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Termet ECOCONDENS GOLD PLUS + ROUND with Wi-Fi - Open-Therm - connected incorrec

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  • #211 19681173
    Blyb
    Level 10  
    Maybe it will be better to write what it is trying to achieve, because I think I have misspelled the concept of modulation. I mean what you wrote at the end. I would like the boiler to run 24/7, just to change the temperature given as needed. For example, if I set the temperature in the room to 22 degrees, and then I change it to a lower one, e.g. 20 at night. It is the stove that is not supposed to shut down and wait for the temperature to drop from 22 to 20, but to give a lower temperature to the installation and thus cause a drop by these 2 degrees.

    I have a small house upstairs ground floor. Floor heating on the ground floor, heaters at the top. I wish I could set a different temperature in the bedroom upstairs than in the whole house. Hence my inquiry for a radiator thermostat. However, I would like remote control for such an example scenario. I am leaving for the weekend. I lower the temperature at home to 17 degrees. A few hours before my return I set to 22 and when I come back I enter the warmth.

    The expense will be one-off for several years, so I can spend about 1.5 thousand. I wanted to solve it all with an Evohome set with an OT gate. The problem is that it doesn't work with Ecodens Gold.

    If I buy Techa ST-2801 WIFI, I will get the furnace operation as described earlier (24/7 operation). But you will need a separate third-party kit to change the temperature in the bedroom. And such a solution seems not very elegant to me. You will need 2 applications that will not communicate with each other.

    As for Comfort with the LIN, it seems to me that when I switch from 22 to 20 degrees on the adjuster, the stove will stop and wait for the next excitation by the adjuster. Or is it not so?

    Maybe there are other solutions that will allow you to get what I described?
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  • #212 19681210
    bro2004
    Level 30  
    You come up with new rules for the operation of gas boilers :)
    If its minimum power is 3kW, how should the temperature drop from 22 at C to 20 degrees C as the temperature will be. Outside, outside 15 degrees C. The boiler would have to have a minimum power of 1kW or less.
    Buy an External temperature sensor and set the number of the heating curve by trial and error. Then the boiler will run non-stop. At least he was trying. If there is no heat reception, it will turn off until the temperature of the heating medium cools down.
    There is an option in the service settings - night temperature reduction, but then there can be no room controller. The temperature is set to 5 degrees lower than the daytime temperature. Ask your service technician or call Termet.
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  • #213 19681302
    Blyb
    Level 10  
    I know that when heat will be received, the stove must finally turn off. I mean minus temperatures in winter. If the furnace gives water, e.g. 55 degrees. That it would give 50 to lower the temperature in the room, and not turn off, for example, for an hour and then again 55.

    And night shifts on the stove are not the solution. I don't go to bed regularly, and I'm not going to the boiler room every now and then.
  • #214 19683998
    maliniak80
    Level 17  
    In the 2801, you can pull a few degrees from the power supply as it warms up in the room. I have it set so that I asked for, say, 24 degrees in the room and the water in that month I was 38 and it was rocking for a month without a break, this month I changed the water to 40 and that's how it goes 24 hours. The heat loss is such that it cannot reach these 24 degrees at home with water at a temperature of 40, but it fluctuates around 22. I have warm radiators all the time and I can dry my socks or pants whenever I want :)
  • #215 19684170
    Blyb
    Level 10  
    And you grow this water temperature from the st2801 level, is it on the stove?

    Do you have any zones in your home that you control remotely?
  • #216 19684283
    maliniak80
    Level 17  
    I have an old gravity system left after the coal stove, so the water load is large, and it is not profitable to control the stove so that it turns on, heats this mass of water and the room and turns off after some time. And this is still hot water, the stove has modulated to 2% and that's how it goes. I control with the ST-2801 because it is very convenient and I can see the status of the furnace on an ongoing basis.
    Termet ECOCONDENS GOLD PLUS + ROUND with Wi-Fi - Open-Therm - connected incorrec
    Radiators only, no floor heating or remote zones
  • #217 19687832
    burnmaster
    Level 12  
    @ maliniak80 the heating principle you described does not require any regulator, you might as well have a jumper on the boiler since the regulator tells you to heat 24 / h. The only benefit of this OpenTherm is that you don't have to go to the boiler room to change the water temperature.

