topic Re: Nest wiring question in Nest Thermostats

Nest wiring question

EZesq — Sun, 12 Feb 2023 02:16:49 GMT

Hi again. Posted this photo before and now have a photo of the front of the old thermostat. All I know is that this runs a heat pump. Don’t know where on the outside unit Id need to take more pix of. Any chance anyone has a clue how to transfer this to a Nest thermostat?

Re: Nest wiring question

Patrick_Caezza — Sun, 12 Feb 2023 08:39:14 GMT

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

Try this wiring

Green - G to G

Dark Blue - B to C

Red - R to Rc

Yellow - F to not used, tape off

White - W to W2 (set as AUX Heat)

Blue - X2 to *(set as Emergency heat)

Brown - O to OB

Re: Nest wiring question

EZesq — Sun, 12 Feb 2023 17:28:52 GMT

Thanks. What about that lighter yellow on Y?

Re: Nest wiring question

Patrick_Caezza — Mon, 13 Feb 2023 03:29:55 GMT

Oops, my bad

Yellow - Y to Y1

Re: Nest wiring question

Markjosephp — Wed, 22 Feb 2023 15:48:55 GMT

Hello folks,

I wanted to ensure that everything was covered here.

I appreciate your help with the wiring setup. @Patrick_Caezza.

@EZesq, I'm checking in to see if you were able to install a Nest Thermostat. How's it going? Please let us know if you need more help so we can assist you right away.

Thanks,

Mark

Re: Nest wiring question

Jake — Mon, 27 Feb 2023 18:06:46 GMT

Hey there,

I wanted to check in and see if you are still in need of any help. Please let me know, as I would be happy to assist, and answer any questions you may have.

Best regards,
Jake

Re: Nest wiring question

Jake — Tue, 28 Feb 2023 18:57:06 GMT

Hey there,

I wanted to check in, and let you know that I will be locking the thread in 24 hours.

Best regards,

Jake