Wiring help

[rgaila]

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Original Poster: Timothy Bass 

Hey everyone,

Does the blue wire go into the slot for C or O/B on the Google Nest (none learning) Model GA02081-US?

It’s a gas furnace system. Here’s the wiring at the furnace.

[rgaila]

Hi Timothy, 

Thanks for reaching out to us and welcome to our community! I'm happy to help look into your wiring setup for you. 

Yes, that blue B-wire is plugged into C. This is your common wire, which will help keep your thermostat charged consistently via your HVAC system. O/B wires control your changeover valve (i.e., switching between hot/cool) for heat pump systems. It looks like you're set! 

However, if you run into any issues with setup, please reach out back here. Thanks! 

-From Ai, Community Specialist.