Evohome and intergas - opentherm

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  • Mid112
    Automated Home Jr Member
    • May 2019
    • 37

    Evohome and intergas - opentherm

    Hello

    Im still trying to get the best setting for intergas xclusive 30 which was installed couple of months ago.

    We have evohome with 4 hr92s and opentherm

    The problem is mainly with one room which is alwyas cooler then other. During nights hr92 is requesting heat at very low rate.lnin this room. I checked evohome and usually its 4-11%. When there is a demand, hr92 opens valve to 32. The boiler fires up for 10sec the pump circulate the water but the heat never reaches the rad - its completely cold.
    This keeps happening every 10min or so, and i suspect it keeps repating as heat never reaches the rad.
    I increased the overrun to 5min but this hasnt made any difference.
    I suspect that that hr92 has to open much wider then 32 in order to get the heat.

    Is ther any solution. I looked even into min ch pump flow but its not clear from intergas how to set it.

    Any advise much appreciated
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