Nest thermostat compatibility

[Ace123]

Hi,

Can you tell me if my existing wiring attached is compatible with a nest thermostat? (not the learning version)

With regard to the existing jumper wire do I insert the wire used in the jumpered connection into the nest W1 or Y connection hole?

Thanks 

Edit: I can't seem to post a photo of my wires ...hmmm

[cifuentesj]

Hi @Ace123,

Thank you for your timely post and the comprehensive information you've provided. I understand you want to know if your existing wiring is compatible with a Nest Thermostat. I'm here to help you find a solution together.

To assist you further, please attempt the following question:

• Could you tell me what your prior thermostat's terminal configuration was?

Please keep me posted.

Warm regards,

Jeremy.

[Ace123]

G

C

R

Y wire with a jumper to W1

W2 

O

Those are my existing wires. I have a standard nest thermostat.

[cifuentesj]

Hi @Ace123,

Thank you for your timely post and sharing the information you've provided. In this case you need to do the following: Follow the same connections that you gave in your post, and it is not essential to connect the jumper wire between Y1 and W1.

In addition, you can check out this article to follow: Install your Nest thermostat.

Let me know how it goes and keep me posted.

Warm regards,

Jeremy.

[Ace123]

So which wire should be connected to the nest thermostat Y1 or W1?

If they are not jumpered I assume only one would be connected. 

Thanks for your response.