Replacing honwell thermostat with hive

Discussion in 'Screwfix Live' started by Yash.K, Oct 12, 2020.

  1. Yash.K

    Yash.K New Member

    I have just bought hive thermostat single receiver for combi boiler when I took the old one off there is only 3 wires brown black and grey(which is not connected to anything ) how can I wire the new thermostat any advices please
     
  2. Mike83

    Mike83 Screwfix Select

    In your situation the receiver is usually fitted at the other end of the stats cable.
    More or likely this will be at the boiler.
     
  3. Mike83

    Mike83 Screwfix Select

    It can be done at the stat though but need to know how it’s connected at the boiler
     
  4. Yash.K

    Yash.K New Member

    image.jpg image.jpg image.jpg This is the back of the thermostat
     
  5. Yash.K

    Yash.K New Member

    image.jpg That’s inside the boiler switch
     
  6. Mike83

    Mike83 Screwfix Select

    0E5D388F-32E5-4535-9438-940BFC7EA942.jpeg This looks like your stat connections.
    What make and model boiler do you have?
     
  7. Yash.K

    Yash.K New Member

    Ideal logic 35
     
  8. Mike83

    Mike83 Screwfix Select

    You will need to know how it’s wired at the boiler.
    It’s probably from the 240v side.
     
  9. Yash.K

    Yash.K New Member

    How can I check it mike by opening the boiler or something
     
  10. Mike83

    Mike83 Screwfix Select

    Visually checked at the boiler or the wires tested with a multi meter
     
  11. Yash.K

    Yash.K New Member

    Thanks Mike will find something but thanks for your help
     
  12. Mike83

    Mike83 Screwfix Select

    It will be quite easy.
    If you fit the receiver at the boiler then the hive will need a LNE supply.
    Then you just need to use the other 2 wires that will be 1 and 3.
    Those 2 wires will be the ones that come from the stat and join to the terminal strips and lead to the boiler.
     
  13. Yash.K

    Yash.K New Member

    But my hive is wireless with the batteries in it
     
  14. Mike83

    Mike83 Screwfix Select

    The hive stat is wireless.
    But the receiver needs wired.
    It’s fairly simple to fit next to the boiler and will also be possible to fit the receiver at the old stats location with wiring modifications.
     
  15. Yash.K

    Yash.K New Member

    Need two receivers then that’s what you mean
     
  16. Mike83

    Mike83 Screwfix Select

    No. Your battery powered hive stat communicates to the wired receiver.
    The receiver is then connected to the boiler.
     
  17. Yash.K

    Yash.K New Member

    So replace the boiler switch with the wired receiver and leave the old stat as it is and my wired receiver will work with the wireless stat
     
  18. Mike83

    Mike83 Screwfix Select

    The boiler switch needs to stay in place.
    What I would do is fit the receiver next to the boiler and run a bit 5 core between the boiler and receiver.
    I would then remove the existing black and grey wires on the current 5 core from behind the switch and inside the boiler.
    There’s other ways to do this though.
    You should maybe get someone in to do the job. Whilst it’s simple I suppose things could go wrong.
     
  19. Yash.K

    Yash.K New Member

    I think you are right will call someone to install don’t wanna ruin things but I really appreciate your help thanks anyway Mike stay safe
     

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