    @Blyb I am also looking for some "intelligent" control for Gold that would be able to control the temperature of the heating water depending on the temperature in the building. I wrote to Termet about the Comfort module and from what I understand it does not have any algorithm for maintaining the temperature in the room and will not be able to "modulate" the temperature of the water. It turns out that it is only an advanced on / off regulator with the possibility of zone configuration, viewing boiler parameters and remote access.
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  • #218 19688412
    maliniak80
    Level 17  
    burnmaster wrote:
    @ maliniak80 the heating principle you described does not require any regulator, you might as well have a jumper on the boiler since the regulator tells you to heat 24 / h. The only benefit of this OpenTherm is that you don't have to go to the boiler room to change the water temperature.

    @Blyb I am also looking for some "intelligent" control for Gold that would be able to control the temperature of the heating water depending on the temperature in the building. I wrote to Termet about the Comfort module and from what I understand it does not have any algorithm for maintaining the temperature in the room and will not be able to "modulate" the temperature of the water. It turns out that it is only an advanced on / off regulator with the possibility of zone configuration, viewing boiler parameters and remote access.

    And here's what I wanted to be two-way communication. After all, I wrote that the 2801 can control the set temperature of the medium depending on the actual temperature of the room (influence of the temperature sensor) It is not a modulation but a change of the set temperature from the actual one. The furnace has modulation, if there is no reception from the radiators, it modulates with the range of its power (it reduces the power) and it does it even on a jumper instead of the regulator, of course within the rated limits. The fact that I set it up was due to the fact that I wanted to check how many meters he would use per month and it turned out that it would not be possible to set it more economically.
  • #219 20200030
    piobo2
    Level 1  
    Hello everyone. You write about the possibility of changing the software on the tiles, which involves their removal. I have one question - does the controller housing sometimes have a seal (sticker)? Won't opening it result in warranty issues?
  • #220 20223039
    cichy koksik
    Level 16  
    Wojtermet25 wrote:
    Now for additional drivers. They can be ON OFF and they only let the boiler know whether to heat or not

    And then the boiler does not reduce the set temperature on the boiler, but it does reduce the burner power?
    Wojtermet25 wrote:
    As for the OT drivers

    In this case, the boiler reduces the burner power and the set temperature?
    Let us assume that the boiler only has data from the controller / built-in room sensor, but without weather and outside sensor.
    I am talking about a dedicated tech sterwonik from this topic.
    Oh, how will the silver version behave in the above scenarios, will it be like in Gold Plus?
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  • #221 20227490
    BUCKS
    Level 39  
    cichy koksik wrote:
    Wojtermet25 wrote:
    Now for additional drivers. They can be ON OFF and they only let the boiler know whether to heat or not

    And then the boiler does not reduce the set temperature on the boiler, but it probably does reduce the burner power?

    remember that the burner power does not depend in any way on the ON / OFF regulator, because the railroad regulator gives only the HEAT START or HEAT STOP signal and it has no influence on the boiler operating parameters.
    The rest is done according to the program from the boiler's motherboard, i.e. according to the scheme programmed by the boiler manufacturer.

    cichy koksik wrote:
    Wojtermet25 wrote:
    As for the OT drivers

    In this case, the boiler reduces the burner power and the set temperature?

    Open Therm (OT) controllers connect to the boiler and can control it, so in theory they can change its operating parameters.
    What scope of changes will be possible depends on the given boiler and controller.
    In my opinion, the set temperature is best changed by the weather regulator, i.e. depending on the outside temperature, otherwise in my opinion it does not make much sense.
  • #222 20227520
    cichy koksik
    Level 16  
    BUCKS wrote:
    remember that the burner power does not depend in any way on the ON / OFF regulator, because the railroad regulator gives only the HEAT START or HEAT STOP signal and it has no influence on the boiler operating parameters.

    Yes, I know it, but I related my statement only to the termet gold plus.
    BUCKS wrote:
    In my opinion, the set temperature is best changed by the weather regulator, i.e. depending on the outside temperature, otherwise in my opinion it does not make much sense.

