Wiring nest thermostats

[mtvathome]

Hi,

how do I wire the nest Learning thermostat v3 stat with coming from this? 

 

[Patrick_Caezza]

You have a basic heat pump system.

Give this wiring a try.

Yellow - Y to Y1 (jumper to W not needed)

Green - G to G

White - O to OB

Red - Rc to Rc (jumper to R not needed)

I strongly recommend adding a C wire to ensure you don't have power problems down the road.

Check to see if there is an extra wire going from the thermostat to the Air Handler, run a new 5-wire thermostat cable, or if there isn't, you can use the Google Nest Power Connector.

[EdwardT]

Hi folks,

@Patrick_Caezza, thanks for the help!

@mtvathome. how's it going with your Nest Thermostat? Were you able to follow the steps provided by Patrick? Let us know if you have other questions and we'd be glad to assist you.

Thanks,

Edward

[EdwardT]

Hi mtvathome,

It's me again. I wanted to check back in to see if you have other questions and concerns. Feel free to let me know if you do. 

Thanks,

Edward

[EdwardT]

Hi mtvathome,

I'm just checking in to make sure that you've seen our response. Please let us know if you have any other questions or concerns as I will be locking this in 24 hours.
 

Thanks,

Edward