Nest 3rd Gen Install

[Rayzaz]

Has anyone installed a 3rd generation with three wires red, white and black. If so, what are you connecting these wires too on the base?  

Pics would help. 

[Derickf]

Hi @Rayzaz ,

Thank you for reaching out to the community. I can understand how important it is for you to confirm how to install a Nest Learning Thermostat 3rd gen. I'll be more than glad to help you with your matter.

To better assist you, I need more information:

• What type of HVAC system do you have?
• Please provide me with a picture of the wiring in your current thermostat.

In the meantime, you can take a look at the following articles; you will find information about the Nest Learning Thermostat 3rd gen compatibility and videos about how to install it: Nest thermostat compatibility, Install your Nest thermostat.

I’ll be waiting for your reply.

Best regards,

Derick.

[Rayzaz]

Hi Derick,

It’s a gas furnace with AC. For some reason I cannot attach a photo. The previous thermostat is a Honeywell with a red wire to R Jumper to RC, white wire to W and a Black wire to Y. 

I have read these articles previously but they didn’t seem to provide the information I was looking for to assist. 

—Ray

[Derickf]

Hi there!

Thanks for your reply. In order to receive further assistance, please fill out this form with all the necessary information, like the thread title or link and your username in the community. Once you've completed the form, let me know. Someone from my team will contact you shortly to help you with the installation of your Nest Thermostat 3rd gen. Because it is necessary to take a look at the previous wiring to connect the new thermostat correctly.

I’ll be waiting for your reply.

Regards,

Derick.