1.1 Validity, storage and relaying of the instructions
These instructions apply to the room thermostat EKWCTRDI1V3
Digital Thermostat 230 V.
The instructions include information necessary for the operation
of the device. The instructions must be read completely and
thoroughly before commencing any work with the device. They
must be kept and handed over to future users. You can view
and download these instructions and the associated installation
instructions under https://qr.daikin.eu?N=EKWCTRDI1V3.
1.2 Symbols
The following symbols are used in this manual:
User action Result of an action
• List without fi xed order
1., 2. List with fi xed order
Hazard symbols: Identifi es a hazard
Information: Identifi es important or useful information
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Safety
2 Safety
2.1 Intended use
The room thermostat controls thermal actuators connected in
a room-by-room temperature control system directly or via a
connection unit. The unit
• is a fi xed installation,
• measures the actual temperature (room temperature),
• can be used to set the target temperature (comfort
temperature),
• can be used to control the actual temperature by activating
actuators in heating/cooling operation in a predetermined
zone.
Every other use, modifi cation and conversion is expressly
forbidden and leads to dangers the manufacturer cannot be
held liable for.
2.2 General safety notes
All safety notes in these instructions must be observed in order
to avoid accidents with injury or property damage.
• Only an authorized electrician may open the device. It may
only be opened in de-energised state.
• Always disconnect from the mains network and secure
against unintended activation before opening.
• Only use the device if it is in perfect working condition state.
• Observe the performance limits of the device and the
environmental conditions.
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Safety
• This device is not intended to be used by persons (including
children) with restricted physical, sensory or mental skills
or who lack the necessary experience or knowledge.
If necessary, these persons must be supervised by a person
responsible for their safety or receive instructions from this
person on how to use this unit.
• Ensure that children do not play with this device. Children
must be monitored if necessary.
• In case of emergency, disconnect the complete room-byroom temperature control system.
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Device overview
3 Device overview
Display
Dial with turn/press
mechanism and fi ne
ratchet
Room thermostat
Symbol MeaningSymbol Meaning
Lifestyle functions
menu
Settings menu
HeatingMin. temperature
Operating lockMax. temperature
Temperature unit
Target/
actual temp.
Switching off
Automatic operation
Day operationBack
Night operation
Service menuDisplay illum.
CoolingFactory settings
6
Make/confi rm
entry
Correction of actual
temp. measuring
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4 Operation
WARNING
Danger to life in case of swallowing!
The dial can be taken off ; children might swallow it.
Do not leave the dial near children.
4.1 Setting the target temperature
+-
The target temperature is set by turning the dial to the
left or to the right. Rotating to the left decreases the
temperature, rotating to the right increases it.
Comfort temperatures for day and night operation can
be stored. A manual or automatic change between
the operating modes "day operation" and "night
operation" changes to the stored temperature. The
target temperature can be changed with the dial,
independently of the active operating mode. You can
fi nd more information in the section Lifestyle functions
menu.
Operation
4.2 Navigation and settings
The navigation and settings of the room thermostat are
performed with the dial:
By pressing the dial, menus are opened and functions
are activated, and changed settings are applied.
+-
By rotating the dial, settings can be adjusted and
functions and menus can be chosen.
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Operation
A main level and three menus are available for navigation and
settings:
Main level
In the main level, all room thermostats show the current actual
temperature as well as active functions.
Menu selection
Lifestyle functions
Contains all important basic functions.
Settings
Includes extended functions and numerous possible
settings.
Service
Includes various system parameters. An optimal tuning
of the overall system can be obtained by adjusting
individual settings.
Back
Leaves the menu selection and returns to the main
level.
• A selected menu or function is displayed by a fl ashing
symbol.
• If no operation is performed, the display returns to the
main level after approximately 5 seconds.
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Operation
4.2.1 Lifestyle functions menu
This menu allows the setting of the lifestyle functions. The
settings shown in the graphic below. The following pages
contain detailed information.
• When selecting an operating mode (day, night,
automatic operation) only the inactive modes are
available for selection.
• If no operation is performed, the display returns to the
main level after approximately 30 seconds.
+-
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Operation
Open the menu selection by pressing the dial. Select the menu Lifestyle functions. Activate the menu by pressing again. Select the desired function.
DescriptionSteps
Day operation
Adjustment to the comfort temperature set in the Settings menu.
Night operation Confi rm the selection
Adjustment to the reduction temperature set in the Settings menu.
