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  1. M

    hive and boilermate, wiring diagram, wheres NO and NC?

    Hi all, I've bought a hive c1 system and I'm trying to wire it into my boilermate to control the heating. I've included the wiring diagram.. So I can ser how to remove the exisiting thermostat by reconnecting L2, I can see where the heating clock is and that I want to swap it out for the hive...
  2. M

    Diagnosing possible overrun issue? Potterton suprima and boilermate 2

    Hi all, the facts so far... I have a potterton suprima in the kitchen cupboard paired with a boilermate 2 upstairs in the airing cupboard. The boiler mate has two pumps, one connected to "heating flow" and the other to "primary return heat generator" A month ago we were woken to a loud buzzing...
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