TECH CONTROLLERS EU-M-12t User Manual

I. Safety

Before using the device, read the following regulations carefully. Failure to comply may lead to personal injury or controller damage. Store the manual in a safe place for future reference. Ensure all users are familiar with the operation and security functions. The manufacturer is not responsible for injuries or damage resulting from negligence. Users must take necessary safety measures to protect their lives and property.

WARNING:

• High voltage! Ensure the regulator is disconnected from the mains before any power supply activities (plugging cables, installation).
• The device should be installed by a qualified electrician.
• Before starting the controller, measure the earthing resistance of electric motors and the insulation resistance of cables.
• The regulator should not be operated by children.

WARNING:

• The device may be damaged by lightning. Disconnect the power supply during storms.
• Any use other than specified by the manufacturer is forbidden.
• Check cable condition before and during the heating season. Ensure the controller is properly mounted and clean it if dusty or dirty.

Changes in products described in this manual may occur. The manufacturer reserves the right to introduce changes to structure or colors. Illustrations may include additional equipment. Print technology may result in color differences.

TECH CONTROLLERS prioritizes environmental care. Electronic devices must be disposed of safely. The symbol of a crossed-out rubbish bin indicates that the product must not be thrown into ordinary waste bins. Segregating waste for recycling helps protect the environment. Users are responsible for transferring waste electrical and electronic equipment to designated collection points.

II. Description of the Device

The EU-M-12t control panel operates with the EU-L-12 controller and manages subordinate room controllers, sensors, and thermostatic actuators. It supports wired RS 485 and wireless communication. The panel allows system management by controlling and editing settings for heating devices in individual zones, including pre-set temperature, floor heating, and schedules.

CAUTION: Only one panel can be installed in the system, supporting up to 40 heating zones.

Functions and equipment of the controller:

• Controls EU-L-12 and EU-ML-12 controllers, thermostatic actuators, room controllers, and wired/wireless temperature sensors (e.g., EU-R-8b Plus, EU-C-8r). Displays information in full color on a large glass screen.
• Allows online control of the heating system via https://emodul.eu.
• Includes the EU-MZ-RS power supply.
• Features a large, color glass display.

The control panel itself does not measure temperature; it relies on registered controllers and sensors.

III. Installing the Controller

The EU-M-12t panel is designed for mounting in an electrical box and requires installation by a qualified person. To mount the panel, screw the rear housing part onto the wall (1) and slide the device into it (2). The EU-M-12t panel works with the EU-MZ-RS power supply (3), which is included in the set and mounted near the heating device.

Diagram Description (Page 5): Shows the EU-M-12t panel (2) being mounted onto a wall bracket (1), with the EU-MZ-RS power supply (3) nearby.

Diagram Description (Page 6): Illustrates wiring connections. Shows a power supply unit, a controller unit (EU-L-12), and the EU-M-12t panel. It details the connection of power and communication cables (GND, VCC, A/YELLOW, B/GREEN) between these units.

Diagram Description (Page 7): Provides a detailed wiring diagram showing connections between the EU-L-12 controller, the EU-M-12t panel, and a 230V power source. It specifies wire colors (YELLOW, GREEN, BROWN, GND/WHITE) for different terminals like RS VALVE, RS INTERNET, SENSOR, OPENTHERM, etc.

WARNING: Danger of injury or death due to electric shock on live connections. Disconnect power supply before working on the device and secure it against accidental switching on.

CAUTION: Incorrect wiring may damage the controller.

The panel should be connected to the first or last controller as it cannot be equipped with a terminating resistor. Refer to the EU-L-12 manual for termination connection details.

IV. First Startup

Registration the Panel in the Controller

For correct operation, the panel must be connected to the EU-L-12 controller and registered. Follow these steps:

1. Connect the panel to the controller and both devices to the power supply.
2. In the EU-L-12 controller, navigate to: Menu → Fitter's menu → Control Panel → Device Type. Select wired or wireless registration based on assembly type.
3. On the EU-M-12t panel screen, click the Register option.

After successful registration, data synchronizes, and the panel is ready.

CAUTION: Registration is successful only if the system versions of the registered devices are compatible.

CAUTION: If factory settings are restored or the panel is unregistered, the registration process must be repeated.

V. Main Screen Description

1. Main Screen

The main screen displays key information about the heating system zones.

