The UT15 room thermostat is designed to control MINIB convectors in all operating modes (heating, cooling, heating/cooling).
USER COMFORT
The UT15 modern design emphasis on high user comfort. From the robust design of the display with a precise response to a light touch, through the optimal distribution of information and controls, to the automatic modes, everything helps user to quickly and easily set the desired behavior of the thermostat. The very intuitive backlit liquid crystal display is easy to read in all lighting conditions.
EASY INSTALLATION
The thermostat is designed for mounting into a standard junction box. Installing a thermostat does not require any special tools or skills and is as easy as installing a standard switch or socket. The thermostat is powered directly from the 230 VAC mains voltage and thus does not require an additional power supply or the supply of special power cables.
WIDE SETTING OPTIONS
In addition to the standard time program settings, the UT15 also allows you to set speed levels, convector heat exchanger type, temperature sensor calibration and other parameters for use in various conditions.
DISPLAY AND CONTROLS
PROGRAMMING
To activate the programming mode, hold down the setting button (for about 3 seconds) while the thermostat is on. The set parameter flashes. To change the parameter value, press‘<’ and ‘>’ keys. You move to the next parameter with the settings button.
The first three set parameters are the current time and day of the week. Other parameters set the desired temperature for the day of the week and time period. The day of the week is indicated by a number in the calendar next to the time, the time period is indicated by a number at the top of the display.
PARAMETERS SETTINGS
To access parameter settings switch the thermostat off and hold the settings button (for 5 seconds). Press “M” button to go to the next parameter.
| CODE | PARAMETER | SETTINGS RANGE | DEFAULT VALUE |
|---|---|---|---|
| 01 | Temperature calibration | -8 °C – +8 °C | 0 °C |
| 03 | Function mode | Heat: heating, Cool: cooling, Fan: ventilation, Auto: automatic |
- |
| 04 | Set point high limit | +5 °C – +35 °C | +35 °C |
| 05 | Set point low limit | +5 °C – +35 °C | +5 °C |
| 11 | Hysteresis | 0.5 °C – 3 °C | 1 °C |
| 15 | Fan behaviour after reaching required temperature | ||
| NS: running, S: stopped | S | ||
| 16 | Child lock | 0: neaktivní, 1: aktivní | 0 |
| 17 | Heat exchanger selection | 2 pipes: 1-circuit 4 pipes: 2-circuits |
4 pipes |
| 18 | Factory reset | 1: reset (hold power button) | 0 |
| 19 | Firmware version | ||
| 50 | Low speed control voltage (about 15 % for free convection) | 0 % – 100 % | 35 % |
| 51 | Mid speed control voltage | 0 % – 100 % | 75 % |
| 52 | High speed control voltage | 0 % – 100 % | 100 % |
CHILD LOCK
Press + and - to temporarily unlock the thermostat if the child lock is activated in the settings.
TECHNICAL DATA
| Power supply | 230 VAC, 50/60 Hz | Backlight | bílé |
|---|---|---|---|
| Maximum switch current | 3 A | Temperature sensor | NTC |
| Set point range | 5 -- 35 °C | Accuracy | ±1 °C |
| Ambient temperature | 0 -- 50 °C | Protection class | IP30 |
| Relative humidity | 85 % | Housing | ABS / UL94-5 plastic |
INSTALLATION
WIRING DIAGRAM

