
: Operation mode = Heating
: Operation mode = Cooling
: Operation mode = Fan only
: Shows the set temperature.
1Press one or more times to select the operation mode.
Result: The mode will be set in the following sequence:
2Press to start operation.
Result: is displayed on the LCD.
Result: The operation lamp lights up.
3Press or on the button one or more times to lower or
raise the temperature.
Note: When using drying or fan only mode, you cannot adjust the
temperature.
4Press to stop operation.
Result: disappears from the LCD.
Result: The operation lamp goes off.
: Operation mode = Automatic
: Operation mode = Drying
: Operation mode = Heating
: Operation mode = Cooling
: Operation mode = Fan only
: Shows the set
temperature.
5Start 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
6Press 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 —
7Press to stop operation.
Result: The operation lamp goes off.
5.3.2 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.
INFORMATION
▪ If the unit reaches the temperature setpoint in cooling
or heating mode, the fan will stop operating.
▪ When using drying operation mode, you CANNOT
adjust the airflow rate setting.
To adjust the airflow rate
1Press to change the airflow setting as follows:
5.3.3 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 the
vertical blades.
Setting Airflow direction
Vertical auto swing Moves up and down.
[—] Stays in a fixed position.
CAUTION
▪ ALWAYS use a user interface (e.g. wireless remote
control) to adjust the angle of the flap. When the flap is
swinging and you move it forcibly by hand, the
mechanism will break.
▪ Be careful when adjusting the louvers. Inside the air
outlet, a fan is rotating at high speed.

5 Operation
Operation manual
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3P520336-6T – 2021.12
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 hating operation
cFlap range in fan only operation
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 the wireless remote control or other user
interface (if applicable) 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.
To adjust the airflow direction
1To use auto swing, press .
Result: will appear on the LCD.
Result: The flap (horizontal blade) will begin to swing.
2To use fixed position, press when the flap reaches the
desired position.
Result: disappears from the LCD.
To adjust the louvers (vertical blades)
1Hold 1 or both knobs and move the louvers.
aa
aKnobs
INFORMATION
When the unit is installed in a corner of a room, the
direction of the louvers should be facing away from the
wall. Efficiency will drop if a wall blocks the air.
5.3.4 Comfort airflow operation
This operation can be used in heating or cooling operation mode. It
will provide a comfortable wind that will NOT come in direct contact
with people. The system automatically sets the fixed airflow position
upward in Cooling and downward in Heating operation mode.
Cooling operation mode Heating operation mode
INFORMATION
Powerful and Comfort airflow operation CANNOT be used
at the same time. The last selected function takes priority.
If the vertical automatic swing is selected, Comfort airflow
operation will be cancelled.
To start/stop Comfort airflow operation
1Press to start.
Result: The flap position will change, is displayed on the
LCD, and the airflow rate is set to automatic.
Mode Position of flap…
Cooling/Drying Up
Heating Down
Note: Comfort airflow operation is NOT available in Fan only mode.
2Press to stop.
Result: The flap will return to the position from before the Comfort
airflow mode; disappears from the LCD.
5.3.5 Powerful operation
This operation quickly maximizes the cooling/heating effect in any
operation mode. You can get the maximum capacity.
INFORMATION
Powerful operation CANNOT be used together with Econo
and Comfort airflow operation. The last selected function
takes priority.
Powerful operation will NOT increase the capacity of the
unit if it already operates at maximum capacity.
To start/stop Powerful operation
1Press to start.
Result: is displayed on the LCD. Powerful operation runs
for 20minutes; after that, operation returns to the previously set
mode.
2Press to stop.
Result: disappears from the LCD.