Diagram Description (Page 9): Illustrates the main screen layout with numbered elements:

• 1: Controller Menu access.
• 2: Panel information (modules, modes, sensors).
• 3: OpenTherm status indicator.
• 4: Heating stopping function indicator.
• 5: Outdoor temperature or current date/time.
• 6: Zone name (e.g., Kitchen, Living room).
• 7: Current temperature in the zone.
• 8: Pre-set temperature for the zone.
• 9: Additional information tile.

The screen shows current temperatures and target temperatures for various zones (e.g., Kitchen, Living room, Bedroom, Kids, Bathroom, Hall, Wardrobe, Garage), along with the date and time.

2. Zone Screen

The Zone Screen provides detailed information and control for a specific zone.

Diagram Description (Page 10): Shows the zone screen interface:

• 1: Back button to return to the main screen.
• 2: Zone name (e.g., ZONE 1).
• 3: Zone status indicators.
• 4: Current time.
• 5: Active operation mode (e.g., CONSTANT MODE).
• 6: Current zone temperature.
• 7: Access to zone parameters menu.
• 8: Zone pre-set temperature.
• 9-13: Information about registered sensors (humidity, floor, room, window) and actuators.

Zone Status Icon Table:

• Zone alarm: ?
• Zone currently heated: ?
• Zone currently cooled: ❄️
• Open windows in the zone (no heating/cooling): ?
• Heating disabled in options: ??
• Cooling off in options: ?❄️
• Pump is switched off: ?
• No cooling due to humidity: ??
• Floor overheated: ?️⬆️
• Floor underheated: ?️⬇️
• Floor sensor active: ?
• No heating due to weather control: ☁️??
• Optimum Start Enabled: ✅⬆️
• Voltage-free contact off: ?❌

VI. Controller Functions

3. Operation Mode

Allows activation of selected operation modes (Normal, Holiday, Economy, Comfort) for all zones. Mode values can be edited via the EU-M-12t panel or EU-L-12/EU-ML-12 controllers.

• 3.1. Normal Mode: Pre-set temperature depends on the set schedule.
• 3.2. Holiday Mode: Pre-set temperature depends on holiday mode settings.
• 3.3. Economy Mode: Pre-set temperature depends on economy mode settings.
• 3.4. Comfort Mode: Pre-set temperature depends on comfort mode settings.

CAUTION: Changing to Holiday, Economy, or Comfort modes applies to all zones. Setpoint temperature editing is zone-specific. In modes other than Normal, pre-set temperature cannot be changed from the room controller level.

4. Zones

Used to enable/disable individual zones. If a zone is blank, no sensor or room controller is registered. Zones 1-8 are assigned to the main controller (EU-L-12), and zones 9-40 to EU-ML-12.

5. Controller Settings

• 5.1. Time Settings: Set current date and time for the main screen display.
• 5.2. Screen Settings: Configure screen saver (clock, fading), screen brightness, and dimming time.
• 5.3. Protections: Enable/disable parental lock (Autoblock) and set a PIN code.
• 5.4. Sound the Buttons: Enable/disable key tones.
• 5.5. Alarm Sound: Enable/disable alarm sound. An audible signal accompanies on-screen alarm messages when enabled.
• 6. Software Version: Displays the manufacturer's logo and controller software version.

7. Fitter's Menu

This menu provides access to advanced settings for installers.

• 7.1. Master Module:
  • REGISTER: Registers the panel in the main EU-L-12 controller (see Chapter IV).
  • INFO: Preview registered module and enabled devices/functions.
  • NAME: Change the name of the registered module.
  • ZONES: Configure room sensors, outputs, settings, actuators, window sensors, floor heating, zone name, and zone icon.
• Room Sensor Configuration:
  • Sensor selection: Register NTC wired, RS wired, or wireless sensors; allows deletion.
  • Calibration: Adjust sensor readings if they deviate from actual values.
  • Hysteresis: Adds tolerance (0.1-5°C) for room temperature, enabling additional heating/cooling.
• Outputs Configuration: Controls outputs for floor pump, no-voltage contact, and sensors 1-8. Allows switching off the pump and contact in a zone.
• Settings:
  • Weather control: Enable/disable weather-dependent control (works in heating mode).
  • Heating: Enable/disable heating function, set schedules, or constant temperature.
  • Cooling: Enable/disable cooling function, set schedules, or constant temperature.
  • Temperature settings: Set temperatures for Holiday, Economy, and Comfort modes.
  • Optimum start: Intelligent system for advance heating activation based on continuous monitoring. (Detailed in L-12 manual).
• Actuators:
  • Information: Displays valve head data (battery level, range).
  • Settings: Configure SIGMA function for seamless actuator control, setting minimum/maximum valve openings and range.

