Tech Controllers EU-293v3 User manual

EU-293 User manual
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EU-293v3

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TABLE OF CONTENTS
I. Safety ............................................................................................................................................................................3
II. Device description ........................................................................................................................................................4
III. How to install the controller.........................................................................................................................................5
1. How to install battery-powered regulator ............................................................................................................... 5
2. How to install 230V-powered regulator................................................................................................................... 7
IV. First start-up ................................................................................................................................................................. 9
V. How to use the controller............................................................................................................................................. 9
1. Principle of operation...............................................................................................................................................9
2. Operation modes....................................................................................................................................................10
3. Main screen view and description..........................................................................................................................12
4. Controller functions................................................................................................................................................14
4.1. Block diagram - main menu ........................................................................................................................... 15
4.2. Day of the week............................................................................................................................................. 15
4.3. Clock settings................................................................................................................................................. 16
4.4. Day from... ..................................................................................................................................................... 16
4.5. Night from... .................................................................................................................................................. 16
4.6. Button lock.....................................................................................................................................................16
4.7. Optimum start ............................................................................................................................................... 16
4.8. Automatic manual mode ...............................................................................................................................17
4.9. Weekly control...............................................................................................................................................17
4.10. Pre-set comfort temperature ........................................................................................................................19
4.11. Pre-set economical temperature...................................................................................................................19
4.12. Pre-ser temperature hysteresis..................................................................................................................... 20
4.13. Temperature sensor calibration ....................................................................................................................20
4.14. Floor sensor ................................................................................................................................................... 20
4.15. Maximum floor temperature......................................................................................................................... 21
4.16. Minimum floor temperature .........................................................................................................................21
4.17. Floor temperature hysteresis ........................................................................................................................ 21
4.18. Service menu ................................................................................................................................................. 21
VI. Technical data.............................................................................................................................................................22
JG, 2021.05.21

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I. SAFETY
Before using the device for the first time the user should read the following regulations carefully. Not obeying the rules
included in this manual may lead to personal injuries or controller damage. The user’s manual should be stored in a safe
place for further reference.
In order to avoid accidents and errors it should be ensured that every person using the device has familiarized themselves
with the principle of operation as well as security functions of the controller. If the device is to be sold or put in a different
place, make sure that the user’s manual is there with the device so that any potential user has access to essential
information about the device.
The manufacturer does not accept responsibility for any injuries or damage resulting from negligence; therefore, users
are obliged to take the necessary safety measures listed in this manual to protect their lives and property.
WARNING
A live electrical device! Make sure the regulator is disconnected from the mains before performing any
activities involving the power supply (plugging cables, installing the device etc.)
The device should be installed by a qualified electrician.
The device should not be operated by children.
WARNING
The device may be damaged if struck by a lightning. Make sure the plug is disconnected from the power
supply during a thunderstorm.
Any use other than specified by the manufacturer is forbidden.
The device should be periodically checked.
Changes in the merchandise described in the manual may have been introduced subsequent to its completion on
21.05.2021. The manufacturer retains the right to introduce changes to the structure or colours. The illustrations may
include additional equipment. Print technology may result in differences in the colours shown.
We are committed to protecting the environment. Manufacturing electronic devices imposes an
obligation of providing for environmentally safe disposal of used electronic components and
devices. Hence, we have been entered into a register kept by the Inspection for Environmental
Protection. The crossed-out bin symbol on a product means that the product may not be
disposed of to household waste containers. Recycling of waste helps to protect the environment.
The user is obliged to transfer their used equipment to a collection point where all electric and
electronic components will be recycled.

