Wiring

Grampsbob

Diagram says to use NO terminal, my existing one uses NC terminal. Does anybody know which I should use
Thanks

hugbilly

NO is the contact which calls for heat (sends a voltage to the boiler when it's closed.)

https://www.tado.com/all-en/professional-manuals?utm_source=google&utm_medium=cpc&utm_campaign=uk_search_performance_max&utm_content=uk_search_performance_max_general&gad_source=1&gclid=Cj0KCQiAh8OtBhCQARIsAIkWb6-XAL3ene3iiaX2zmAmyYmsnl7XsCiaYOoal-DhDKhT-uUN70gSEfEaAmBEEALw_wcB

hugbilly

What's the system, Y plan, S plan, other ?

Grampsbob

Hi It’s a combi just heating to control !!!

Grampsbob

Fabulous thanks for that !!!