Nest thermostat Install

[Hippohelm]

 

Can anyone help me out with wiring? I have a 2 stage furnace and I believe 1 stage central AC. Trying to use the regular nest thermostat

 

 

 

[Houptee]

Yes you have 2 stage heating.

White W1 to W

Black W2 to the OB*

Red to R

The Yellow to Y

Green to G

If you have an extra unused wire in the wall (blue is preferred color if you have one) put it on C and then on the furnace connect it to the COM screw that will be your C wire.

It might work ok without the C but always best to connect one if you can.

Then during the setup tell the Nest the OB* wire is for 2nd stage heating (Do Not set up as a Heat Pump).

[EdwardT]

Hi folks,

@Houptee, thanks for the help!

@Hippohelm, how's it going with your Nest Thermostat? Still need our help?

Thanks,

Edward

[EdwardT]

Hi Hippohelm,

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 Hippohelm,

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

[Hippohelm]

Nope I’m all set! It’s working now!! Thanks a ton!

[EdwardT]

Hi Hippohelm,

Thanks for the update. I'm glad to hear that it's working fine now. I will be locking this thread now. Please feel free to create a new thread should you have some more questions or concerns in the near future and we'll be more than glad to help.

Thanks,

Edward