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Google nest wiring

Alan07
Community Member

‎11-27-2024 02:38 PM

Have a old worcester greenstar 30cdi combination boiler with built in timer on front. Looking for advice to connect a nest to this boiler. Do you have to unplug the on board timer?

Wiring goes ls lr to 2 common and 3 call for heat with live and neutral wired to power nest? 

Anyone help advise or have diagram be much appreciated thanks

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Eitanros
Community Specialist
Community Specialist

‎11-30-2024 02:11 PM

Hello @Alan07, 

Thank you for reaching out to the community. I understand you want connect your HVAC system to our Nest thermostat. I'm happy to help you! 

To provide the most accurate guidance, I'll need some additional information:

  • Please, attach a photo of the current wiring configuration.
  • Do you have a conventional or heat pump system?
  • What Nest thermostat do you have?
  • If you feel comfortable, please attach a picture of the current wiring of the control board. 

 Please, keep me posted!

 

Best regards,

Eitan 

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