which Nest Model will work

[erikking18]

 I have modelg4cvz

below is what have

[Stuff]

Tape off the brown E/W1 wire and any will work.  If you want separate emergency heat control then you need the 3rd Gen Learning version.

[Patrick_Caezza]

Your system is only compatible with the Nest 3rd Gen Learning Thermostat.

You can wire it like this

Red - R to Rc

Orange - O to OB

Black - C to C

Yellow - Y1 yo Y1

Brown - E/W1 to *  (set as Emergency Heat)

Green - G to G

White - W2 to W2

[MelbaDT]

Hey folks, 

Thanks for the detailed answer and suggestions, Patrick_Caezza and Stuff. 

erikking18, I'm chiming in to check if everything is covered here. Let us know if you still have questions. 

Best, 

Melba

[MelbaDT]

Hey erikking18, 

Checking back in — how's your thermostat now?

Best, 

Melba

[MelbaDT]

Hi, 

I haven't heard from you in a while so I'll be locking this thread if there is no update within the day. If you have any new issues, updates or just a discussion topic, feel free to start a new thread in the community.

Best, 

Melba