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  1. J

    Replacing Centaurplus C27 with Nest Gen 3

    I thought so but needed the confirmation... Thanks so much!
  2. J

    Replacing Centaurplus C27 with Nest Gen 3

    Ok so I've been reading everything I can and think it goes as follows.... N -> Nest N L -> Nest L 1 -> Nest 4 (hot water satisfied) 2 3 -> Nest 6 (call for heat HW) 4 -> Nest 3 (call for heat CH) If that's all correct then what do I need to connect the hot water and central heating commons on...
  3. J

    Replacing Centaurplus C27 with Nest Gen 3

    Hi I've purchased a 3rd gen nest to completely replace a horstmann centaur plusc27 programmer. It's controlling a mistral boiler and we currently do not have a thermostat. The wiring is just to complicated for me to work out. Could anyone help with what wires go where on the heat link...
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