Daikin EKRCTRDI3BA User guide

Installer and user reference guide
Daikin Home Controls
Room Thermostat - 2
EKRCTRDI3BA

2
1
AF
C
D
E
B

4
3
G
H
IJ
I
J

6
5
K

8
7

6
Package contents
Quantity Description
1Daikin Home Controls
Room Thermostat - 2
1 Clip-on frame
1 Mounting plate
2 Double-sided adhesive strips
2 Screws 3.0 x 30 mm
2 Plugs 5 mm
2 1.5 V LR03/micro/AAA batteries
1 Installation and operation manual
Documentation © 2022 Daikin Europe N.V., Belgium
All rights reserved. This manual may not be reproduced in any
format, either in whole or in part, nor may it be duplicated or edited
by electronic, mechanical or chemical means, without the written
consent of the publisher.
Typographical and printing errors cannot be excluded. However,
the information contained in this manual is reviewed on a regular
basis and any necessary corrections will be implemented in the next
edition. We accept no liability for technical or typographical errors or
the consequences thereof.
All trademarks and industrial property rights are acknowledged.
Printed in Hong Kong.
Changes may be made without prior notice as a result of technical
advances.
4P687366-1
2022.04

7
Package contents
Quantity Description
1Daikin Home Controls
Room Thermostat - 2
1 Clip-on frame
1 Mounting plate
2 Double-sided adhesive strips
2 Screws 3.0 x 30 mm
2 Plugs 5 mm
2 1.5 V LR03/micro/AAA batteries
1 Installation and operation manual
Documentation © 2022 Daikin Europe N.V., Belgium
All rights reserved. This manual may not be reproduced in any
format, either in whole or in part, nor may it be duplicated or edited
by electronic, mechanical or chemical means, without the written
consent of the publisher.
Typographical and printing errors cannot be excluded. However,
the information contained in this manual is reviewed on a regular
basis and any necessary corrections will be implemented in the next
edition. We accept no liability for technical or typographical errors or
the consequences thereof.
All trademarks and industrial property rights are acknowledged.
Printed in Hong Kong.
Changes may be made without prior notice as a result of technical
advances.
4P687366-1
2022.04
Table of contents
1 Information about this manual.................................. 9
2 Hazard information................................................... 9
3 Daikin Home Controls ............................................ 11
4 Function and accessory overview .......................... 12
5 Start-up................................................................... 14
5.1 Connecting DHC accessories ..................................... 14
5.1.1 Connecting to the DHC Access Point .............. 14
5.2 Mounting ..................................................................... 16
5.2.1 Adhesive strip mounting .................................. 16
5.2.2 Screw mounting............................................... 17
5.2.3 Flush-mounted box mounting .......................... 18
6 Conguration.......................................................... 20
6.1 Automatic mode .......................................................... 21
6.2 Manual mode .............................................................. 21
6.3 Holiday mode .............................................................. 21
6.4 Operating lock (not yet available)................................ 21
6.5 Programming a schedule ............................................ 22
6.5.1 Heating or cooling............................................ 22
6.5.2 Week schedule ................................................ 22
6.5.3 Optimum start/stop function............................. 22
6.6 O󰀨settemperature(notyetavailable)......................... 22
6.7 Selecting a temperature display (not yet available) .... 23
7 Operation................................................................ 24
8 Replacing batteries................................................. 24

8
Information about this manual
1 Information about this manual
Read this manual carefully before beginning operation with
your Daikin Home Controls (DHC) accessories. Keep the
manual so you can refer to it at a later date if you need to. If
you hand over the accessory to other persons for use, hand
over this manual as well.
Symbols used:
Attention!
This indicates a hazard.
Please note:
This section contains important additional informa-
tion.
2 Hazard information
Do not open the accessory. It does not contain any
parts that can be maintained by the user. In the
event of an error, please have the accessory
checked by an expert.
For safety and licensing reasons (CE), unautho-
rizedchangeand/ormodicationoftheaccessory
is not permitted.
9 Troubleshooting...................................................... 27
9.1 Weak battery ............................................................... 27
9.2 Duty cycle ................................................................... 27
9.3 Errorcodesandashingsequences........................... 29
10 Restore factory settings.......................................... 31
11 Maintenance and cleaning ..................................... 32
12 General information about radio operation............. 33
13 Technicalspecications.......................................... 34

9
Information about this manual
1 Information about this manual
Read this manual carefully before beginning operation with
your Daikin Home Controls (DHC) accessories. Keep the
manual so you can refer to it at a later date if you need to. If
you hand over the accessory to other persons for use, hand
over this manual as well.
Symbols used:
Attention!
This indicates a hazard.
Please note:
This section contains important additional informa-
tion.
2 Hazard information
Do not open the accessory. It does not contain any
parts that can be maintained by the user. In the
event of an error, please have the accessory
checked by an expert.
For safety and licensing reasons (CE), unautho-
rizedchangeand/ormodicationoftheaccessory
is not permitted.