Automatic operation
The signal of an external system
clock (e. g. from a Control room thermostat) activates day or night operation.
Confi rm the selection
by pressing the dial.
Day operation is activated.
The main level is dis-
played.
by pressing.
Night operation is activa-
ted.
The main level is dis-
played.
Confi rm the selection
by pressing.
Automatic operation is
activated.
The main level is dis-
played.
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DescriptionSteps
Operation
Operating lock
Locks the room thermostat.
The actual temperature and
all active functions are still displayed,
but the possibility to change the
target temperature and the operation
are deactivated.
Switching off
Switches the room
thermostat off . Temperature
control is deactivated. The protective
functions (valve protection and
antifreeze protection) remain active.
Activate
Confi rm the selection
by pressing.
The operating lock is
activated.
The symbol
played.
The main level is dis-
played.
Deactivate
Press the dial for
> 5 seconds.
The symbol is deactiva-
ted, operation is possible
again.
Confi rm the selection
by pressing the dial.
All functions are deacti-
vated.
The symbol is displayed.
The actual temperature is
displayed
is dis-
Back
Leaves the menu.
Switching on
Press the dial for
> 5 seconds.
The main level is dis-
played.
All active functions are
displayed.
Confi rm the selection
by pressing.
The display returns to the
main level.
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Operation
4.2.2 Settings menu
Extended settings can be made in this menu. The following
pages contain detailed information.
If no operation is performed, the display returns to the
main level after approximately 30 seconds.
+-
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Open the menu selection by pressing. Select the settings menu. Activate the menu by pressing again. Select the desired setting.
DescriptionSteps
Operation
Comfort temperature
Heating
Sets the target temperature
for day operation.
Reduction temperature
Heating
Sets the target temperature
for night operation.
Comfort temperature
Cooling
Sets the target temperature
for day operation.
Confi rm the selection
by pressing.
Set the target tempe-
rature.
Confi rm the entry by
pressing.
Can be found in the
Settings menu.
Confi rm the selection
by pressing.
Set the target tempe-
rature.
Confi rm the entry.
Can be found in the
Settings menu.
Confi rm the selection
by pressing.
Set the target tempe-
rature.
Confi rm the entry.
Can be found in the
Settings menu.
Reduction temperature
Cooling
Sets the target temperature
for night operation.
Confi rm the selection
by pressing.
Set the target tempe-
rature.
Confi rm the entry.
Can be found in the
Settings menu.
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Operation
DescriptionSteps
Target temperature
limitation
Setting of the maximum and
minimum settable target
temperature.
Temperature correction
Corrects a deviating
measurement of the actual
temperature of the internal sensor
by ±2 °C in 0.1 °C increments.
Display illumination
Sets the brightness of the
display illumination in fi ve
levels:
0 Off
25 Level 1
50 Level 2
75 Level 3
100 Level 4
Confi rm the selection
by pressing.
Set the minimum
temperature.
Confi rm the entry. Set the maximum
temperature.
Confi rm the entry.
Can be found in the
Settings menu.
Confi rm the selection
by pressing.
Set the correction
value.
Confi rm the entry.
Can be found in the
Settings menu.
Confi rm the selection
by pressing.
Set the brightness of
the display illumination.
Confi rm the entry.
The Settings menu is
displayed.
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The setting is shown on the
time display.
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DescriptionSteps
Operation
Factory settings
Restores the factory
settings. All previously
made settings will be reset.
Back
Leaves the menu.
Confi rm the selection
by pressing.
Select the entry “Yes”
for resetting.
Press the dial for
5 seconds.
A restart is performed.
The main level is displayed subsequently.
The entry “No” cancels
the process.
Confi rm the selection
by pressing.
The main level is dis-
played.
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Operation
4.2.3 Service menu
CAUTION
Damage to the installation!
Faulty confi guration can lead to errors and installation damage.
Only authorised specialists may perform settings.
An optimal tuning of the overall system can be reached by
adjusting settings of the system parameters. In order to avoid
a faulty confi guration, this menu is protected by a 4-digit PIN
(standard: 1234).
Open the menu selection by pressing. Select the Parameters menu. Activate the menu by pressing again. Select the menu entry “Code”. Activate the PIN entry by pressing. Enter the 4-digit PIN (standard: 1234). Select the individual
digits by rotating and confi rm by pressing.
Start the entry by activating the function “PAR”. Select the individual digits of the parameter number by
rotating and confi rm by pressing.
