I have now 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. This is the relevant page in the installation manual. I am assuming a connection between Live or terminal 1 and terminal 2 would fire the boiler?
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. This is the relevant page in the installation manual. I am assuming a connection between Live or terminal 1 and terminal 2 would fire the boiler?