  CAUTION: Sigma function is for radiator valve actuator heads only.

• Window Sensors:
  • Settings: Enable window sensor activation (registration required).
  • Delay Time: Set a delay before the controller responds to window opening and blocks heating/cooling.

  CAUTION: If delay time is 0, actuators close immediately.

  • Wireless: Displays sensor data (battery level, range). Registered sensors can be deleted.
• Floor Heating:
  • Register and switch on wired or wireless floor sensors.
  • Hysteresis: Tolerance for floor temperature (0.1-5°C).
  • Calibration: For floor sensor accuracy.
  • Operation modes:
  • Floor Protection: Keeps floor temperature below a set maximum to prevent overheating.
  • Comfort profile: Maintains comfortable floor temperature, switching off heating if it exceeds the maximum, and resuming if it drops below the minimum.
• Maximum temperature: Floor temperature threshold to open contact (switch off device).
• Minimum temperature: Floor temperature threshold to short contact (switch on device).
• Zone Name: Assign individual names to zones (e.g., 'kitchen').
• Zone Icon: Assign icons to symbolize zone usage.
• 7.1.5. Additional Contacts: Register additional contacts (max. 6) and view their information.
• 7.1.6. Voltage-Free Contact: Enable remote operation of voltage-free contact from EU-ML-12 slave controller.
• 7.1.7. Pump: Switch on remote pump operation and set delay time.
• 7.1.8. Heating-Cooling: Enable remote heating/cooling mode operation (heating, cooling, or automatic).
• 7.1.9. Heat Pump: Dedicated mode for heat pump installations. Includes Energy saving mode, Minimum break time (compressor protection), and Bypass options.
• 7.1.10. Mixing Valve: View mixing valve parameters (refer to L-12 manual for details).
• 7.1.11. Version: Displays software version number.

7.6. Anti-Stop Settings

Activates the pump to prevent scale buildup from prolonged inactivity. Allows setting pump operating time and intervals.

7.7. Maximum Humidity

If humidity exceeds the set maximum, cooling for the zone is disconnected. Active only in Cooling mode with a humidity sensor.

7.8. DHW Settings

Set DHW operation mode: time, constant, or schedule. DHW hysteresis defines the temperature difference for pump operation.

7.9. OpenTherm

Enable/disable OpenTherm communication with gas boilers. Includes Weather control settings (enable, averaging time, temperature threshold) and Heating curve configuration.

7.10. Language

Change the controller language version.

7.11. Repeater Function

Use the repeater function by selecting registration in the menu. Follow on-screen prompts for transmitting and target devices. Registration must be successful on both devices.

CAUTION: Registration must always be successful on both registered devices.

7.12. Factory Settings

Return to manufacturer-saved Fitter's menu settings.

8. Service Menu

Accessible only to authorized persons with a proprietary code held by Tech Sterowniki.

9. Factory Settings

Return to manufacturer-saved menu settings.

VII. Software Update

To update software, disconnect the controller, insert a USB flash drive with the new software, and reconnect. This process should only be performed by a qualified installer. Previous settings cannot be restored after a software change.

CAUTION: Do not turn off the controller during software updates.

VIII. Alarms

Alarms are displayed on the panel screen and described in the EU-L-12 manual. An additional alarm indicates lack of communication with the master module (EU-L-12 controller).

IX. Technical Specifications

EU-M-12t

EU-MZ-RS Power Supply

EU Declaration of Conformity

TECH STEROWNIKI II Sp. z o.o. declares that the EU-M-12t is compliant with relevant EU directives and harmonized standards concerning radio equipment, ecodesign, and restriction of hazardous substances.

Harmonized standards used for compliance assessment include:

• PN-EN IEC 60730-2-9 :2019-06
• PN-EN IEC 62368-1:2020-11
• PN-EN 62479:2011
• ETSI EN 301 489-1 V2.2.3 (2019-11)
• ETSI EN 301 489-3 V2.1.1 (2019-03)
• ETSI EN 301 489-17 V3.2.4 (2020-09)
• ETSI EN 300 328 V2.2.2 (2019-07)
• ETSI EN 300 220-2 V3.2.1 (2018-06)
• ETSI EN 300 220-1 V3.1.1 (2017-02)
• EN IEC 63000:2018 RoHS

Date: Wieprz, 07.09.2023

Signatories: Paweł Jura (CEO), Janusz Master (CEO)