10
Hazard information Daikin Home Controls
The accessory may only be operated in a dry and
dust-free environment and must be protected from
the e󰀨ects of moisture, vibrations, solar or other
types of heat radiation, cold and mechanical loads.
The accessory is not a toy; do not allow children to
play with it. Do not leave packaging material lying
around. Plastic lms/bags, pieces of polystyrene,
etc. can be dangerous in the hands of a child.
We do not assume any liability for damage to prop-
erty or personal injury caused by improper use or
the failure to observe the hazard information. In
such cases, any claim under warranty is extin-
guished! For consequential damages, we assume
no liability!
The accessory may only be operated within resi-
dential buildings.
Using the accessory for any purpose other than
that described in this manual does not fall within
the scope of intended use and shall invalidate any
warranty or liability.
Always keep a minimum distance of 50 cm be-
tween the DHC accessories.
3 Daikin Home Controls
This accessory is part of the DHC ecosystem and commu-
nicates with a dedicated wireless connection.
Allaccessoriesofthesystemcanbeconguredcomfort-
ably and individually via the ONECTA app. The available
functions provided by the DHC ecosystem in combina-
tion with other accessories are described in the DHC
Application Guide.
All current technical documents and updates can be found
on the product pages:
https://qr.daikin.eu/?N=EKRCTRDI3BA

11
Hazard information Daikin Home Controls
The accessory may only be operated in a dry and
dust-free environment and must be protected from
the e󰀨ects of moisture, vibrations, solar or other
types of heat radiation, cold and mechanical loads.
The accessory is not a toy; do not allow children to
play with it. Do not leave packaging material lying
around. Plastic lms/bags, pieces of polystyrene,
etc. can be dangerous in the hands of a child.
We do not assume any liability for damage to prop-
erty or personal injury caused by improper use or
the failure to observe the hazard information. In
such cases, any claim under warranty is extin-
guished! For consequential damages, we assume
no liability!
The accessory may only be operated within resi-
dential buildings.
Using the accessory for any purpose other than
that described in this manual does not fall within
the scope of intended use and shall invalidate any
warranty or liability.
Always keep a minimum distance of 50 cm be-
tween the DHC accessories.
3 Daikin Home Controls
This accessory is part of the DHC ecosystem and commu-
nicates with a dedicated wireless connection.
Allaccessoriesofthesystemcanbeconguredcomfort-
ably and individually via the ONECTA app. The available
functions provided by the DHC ecosystem in combina-
tion with other accessories are described in the DHC
Application Guide.
All current technical documents and updates can be found
on the product pages:
https://qr.daikin.eu/?N=EKRCTRDI3BA

12
Function and accessory overview Function and accessory overview
4 Function and accessory overview
The DHC Room Thermostat enables time-controlled reg-
ulation of your conventional radiators with DHC Radiator
Thermostats, or of your oor heating in combination with
DHC Floor Heating Controllers, and adjusts heating phases
to your individual needs.
The DHC Room Thermostat measures the room tempera-
ture and humidity and transmits these at intervals to the
DHC Radiator Thermostats or DHC Floor Heating Control-
lers enabling room temperatures to be precisely controlled.
You can comfortably control the DHC Room Thermostat in
combination with a DHC Access Point via the free app.
Mounting and removal are particularly easy using the clip-
on frame supplied. It is also possible to integrate the DHC
Room Thermostat into existing switches.
Accessory overview (see gure 1):
(A) Clip-on frame
(B) Electronic unit (thermostat)
(C) Display
(D) System button and LED
(E) Control wheel
(F) Mounting plate
Display overview (see gure 2):
Setpoint/actual temperature
Humidity
Warning about condensation
Open window symbol
Battery symbol
Radio transmission
Boost function
Manual mode*
Automatic mode*
Holiday mode*
Heating
Cooling
Operating lock*
Setpoint temperature
* See „6Conguration“onpage20

