These selections provide the logic for the basic Temperature Control Strategy for the application. The Discharge Air Control options (fixed setpoint and Reset from Outdoor Air Temperature) are designed for providing air to separately controlled zones. The Zone or Return Control options are designed for directly controlling a single zone (whether the sensor is in the zone or in the return duct). For single zone control, the application can optionally be configured to control the Discharge Air Temperature to a setpoint reset based on the Zone or Return Air Temperature.