5 Operation
Operation manual
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FTXP20~35M5V1B/B9
R32 Split series
3P520336-6T – 2021.12
Note: Powerful operation can be set only when the unit is running. If
you press or if you change operation mode, operation will be
cancelled; disappears from the LCD.
5.3.6 Econo operation
This 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.
INFORMATION
▪ Powerful and Econo operation CANNOT be used at the
same time. The last selected function takes priority.
▪ Econo operation reduces power consumption of the
outdoor unit by limiting the rotation speed of the
compressor. If power consumption is already low,
Econo operation will NOT further reduce power
consumption.
To start/stop Econo operation
1Press to start.
Result: is displayed on the LCD.
2Press to stop.
Result: disappears from the LCD.
5.3.7 OFF/ON timer operation
Timer functions are useful for automatically switching the air
conditioner off/on at night or in the morning. You can also use OFF
timer and ON timer in combination.
INFORMATION
Program the timer again in case of:
▪ A breaker has turned the unit off.
▪ A power failure.
▪ After replacing batteries in the wireless remote control.
To start/stop ON timer operation
Use this feature if the unit is NOT operating and you want to start
operation after a certain time.
1Press .
Result: is displayed on the LCD and the timer lamp
lights up.
2Press again if you want to change the time setting.
INFORMATION
Each time is pressed, the time setting advances by
1 hour. The timer can be set between 1 to 12 hours.
Example: If is set when the unit is NOT operating,
operation will start after 2hours.
3To cancel the setting, press .
Result: and the time setting disappear from the LCD and the
timer lamp goes off.
To start/stop OFF timer operation
Use this feature if the unit is operating and you want to stop
operation after a certain time.
1Press .
Result: is displayed on the LCD and the timer lamp
lights up.
2Press again if you want to change the time setting.
INFORMATION
Each time is pressed, the time setting advances by
1 hour. The timer can be set between 1 to 12 hours.
Example: If is set when the unit is operating, operation
will stop after 5hours.
3To cancel the setting, press .
Result: and the time setting disappear from the LCD and the
timer lamp goes off.
INFORMATION
Night set mode
When the OFF timer is set, the air conditioner
automatically adjusts the temperature setting (0.5°C up in
cooling, 2.0°C down in heating) to prevent excessive
cooling/heating and ensure a comfortable sleeping
temperature.
INFORMATION
When you set the ON/OFF timer, the time setting is stored
in the memory. The memory will be reset when the
wireless remote control 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
cooling, 2.0°C down in heating) to prevent excessive
cooling/heating and ensure a comfortable sleeping
temperature.
To combine OFF timer and ON timer
1To set the timers, refer to "To start/stop OFF timer
operation"[49] and "To start/stop ON timer operation"[49].
Result: and are displayed on the LCD.
2Example of what is displayed on the LCD if you combine the 2
timers:
3To set the timers, refer to "To start/stop OFF timer
operation"[49] and "To start/stop ON timer operation"[49].
Result: and are displayed on the LCD.
Example:
4If is set when the unit is operating.
Result: Operation stops in 1 hour and then starts 7 hours
later.
5If is set when the unit is NOT
operating.
Result: Operation starts in 2 hours and then stops 3 hours
later.

6 Energy saving and optimum operation
Operation manual
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FTXP20~35M5V1B/B9
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3P520336-6T – 2021.12
6 Energy saving and optimum
operation
INFORMATION
▪ Even if the unit is turned OFF, it consumes electricity.
▪ When the power turns back on after a power break, the
previously selected mode will be resumed.
CAUTION
NEVER expose little children, plants or animals directly to
the airflow.
NOTICE
Do NOT place objects below the indoor and/or outdoor unit
that may get wet. Otherwise condensation on the unit or
refrigerant pipes, air filter dirt or drain blockage may cause
dripping, and objects under the unit may get dirty or
damaged.
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.
7 Maintenance and service
7.1 Overview: Maintenance and
service
The installer has to perform a yearly maintenance.
About the refrigerant
This product contains fluorinated greenhouse gases. Do NOT vent
gases into the atmosphere.
Refrigerant type: R32
Global warming potential (GWP) value: 675
NOTICE
Applicable legislation on fluorinated greenhouse gases
requires that the refrigerant charge of the unit is indicated
both in weight and CO2 equivalent.
Formula to calculate the quantity in CO2 equivalent
tonnes: GWP value of the refrigerant × total refrigerant
charge [in kg] / 1000
Please contact your installer for more information.
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 in a room without
continuously operating ignition sources (example: open
flames, an operating gas appliance or an operating electric
heater).
NOTICE
Maintenance MUST be done by an authorised installer or
service agent.
We recommend performing maintenance at least once a
year. However, applicable legislation might require shorter
maintenance intervals.
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
electrical shock and injury may result.
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
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.
WARNING
Be careful with ladders when working in high places.