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II. DEVICE DESCRIPTION
The EU-293v3 room regulator is intended for controlling the heating or cooling device (e.g. gas, oil or electric boiler or the
boiler controller).
Its main task is to maintain the pre-set temperature in the flat by sending a signal to the heating/cooling device (contact
opening) when the desired temperature is reached.
Advanced software enables the regulator to fulfil a wide range of functions:
maintaining the pre-set room temperature
manual mode
day/night program
weekly control
underfloor heating system control (optional; an additional temperature sensor is necessary)
Controller equipment:
touch buttons
front panel made of 1mm glass
built-in temperature sensor
batteries (battery-powered version)
The EU-293v3 room regulator offers two display versions:
standard (the data is displayed in black against white background)
negative (the data is displayed in white against black background)
Two colour versions available
WHITE
BLACK
Hardware versions:
1. EU-293 B v3 –wired version, powered with two AAA 1,5V batteries, with a temporary backlight. Colour
versions: black or white.
2. EU-293 Z v3 –wired version, powered with 230V, with a temporary backlight. Colour versions: black or
white.

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III. HOW TO INSTALL THE CONTROLLER
NOTE
The device should be installed by a qualified electrician.
1. HOW TO INSTALL BATTERY-POWERED REGULATOR

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The EU-293v3 room regulator - connection diagram
The room regulator should be connected with the heating device with the use of a two-core cable. When connecting
devices with a power greater than 1A, it is necessary to use a contactor. Optionally, it is possible to connect an additional
sensor to the floor sensor contact contact - additional functions will appear in the controller menu.
heating
device

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The EU-293v3 room regulator may be used as a wall-mountable panel. In order to mount it, place the rear part of the
controller in the mounting box on the wall, insert the regulator and turn it slightly.
2. HOW TO INSTALL 230V-POWERED REGULATOR

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The EU-293v3 room regulator - connection diagram
The room regulator should be connected with the heating device with the use of a two-core cable. When connecting
devices with a power greater than 1A, it is necessary to use a contactor. Optionally, it is possible to connect an additional
sensor to the floor sensor contact contact - additional functions will appear in the controller menu.
heating
device

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IV. FIRST START-UP
In order for the EU-293v3 controller to operate correctly, follow these steps when starting the device for the first time:
1. Insert the batteries - in order to do it, remove the front cover (battery-powered version).
2. If the room regulator is to control the floor heating system, connect an additional sensor to the floor sensor
connector.
3. Connect the regulator with the heating device using a two-core cable.
NOTE
Only one room regulator may be assigned to each zone. Assigning more than one room regulator will
make it impossible for the external controller to work properly.
V. HOW TO USE THE CONTROLLER
1. PRINCIPLE OF OPERATION
The EU-293v3 room regulator is designed to maintain the pre-set room temperature by sending a signal to the
heating/cooling device (contact opening) when the pre- set room temperature has been reached. After receiving such a
signal, the heating/cooling device is disabled (if it is connected to a CH boiler controller, the CH boiler switches to sustain
mode after receiving the signal).
If the regulator is used in heating mode, it may also cooperate with a floor sensor. In such a situation, the contact remains
closed when the floor temperature is below the minimum threshold. After the threshold temperature has been exceeded,
the contact remains closed until the pre-set room temperature is reached. If the floor sensor temperature exceeds the
maximum value, the controller will open the contact regardless of the current room temperature.

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NOTE
In order for the floor heating functions to be available in the controller menu, an additional sensor must be
connected to the floor sensor contact.
2. OPERATION MODES
The room regulator may operate in one of the following operation modes:
Day/night mode
In this mode the pre-set temperature value depends on the current time of the day. The user may set different
temperature values for the daytime and nighttime (comfort temperature and economical temperature) as well as define
the exact time of entering day mode and night mode.
In order to activate this mode, press EXIT button until day/night mode icon appears on the main screen.
Weekly control
This mode enables the user to define the time when the pre-set comfort temperature and the pre-set economical
temperature will apply. The user may set 9 different programs divided into three groups:
- PROGRAMS 1÷3 –daily temperature values are set for all days of the week;
- PROGRAMS 4÷6 –daily temperature values are set separately for the weekdays (Monday-Friday) and for the
weekend (Saturday-Sunday);
- PROGRAMS 7÷9 –daily temperature values are set for each day of the week separately.
* The display shows the hours when the comfort temperature applies. In the remaining time period economical
temperature applies.
day/night mode icon
Weekly control icon
Number of the current
weekly control program
Parameters of the
current weekly control
program*

