NEST GEN 3 compatibility with Heat Timer - Two wire - Hot water rad via boiler.

[yhz]

Hey team! 

I have a Boiler which heats up baseboard radiators. 

Original Two wire T-stat is connected to the EXT+, EXT- inputs on the heat timer. 

Controlling the boiler is this unit:

https://www.heat-timer.com/wp-content/uploads/2019/04/DigiElite-SPC_Manual.pdf

Take a look at the manual above.

I see there is a 24VAC, COM, EXT+, EXT-. Therefore I can connect the nest to power, but it only asks for heat, and doesn't shut off at desired temp. 

ANY Tips / Advice is appreciated! 

Thanks team!! 

DOES ANYONE HAVE EXPERIANCE WITH THIS HEAT TIMER CONTROLLER? 

[Markjosephp]

Hello yhz,

Thank you for taking the time to let us know about your inquiry. I'd be happy to take a look at this for you.

Could you please share with us a photo of your thermostat's wiring? Also, from what country are you posting?

I'll look forward to your response.

Regards,

Mark

[Markjosephp]

Hey there,

I wanted to follow up and see if you are still in need of any help. Please let me know if you are still having any trouble from here, as I would be happy to take a closer look and assist you further.

Thanks,

Mark

[Markjosephp]

Hi yhz,

I'm checking in to make sure that you've seen my response. Please let us know if you have any additional questions or concerns before we lock this thread in 24 hours.

Thanks,

Mark