13
Function and accessory overview Function and accessory overview
4 Function and accessory overview
The DHC Room Thermostat enables time-controlled reg-
ulation of your conventional radiators with DHC Radiator
Thermostats, or of your oor heating in combination with
DHC Floor Heating Controllers, and adjusts heating phases
to your individual needs.
The DHC Room Thermostat measures the room tempera-
ture and humidity and transmits these at intervals to the
DHC Radiator Thermostats or DHC Floor Heating Control-
lers enabling room temperatures to be precisely controlled.
You can comfortably control the DHC Room Thermostat in
combination with a DHC Access Point via the free app.
Mounting and removal are particularly easy using the clip-
on frame supplied. It is also possible to integrate the DHC
Room Thermostat into existing switches.
Accessory overview (see gure 1):
(A) Clip-on frame
(B) Electronic unit (thermostat)
(C) Display
(D) System button and LED
(E) Control wheel
(F) Mounting plate
Display overview (see gure 2):
Setpoint/actual temperature
Humidity
Warning about condensation
Open window symbol
Battery symbol
Radio transmission
Boost function
Manual mode*
Automatic mode*
Holiday mode*
Heating
Cooling
Operating lock*
Setpoint temperature
* See „6Conguration“onpage20

14
Start-up Start-up
5 Start-up
5.1 Connecting DHC accessories
Read this entire section before starting to
connect other accessories.
To integrate the DHC Room Thermostat into your ecosys-
tem and enable it to communicatie with other accessories,
youmustconnectthemrst.
You can connect the DHC Room Thermostat to the DHC
Access Point via the ONECTA app. It is also possible to
create a direct connection to other DHC accessories. For
further information on direct connection, see the DHC
Application Guide.
5.1.1 Connecting to the DHC Access Point
First set up your DHC Access Point via the
ONECTA app to enable operation of other DHC ac-
cessories within your ecosystem. For further infor-
mation, see the manual of the DHC Access Point.
To connect the DHC Room Thermostat to the DHC Access
Point, proceed as follows:
1. Open the ONECTA app.
2. Click on the plus symbol (+).
3. Select the menu item Add Daikin Home Controls.
4. Select Add DHC Accessory.
5. Remove the electronic unit (B) from the frame:
grab the sides of the electronic unit and pull it from
the mounting plate (see gure 6).
6. Turn over the electronic unit (B).
7. Remove the insulation strip from the battery com-
partment.
» Connection mode remains activated for 3 minutes.
You can manually start the connection mode for
another 3 minutes by pressing the system button
(D)briey(see gure 8).
8. Follow the instructions in the app.

15
Start-up Start-up
5 Start-up
5.1 Connecting DHC accessories
Read this entire section before starting to
connect other accessories.
To integrate the DHC Room Thermostat into your ecosys-
tem and enable it to communicatie with other accessories,
youmustconnectthemrst.
You can connect the DHC Room Thermostat to the DHC
Access Point via the ONECTA app. It is also possible to
create a direct connection to other DHC accessories. For
further information on direct connection, see the DHC
Application Guide.
5.1.1 Connecting to the DHC Access Point
First set up your DHC Access Point via the
ONECTA app to enable operation of other DHC ac-
cessories within your ecosystem. For further infor-
mation, see the manual of the DHC Access Point.
To connect the DHC Room Thermostat to the DHC Access
Point, proceed as follows:
1. Open the ONECTA app.
2. Click on the plus symbol (+).
3. Select the menu item Add Daikin Home Controls.
4. Select Add DHC Accessory.
5. Remove the electronic unit (B) from the frame:
grab the sides of the electronic unit and pull it from
the mounting plate (see gure 6).
6. Turn over the electronic unit (B).
7. Remove the insulation strip from the battery com-
partment.
» Connection mode remains activated for 3 minutes.
You can manually start the connection mode for
another 3 minutes by pressing the system button
(D)briey(see gure 8).
8. Follow the instructions in the app.

