One model can be used for single-stage and multi-stage applications. 7-day programming; 2 occupied/unoccupied periods per day. Individual temperature set points for: Occupied heat and cool; Unoccupied heat and cool. Proportional plus integral control eliminates temperature fluctuations. Intelligent Recovery™ automatically optimizes start time depending on building load. Intelligent Fan™ energizes fan only on call for heating or cooling during unoccupied periods. Automatic heat/cool changeover. Keyboard lockout eliminates tampering. One thermostat can be used for heat pump or conventional control (T7300F only). Optional remote sensors and override capability. Configurable to vary fan and reversing valve operation. Use with Q7300 to interface with C7400/W7459 economizer system for total integration of rooftop control. Convenient overrides allow temporary changes. No batteries required. Program settings are stored in permanent memory and are maintained during power failures. Q7300H LonMark™ communicating subbases for network, remote access and system integration applications.