T-stat voltage showing 36vac

[GM79]

I've got multiple AC units showing 36vac can nest handle that? 

[Jhonleanmel]

Hi GM79,

Thanks for your interest and for posting.

Google Nest thermostats are designed to work with most 24 V systems, even older systems. They work with all common fuel types including natural gas, oil, and electricity. 

Check this guide for more details.

Best,

Mel

[Jhonleanmel]

Hey there GM79,

Checking back in should you still have some questions here. Let us know by replying to this thread. 

Best, 
Mel

[EmersonB]

Hi everyone,

@GM79 just one quick final check in here since activity has slowed down. We'll be locking the thread in the next 24 hours, but if you still need help, I would be happy to keep it open. If there's more we can do, just let me know.

Thanks for lending a hand, Mel.

Regards,
Emerson

[GM79]

Has anyone heard of a 36v system?

[EmersonB]

Hello GM79,

Thanks for getting back to us. If you go back to the link that Mel has shared above, it says there that while most 24 V heating and cooling systems are compatible with Nest thermostats, there are some systems that aren’t compatible. For us to be sure, could share with us the wiring setup of your existing Nest Thermostat and the make and model of your current HVAC system.

Looking forward to your response.

Regards,
Emerson

[EmersonB]

Hi GM79,

How's it going with your Nest Thermostat? We would appreciate it if you could share with us the information I'm asking above. So that we could take a closer look and assist you further.

Best,
Emerson

[EmersonB]

Hey GM79,

We haven’t heard any updates from you. I’ll go ahead and lock this thread in 24 hours. If you're still in need of assistance, feel free to start a new thread and we'll be happy to help.

Best,
Emerson