16
Start-up Start-up
5.2 Mounting
Please read this entire section before st-
arting to mount the accessory.
You can use the supplied clip-on frame (A) to mount the
DHC Room Thermostat or easily integrate it into an existing
switch.
If you want to mount the DHC Room Thermostat to a wall
with the supplied clip-on frame, you can use
• the supplied double-sided adhesive strips, or
• the supplied screws.
You can also mount the DHC Room Thermostat on a
ush-mountedbox.
5.2.1 Adhesive strip mounting
To mount the DHC Room Thermostat using the adhesive
strips, proceed as follows:
1. Choose a site for installation.
Make sure that the mounting surface is smooth,
solid, non-disturbed, free of dust, grease and sol-
vents and not too cold to ensure long-time adher-
ence.
2. Fix the adhesive strips (G) on the back side of the
mounting plate (F) in the provided area. Make sure
that you can read the letters on the back side (H)
(see gure 3) and that the clips on the mounting
plate latch into the openings on the DHC Room
Thermostat.
3. Remove the protective lm from the adhesive
strips.
4. Press the assembled DHC Room Thermostat with
the back side to the wall .
5.2.2 Screw mounting
For mounting the DHC Room Thermostat with screws, pro-
ceed as follows:
1. Choose a site for installation.
Make sure that no electricity or similar lines run in
the wall at this location!
2. Position the mounting plate (F) on the desired site
on the wall. Make sure that the arrow on the mount-
ing plate is pointing upwards.
3. Use a pen to mark the positions of the screw holes
(J) (diagonally opposite) in the mounting plate on
the wall (see gure 4).
4. Drill the marked holes.

17
Start-up Start-up
5.2 Mounting
Please read this entire section before st-
arting to mount the accessory.
You can use the supplied clip-on frame (A) to mount the
DHC Room Thermostat or easily integrate it into an existing
switch.
If you want to mount the DHC Room Thermostat to a wall
with the supplied clip-on frame, you can use
• the supplied double-sided adhesive strips, or
• the supplied screws.
You can also mount the DHC Room Thermostat on a
ush-mountedbox.
5.2.1 Adhesive strip mounting
To mount the DHC Room Thermostat using the adhesive
strips, proceed as follows:
1. Choose a site for installation.
Make sure that the mounting surface is smooth,
solid, non-disturbed, free of dust, grease and sol-
vents and not too cold to ensure long-time adher-
ence.
2. Fix the adhesive strips (G) on the back side of the
mounting plate (F) in the provided area. Make sure
that you can read the letters on the back side (H)
(see gure 3) and that the clips on the mounting
plate latch into the openings on the DHC Room
Thermostat.
3. Remove the protective lm from the adhesive
strips.
4. Press the assembled DHC Room Thermostat with
the back side to the wall .
5.2.2 Screw mounting
For mounting the DHC Room Thermostat with screws, pro-
ceed as follows:
1. Choose a site for installation.
Make sure that no electricity or similar lines run in
the wall at this location!
2. Position the mounting plate (F) on the desired site
on the wall. Make sure that the arrow on the mount-
ing plate is pointing upwards.
3. Use a pen to mark the positions of the screw holes
(J) (diagonally opposite) in the mounting plate on
the wall (see gure 4).
4. Drill the marked holes.

18
Start-up Start-up
If you are working with a stone wall, drill the marked
5 mm holes and insert the plugs supplied. If you are
working with a wooden wall, you can pre-drill
1.5 mm holes to easier insert the screws.
5. Use the supplied screws and plugs (K) to x the
mounting plate to the wall (see gure 5).
6. Attach the clip-on frame (A) to the mounting plate.
7. Place the electronic unit (B) back into the frame
(see gure 1). Make sure that “TOP” and the ar-
rows on the back side point upwards and that the
clips on the mounting plate latch into the openings
on the electronic unit.
5.2.3 Flush-mounted box mounting
You can mount the DHC Room Thermostat on a
ush-mountedboxusingthescrewholes(I) (see gure 4).
If the accessory is mounted to a ush-mounted
box, there may be no open conductor ends.
If changes or works have to be made on the house
installation (e.g. extension, bypass of switch or
socket inserts) or the low-voltage distribution for
mounting or installing the accessory, the following
safety instruction must be considered:
Only to be installed by persons with the
relevant electro-technical knowledge and
experience!*
Incorrect installation can put your own life at risk and the
lives of other users of the electrical system. Incorrect instal-
lation also means that you are running the risk of serious
damagetoproperty,e.g.becauseofare.Youmaybeper-
sonally liable in the event of injuries or damage to property.
Contact an electrical installer!
*Specialist knowledge required for installation:
The following specialist knowledge is particularly important
during installation:
• The “5 safety rules” to be used: Disconnect from
mains; Safeguard from switching on again; Check
that system is de-energised; Earth and short cir-
cuit;Coverorcordono󰀨neighbouringliveparts;
• Select suitable tools, measuring equipment and, if
necessary, personal safety equipment;
• Evaluation of measuring results;
• Selection of electrical installation material for safe-
guardingshut-o󰀨conditions;
• IP protection types;
• Installation of electrical installation material;
• Type of supply network (TN system, IT system, TT
system) and the resulting connecting conditions
(classical zero balancing, protective earthing, re-

