The Efficient Home Forum

Thanks for the update and the details! There was no reason it shouldn't have worked but I'm super glad it did!

Great stuff, good to hear!

What model evohome Controller do you have (look under the evotouch fascia)? If it is an ATC928G3000 is it on the latest 2024 firmware?

Hi Zak,

As you have tagged both my videos in your post, it probably figures I have all the answers. Unfortunately when it comes to the CDi using an OpenTherm adaptor, sadly I don't.

As you can see in the latest CDi video I did ( https://www.youtube.com/watch?v=ubT-I7zE3k4&list ...

No unfortunately not possible, you'll need to swap it out with a BDR91.

https://thesmartthermostatshop.co.uk/?p ... pe=product

Having used Home Assistant for many years, the system is always evolving and a level of experience is still required if you want to do something useful with all the integrations.

For sure, green and yellow will certainly get around the initial setup from scratch issues, but to advance the system ...

What boiler is it? How long has the thermostat been fitted?

You need the Mixergy cylinder to give a 'satisfied' and 'not satisfied' demand to the CS92A. This can be done with a resistor box with a couple of resistors and a relay attached the Mixergy cylinder.

I'm assuming this is what the Mixergy MK2 Heat Pump Interface will give you? Any reason why the ...

If you have HR92's on all radiators then you setup the system like the schematic on page 46 of the evohome installation guide with no heating zone valve - its just not required.

You bind it into the zone on the evohome Controller - contact tech support for assistance on 0300 130 1299.