Please try compatibility checker to identify compatibility entering old thermostat wiring. It supports Standard gas/electric HVAC Systems: 2-stage heating, 2-stage cooling and Heat Pump HVAC Systems: 3-stage heating, 2-stage cooling.
Please try compatibility checker to identify compatibility entering old thermostat wiring. It supports Standard gas/electric HVAC Systems: 2-stage heating, 2-stage cooling and Heat Pump HVAC Systems: 3-stage heating, 2-stage cooling.