Hvac

Thermostat Wiring

in how-to     2 min. read

September 8, 2011

I have delusions of possibly making an embedded thermostat solution that tracks energy usage, inside and outside temperature and humidity and possibly online weather forecasts for setting house temperature. For this to work, I need to fully understand thermostat wiring. It took a bit of looking around the net to identify thermostat wire colors, thermostat terminals and functions, so I thought I would summarize it in a post. All signals are 24 VAC controlled

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