Standard Features 7 day programmable with smart fan 3 heat/2 cool 3 configurable outputs for maximum flexibility Heat pump compatible Backlit, color-coded keys and legends Large, easy to read backlit display Configurable manual or auto changeover LED indicator glows green or red to indicate cooling or heating Service filter and UV light indicators Fahrenheit or Celsius display Non-volatile memory Keypad lock Up to 3-occupied periods per day Hi/Low outdoor temps of the day Energy Save Holiday mode Meets California commercial title-24 Accepts the IR Remote Control Accessory Accepts the Humidity Module Accessory Accepts the EZ Programmer Accessory Accepts the Comfort Call Telephone Accessory