Tech Controllers EU-M-8N User manual

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EU-M-8N

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TABLE OF CONTENTS
I. Safety ...............................................................................................................................................................................4
II. Device description ...........................................................................................................................................................5
III. How to install the controller ...........................................................................................................................................6
IV. Main screen description..................................................................................................................................................8
V. Controller functions.........................................................................................................................................................9
1. Block diagram - controller menu....................................................................................................................................9
2. Zones ............................................................................................................................................................................10
3. External sensor.............................................................................................................................................................10
3.1. Calibration ...........................................................................................................................................................10
3.2. Information..........................................................................................................................................................10
4. Temperature sensor .....................................................................................................................................................10
5. Registration ..................................................................................................................................................................10
6. Time settings ................................................................................................................................................................10
7. Screen settings .............................................................................................................................................................10
7.1. Screensaver..........................................................................................................................................................10
7.2. Screen brightness ................................................................................................................................................11
7.3. Screen blanking....................................................................................................................................................11
7.4. Screen blanking time ...........................................................................................................................................11
8. Alarm clock settings......................................................................................................................................................11
9. Protections ...................................................................................................................................................................11
10. Language selection...................................................................................................................................................11
11. Software version ......................................................................................................................................................11
VI. Zones..............................................................................................................................................................................12
1. Block diagram - zones menu.........................................................................................................................................13
2. ON.................................................................................................................................................................................13
3. Schedule settings..........................................................................................................................................................13
3.1. Local schedule......................................................................................................................................................13
3.2. Global schedule 1-5 .............................................................................................................................................14
4. Actuators ......................................................................................................................................................................15
4.1. Information..........................................................................................................................................................15
4.2. Settings ................................................................................................................................................................15
5. Window sensors ...........................................................................................................................................................16
5.1. Delay time............................................................................................................................................................16
5.2. Information..........................................................................................................................................................16
6. Floor heating ................................................................................................................................................................16
6.1. Operation mode ..................................................................................................................................................16

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6.2. Minimum temperature........................................................................................................................................16
6.3. Maximum temperature .......................................................................................................................................16
7. Temperature settings ...................................................................................................................................................16
8. Hysteresis .....................................................................................................................................................................16
9. Calibration ....................................................................................................................................................................16
10. Zone name ...............................................................................................................................................................17
11. Zone icon..................................................................................................................................................................17
VII. Protections and alarms..................................................................................................................................................17
VIII. Software update............................................................................................................................................................17
IX. Technical data................................................................................................................................................................17
JG. 2021.02.22

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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 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
put in a different place, make sure that the user manual is stored 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.
Before starting the controller, the user should measure earthing resistance of the electric motors as well as the
insulation resistance of the cables.
The regulator 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 storm.
Any use other than specified by the manufacturer is forbidden.
Before and during the heating season, the controller should be checked for condition of its cables. The user should
also check if the controller is properly mounted and clean it if dusty or dirty.
Changes in the merchandise described in the manual may have been introduced subsequent to its completion on 22.02.2021.
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-M-8n room regulator is intended to be used with EU-L-8e external controller. It is designed to control subordinate
room regulators, sensors and thermostatic actuators. It sends current temperature readings from a given zone. Based on the
data, the external controller manages the thermostatic valves (opening them when the temperature is too low and closing
them when the pre-set temperature has been reached).
The EU-M-8n room regulator may be used to adjust the settings in other zones - pre-set temperature or floor heating.
NOTE
Only one EU-M-8n regulator may be installed in the heating system.
Functions offered by the controller:
Wireless communication with the EU-L-8e controller, sensors (EU-C-8r, EU-C-mini, EU-CL-mini, EU-C-8f, EU-C-8zr,
EU-C-2n), room regulators (EU-R-8b, EU-R-8bw, EU-R-8b Plus, EU-R-8z) and the STT-869 thermostatic actuators
Room temperature control
Displaying settings such as temperature, date and time
Parental lock
Alarm clock
Screensaver - possibility of uploading photos (slide show)
Software update via USB
Managing the settings of other zones - pre-set temperatures, schedules, names etc.
Possibility of introducing changes in global schedules
Controller equipment:
Glass-made panel
Wireless communication
Large colour touch screen
Built-in temperature sensor
Flush-mountable
NOTE
The regulator does not measure temperature. It forwards temperature readings from room regulators and sensors
to the external controllers in which they have been registered.
THERE ARE 2 COLOR VERSIONS: WHITE OR BLACK.

