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[Release] OpenTherm Max Flow Temperature setting

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Comments

  • Rob
    Rob Admin

    I believe the system looks atthe average outside temperature from 6 pm (yesterday) to 6 am (today) plus the selected max flow temperature to calculate the optimized temperature. So it's not the day temperature, but the night temperature.

    If I understand you correctly you'd like a slider (or similar) to adjust the agressiveness of the optimalization?

  • mojomoomoo
    mojomoomoo ✭✭
    @Rob that seems an odd way to do things. Recently we've had a frost over night but then 18°C during the day. The nights are often colder with warm days at the minute.
    Yes your suggestion is what would be great. Is there any reason it doesn't use the current outdoor temperature when adjusting the optimal flow.
  • JAlmstrom
    JAlmstrom ✭
    How do I acces this view?
    I have opentherm and installer app but cant find it anywhere…
  • mojomoomoo
    mojomoomoo ✭✭
    Are you trying to get the view in the image you've attached?
    Of so that's from the Pro App and then go to system check, this goes into the Model selector, you then run Run setup status.
  • JAlmstrom
    JAlmstrom ✭
    edited November 12
    My boiler is not supported (alfa laval).
    Can i choose any model that runs with opentherm to see this status?
    I want to check flow temperature.

    My system has distributed heating so I get really hot water and tado modulates insanely hot water to my radiators.
    I want to lower it and confirm it follows my new set value for max temp.

    Is there any difference in what model I choose if it has opentherm protocol? When I set the wired smart thermostat up i only chose opentherm on the thermostat itself. no supplier.
  • mojomoomoo
    mojomoomoo ✭✭
    edited November 12
    I'm just trying to understand what you've described. You live in a flat with a communal boiler? Alfa Laval make heat exchangers.
    If you want assistance we could do with model numbers, photos of what you currently have to control temperature etc.
  • JAlmstrom
    JAlmstrom ✭
    edited November 15

    I live in a house with my own central for heating and get hot water distributed to my house. The exact same method as you have for gas, but for hot water.

    The correct term looks to be "district heating".

    I chose any boiler with opentherm protocol and got i working so I can read the hot water temperature.

    I have had the system working for 2 years and I just wanted the temperature reading and control the max temp in the radiator pipes.

  • mojomoomoo
    mojomoomoo ✭✭
    What is your boiler? Some boilers will work with Opentherm but not have full control
  • JAlmstrom
    JAlmstrom ✭
    https://www.cetetherm.com/download/18.475ea8d017c330e850a5c4/1633614940770/Mini%20City%20Round%20&%20CM737%202021-09.pdf

    Its an alfa laval but rebranded.
    It comes with honeywrell cm 737 originally.

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