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Operation manual
R32 split series
English
Operation manual
R32 split series
FTXP20L2V1B
FTXP25L2V1B
FTXP35L2V1B
FTXP50L2V1B
FTXP60L2V1B
FTXP71L2V1B
Table of Contents
Operation manual
2
FTXP20~71L2V1B
R32 split series
3P511999-1C – 2018.01
Table of Contents
1 About the documentation 2
1.1 About this document.................................................................. 2
2 About the system 2
2.1 Indoor unit ................................................................................. 2
2.2 About the user interface ............................................................ 3
2.2.1 Components: User interface ....................................... 3
2.2.2 Status: User interface LCD ......................................... 3
2.2.3 To operate the user interface...................................... 4
3 Before operation 4
3.1 To fix the user interface to the wall............................................ 4
3.2 To insert the batteries................................................................ 4
3.3 To switch between Fahrenheit and Celsius............................... 4
3.4 To turn on the power supply...................................................... 4
4 Operation 4
4.1 Operation range ........................................................................ 4
4.2 When to use which feature........................................................ 5
4.3 Operation mode and temperature setpoint................................ 5
4.3.1 To start/stop operation and to set the temperature..... 5
4.3.2 Airflow rate .................................................................. 5
4.3.3 Airflow direction........................................................... 6
4.3.4 Comfort airflow operation............................................ 6
4.3.5 Powerful operation ...................................................... 6
4.3.6 Econo operation.......................................................... 7
4.3.7 OFF/ON timer operation ............................................. 7
5 Energy saving and optimum operation 8
6 Maintenance and service 8
6.1 Overview: Maintenance and service ......................................... 8
6.2 To clean the indoor unit and user interface ............................... 9
6.3 To clean the front panel............................................................. 9
6.4 To open the front panel ............................................................. 9
6.5 To clean the air filters ................................................................ 9
6.6 To clean the titanium apatite deodorizing filter.......................... 10
6.7 To replace the titanium apatite deodorizing filter....................... 10
6.8 To close the front panel............................................................. 10
6.9 To take following items into account before a long idle period.. 10
7 Troubleshooting 10
7.1 Symptoms that are NOT system malfunctions .......................... 11
7.1.1 Symptom: A sound like water flowing is heard ........... 11
7.1.2 Symptom: A blowing sound is heard........................... 11
7.1.3 Symptom: A ticking sound is heard............................. 11
7.1.4 Symptom: A whistling sound is heard ......................... 11
7.1.5 Symptom: A clicking sound during operation or idle
time is heard ............................................................... 11
7.1.6 Symptom: A clapping sound is heard ......................... 11
7.1.7 Symptom: The units can give off odours..................... 11
7.1.8 Symptom: The outdoor fan rotates while the air
conditioner is not in operation ..................................... 12
7.2 Solving problems based on error codes.................................... 12
8 Disposal 12
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 About the system
WARNING: FLAMMABLE MATERIAL
The refrigerant inside this unit is mildly flammable.
2.1 Indoor unit
INFORMATION
The following figures are just examples and may NOT
completely match your system layout.
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.
2 About the system
Operation manual
3
FTXP20~71L2V1B
R32 split series
3P511999-1C – 2018.01
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.
f
e
g
m
l
ON/OFF
h
i
k
j
c
d
b
a
a Air inlet
b Air outlet
c Flap (horizontal blade)
d Louvers (vertical blades)
e Front panel
f Model name plate
g Room temperature sensor
h Signal receiver
i Operation lamp (green)
j Timer lamp (orange)
k Indoor unit ON/OFF switch
l Titanium apatite deodorizing filter
m Air filter
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
2.2 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.
2.2.1 Components: User interface
i
a
b
j
k
l
n
m
c
d
e
f
g
h
a Display (LCD)
b Auto button
c Direct operation button
d Temperature adjustment button
e Comfort button
f Powerful button
g ON timer button
h Signal transmitter
i OFF button (Night set mode)
j Fan setting button
k Econo button
l Swing button
m OFF timer button
n Timer cancel button
2.2.2 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
The indoor unit receives a signal from the user
interface
3 Before operation
Operation manual
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FTXP20~71L2V1B
R32 split series
3P511999-1C – 2018.01
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
Auto vertical swing is active
ON timer is active
OFF timer is active
2.2.3 To operate the user interface
a
a Signal receiver
1 Aim 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.
3 Before operation
3.1 To fix the user interface to the wall
c
ba
a User interface
b Screws
c User interface holder
1 Choose a place where the signals reach the unit.
2 Attach the holder with screws to the wall or a similar location.
3 Hang the user interface on the user interface holder.
3.2 To insert the batteries
The batteries will last for about 1 year.