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In order to activate this mode, press EXIT until a weekly control icon appears on the main screen.
Manual mode
In this mode the pre-set temperature is adjusted manually from the main screen view with the use of these buttons:
.Manual mode is activated automatically when one of these buttons is pressed. Once the manual mode is
activated, the previous operation mode enters sleep mode until the next pre-programmed temperature change. Manual
mode may be deactivated by pressing EXIT button.
Example 1 –manual mode activation in Day/night mode
When Day/night mode is active, the user changes the pre-set temperature by pressing one of the buttons
which automatically activates manual mode. The controller returns to Day/night mode when daytime changes into
nighttime (or the other way round) or when the user presses EXIT.
Example 2 –manual mode activation in weekly control mode
When Weekly control is active, the user changes the pre-set temperature by pressing one of the buttons
which automatically activates manual mode. The controller returns to weekly control mode when, according to the weekly
schedule, economical temperature changes into comfort temperature (or the other way round) or when the user presses
EXIT.
Manual mode icon
Day/night mode icon
Manual mode icon
Weekly control icon

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3. MAIN SCREEN VIEW AND DESCRIPTION
The user operates the device using touch buttons. While one parameter is being edited, the remaining icons are not
displayed.
1. Display
2. EXIT in the main screen view - press this button to activate the weekly control or day/night mode. In the
controller menu, use this button to confirm the settings and return to the main screen view.
3. in the main screen view - press this button to switch to manual mode and decrease the pre-set temperature
value. In the controller menu, use this button to change parameter settings , enter the service code etc.
4. in the main screen view - press this button to switch to manual mode and increase the pre-set temperature
value. In the controller menu, use this button to change parameter settings , enter the service code etc.
5. MENU –hold this button to enter the controller menu. While editing parameters, press this button to confirm
the changes and move on to edit the next parameter.
1
2 3 4 5

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1. Day of the week
2. An icon informing about current economical temperature (resulting from weekly control or day/night mode
settings).
3. An icon informing about current comfort temperature (resulting from weekly control or day/night mode
settings).
4. An icon informing about displaying current floor temperature (point 6 on the display) - a floor sensor must be
and registered in the controller menu.
5. Floor temperature
6. Pre-set room temperature
7. Time
8. Buttery level (this icon is displayed only in the battery-powered version).
9. An icon informing about room cooling/heating. The animation differs depending on the selected operation
mode:
Heating mode –the icon flashes when the pre-set temperature has not been reached; it is steady when the
pre-set temperature has been reached.
Cooling mode –the icon rotates when the temperature is above the pre-set value; it is steady when the pre-
set temperature has been reached.
10. Current operation mode:
a. Weekly
b. Manual
c. Day/night
11. Current room temperature
12. Parameter icons (see: a table below)
1
2
3
4
5
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6
7
8
9
10
11
12

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Parameter icons:
Clock settings
Floor sensor
Day from...
Comfort temperature
Night from...
Economical temperature
Optimum start / heating/cooling mode
selection (in service menu)
Hysteresis
Button lock
Temperature sensor calibration
Weekly control settings
4. CONTROLLER FUNCTIONS
The user navigates the menu structure using , EXIT and MENU. In order to edit particular parameters, press
MENU. Next, press MENU to view the controller functions –the edited parameter is flashing whereas the remaining
parameters are not displayed. Use to change the parameter settings. Press MENU to confirm the changes and
move on to edit the next parameter or press and EXIT to confirm the changes and return to the main screen view.

