Compatibility

[cmcosta]

Please see pic, if current configuration is compatible with Nest and what are the correct connections? not just YGR etc, a couple of others, not quite standard like the Nest,

 

 

W2/WE…see pic.
thanks for looking and your help.

[Houptee · Accepted solution]

You have 2 stage heat system and single stage AC.

So connect

white to W and

brown to OB*

red to R

yellow to Y

green to G

Then in the setup you have to tell it the kind of system you have, forced air heat and cooling.

Tell it to configure the OB* wire as 2nd stage heat

[Houptee · Accepted solution]

You have 2 stage heat system and single stage AC.

So connect

white to W and

brown to OB*

red to R

yellow to Y

green to G

Then in the setup you have to tell it the kind of system you have, forced air heat and cooling.

Tell it to configure the OB* wire as 2nd stage heat

[cmcosta]

Wow, Thanks for the info.
I’ll give a try later this week.

[CoolingWizard · Accepted solution]

When you use the Google Nest Compatibility Checker, you can see that the */O/B connector is programable and can be programed to the W2. You must identify your wires as R, Y, G, W, and W2. Your system has two stages of heating. Here is the link to the Google Nest Compatibility Checker
https://store.google.com/us/widget/compatibility/thermostat

Ken, The AC Cooling Wizard

[cmcosta]

Thank you for the info. I’ll try later this week.

[EdwardT]

Hi folks,

@CoolingWizard, thanks for the help!

@cmcosta, thanks for reaching out. Let us know the results once you've tried the steps. Keeps us posted.

Thanks,

Edward

[EdwardT]

Hey cmcosta,

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 cmcosta,

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