nest relay

[ebag76]

Hello, I'm trying to find out if the nest thermostat relay will work on a 2 wire system.   Running a C wire will really be difficult and The Hvac tech and i need to know if it will work before we  waste our time or money. 

Thank you

[Ryan_G]

Hi ebag76,

Thanks for reaching out and we're sorry for the delay.

Nest thermostats are designed to use very little power, and in many cases they can use your system’s heating and cooling wires to get enough consistent power. But sometimes, you may need to connect a common wire (C wire) or power accessory, like the Nest Power Connector, to make your system compatible.

Check out this link to know more.

Hope it helps.

Regards,

Ryan

[control]

Relays will have indicators that can be controlled, and Google nest only identifies the use of 24-volt power. My heater is the heat control zone valve

[Ryan_G]

Hi control,

Thanks for sharing your thoughts here in the community. 

@ebag76, I hope this answers your question. If you have further inquiry, you may reply to this thread and we all  here in the community will be glad to help.

Best regards,

Ryan

[Ryan_G]

Hey folks,

I just wanted to follow up and see if you're still in need of help. Please let us know as we would be happy to answer any questions you may have. 

Best regards,

Ryan