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4.1. BLOCK DIAGRAM - MAIN MENU
*These functions are displayed only after the additional sensor has been connected to the floor sensor contact and
activated in the controller menu by selecting ON in the Floor sensor submenu.
4.2. DAY OF THE WEEK
After entering the main menu, all icons which are not connected with the
parameter which is being edited are not displayed. The first parameter is
day of the week. Press or until the current day of the week is
displayed.
Press MENU to confirm and move on to the next parameter or press EXIT
to confirm and return to the main screen view.
Menu
Day of the week
Clock settings
Day from...
Night from...
Button lock
Optimum start
Automatic manual mode
Weekly program
Pre-set comfort temperature
Pre-set economical temperature
Pre-set temperature hysteresis
Temperature sensor calibration
Floor sensor
Maximum floor temperature*
Minimum floor temperature*
Floor temperature hysteresis
Service menu
Heat/Cool
Edition min. pre-set temperature
Edition max. pre-set temperature
Factory settings

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4.3. CLOCK SETTINGS
In order to set current time, press MENU until time setting panel is
displayed on the screen. By pressing or set the hour and minutes.
Press MENU to confirm and move on to the next parameter or press EXIT
to confirm and return to the main screen view.
4.4. DAY FROM...
This function enables the user to define the exact time of entering the day mode. When Day/night mode is active, comfort
temperature applies at daytime. To configure this parameter press MENU
until Day from… setting appears on the screen. By pressing or set
the hour and minute of day mode activation.
Press MENU to confirm and move on to the next parameter or EXIT to
confirm and return to the main screen view.
4.5. NIGHT FROM...
This function enables the user to define the exact time of entering the
night mode. When Day/night mode is active, economical temperature
applies at nighttime.To configure this parameter press MENU until Night
from… setting appears on the screen. By pressing or set the hour
and minute of night mode activation.
Press MENU to confirm and move on to the next parameter or press EXIT
to confirm and return to the main screen view.
4.6. BUTTON LOCK
In order to activate the button lock, press MENU until a padlock icon
appears. Use one of the buttons or to select ON. In order to unlock
the buttons, press and hold the buttons at the same time, select the
button lock function and select OFF.
4.7. OPTIMUM START
Optimum start is an intelligent system controlling the heating/cooling process. It involves constant monitoring of the
heating/cooling system efficiency and using the information to activate the heating/cooling in advance in order to reach
the pre-set temperatures.

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A–pre-programmed change from economical temperature to comfort temperature
Activating this function means that at the time of pre-programmed change of the pre-set temperature determined by the
schedule, the current room temperature will be close to the desired value.
In order to activate this function, press MENU until Optimum start settings
appear. Use the buttons to activate/deactivate the function.
Press MENU to confirm and move on to the next parameter or press EXIT
to confirm and return to the main screen view.
4.8. AUTOMATIC MANUAL MODE
This function enables manual mode control. If this function is active (ON),
the manual mode is disabled automatically when a pre-programmed
change resulting from the previous operation mode is introduced. If the
function is disabled (OFF), the manual mode remains active regardless of
the pre-programmed changes.
4.9. WEEKLY CONTROL
This function is used to change the current weekly control program and edit the weekly programs.
HOW TO CHANGE WEEKLY PROGRAM NUMBER
When weekly control is enabled (see: VII.2. Operation modes) the current
program is activated. In order to choose the program number, press
MENU until weekly program settings appear on the screen.
By pressing and holding MENU button the user opens up the program
selection screen. Each time the user holds the MENU button, the program
number changes. When the desired number appears on the screen, press
MENU –the controller returns to the main screen view and the selected
program number is set.
Room temperature -
OPTIMUM START ON
Room temperature -
OPTIMUM START OFF
weekly program number

