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  1. J

    Pump runs when not calling for hot water - y plan open danfoss system

    As in title my pump runs when not calling for hot water when the programmer is in cycle. Photo attached inside my wiring centre. I need some help fault finding please
  2. J

    28mm y plan valve

    The bottom old one is a Sunvic 2706 which I think is obsolete. And I've got the new danfoss HSV3B28 one at the top but the bottom flange is longer so the copper pipe will need reducing. I think the side flanges are slightly wider too. I was hoping to find a direct replacement. Thanks for help
  3. J

    28mm y plan valve

    Hi, Is there a direct replacement for my old 28mm y plan valve, I bought a new one and it's slightly different. New one at top
  4. J

    Danfoss TP5001B

    Whats the blue for in the RMT230?
  5. J

    Danfoss TP5001B

    That's as was in the RMT230 and now in the TP5001B
  6. J

    Danfoss TP5001B

    Hi, Do you need 3 wires to operate the TP5001B, or does just a COM and ON work?
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