19
Start-up Start-up
If you are working with a stone wall, drill the marked
5 mm holes and insert the plugs supplied. If you are
working with a wooden wall, you can pre-drill
1.5 mm holes to easier insert the screws.
5. Use the supplied screws and plugs (K) to x the
mounting plate to the wall (see gure 5).
6. Attach the clip-on frame (A) to the mounting plate.
7. Place the electronic unit (B) back into the frame
(see gure 1). Make sure that “TOP” and the ar-
rows on the back side point upwards and that the
clips on the mounting plate latch into the openings
on the electronic unit.
5.2.3 Flush-mounted box mounting
You can mount the DHC Room Thermostat on a
ush-mountedboxusingthescrewholes(I) (see gure 4).
If the accessory is mounted to a ush-mounted
box, there may be no open conductor ends.
If changes or works have to be made on the house
installation (e.g. extension, bypass of switch or
socket inserts) or the low-voltage distribution for
mounting or installing the accessory, the following
safety instruction must be considered:
Only to be installed by persons with the
relevant electro-technical knowledge and
experience!*
Incorrect installation can put your own life at risk and the
lives of other users of the electrical system. Incorrect instal-
lation also means that you are running the risk of serious
damagetoproperty,e.g.becauseofare.Youmaybeper-
sonally liable in the event of injuries or damage to property.
Contact an electrical installer!
*Specialist knowledge required for installation:
The following specialist knowledge is particularly important
during installation:
• The “5 safety rules” to be used: Disconnect from
mains; Safeguard from switching on again; Check
that system is de-energised; Earth and short cir-
cuit;Coverorcordono󰀨neighbouringliveparts;
• Select suitable tools, measuring equipment and, if
necessary, personal safety equipment;
• Evaluation of measuring results;
• Selection of electrical installation material for safe-
guardingshut-o󰀨conditions;
• IP protection types;
• Installation of electrical installation material;
• Type of supply network (TN system, IT system, TT
system) and the resulting connecting conditions
(classical zero balancing, protective earthing, re-

20
Conguration Conguration
quired additional measures etc.).
6 Conguration
Thecongurationoftheaccessorycanbesetupcomplete-
lyintheONECTAapp.Forfurtherinformationoncongura-
tion of the accessory without using the DHC Access Point,
see the DHC Application Guide.
The following modes and settings can be adjusted:
6.1 Automatic mode
6.2 Manual mode
6.3 Holiday mode
6.4 Operating lock (not yet available)
6.5 Programming a schedule
6.6 O󰀨settemperature(notyetavailable)
6.7 Selecting a temperature display (not yet
available)
6.1 Automatic mode
In automatic mode, the temperature is controlled in accor-
dance with the set week schedule (see „6.5.2 Week sched-
ule“ on page 22). Manual changes that are set via the
control wheel (E) are activated until the next point at which
the schedule changes. Afterwards, the dened schedule
will be activated again.
6.2 Manual mode
In manual mode, the temperature is controlled in accor-
dance with the current temperature set via the control
wheel (E). The temperature remains activated until the next
manual change.
6.3 Holiday mode
Holiday mode can be activated in the ONECTA app. It will
put your system into standby. The holiday mode is visual-
ized on your Daikin Altherma and on the Air Conditioning
units in the ONECTA App.
For further information, see the DHC Application Guide.
6.4 Operating lock (not yet available)
Operation of the accessory can be locked to avoid settings
being changed unintended (e.g. through involuntary touch-
ing).
This setting is not yet available in the ONECTA app
and cannot be changed for the moment.