1 Remove the back cover.
2 Insert both batteries at once.
3 Put the cover back.
2
3
1
AAA.LR03
3.3 To switch between Fahrenheit and
Celsius
Change this setting only when the temperature is displayed.
1 Press and simultaneously for about 5seconds.
Result: The setting changes.
3.4 To turn on the power supply
1 Turn the circuit breaker on.
Result: The flap of the indoor unit will open and close to set the
reference position.
4 Operation
4.1 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
Indoor temperature: 18~32°C
Indoor humidity: ≤80%
Heating
(a)
Outdoor temperature: –15~24°C
Indoor temperature: 10~30°C
Drying
(a)
Outdoor temperature: –10~46°C
Indoor temperature: 18~32°C
Indoor humidity: ≤80%
If operated outside the operation range:
(a) A safety device might stop the operation of the system.
(b) Condensation might occur on the indoor unit and drip.
4 Operation
Operation manual
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FTXP20~71L2V1B
R32 split series
3P511999-1C – 2018.01
4.2 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.
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.
4.3 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 without changing the temperature.
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.
4.3.1 To start/stop operation 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.
1 Start operation by pressing one of the following buttons.
Result: The operation lamp lights up.
Mode Press Result
Automatic operation
Cooling operation
Drying operation
Heating operation
Fan only operation
2 Press or on the button one or more times to set the
temperature.
Note: When using drying or fan only operation mode, you CANNOT
adjust the temperature.
Cooling
operation
Heating
operation
Automatic
operation
Drying or fan
only operation
18~32°C 10~30°C 18~30°C
3 Press to stop operation.
Result: The operation lamp goes off.
4.3.2 Airflow rate
Note: If the unit reach the temperature set point in cooling, heating
or automatic mode. Fan will stop operating.
1 Press to choose:
5 airflow rate levels, from " " to " "
Automatic operation
Indoor unit quiet operation. When the airflow is set to
" ", the noise from the unit will be reduced.
Note: When using drying operation mode, you CANNOT adjust the
airflow rate setting.
4 Operation
Operation manual
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FTXP20~71L2V1B
R32 split series
3P511999-1C – 2018.01
To adjust the airflow rate
1 Press to change the airflow setting as follows:
4.3.3 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 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.
Note: 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
a Flap range in cooling or drying operation
b Flap range in heating operation
c Flap range in fan only operation
To adjust the airflow direction
1 To use auto swing, press .
Result: will appear on the LCD.
Result: The flap (horizontal blade) will begin to swing.
2 To use fixed position, press when the flap reaches the
desired position.
Result: disappears from the LCD.
To adjust the louvers (vertical blades)
1 Hold 1 or both knobs and move the louvers.
a Knobs
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.
4.3.4 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.
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
1 Press 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.
2 Press to stop.
Result: The flap will return to the position from before the Comfort
airflow mode; disappears from the LCD.
4.3.5 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
1 Press to start.
Result: is displayed on the LCD. Powerful operation runs
for 20minutes; after that, operation returns to the previously set
mode.
Mode Airflow rate
Cooling/Heating/Automatic To maximize the cooling/
heating effect, the capacity of
outdoor unit is increased.
The airflow rate is fixed to the
maximum setting.
The temperature and airflow
settings CANNOT be changed.
Drying The temperature setting is
lowered by 2.5°C.
The airflow rate is slightly
increased.
Fan only The airflow rate is fixed to the
maximum setting.
4 Operation
Operation manual
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FTXP20~71L2V1B
R32 split series
3P511999-1C – 2018.01
2 Press to stop.
Result: disappears from the LCD.
Note: Powerful operation can only be set when the unit is running.
Press to cancel this mode; disappears from the LCD.
4.3.6 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
1 Press to start.
Result: is displayed on the LCD.
Note: Econo operation is NOT available in Fan only mode.
2 Press to stop.
Result: disappears from the LCD.
a
A
B
b
c
d
A Running current and power consumption
B Time
a Maximum during normal operation
b Maximum during Econo operation
c Normal operation
d Econo operation
The diagram can be used for illustrative purposes only.
The maximum running current and power consumption of the air
conditioner in Econo operation varies with the connected outdoor
unit.
4.3.7 OFF/ON timer operation
Timer functions are useful for automatically switching the air
conditioner on/off 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 user interface.
To start/stop OFF timer operation
Use this feature if the unit is operating and you want to stop
operation after a certain time.
1 Press .
Result: is displayed on the LCD and the timer lamp
lights up.
2 Press 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.
3 To 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.
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.
1 Press .
Result: is displayed on the LCD and the timer lamp
lights up.
2 Press 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.
3 To cancel the setting, press .
Result: and the time setting disappear from the LCD and the
timer lamp goes off.
To combine OFF timer and ON timer
1 To set the timers, refer to "To start/stop OFF timer operation"on
page7 and "To start/stop ON timer operation"on page7.