Activate the entry by selecting “SET” and by pressing. Perform the setting according to the subsequent parameter
list.
Return to the main level by selecting “BACK” 2 times.
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If no operation is performed, the display returns to the
main level after approximately 30 seconds.
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No.DescriptionSetting
Operation
Heating system
Sets the existing heating system:
• Floor heating, standard (FBH St.)
010
• Floor heating, low energy (FBH NE)
• Radiator (RAD)
• Convector, passive (KON pas)
• Convector, active (KON akt)
Disable cooling
020
Deactivates the cooling function.
Operating lock
030
Protects the deactivation of the operating
lock with a PIN.
PIN operating lock
Sets the PIN for parameter 30.
If PIN is unknown:
De-energise the device.
031
Hold down the dial and apply
voltage again until the software
version is shown on the display
and goes out again.
Press the dial again until the
symbol
disappears.
0 = FBH St.
1 = FBH NE
2 = RAD
3 = KON pas
4 = KON akt
Standard: 0
0 = activated
1 = deactivated
Standard: 0
0 = deactivated
1 = activated
Standard: 0
0 ... 9999
Standard: 1234
Restricted operation
Switches the room control unit operating
032
lock between “Standard” and “Restricted
operation”.
Duration of the display illumination
Sets the duration of further illumination of
050
the display after use.
Signalling of switching output
090
Signals the control of switching outputs by
a fl ashing heating resp. cooling symbol.
0 = deactivated
1 = activated
Standard: 0
0 ... 30 sec.
in 5 second increments
Standard: 15 sec.
0 = deactivated
1 = activated
Standard: 1
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Operation
No.DescriptionSetting
Control direction switching output
Sets the control direction of connected
110
actuators:
• Normally closed (NC)
• Normally open (NO)
Antifreeze temperature
Activates the antifreeze protection function
161
when the temperature falls below the set
temperature.
Valve protection function
190
Cyclic opening of the valve in order to
avoid clogging.
Valve activation duration
191
Time for triggering actuators for performing
the valve protection function.
0 = NC
1 = NO
Standard: 0
5 ... 10 °C
Standard: 5
0 ... 28 days
Standard: 14
0 ... 10 minutes
Standard: 5 min
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Comfort and protection functions
5 Comfort and protection functions
5.1 Comfort functions
In order to increase user comfort, the room thermostat includes
functions for controlling the comfort temperature.
5.1.1 Heating/cooling change-over
This function switches the entire installation between heating
and cooling using an external signal.
5.1.2 Restricted Mode
The restricted mode only allows the target temperature to be
changed.
Activate mode
Activation is as follows:
Activate parameter 032 in the Service menu (value: 1).
The operating mode active before restarting is continued
for restricted operation.
De-energise the device. Apply voltage again. The restricted mode is activated.
Deactivate mode
De-energise the device. Hold down the dial and apply voltage again until the software
version is shown on the display and disappears again.
In the Service menu, deactivate parameter 032 (value: 0). The device is permanently in standard operation.
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Comfort and protection functions
Temporarily deactivate mode
The restricted mode can be temporarily deactivated to use or
activate disabled functions of the device during this time. After
a voltage interruption of the device, the restricted mode is
reactivated.
De-energise the device.
Hold down the dial and apply voltage again until the software
version is shown on the display and disappears again.
The device is temporarily in standard operation until the next
power interruption occurs.
5.2 Protection functions
The room thermostat is equipped with protection functions for
avoiding damage to the overall installation.
5.2.1 Valve protection function
In periods without valve activation (e. g. outside the heating
period), all valves are opened cyclically. This avoids a clogging
of the valves (parameters 190 and 191).
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5.2.2 Antifreeze protection
Independent from the operating mode, the room thermostat
is equipped with an antifreeze function (parameter 161).
When the temperature falls below the antifreeze protection
temperature, all connected actuators are activated and the
valves are opened.
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6 Maintenance
6.1 Troubleshooting
DisplayMeaningPossible solution
Maintenance
Measuring
temperature of
internal sensor
exceeded
0010Malfunction in
internal sensor
Internal sensor/room sensor
• Remove external heat sources in
the direct environment and wait
until the sensor has cooled down
again.
• Reposition the room sensor if
necessary.
• Have the room thermostat/room
sensor checked and replaced if
necessary.
• Reset to factory settings.
• Have the room thermostat
checked and replaced if
necessary.
6.2 Cleaning
Only use a dry and solvent-free soft cloth for cleaning.