Replacing honeywell cm907 by nest

Discussion in 'Plumbers' Talk' started by Mehmet, Nov 11, 2019.

  1. Mehmet

    Mehmet New Member

    Hi,

    I would like to replace my old honeywell thermostat by a nest gen 3.
    There is only 2 wires.
    1) is it possible to replace ?
    2) how to wire the 2 actual wires
     

    Attached Files:

  2. kiaora

    kiaora Guest

    Hi
    My understanding of the new type of heating controls is that a base station / receiver / programmer is wired in the system wiring Center.
    The wall thermostat can be battery powered, and rf connected to the base station, so the two wires you have aren’t needed, and you can fit room stat, anywhere ?

    Good luck

    Peter
     
  3. Mehmet

    Mehmet New Member

    Hi Peter,

    My question is how to wire the heatlink with this 2 wires coming from the boiler.
     

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