Result: and are displayed on the LCD.
Example:
2 If is set when the unit is operating.
Result: Operation stops in 1 hour and then starts 7 hours
later.
3 If is set when the unit is NOT
operating.
5 Energy saving and optimum operation
Operation manual
8
FTXP20~71L2V1B
R32 split series
3P511999-1C – 2018.01
Result: Operation starts in 2 hours and then stops 3 hours
later.
5 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.
WARNING
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.
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.
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
Do NOT place a flammable spray bottle near the air
conditioner and do NOT use sprays. Doing so may result in
a fire.
Observe the following precautions to ensure the system operates
properly.
Prevent direct sunlight from entering a room during cooling
operation by using curtains or blinds.
Ventilate often. Extended use requires special attention to
ventilation.
Keep doors and windows closed. If the doors and windows remain
open, air will flow out of your room causing a decrease in the
cooling or heating effect.
Be careful NOT to cool or heat too much. To save energy, keep
the temperature setting at a moderate level.
NEVER place objects near the air inlet or the air outlet of the unit.
Doing so may cause a reduced heating/cooling effect or stop
operation.
Turn the breaker off when the unit is NOT used for longer periods
of time. If the breaker is on, the unit consumes electricity. Before
restarting the unit, turn the breaker on 6 hours before operation to
ensure smooth running.
Condensation may form if the humidity is above 80% or if the
drain outlet gets blocked.
Adjust the room temperature properly for a comfortable
environment. Avoid excessive heating or cooling. Notice that it
may take some time for the room temperature to reach the set
temperature. Consider using the timer setting options.
Adjust the air flow direction to avoid cool air from gathering on the
floor or warm air against the ceiling. (Up during cooling or dry
operation to the ceiling and down during heating operation.)
Avoid direct air flow to room inhabitants.
Operate the system within the recommended temperature range
(26~28°C for cooling and 20~24°C for heating) to save energy.
6 Maintenance and service
6.1 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
In Europe, the greenhouse gas emissions of the total
refrigerant charge in the system (expressed as tonnes CO
2
equivalent) is used to determine the maintenance intervals.
Follow the applicable legislation.
Formula to calculate the greenhouse gas emissions:
GWP value of the refrigerant × Total refrigerant charge [in
kg] / 1000
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 authorized installer or
service agent.
We recommend performing maintenance at least once a
year. However, applicable legislation might require shorter
maintenance intervals.
6 Maintenance and service
Operation manual
9
FTXP20~71L2V1B
R32 split series
3P511999-1C – 2018.01
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.
WARNING
To prevent electric 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 carefull with ladders when working in high places.
6.2 To clean the indoor unit and user
interface
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.
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.
1 Clean with a soft cloth. If it is difficult to remove stains, use
water or a neutral detergent.
6.3 To clean the front panel
1 Clean the front panel with a soft cloth. If it is difficult to remove
stains, use water or a neutral detergent.
6.4 To open the front panel
1 Hold the front panel by the panel tabs on both sides and open
it.
6.5 To clean the air filters
1 Push the tab at the centre of each air filter, then pull it down.
2 Pull out the air filters.
1
2
Note: (class 50~71) The titanium apatite deodorizing filter MUST
be removed before cleaning the air filter.
3 Remove the titanium apatite deodorizing filter from all 4 claws.
a Claw
4 Wash the air filters with water or clean them with a vacuum
cleaner.
5 Soak in lukewarm water for about 10 to 15 minutes.
7 Troubleshooting
Operation manual
10
FTXP20~71L2V1B
R32 split series
3P511999-1C – 2018.01
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 deodorizing
filter.
It is recommended to clean the air filters every 2
weeks.
6.6 To clean the titanium apatite
deodorizing filter
INFORMATION
Clean the filter with water every 6 months.
1 Remove the titanium apatite deodorizing filter from the tabs
(class 20~35) or all 4 claws (class 50~71).
Class 20~35
Class 50~71
a Claw
2 Remove the dust from the filter with a vacuum cleaner.
3 Soak the filter for 10 to 15minutes in warm water.
Note: (class 50~71) Do NOT remove the filter from the frame.
Class 20~35 Class 50~71
4 After washing, shake off remaining water and dry the filter in the
shade. Do NOT wring out the filter when removing water.
6.7 To replace the titanium apatite
deodorizing filter
INFORMATION
Replace the filter every 3 years.
To order titanium apatite deodorizing filters, contact your dealer.
Item Part number
Titanium deodorizing filter 1 set KAF970A46
1 Remove the filter from the tabs (class 20~35) or frame (class
50~71) 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.
6.8 To close the front panel
1 Install the air filters and the titanium apatite deodorizing filters
back in their original positions.
