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Nest Learning Thermostat Compatibility

rwherrmann
Community Member

Wondering if this wiring setup works with latest Nest Learning Thermostat?

 

https://photos.app.goo.gl/cV11vV2wi1cBVg7j9 

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CoolingWizard
Platinum Product Expert
Platinum Product Expert

@rwherrmann 

Your thermostat wires are a stranded wire and also you’ll probably find that your system is operating at 120 V AC. Nest thermostat only operate on a 24 V AC.  Use a multimeter, set it on AC voltage and measure the voltage between the R and the C and see what you get. 

AC Cooling Wizard

Google Pro, Mechanical Engineer, Electrical Engineer and HVAC service company owner.