topic Re: C-wire how to install in steam boiler in Nest Thermostats

C-wire how to install in steam boiler

monserate123 — Wed, 05 Oct 2022 23:29:47 GMT

I would like to install the c-wire in steam boiler. I have the kit to install c-wire but don’t know where other two wires are install steam boiler

Re: C-wire how to install in steam boiler

Houptee — Thu, 06 Oct 2022 01:29:43 GMT

Is this for the Nest with the mirror glass front and only one R terminal, or do you have the Nest Learning model with Rh and Rc terminals on the base?

Take a pic of the old wiring on the thermostat and also the wiring at the boiler showing where the wires are connected.

Re: C-wire how to install in steam boiler

Patrick_Caezza — Thu, 06 Oct 2022 06:21:03 GMT

Typically when working with a boiler of any type, you will need an external 24Vac transformer and will have to do a little custom wiring.

Here is an example of how you'll need to wire it up.

Re: C-wire how to install in steam boiler

aatienza — Sun, 09 Oct 2022 18:39:34 GMT

Hey there,

Checking in — we hope you've got the answer you're looking for. Let us know if you have more questions in mind.

I appreciate the help, Houptee and Patrick_Caezza.

Thanks,

Archie

Re: C-wire how to install in steam boiler

aatienza — Wed, 12 Oct 2022 18:41:03 GMT

Hi there,

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

Thanks,

Archie

Re: C-wire how to install in steam boiler

EdwardT — Thu, 13 Oct 2022 19:26:41 GMT

Hi monserate123,

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