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HOW TO CONFIGURE PARTICULAR WEEKLY PROGRAMS
Weekly program allows the user to define the time when comfort
temperature and economical temperature will apply. Depending on the
program number, the user may set daily temperature values for all days of
the week (programs 1÷3), for weekdays and the weekend separately
(programs 4÷6) and for each day of the week separately (programs 7÷9).
In order to edit weekly program, press MENU until weekly program setting
screen opens up.
STEP 1 –CHOOSE THE PROGRAM TO BE EDITED
By pressing and holding MENU button the user opens up the program editing screen. Each time the user holds the MENU
button, the program number changes. When the desired number appears on the screen, the user may start editing its
parameters.
STEP 2 –SELECT DAYS OF THE WEEK
If the user wants to edit programs 1÷3, there is no possibility of selecting particular days of the week as the setting applies
to each day.
If the user wants to edit programs 4÷6 , it is possible to edit the settings for weekdays and the weekend separately. Press
MENU briefly in order to select.
If the user wants to edit programs 7÷9, it is possible to edit the settings for each day separately. Press MENU briefly in
order to select a day.
weekly program number
Editing weekdays
parameters
Editing parameters for
Monday

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STEP 3 –ASSIGN COMFORT TEMPERATURE OR ECONOMICAL TEMPERATURE TO PARTICULAR HOURS
An hour which is being edited is displayed on the controller screen. In
order to assign comfort temperature, press . In order to select
economical temperature, press . The controller automatically moves
on to editing the next hour.
The parameters of the weekly program are displayed at the bottom of the screen: hours to which comfort temperature
has been assigned are displayed whereas hours to which economical temperature has been assigned are not displayed.
Example:
The following screenshot presents daily settings of program no. 7 for Monday
24⁰⁰-01⁵⁹- economical temperature
02⁰⁰-06⁵⁹- comfort temperature
07⁰⁰-14⁵⁹- economical temperature
15⁰⁰-21⁵⁹- comfort temperature
22⁰⁰-00⁵⁹- economical temperature
NOTE
When the user finishes the editing process by pressing EXIT button, the controller returns to the main
screen view and this program is selected as the current program.
4.10. PRE-SET COMFORT TEMPERATURE
Pre-set comfort temperature is used in weekly control mode and
day/night mode. Press MENU button until the comfort temperature
change screen opens up. Press or to set the desired
temperature.
Press MENU to confirm and move on to the next parameter or press EXIT
to confirm and return to the main screen view.
4.11. PRE-SET ECONOMICAL TEMPERATURE
Pre-set economical temperature is used in weekly control mode and
day/night mode. Press MENU button until the economical temperature
change screen opens up. Press or to set the desired
temperature.
Press MENU to confirm and move on to the next parameter or press EXIT
to confirm and return to the main screen view.
Edited hour

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4.12. PRE-SER TEMPERATURE HYSTERESIS
Room temperature hysteresis defines the pre-set temperature tolerance
in order to prevent undesired oscillation in case of small temperature
fluctuation (within the range of 0,2 ÷ 4°C).
In order to set the hysteresis, press MENU until the hysteresis setting
screen opens up. Use or to set the desired hysteresis value.
Press MENU to confirm and move on to the next parameter or press EXIT
to confirm and return to the main screen view.
Example:
Pre-set temperature : 23°C
Hysteresis : 1°C
The room regulator reports that the temperature is too low only when the room temperature drops to 22 °C.
4.13. TEMPERATURE SENSOR CALIBRATION
Calibration should be performed while mounting or after the regulator
has been used for a long time, if the room temperature measured by the
internal sensor differs from the actual temperature. Calibration setting
range is from -10 to +10 ⁰C with the accuracy of 0,1⁰C. To calibrate the
built-in sensor, press the MENU button until the temperature sensor
calibration screen appears. Use the buttons to set the desired
correction.
To confirm, press the MENU button (confirm and go on to edit the next parameter) or press EXIT to confirm and return
to the main screen view.
4.14. FLOOR SENSOR
NOTE
This parameter is not available in the menu when the
additional sensor has not been connected to the floor sensor
contact or when the cooling mode is active.
Use one of the buttons to enable the floor sensor (ON) or
disable it (OFF). To confirm, press the MENU button (confirm and go on
to edit the next parameter) or press EXIT to confirm and return to the
main screen view.
NOTE
It is necessary to set this function to ON in order for the following parameters to be available in the controller
menu: maximum floor temperature, floor sensor hysteresis, minimum floor temperature.