Where do I connect rc wire on the nest thermostat?

[Houptee]

Rc goes to Rc it is the + power for cooling ac system.

Rh is the + power for the heating system.

Do you have 2 red wires Rh and Rc on the old thermostat?

Do you have a C common wire? If not you need to see if the cable has a spare wire not being used and connect it to the C on Nest and then go the heating system and connect the same color wire to the C on heater.

[Jeff]

Hi everyone,

In an effort to keep content fresh on the forums here and prioritize current issues, I'm going to go ahead and close up this thread. If you have any outstanding issues from this post or any other problems, please feel free to open up a new discussion. Thanks for the detailed response, Houptee. For more information, go ahead and consult the install guide here: https://bit.ly/3msQ5RG.

Thanks,
Jeff