7 Maintenance and service
Operation manual
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FTXP20~35M5V1B/B9
R32 Split series
3P520336-6T – 2021.12
7.2 To clean the indoor unit and
wireless remote control
NOTICE
▪ Do NOT use gasoline, benzene, thinner, polishing
powder or liquid insecticide. Possible consequence:
Discoloration and deformation.
▪ Do NOT use water or air of 40°C or higher. Possible
consequence: Discoloration and deformation.
▪ Do NOT use polishing compounds.
▪ Do NOT use a scrubbing brush. Possible
consequence: The surface finishing peels off.
▪ As an end user, you may NEVER clean inside parts of
the unit by yourself; this work must be performed by a
qualified service person. Contact your dealer.
DANGER: RISK OF ELECTROCUTION
Before cleaning, be sure to stop the operation, turn the
breaker OFF or pull out the supply cord. Otherwise, an
electrical shock and injury may result.
1Clean with a soft cloth. If it is difficult to remove stains, use
water or a neutral detergent.
7.3 To clean the front panel
1Clean the front panel with a soft cloth. If it is difficult to remove
stains, use water or a neutral detergent.
7.4 To clean the air filters
1Push the tab at the centre of each air filter, then pull it down.
2Pull out the air filters.
1
2
3Remove the titanium apatite deodorising filter and silver particle
filter from the tabs.
aTab
4Wash the air filters with water or clean them with a vacuum
cleaner.
5Soak in lukewarm water for about 10 to 15 minutes.
6Install all filters back in their original positions.
INFORMATION
▪ If the dust does NOT come off easily, wash them with a
neutral detergent diluted in lukewarm water. Dry the air
filters in the shade.
▪ It is recommended to clean the air filters every 2
weeks.
INFORMATION
▪ If the dust does NOT come off easily, wash the air
filters with a neutral detergent diluted in lukewarm
water. Dry the air filters in the shade.
▪ Be sure to remove the titanium apatite deodorising and
silver particle filters.
▪ It is recommended to clean the air filters every 2
weeks.
7.5 To clean the titanium apatite
deodorising filter and the silver
particle filter (Ag-ion filter)
INFORMATION
Clean the filter with water every 6 months.
1Remove the titanium apatite deodorising and silver particle
filters from the tabs.
aTabs
2Remove the dust from the filter with a vacuum cleaner.

8 Troubleshooting
Operation manual
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FTXP20~35M5V1B/B9
R32 Split series
3P520336-6T – 2021.12
3Soak the filter for 10 to 15 minutes in warm water. Do NOT
remove the filter from the frame.
4After washing, shake off remaining water and dry the filter in the
shade. Do NOT wring out the filter when removing water.
7.6 To replace the titanium apatite
deodorising filter and the silver
particle filter (Ag-ion filter)
INFORMATION
Replace the filter every 3 years.
1Remove the filter from the tabs of the filter frame and replace
the filter with a new one.
INFORMATION
▪ Do NOT throw away the filter frame, but use it again.
▪ Dispose of the old filter as non-flammable waste.
7.7 To close the front panel
1Set the filters as they were.
2Gently press the front panel at both sides and at the center until
it clicks.
7.8 To take following items into
account before a long idle period
Operate the unit in fan only mode for several hours to dry the inside
of the unit.
1Press and select fan only operation.
2Press to start operation.
3Set the mode to fan only by pressing button to dry the
inside of the unit.
4After operation stops, turn the breaker OFF.
5Clean the air filters and replace them in their original positions.
6Remove the batteries from the wireless remote control.
INFORMATION
It is recommended to have periodical maintenance
performed by a specialist. For specialist maintenance,
contact your dealer. Maintenance costs shall be borne by
the customer.
In certain operating conditions the inside of the unit may
get dirty after several seasons of use. This results in poor
performance.
8 Troubleshooting
If one of the following malfunctions occur, take the measures shown
below and contact your dealer.
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, electrical shock or fire. Contact your
dealer.
The system MUST be repaired by a qualified service person.
Malfunction Measure
If a safety device such as a fuse, a
breaker or an earth leakage breaker
frequently actuates or the ON/OFF
switch does NOT properly work.
Turn OFF the main power
switch.
If water leaks from the unit. Stop the operation.
The operation switch does NOT work
well.
Turn OFF the power
supply.
If the user interface display indicates the
unit number, the operation lamp flashes
and the malfunction code appears.
Notify your installer and
report the malfunction
code.
If the system does NOT operate properly except for the above
mentioned cases and none of the above mentioned malfunctions is
evident, investigate the system in accordance with the following
procedures.
INFORMATION
Refer to the reference guide located on http://
www.daikineurope.com/support-and-manuals/product-
information/ for more troubleshooting tips.
If after checking all above items, it is impossible to fix the problem
yourself, contact your installer and state the symptoms, the complete
model name of the unit (with manufacturing number if possible) and
the installation date (possibly listed on the warranty card).
8.1 Symptoms that are NOT system
malfunctions
The following symptoms are NOT system malfunctions:
8.1.1 Symptom: A sound like water flowing is
heard
▪ This sound is caused by the refrigerant flowing in the unit.
▪ This sound may be generated when water is flowing away from
the unit during cooling or drying operation.
8.1.2 Symptom: A blowing sound is heard
This sound is generated when the direction of the refrigerant flow is
changed (e.g. when switching from cooling to heating).