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III. HOW TO INSTALL THE CONTROLLER
The controller is flush-mountable in an electrical box.
WARNING
Risk of fatal electric shock from touching live connections. Before working on the controller switch off the
power supply and prevent it from being accidentally switched on.
NOTE
Incorrect connection of wires may damage the controller.

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The diagrams below illustrate correct connection:

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IV. MAIN SCREEN DESCRIPTION
The device is controlled using the buttons next to the display.
1. Enter the controller menu
2. Current operation mode (an armchair icon - comfort mode)
3. Cooling active
4. External temperature
5. Current time and date
6. Particular zone status:
7. Zone icon
8. Zone name
9. Current zone temperature
10. Pre-set zone temperature
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V. CONTROLLER FUNCTIONS
1. BLOCK DIAGRAM - CONTROLLER MENU
Menu
Zones
External sensor
ON
Calibration
Information
Temperature sensor
Registration
Type of sensor
Registration
Time settings
Clock settings
Date settings
Screen settings
Screensaver
Screensaver
selection
No screensaver
Slide show
Clock
Blank
Uploading photos
Idle time
Slide show
frequency
Screen brightness
Screen blanking
Screen blanking time
Alarm clock settings
OFF
Activated on selected
days
Activated once
Wake up time
Wake up day
Protections
Auto-lock ON
Auto-lock OFF
Auto-lock PIN codeLanguage
Software version

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2. ZONES
This menu is described in detail in section VI.
3. EXTERNAL SENSOR
3.1. CALIBRATION
Room sensor calibration should be performed while mounting or after the regulator has been used for a long time, if the
external temperature displayed differs from the actual temperature. Calibration setting range is from -10°C to +10°C with the
accuracy of 0,1°C.
3.2. INFORMATION
After selecting this function, the controller display will show signal strength and external sensor battery level.
4. TEMPERATURE SENSOR
This function is used to register the temperature sensor (C-8r, C-mini or CL-mini). Follow these steps in order to register the
sensor:
Select registration option in EU-M-8n (Menu > Temperature sensor > Registration)
Press the registration button on the sensor.
5. REGISTRATION
This function enables the user to register EU-M-8n room regulator in the EU-L-8e main controller. In order to register:
Select Registration in EU-M-8n (Menu > Registration)
Select Registration in EU-L-8e controller menu (Menu > Zones 1-8 > Registration)
6. TIME SETTINGS
This function enables the user to set current date and time which will be displayed in the main screen.
7. SCREEN SETTINGS
This function enables the user to adjust the screen parameters to individual needs.
7.1. SCREENSAVER
Screensaver selection - After tapping on this icon, the user may deactivate the screensaver (No screensaver) or set
the screensaver in the form of:
Slide show –the screen displays the photos at a user-defined frequency. This option may be activated if
the photos have been uploaded first.
Clock - the screen displays the clock
Blank –after a pre-defined time of inactivity the screen goes blank
Uploading photos –Before importing the photos to the controller memory they must be processed using ImageClip (the
software may be downloaded from http://tech-controllers.com/download/software). After the software has been
installed and launched, load the photos. Select the area of the photo which will be displayed on the screen. The photo
may be rotated. After one photo has been edited, load the next one. When all the photos are ready, save them in the
main folder of the flash drive. Next, insert the flash drive into the USB port and activate Picture import function in the

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controller menu. It is possible to upload up to 8 photos. When uploading new photos, the old ones are automatically
removed from the controller memory.
Idle time –this function is used to define the time after which the screensaver is activated.
Slide show frequency - this option is used to set the frequency at which the photos are displayed on the screen (if
the Slide show has been activated).
7.2. SCREEN BRIGHTNESS
This function enables the user to adjust the screen brightness to current conditions in order to improve its quality.
7.3. SCREEN BLANKING
The user may adjust the brightness of blank screen.
7.4. SCREEN BLANKING TIME
This function enables the user to define the time of inactivity after which the screen goes blank.
8. ALARM CLOCK SETTINGS
This submenu is used to activate and edit the alarm clock parameters . The alarm clock may be activated once or on selected
days of the week. It is also possible to disable this function.
9. PROTECTIONS
Tap on Protections in the main menu to open up a screen enabling the user to configure the parental lock function. When
this function is activated by selecting Auto-lock ON, the user may set the PIN code necessary to access the controller menu.
NOTE
0000 is the default PIN code.
10. LANGUAGE SELECTION
This function enables the user to select the language version of the controller menu.
11. SOFTWARE VERSION
When this option is selected, the screen displays the controller manufacturer’s logo and the software version.

