Here are the most important technical data for MIRECO 3 regulator (you may get more information by downloading the complete instruction that is here – click the right mouse button, the size about 1,4 Megabyte, but today only in Polish) :

Heater circuits : - Normal heater circuits max. 17, - Hot water circuits max 16, - Boiler protection max. 8, - Altogether max. 17 circuits (first circuit control by Mireco, next 16 by enhancement modules). - Heat temperature calculation – weather regulation or regulation of the indoor temperature. - Practical fuel saving 15 to 25 %, sometimes to 35%. Practical installation lifetime extending 30 do 100 % (experiences from the last 12 years), especially for cast iron boilers. - Programmable reduction of the hour fuel consumption, if necessary (for example in Poland). - Data recording, all 5 minutes, all circuits, all temperatures (about 2 MB) - Automatic circuit shut off depending of the average day temperature (programmable temperature and length of the averaging) - Anti block function for all pumps in circuits there are shut off. - Anti freeze function on all circuits switched off. - Anti breaking function for cast iron, also with rotary valves at the boilers. - Full central heating installation control – supervising all important temperatures, comparing real values with expectation. - Overheating protection for coal boilers. If the boiler temperature is too high the regulator will open the heater circuit beginning from hot water. - Automatic recognition of all holidays, inclusive Easter and Corpus Christi. - Automatic change of the summer/winter time. - Serial interface for external modem or internal telephone modem or GSM modem. - System monitoring and programming over SMS service with malfunction reporting. - Limitation of the heating after defined time (blocking function) for not 100% credible customers (duration 1-63 days, to set or reset via SMS). Customer reset with one-time code. - Temperature sensors - resistive type (KTY81-210), all sensors in the entire of the regulator set. - Wall mounting case.

And here is some additional information:

- Main supply 230VAC+5-10%, power consumption max 12 VA, insulation class II.
- Ambient temperature under bias +5 to +40°C,
- Humidity 10% to 90 %.
- Case - IP42, with cover IP54.



    Shortened working principle .
    MIRECO regulator’s construction is based on  a modern 16-bit microcontroller Mitsubishi M16. It’s used for temperature measure, reading the data saved in heating programs’ memory, proper steering of boilers, as well as information display and setting the data. Whereas,  time measure is conducted by a clock with calendar which is able to work on batteries (batteries lifetime is typically 3 years)

    Heating steering uses so called heating programs which define the required room temperature. There are 30 programs and each of them may be prepared for different circumstances. Detailed description of the programs’ work may be found in the instruction.

    The regulator is produced in one version and the installation type is set in the configuration menu. While dealing with more complex installations, you need to add expanding modules (up to 16 items) and, possibly, inside temperature sensors with correctors.

    For all the versions it’s possible to steer boilers equipped with two-stage burners, while having half the amount of boilers, as well as to join the boilers with one-stage or two-stage burners.

    Developing the regulator with additional expanding modules enables connection of next circuits. Each circuit has the possibility of full steering of weather regulation as well as indoor temperature regulation. The modules may also steer boilers’ rotary valves, the blower and hot water preparation.

There is a certain modification of MIRECO 3 regulator – a system of heating steering with the usage of gas radiators MIRECO 3 PG. It’s the optimal option for heating large-cubature structures. One network with MIRECO 3 PG regulator may operate up to 192 radiators with individual steering in 32 groups. Such solutions are used in industrial halls and help save energy. The system may control air temperature of heated objects by pyrometric (non-touchable) method.    The system may also register data and has the possibility of remote control.    The instruction for MIRECO 3 PG regulator is available here  (only in Polish).