Installing/Wiring

Hi,


I have brought a Tado smart thermostat and currently attempting to install it.


I currently have a Worcester Greenstar i boiler connected to a Honeywell BDR91 which wirelessly links to a Honeywell EHE0200361. (All images attached)


I have entered this information into the step by step guide on the tado website, however it is telling me that I need to purchase an extension kit from them. I would imagine this is because in most setups, the wireless receiver (BDR91) is hidden away. My receiver is conveniently placed where I would like to mount the tado smart thermostat. I was hoping the wiring would be a simple swap but I've now hit a curveball in that the installation instructions are not helping.


I am likely to be wrong but I was thinking that the wiring would be something like this because the tado is powered by batteries:


BDR91 (N) = TadoST Spare

BDR91 (L) = TadoST Spare

BDR91 (L) = TadoST Spare

BDR91 (A) = TadoST (COM)

BDR91 (B) = TadoST (NO)

BDR91 (C) = empty


I have attached images of my current wiring and also of the tado smart thermostat terminals. I would really appreciate any advice for wiring the smart thermostat to these cables or if it is true that I need an extension kit.


Thanks very much,


Will


Answers

  • JoeyJoey | Moderator

    Hi willocallaghan,

    You're findings are correct:

    BDR91 (N) = TadoST Spare

    BDR91 (L) = TadoST Spare

    BDR91 (L) = TadoST Spare

    BDR91 (A) = TadoST (COM)

    BDR91 (B) = TadoST (NO)

    BDR91 (C) = empty

    We have gone ahead and configured your tado° devices

    For future reference, please contact support for such issues:

    Or approach us on our [Live Chat]:


    Kind regards,

    Joey

Sign In or Register to comment.