Room sensor

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Viewing 13 posts - 1 through 13 (of 13 total)
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  • #7647
    ekonttan
    Participant

    As one can write directly #50 room temp, what additional benefit does the room sensor give?

    When I first installed my ThermIQ-room and still wasn’t sure (and still have some doubts, but that is thing for another topic) to what terminals to connect room sensor I noticed that I could send mqtt topic to change room temp. That made me wonder what additional benefit having room sensor cables connected could give to me?

    #7650
    Anders a
    Keymaster

    That is two different things:

    Register d50 (r32) is wanted temperature
    ThermIQ-room is able to give the HP an “actual room-temperature” thus giving the control-loop direct feedback.
    Without room the “actual room temperature” is not used but instead the return water temperature is used.

    #7651
    ekonttan
    Participant

    Ok, thanks! How to check that room sensor is connected correctly? How to test it ie. how to set indoor temp, not just indoor target temp?

    • This reply was modified 5 months, 3 weeks ago by ekonttan.
    #7653
    Anders a
    Keymaster

    The HP will, by default, report “Indoor temp 20.5” when correctly connected.

    You will find how to send an MQTT message changing the “indoor temp” in the manual on the homepage.

    #7654
    ekonttan
    Participant

    Ok, thanks. I also now get the benefit of the room sensor with you explanation as I noticed it simply changed the target, the same value that I was able to change directly from my Thermia Diplomat Duo Optimum.

    I have to check why I don’t get this 20.5. It might be wrong connection as I simply used terminal 303/304 since I couldn’t find any details for my Thermia model (Thermia Diplomat Duo Optimum 8).

    #7655
    Anders a
    Keymaster

    Please note that the indoor module is not a simple PT100 (thermistor) interface but a 2-way protocol. It usally takes about 30 sec to set the indoor temp.

    You might want to try to swap 303/304. It shouldn’t make a difference but ….

    #7656
    ekonttan
    Participant

    Ok, I’ll try to that.

    What I already noticed, is that for example

    set {“INDR_T”:21}

    changes the value on ThermIQ-room’s own small display to that value, but that is not visible on Thermia itself or on ThermIQ2 webserver.

    #7657
    Anders a
    Keymaster

    It should be the same when correctly installed

    #7658
    ekonttan
    Participant

    Need to fiddle a bit more.

    I tried to swap 303/304 but no avail.

    So I still can’t get the room sensor to work, maybe is is some other terminals? Any suggestions for finding diagram or confirmation them to be 303/304 for “Diplomat Duo Optimum 8” I would be very grateful!

    I only found obscure mention about the possibility to add room temperature sensor to this model in the manual, but no diagrams.

    Only one diagram/picture behind the cover of the machine itself:

    SELV 5V
    406: 303, 304
    50: 305, 306
    408: 307, 308

    54: 311, 312
    55: 325, 326

    Physically 307/308 are the only other free slots in the same block.

    #7659
    ekonttan
    Participant

    It would seem that 307/308 is for totally different purpose, EVT Timer, so there is something else wrong with my installation.

    Any other suggestion or setting that I should enable on the Thermia itself? Should I order replacement temp-cable?

    #7683
    jonni
    Participant

    What kind of 2-way protocol is it? is it documented anywhere. Just interested for my DIY project…

    #7684
    Anders a
    Keymaster

    As with everything from Thermia it’s an undocumented proprietary protocol

    #7685
    jonni
    Participant

    OK, so logic analyzer needed for debugging 🙂

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