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Potterton boiler and Tado

scgf
scgf ✭✭
edited June 2022 in General Questions & Topics

I have established that my boiler, a Baxi Potterton Performa 30 HE will only work in relay (on/off) mode.

Looking at the wiring diagram below, which terminals would I connect to the new version of the extension box? Tado won't tell me. When I installed my first Tado system on an older Vaillant boiler I was sent step by step instructions. Now they say they won't give out any information only a professional installer would need.


Xnip2022-03-07_16-43-24.png

The instructions I was given for my Vaillant boiler (relay) were:

Xnip2022-03-07_16-55-46.png

In the case of the Potterton, my thinking is that live and neutral at the boiler would go to N and L in the extension box and terminal 2 at the boiler would go to terminal 4 on the extension box. I appreciate this is for the original extension kit but I could still buy one of these on Amazon.

If someone could corroborate that my thinking is correct it would put my mind at rest and avoid paying for installation.

Comments

  • scgf
    scgf ✭✭
    edited March 2022

    I am utterly shocked that nobody has a clue about this! I am asking about simple on/off control of a boiler. Nothing as esoteric as eBUS or OpenTherm.

    I have helped people on this forum and thought I might avail myself of the opportunity to ask for help myself. The response is zero.

    Shame on you Tado users! I certainly won't be offering any more help in the future.

  • andyblac
    andyblac ✭✭✭
    edited March 2022

    Hi @scgf

    Sorry for late reply, just seen this, basically yes,

    S-Plan Setup

    Boiler NEUTRAL (B) --> Tado N

    Boiler 1 --> Tado L

    Boiler 2 --> Tado 4

    you will also need to change the extension kit jumper to position 2.

    or

    Dry Contacts

    Boiler LIVE (BR) --> Tado L

    Boiler NEUTRAL (B) --> Tado N

    Boiler 1 --> Tado 1

    Boiler 2 --> Tado 4

    and leave the extension kit jumper to position 1.

    here is the full installers manual it explains it all, https://www.tado.com/start/manuals/st/Extension%20Kit%20Manual%20-%20230V%20Relay%20Installations.pdf


    Hope this helps.

  • scgf
    scgf ✭✭

    Thank you @andyblac. Your help is most appreciated and means I can confidently do the install myself. You have restored my faith in this community. Shame I can't delete my little hissy-fit post!

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