Does my Aprilaire model 8466 thermostat have an auto mode. A mode where it will switch between cooling and heating automatically when the temperature drops at night?
Thank you for contacting Aprilaire regarding your model 8466 thermostat.
Your thermostat is capable of utilizing the "AUTO" mode. The HVAC contractor should have set up you thermostat to allow access to this feature. In order to check; all you have to do is press the mode button to switch between "HEAT", "COOL", "AUTO", and "OFF". If "AUTO" does not appear in the mode section, you will need to contact you heating/cooling contractor to correct this.
If you have other question regarding you thermostat please feel free to contact us.