9 Disposal
Operation manual
13
FTXP20~35M5V1B/B9
R32 Split series
3P520336-6T – 2021.12
8.1.3 Symptom: A ticking sound is heard
This sound is generated when the unit slightly expands or contracts
with changes in temperature.
8.1.4 Symptom: A whistling sound is heard
This sound is generated by the refrigerant flowing during defrost
operation.
8.1.5 Symptom: A clicking sound during
operation or idle time is heard
This sound is generated when the refrigerant control valves or
electrical parts operate.
8.1.6 Symptom: A clapping sound is heard
This sound is generated when an external device sucks air out of the
room (e.g. exhaust fan, extractor hood) while the doors and windows
in the room are closed. Open the doors or windows, or turn off the
device.
8.1.7 Symptom: White mist comes out of a unit
(Indoor unit)
▪ When humidity is high during cooling operation (in oily and dusty
places). If the interior of an indoor unit is extremely contaminated,
the temperature distribution inside a room becomes uneven. It is
necessary to clean the interior of the indoor unit. Ask your dealer
for details on cleaning the unit. This operation requires a qualified
service person.
▪ When the air conditioner is changed over to heating operation
after defrost operation. Moisture generated by defrost becomes
steam and exits.
8.1.8 Symptom: The units can give off odours
The unit can absorb the smell of rooms, furniture, cigarettes, etc.,
and then emit it again.
8.1.9 Symptom: The outdoor fan rotates while
the air conditioner is not in operation
▪After operation has stopped. The outdoor fan continues to
rotate for another 30 seconds for system protection.
▪While the air conditioner is not in operation. When the outdoor
temperature is very high, the outdoor fan starts to rotate for
system protection.
8.2 Solving problems based on error
codes
Fault diagnosis by the wireless remote control
If the unit runs into a problem, you can identify the fault by checking
the error code by the wireless remote control. It is important to
understand the problem and take measures before resetting the
error code. This should be done by a licensed installer or your local
dealer.
INFORMATION
See the service manual for:
▪ The complete list of error codes
▪ A more detailed troubleshooting guideline for each
error
To check the error code by the wireless remote control
1Aim the wireless remote control at the unit and press for
about 5seconds.
Result: blinks in the temperature setting display section.
2Aim the wireless remote control at the unit and press
repeatedly until a continuous beep is heard.
Result: The code is now displayed on the display.
INFORMATION
▪ A short beep and 2 consecutive beeps indicate non-
corresponding codes.
▪ To cancel the code display, hold for 5seconds.
The code will also disappear from the display if the
button is NOT pressed within 1minute.
System
Error code Description
Normal
Refrigerant shortage
Overvoltage detection
Signal transmission error (between indoor and
outdoor unit)
Indoor/outdoor unit combination fault
Indoor unit
Error code Description
Indoor unit PCB abnormality
Freeze-up protection or high-pressure control
Fan motor (DC motor) abnormality
Indoor heat exchanger thermistor abnormality
Room temperature thermistor abnormality
Outdoor unit
Error code Description
4-way valve abnormality
Outdoor unit PCB abnormality
Overload activation (compressor overload)
Compressor lock
DC fan lock
Input power overcurrent
Discharge pipe temperature control
High-pressure control (in cooling mode)
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
Electrical parts heat error
Radiation fin temperature rise
Inverter instantaneous overcurrent (DC)
Radiation fin thermistor abnormality
Compressor internal temperature error
9 Disposal
NOTICE
Do NOT try to dismantle the system yourself: dismantling
of the system, treatment of the refrigerant, oil and other
parts MUST comply with applicable legislation. Units
MUST be treated at a specialised treatment facility for
reuse, recycling and recovery.

DAIKIN ISITMA VE SOĞUTMA SİSTEMLERİSAN.TİC. A.Ş.
İSTANBUL / TÜRKİYE
Tel: [phone]
Faks: 0216 671 06 00
Çağrı Merkezi: 444 999 0
Web: www.daikin.com.tr
Gülsuyu Mahallesi, Fevzi Çakmak Caddesi, Burçak Sokak, No:20, 34848 Maltepe
3P520336-6T 2021.12
Copyright 2021 Daikin
Verantwortung für Energie und Umwelt