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VI. ZONES
The EU-M-8n is a master room regulator – it enables the user to edit parameters of other zones regardless of the room
regulator or room sensor used there.
In order to edit a given zone parameters, tap on the area of the screen with the zone status information. The display shows a
basic zone editing screen:
1. Return to the main screen
2. Operation mode icon
3. Schedule icon
4. Heating active
5. External temperature
6. Current time and date
7. Enter Zones menu
8. Parameter icons
9. Pre-set zone temperature
10. Name of the current schedule
11. Current zone temperature
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* with a registered sensor offering humidity measurement function
Sensor, regulator
icon
Actuator icon
Window sensor
icon
Floor sensor icon
Level humidity*
Level of battery
WiFi signal
strenght
Level of actuator
opening

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1. BLOCK DIAGRAM - ZONES MENU
2. ON
After the room sensor has been activated and registered in a given zone, it is used by EU-L-8e controller. <OFF> is the default
setting for this option. It may be activated when the room sensor has been registered.
3. SCHEDULE SETTINGS
3.1. LOCAL SCHEDULE
This weekly schedule is assigned to a given zone only. After the room sensor has been detected by the main controller, the
schedule is activated automatically in this zone and may be adjusted by the user to individual needs. The changes introduced
apply only to the given zone.
Zones 1-8
ON
Schedule settings
Local schedule
Global schedule 1-5
Actuators
Information
Settings
Minimum opening
Maksimum opening
Sigma
Protection profile
Control rangeWindow sensor
ON
Delay time
Information
Floor heating
Operation mode
Minimum temperature
Maximum temperature
Temperature settings
Comfort temperature
Economical
HolidayHysteresis
Calibration
Zone name
Zone icon

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3.2. GLOBAL SCHEDULE 1-5
Global schedules are available in all zones –in each zone only one such schedule may be activated. The global schedule
settings apply automatically in all remaining zones where a given global schedule is active.
How to edit a schedule:
After entering the schedule editing screen, the schedule may be adjusted to the user’s needs. The settings may be configured
for two separate groups of days –the first group marked with orange colour, the other one with grey colour. It is possible to
assign up to 3 time periods with separate temperature values to each group. Outside these periods of time, a general pre-set
temperature will apply (its value may also be edited by the user).
1. General pre-set temperature for the first group of days (orange colour –in the example above the colour is used to
mark working days Monday-Friday). The temperature applies outside the time periods defined by the user.
2. Time periods for the first group of days –the pre-set temperature and the time limits. Tapping on a given period
opens up an editing screen.
3. General pre-set temperature for the second group of days (grey colour –in the example above the colour is used to
mark Saturday and Sunday).
4. In order to add new periods, tap on „+”.
5. Days of the week –orange days are assigned to the first group whereas grey days are assigned to the second one.
In order to change the group, tap on a selected day.
The time period editing screen enables the user to adjust the pre-set temperature and the time limits of the period with the
accuracy of 15 minutes. If the time periods overlap, they are marked with red colour. Such settings cannot be saved.
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4. ACTUATORS
4.1. INFORMATION
Select this option to view all actuators and their parameters: registered or not, battery level and signal strength.
4.2. SETTINGS
This submenu enables the user to configure the operation of the STT-869 thermoelectric actuators. The user may define the
maximum and minimum actuator opening –the level of valve opening and closing will never exceed these values.
SIGMA function enables smooth control of the thermostatic valve. After activating this function, the user may set the
minimum and the maximum level of valve closing.
Moreover, the user configures <Range> parameter, which defines the room temperature at which the valve starts closing
and opening.
Example:
Pre-set zone temperature: 23°C
Minimum opening: 30%
Maximum opening: 90%
Range: 5°C
Hysteresis: 2°C
With the above settings, the vale starts closing when the zone temperature reaches 18°C (pre-set temperature minus Range
value). The minimum opening is achieved when the pre-set zone temperature is reached. Afterwards, the temperature starts
falling. When it drops to 21°C (pre-set temperature minus hysteresis), the valve starts opening. It achieves the maximum
opening when the temperature reaches 18°C.
Protection profile –once this function has been activated, the external controller checks the temperature. If the
pre-set value is exceeded by the number of degrees defined in <Adjustment range> parameter, all the actuators in
the zone will be closed. This function works only when SIGMA function is active.