    I agree here too, while the room regulator, which can give a signal to reduce the power and temperature, in my opinion, is not worse than the weather.
    Currently, I have an atmosphere (vaillant) and I am researching the topic to change it to condensate, but I do not find anything sensible for reasonable money because either something is expensive or with a high minimum power or with no service in my area?
  • #223 20230059
    maliniak80
    Level 17  
    cichy koksik wrote:
    BUCKS wrote:
    remember that the burner power does not depend in any way on the ON / OFF regulator, because the railroad regulator gives only the HEAT START or HEAT STOP signal and it has no influence on the boiler operating parameters.

    Yes, I know it, but I related my statement only to the termet gold plus.
    BUCKS wrote:
    In my opinion, the set temperature is best changed by the weather regulator, i.e. depending on the outside temperature, otherwise in my opinion it does not make much sense.

    I agree here too, while the room regulator, which can give a signal to reduce the power and temperature, in my opinion, is not worse than the weather.
    Currently, I have an atmosphere (vaillant) and I am researching the topic to change it to condensate, but I do not find anything sensible for reasonable money because either something is expensive or with a high minimum power or with no service in my area?


    It doesn't work like that, you get it wrong. No regulator, contact or opentherm, can control the power. If the manufacturer left such options from the regulator level, he would shoot in the knee. The power is controlled by an internal regulator on the main plate of the boiler, and whether you start the boiler with a contact regulator or an opentherm, it always works the same, i.e. the controller (main board), based on the liquid temperature (supply, return), controls the burner power in relation to the preset liquid temperature (NOT ROOMS) and as you approach it, it gradually reduces the power but enough to maintain it. If, for example, you open the door and it is frost outside, you will start to cool the room and the radiators, thus the return temperature will drop and this will be information for the boiler controller board to control the burner more and to keep the LIQUID temperature at the set level. :)
  • #224 20230081
    cichy koksik
    Level 16  
    maliniak80 wrote:
    No regulator, contact or opentherm, can control the power

    Maybe, it is like that in junkers / bosch / viessmann according to the instructions.
    Often such a controller is called a modulating controller.
    The boiler selects parameters based on the room temperature from the regulator.
    The power certainly fluctuates, but I'm not sure about the temperature.
  • #225 20230097
    maliniak80
    Level 17  
    cichy koksik wrote:
    maliniak80 wrote:
    No regulator, contact or opentherm, can control the power

    Maybe, it is like that in junkers / bosch / viessmann according to the instructions.
    Often such a controller is called a modulating controller.
    The boiler selects parameters based on the room temperature from the regulator.
    Power certainly fluctuates, but I'm not sure about the temperature.

    This is just a simplification of how some Kowalski reads the instructions. The regulator can change at most the preset temperature of the liquid so that the room reaches the preset one faster.
  • #226 20230108
    cichy koksik
    Level 16  
    maliniak80 wrote:
    The regulator can change at most the preset temperature of the liquid so that the room reaches the preset one faster.

    Rather, it works the opposite in my opinion, i.e. the temperature of the liquid is lowered before it is reached.
    Nevertheless, I read that such a controller also affects the boiler power.
  • #227 20230219
    maliniak80
    Level 17  
    cichy koksik wrote:
    maliniak80 wrote:
    The regulator can change at most the preset temperature of the liquid so that the room reaches the preset one faster.

    Rather, it works the opposite in my opinion, i.e. the temperature of the liquid is lowered before it is reached.
    Nevertheless, I read that such a controller also affects the boiler power.

    The boiler is not only a controller and regulator, but also a hardware part. Since the manufacturer equips his boiler with a suitable gas path, i.e. one that can be controlled (modulated), he also equips with the appropriate electronics that will do it. Rather, it is not the case that he puts in a proportional gas unit and puts in electronics that will control it with zero by one, and whether it will be fully used, it will be decided at the end by the user if he buys a modulating controller for the boiler.
    Changing the value of the set temperature on the supply naturally affects the power of the boiler, if it is able to do so.
  • #228 20230236
    cichy koksik
    Level 16  
    maliniak80 wrote:
    Rather, it is not the case that he puts in a proportional gas unit and puts in electronics that will control it with zero by one, and whether it will be fully used, it will be decided at the end by the user if he buys a modulating controller for the boiler.

