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Fitting wireless thermostat

Discussion in 'Plumbing and Central Heating' started by LordFrederickIII, 21 Sep 2021.

  1. LordFrederickIII

    LordFrederickIII

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  3. Pete W

    Pete W

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    Depends if you have a Neutral at the thermostat. If only 2 wires then not possible.
     
  4. LordFrederickIII

    LordFrederickIII

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    I'm pretty sure it does have neutral. I'll double check
     
  5. CBW

    CBW

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    What existing thermostat do you have? What setup is it, eg Combi boiler, s-plan or y plan etc?
     
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  7. LordFrederickIII

    LordFrederickIII

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    I currently have a Salus ST620
    I think it's a S-plan. System boiler and unvented cylinder

    I've checked the wires at the existing thermostat and i have live, switched live and neutral.
     
  8. CBW

    CBW

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    Providing the live and neutral are permanent, then it should work by putting the receiver there. Salus do have a mixed view reputation though.
     
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  9. LordFrederickIII

    LordFrederickIII

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    I've had a look at the wiring for the new thermostat.

    Currently my wiring is:

    Red - live
    Blue - neutral
    Yellow - switched

    On the attached wiring diagram, does this translate to

    L - red
    N - blue
    COM - yellow

    Is that right?
     

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  10. Johnmdc

    Johnmdc

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    Red and blue are right but yellow goes to NO and you need to put a link between L and C.
     
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