I have no idea how it should be wired.I've already installed a Sensi for my downstairs unit without incident. Unfortunately, the upstairs thermostat is *really* old and the wiring looks different than anything I've ever seen. It doesn't appear that any of the connections are labeled at all.A photo is attached.Does anyone know if a Sensi would be compatible? And if so, any idea how to figure out how to wire it?https://ift.tt/2uaKJBR via /r/DIY https://ift.tt/2Y14wBy