    Nobody wrote that :)
    The controller sends a signal to the boiler to lower the medium temperature or power.
    The boiler and the controller communicate on an ongoing basis and knows what to do, what is missing with the on / off controller.
  • #229 20230255
    maliniak80
    Level 17  
    cichy koksik wrote:
    maliniak80 wrote:
    Rather, it is not the case that he puts in a proportional gas unit and puts in electronics that will control it with zero by one, and whether it will be fully used, it will be decided at the end by the user if he buys a modulating controller for the boiler.

    Nobody wrote that :)
    The controller sends a signal to the boiler to lower the medium temperature or power.
    The boiler and the controller communicate on an ongoing basis and knows what to do, what is missing with the on / off controller.

    I wrote this to make you realize that the burner power control is not the domain of the room regulator and Kowalski what he bought such a controller. You can configure the temperature and dependencies in the room controller, but not control the power of the boiler.
  • #230 20230263
    cichy koksik
    Level 16  
    maliniak80 wrote:
    You can configure the temperature and dependencies in the room controller, but not control the power of the boiler.

    It's obvious, but the power is the resultant of the temperature of the medium or the air in the room, which you mentioned yourself :)
  • #231 20230325
    maliniak80
    Level 17  
    The power of the boiler (burner) and the temperature of the heating medium (medium) are quite two separate things, I thought you understand that much :) . I wrote that if the boiler can modulate, a change in the value of the set temperature on the supply will de facto result in the response of the local automation of the boiler and a different modulation of the burner. So it is a mistake to write that the room regulator controls the power (rather the supply temperature).
  • #232 20230340
    cichy koksik
    Level 16  
    maliniak80 wrote:
    The power of the boiler (burner) and the temperature of the heating medium (medium) are two separate things,

    It is obvious, this time you didn't understand me and I meant it
    maliniak80 wrote:
    Changing the value of the preset temperature on the supply will de facto result in the response of the local automatics of the boiler and a different modulation of the burner.

    That is why I wrote earlier that the controller "talking" to the boiler can give such effects, while the on / off boiler is not able to lower the temperature of the medium.
    maliniak80 wrote:
    So it is a mistake to write that the regulator controls the power,

    And this must be a grudge against the manufacturer :)
  • #233 20230424
    kmarkot
    Level 29  
    At one time, I was thinking about the modification of the Termet stove control with a temperature sensor inside the room that would turn on in parallel to the external resistance temperature sensor.
    https://www.elektroda.pl/rtvforum/topic3773185.html
    In this way, I would trick the stove control. The stove "think" that the temperature outside has risen and that it would reduce the CO temperature without turning it off.

