Function Selector Modes: Def/FLR
WARNING: This page is about a different car, the 1995 Ford RV Cutaway, 1995 Ford Econoline, 1995 Ford Cutaway, and 1995 Ford Club Wagon. However, it is still accessible from the selected car via links, so may be relevant.
In DEF/FLR (defrost/floor) mode, outside air is allowed into system. Vacuum is not applied to outside/recirculated air and panel/defrost vacuum motors. The floor/defrost vacuum motor receives partial vacuum, allowing equal outlet airflow. Blower motor speed and temperature can be adjusted to desired settings.