The Nest Community is now Google Home & Nest!
We have moved to a new home. Please visit the Google Home & Nest Community to connect with other users, ask questions, and explore the new space.
I have a Bryant Evolution Unit and Thermostat installed in 2012. Can I
replace it with any of the Nest thermostat. It has A-Green, B-Black,
C-White, D-Red wires only.