Tado Extension unit on Potterton Promax HE Plus wiring

Sidster79 · Oct 26, 2017

Hi, after some help wiring up the Tado Extension unit to my boiler. I have attached some photos of the existing wiring, the wire supplied form Tado and instructions from Tado and those on my boiler. I'm assuming from this I need to remove the existing bridge from terminal 1 and 2 and attach the grey switch wire to Terminal 1 and the live brown wire to Terminal 2? Then what about the blue Neutral?

https://Upload the image directly to the thread.com/a/V4n0d

Any help appreciated.

Squid · Oct 26, 2017

Help in uploading photos?

Sidster79 · Oct 26, 2017

Photos:

[ElectriciansForums.net] Tado Extension unit on Potterton Promax HE Plus wiring

brains-lans · Oct 26, 2017

Ive not got the Extension kit, but do have the Bridge & two stats.

Not sure if you are trying to wire it up before setting it up with Tado, but from memory when you go to add the device to your account online it asks you what boiler you have and provides a full guide on how to connect it with pictures.

If you haven't already looked at this, hope this helps.

Sidster79 · Oct 26, 2017

Yeah, it replaced an existing wireless receiver originally and I used the instructions to follow. I've recently had the boiler moved as part of renovation work and need to install the receiver like new but the instructions they have sent are basically just like the picture attached

brains-lans · Oct 26, 2017

Im a DIY'er so might want to wait for someone qualified to confirm but it looks to me:

* Remove the light blue loop between 1 and 2
* Grey to 1 (S/L)
* Brown to Brown (L)
* Blue to Blue (N)

Sidster79 · Oct 26, 2017

brains-lans said:
Im a DIY'er so might want to wait for someone qualified to confirm but it looks to me:

* Remove the light blue loop between 1 and 2
* Grey to 1 (S/L)
* Brown to Brown (L)
* Blue to Blue (N)