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5. WINDOW SENSORS
5.1. DELAY TIME
This function enables the user to set the delay time after which the main controller sends a signal to close the actuators.
Settings range :00:00 –00:30 minutes.
Example: Delay time is set at 10 minutes. When a window is opened, the C-2n sensor sends the information to the main
controller. If the sensor sends another information that the window is open after 10 minutes, the main controller will force
the actuators to close.
5.2. INFORMATION
Select this option to view all sensors and their parameters: registered or not, battery level and signal strength.
6. FLOOR HEATING
6.1. OPERATION MODE
Protection profile –this function is used to maintain the floor temperature below the maximum temperature value
in order to protect the heating system against overheating. When the temperature reaches the maximum value, the
zone heating is disabled.
Comfort profile –this function involves monitoring the floor temperature to maintain comfort temperature. When
the temperature reaches the maximum value, the zone heating will be disabled (in order to protect the system
against overheating). When the temperature drops below the minimum value, the zone heating will be enabled.
6.2. MINIMUM TEMPERATURE
This function is used to set the temperature below which floor heating in a given zone is enabled.
6.3. MAXIMUM TEMPERATURE
This function is used to set the temperature above which floor heating in a given zone is disabled.
7. TEMPERATURE SETTINGS
This function is used to define the pre-set temperature for particular operation modes. The user may configure comfort
temperature, economical temperature and holiday temperature.
8. HYSTERESIS
This function is used to define tolerance of the pre-set temperature in order to prevent undesired oscillation in case of small
temperature fluctuation. The setting range: 0,1°C - 10°C with the accuracy of 0,1°C.
Example: when the pre-set temperature is 23⁰C and the hysteresis is set at 0,5⁰C, the zone temperature is considered too
low when the room temperature drops to 22,5⁰C.
9. CALIBRATION
Room sensor calibration should be performed while mounting or after the regulator has been used for a long time, if the
external temperature displayed differs from the actual temperature. Calibration setting range is from -10°C to +10°C with the
accuracy of 0,1°C.

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10. ZONE NAME
This function enables the user to assign name to a given zone.
11. ZONE ICON
This function enables the user to select the icon which will be displayed next to the zone name.
VII. PROTECTIONS AND ALARMS
Protections and alarms are described in detail in the instruction manual of the EU-L-8e controller.
VIII. SOFTWARE UPDATE
WARNING
Software update shall be conducted only by a qualified fitter. After the software has been updated, it is not possible to restore
previous settings.
In order to install new software, the controller must be unplugged from the power supply. Next, insert the flash drive with
the new software into the USB port. Connect the controller to the power supply. A single sound signalizes that the software
update process has been initiated.
IX. TECHNICAL DATA
Power supply
230V ± 10% / 50Hz
Max. power consumption
1,5W
Operation temperature
5°C÷50°C
Acceptable ambient relative humidity
<80% REL.H
Operation frequency
868MHz

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EU Declaration of conformity
Hereby, we declare under our sole responsibility that the EU-M-8n regulator manufactured by TECH, head-quartered in Wieprz Biała
Droga 31, 34-122 Wieprz, is compliant with Directive 2014/53/EU of the European parliament and of the Council of 16 April 2014 on
the harmonisation of the laws of the Member States relating to the making available on the market of radio equipment, Directive
2009/125/EC establishing a framework for the setting of ecodesign requirements for energy-related products as well as the
regulation by the MINISTRY OF ENTREPRENEURSHIP AND TECHNOLOGY of 24 June 2019 amending the regulation concerning the
essential requirements as regards the restriction of the use of certain hazardous substances in electrical and electronic equipment,
implementing provisions of Directive (EU) 2017/2102 of the European Parliament and of the Council of 15 November 2017 amending
Directive 2011/65/EU on the restriction of the use of certain hazardous substances in electrical and electronic equipment (OJ L 305,
21.11.2017, p. 8).
For compliance assessment, harmonized standards were used:
PN-EN IEC 60730-2-9 :2019-06 par. 3.1a Safety of use
ETSI EN 301 489-1 V2.1.1 (2017-02) par.3.1b Electromagnetic compatibility
ETSI EN 301 489-3 V2.1.1 (2017-03) par.3.1 b Electromagnetic compatibility
ETSI EN 300 220-2 V3.1.1 (2017-02) par.3.2 Effective and coherent use of radio spectrum
ETSI EN 300 220-1 V3.1.1 (2017-02) par.3.2 Effective and coherent use of radio spectrum
Wieprz, 22.02.2021

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