    example
    Outdoor temperature sensor
    0 ° C - 32 kOhm
    10 ° C - 19 kOhm

    We have an outside temperature of 0 ° C, the temperature in the apartment has risen to 21 ° C, for example, the internal temperature sensor activates the NO contact and turns on the 47kOhm resistance to the external temperature sensor, which causes the resultant resistance to drop to 19kohm, the stove mixes the temperature with the heating curve.
  • #234 20279301
    krzysiekt28
    Level 8  
    In order not to have to "cheat" the stove, it is enough to get the Termet Comfort Module. With the help of which each user can adjust the operation of the boiler to his individual needs, it is enough to read the detailed manual, which allows, for example, by means of a weather regulator, to adjust the five-step heating curve to the individual needs of a given building. The system enables, among other things, the selection of the expected value of the heating water, which the user can also adjust to his own needs. By changing the value of iek (none, highest value, lowest value, average and middle value) everything is nicely described in the manual. The system has the option of temporarily reducing the value of the weather regulator, i.e. individual correction of the expected value of the heating water temperature. Of course, all settings need time and determination to adjust to your own needs, then all you have to do is enjoy the comfort and the ability to monitor the furnace using, for example, a smartphone. The system does not allow to interfere with changes in Pxx parameters. In order to be able to change these parameters as well, it would be necessary to obtain the MX01 expansion module for the COMFORT system - it will enable the control and diagnostics of the boiler operation via the Internet.
    Regards.
  • #235 20340955
    Adis71
    Level 2  
    Hello
    Can I connect the comfort module to the boiler myself without losing the warranty or does it have to be done by a service technician?
    Thank you for your response
  • #236 20341254
    Wojtermet25
    Level 30  
    You can, absolutely. Before that, I recommend reading and understanding the user manual, it may not be super simple, but it explains a lot at the very beginning.
  • #237 20341784
    Adis71
    Level 2  
    Thank you for the quick reply. The installation does not seem to be complicated, the problem is in the availability of this set
  • #238 20354076
    bigzbig1
    Level 12  
    Hello
    I have had the Termet Ecocondens Gold 25 boiler, the Termet Comfort Module, the external temperature sensor and the Termet System Comfort application for a year. It is indeed a set for integrated remote boiler management with heating curve adjustment, etc. In my opinion, the set meets almost all expectations of modern boiler management. I write almost all expectations because, according to my knowledge, it is a Termet proprietary system and allows the use of, for example, remotely controlled radiator thermostats only of the Termet system and not, for example, Zigbee, which significantly increases the cost of expanding the system with these heads. For now, I do not have remotely controlled radiator thermostats yet. Using the app, you can correct the heating curve from anywhere and experiment with many system settings at will. I am impressed with the capabilities of the Termet Comfort Module and I personally recommend this configuration for the Gold boiler and apparently others with a LIN interface
  • #239 20358729
    sajowka
    Level 2  
    Hello,
    I am writing because I was looking for the answer to the possibility of connecting Google Nest as a driver for Termet Gold 25k 2f.
    I've had it for a week...
    Everything works fine.
    Now I have to see what's cheaper Google or the curve will turn out in a few days.
    Oh, connected with opentherm ....
  • #240 20363261
    silnik777
    Level 11  
    sajowka wrote:
    Hello,
    I am writing because I was looking for the answer to the possibility of connecting google Nest as a driver for Termet gold 25k 2f.
    I've had it for a week...
    Everything works fine.
    Now I have to see what's cheaper google or the curve will turn out in a few days.
    Oh, connected with opentherm ....


    I'm asking because I don't quite understand. Google Nest works with Termet after OpentTherm?
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Topic summary

The discussion centers on integrating the Honeywell ROUND Wi-Fi OpenTherm controller with the Termet ECOCONDENS GOLD Plus boiler. Initial connection issues arise because the ROUND controller is primarily designed for ECOCONDENS CRYSTAL boilers and requires power from the boiler, whereas the GOLD Plus boiler supports OpenTherm only with controllers having independent power supplies (e.g., Auraton). The GOLD Plus boiler firmware versions impact OpenTherm functionality: versions prior to week 26 of 2018 lack full OpenTherm support, while versions b11, b12, and b14 progressively improve compatibility and fix bugs such as improper boiler shutdown and modulation display. Firmware updates can be performed by sending control boards to authorized service centers. The OpenTherm gateway in the ROUND Wi-Fi controller acts as a limited "prosthesis," not fully implementing the OpenTherm protocol, which affects features like weather curve control and remote modulation. Parameter P26 in the boiler software governs weather function modes, with values 1 and 3 determining whether heating curves are controlled by the room controller or the boiler. Users report that setting P26 to 3 enables the controller's curves to influence boiler operation, including proper heating shutdown after reaching set room temperatures. The ST-2801 Wi-Fi controller from Tech is noted for better OpenTherm integration and supports firmware updates via USB or network. Additional components discussed include Salus RT520 and ElektroBock PT52 thermostats, with mixed experiences regarding OpenTherm compatibility and features. The Sonoff Wi-Fi relay can be used as a simple on/off controller by bridging boiler contacts, enabling remote heating activation without full OpenTherm functionality. External wireless temperature sensors are not supported by Termet boilers; only wired sensors can be connected. Users emphasize the importance of authorized installation and exhaust gas analysis for warranty and safety. The discussion also touches on pump control behind heat exchangers and the limitations of current OpenTherm implementations in Termet GOLD Plus boilers, highlighting ongoing firmware development and the need for clearer documentation.
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