2 Gently press the front panel at both sides and at the center until
it clicks.
6.9 To take following items into
account before a long idle period
1 Set the mode to fan only by pressing button to dry the
inside of the unit.
2 After operation stops, turn the breaker off.
3 Clean the air filters and replace them in their original position.
4 Remove the batteries from the user interface.
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.
7 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, electric shock or fire. Contact your dealer.
The system MUST be repaired by a qualified service person:
7 Troubleshooting
Operation manual
11
FTXP20~71L2V1B
R32 split series
3P511999-1C – 2018.01
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 properly operate except for the above
mentioned cases and none of the above mentioned malfunctions is
evident, investigate the system according to the following
procedures.
Malfunction Measure
If the system does
NOT operate at all.
Check if there is no power failure. Wait
until power is restored. If a power failure
occurs during operation, the system
automatically restarts immediately after
power is restored.
Check if no fuse has blown or breaker is
activated. Change the fuse or reset the
breaker if necessary.
Check the batteries of the user interface.
The system suddenly
stops operating.
Check if the air inlet or outlet of the
outdoor or indoor unit is NOT blocked by
obstacles. Remove any obstacles and
make sure the air can flow freely.
The air conditioner may stop operating
after sudden large voltage fluctuations to
protect the system. It automatically
resumes operation after about 3minutes.
The system operates,
but cooling or heating
is insufficient.
Check the airflow rate setting. Refer to
"4.3.2Airflow rate"on page5.
Check the temperature setting. Refer to
"4.3.1 To start/stop operation and to set
the temperature"on page5.
Check if the airflow direction setting is
appropriate. Refer to "4.3.3 Airflow
direction"on page6.
Check if the air inlet or outlet of the
outdoor or indoor unit is NOT blocked by
obstacles. Remove any obstacles and
make sure the air can flow freely.
The system operates,
but cooling or heating
is insufficient (air is
NOT blown from the
unit).
The air conditioner may be warming up
for heating operation. Wait for 1 to 4
minutes.
The unit may be in defrost operation.
The system operates,
but cooling or heating
is insufficient (air is
blown from the unit).
Check if the air filters are clogged. Clean
the air filters. See "6 Maintenance and
service"on page8.
Check for open doors or windows. Close
doors and windows to prevent wind from
coming in.
Check if the unit operates in Econo
operation. Refer to "4.3.6 Econo
operation"on page7.
Check if there is any furniture directly
under or next to the indoor unit. Move the
furniture.
Malfunction Measure
An abnormal function
happens during
operation.
The air conditioner may malfunction
because of lightning or radio waves. Turn
the breaker OFF and back ON.
The unit does NOT
receive signals from
the user interface.
Check the batteries of the user interface.
Make sure that the transmitter is NOT
exposed to direct sunlight.
Check if there are any electronic starter
type fluorescent lamps in the room.
Contact your dealer.
The user interface
display is blank.
Replace the batteries of the user interface.
An error code is
displayed on the user
interface.
Consult your local dealer. Refer to
"7.2Solving problems based on error
codes"on page12 for a detailed list of
error codes.
Other electric
appliances start to
operate.
If the user interface signals operate other
electric appliances, move the other
appliances away, and contact your dealer.
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).
7.1 Symptoms that are NOT system
malfunctions
The following symptoms are NOT system malfunctions:
7.1.1 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.
7.1.2 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).
7.1.3 Symptom: A ticking sound is heard
This sound is generated when the unit slightly expands or contracts
with changes in temperature.
7.1.4 Symptom: A whistling sound is heard
This sound is generated by the refrigerant flowing during defrost
operation.
7.1.5 Symptom: A clicking sound during
operation or idle time is heard
This sound is generated when the refrigerant control valves or
electrical parts operate.
7.1.6 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.
7.1.7 Symptom: The units can give off odours
The unit can absorb the smell of rooms, furniture, cigarettes, etc.,
and then emit it again.
8 Disposal
Operation manual
12
FTXP20~71L2V1B
R32 split series
3P511999-1C – 2018.01
7.1.8 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.
7.2 Solving problems based on error
codes
When a problem happens, an error code appears on the user
interface. It is important to understand the problem and to take
measures before resetting an error code. This should be done by a
licensed installer or by your local dealer.
This chapter gives you an overview of all error codes and the
content of the error code as it appears on the user interface.
For a more detailed troubleshooting guideline for each error, please
see the service manual.
Fault diagnosis by user interface
The user interface can receive an error code from the indoor unit
referring to the fault. 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.
To see the error code on the user interface:
1 Hold for about 5seconds.
Result: blinks in the temperature display section.
2 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 the cancel
button 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
Error code Description
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
8 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.
3P511999-1C 2018.01
Copyright 2017 Daikin
5

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