topic Re: Google Nest Thermostat Snow work with AA battery or must have 24 VAC power in Nest Thermostats

Google Nest Thermostat Snow work with AA battery or must have 24 VAC power

briancam2470 — Sat, 16 Apr 2022 02:31:51 GMT

Google Nest Thermostat Snow work with AA battery or must have 24 VAC power

Re: Google Nest Thermostat Snow work with AA battery or must have 24 VAC power

Patrick_Caezza — Sat, 16 Apr 2022 03:05:04 GMT

It depends on the wiring and how the system is set up.

If you use the compatibility checker it will tell you if you need a C wire or not.

Personally, Just use the Nest Power Connector if you don't have a C wire and don't have a spare wire to make one.

Re: Google Nest Thermostat Snow work with AA battery or must have 24 VAC power

briancam2470 — Sun, 17 Apr 2022 00:12:54 GMT

My in-floor house GAS Heater is TWO millivolt wires to Two AA batteries powered programmable thermostat. Will the Nest work without 24 VAC C wire? Or is 24 VAC C wire also the POWER to the NEST? I see Two AA batteries of to the side, are these for backup power only?

Re: Google Nest Thermostat Snow work with AA battery or must have 24 VAC power

sporfrog — Sun, 17 Apr 2022 04:28:55 GMT

The batteries are primarily for backup power purposes.

Regarding the millivolt system, review the incompatibility information here:

https://support.google.com/googlenest/answer/9246656?hl=en

Re: Google Nest Thermostat Snow work with AA battery or must have 24 VAC power

Patrick_Caezza — Tue, 19 Apr 2022 03:58:18 GMT

You can not run a Nest thermostat directly off of a Millvote system, but you can if you use an external 24VAC transformer and a simple relay.

This is one way to do it.

Re: Google Nest Thermostat Snow work with AA battery or must have 24 VAC power

briancam2470 — Tue, 19 Apr 2022 04:10:07 GMT

Yes this is what I needed to KNOW -- Thanks Brian

Re: Google Nest Thermostat Snow work with AA battery or must have 24 VAC power

MelbaDT — Fri, 22 Apr 2022 06:48:08 GMT

Hey folks,

Thanks for responses, sporfrog and Patrick_Caezza.

briancam2470, I'm glad that you've found the answers you're looking for. Let us know if you have more questions in mind.

Best,

Melba

Re: Google Nest Thermostat Snow work with AA battery or must have 24 VAC power

MelbaDT — Wed, 27 Apr 2022 03:53:38 GMT

Hi,

I haven't heard from you in a while so I'll be locking this thread if there is no update within the day. If you have any new issues, updates or just a discussion topic, feel free to start a new thread in the community.

Best,

Melba