1996 Ford Bronco Owner's Manual - Page 94

Airflow selections VENT Use VENT to bring outside air through the instrument panel registers. You can heat the air in this position by rotating the center knob into the RED area. The air CANNOT be cooled below the outside temperature regardless of the center knob setting. Select NORM A/C or MAX A/C to get cool air through the instrument panel registers. NORM A/C Select NORM A/C to get refrigerated outside air through the instrument panel registers. The A/C position is used for cooling except when it is extremely hot or fast cooling of the vehicle is needed. Then, select MAX A/C for fast cooling and return to NORM A/C when you are comfortable. MAX A/C The MAX A/C position produces cool air more rapidly to provide faster cooling of your vehicle. This is possible because cooler air is drawn from inside the passenger area and refrigerated again instead of using warmer outside air. Using inside air will also make the fan sound louder which is normal when using MAX A/C. The air flow will be from the instrument panel registers. FLOOR Air flow will be to the floor when FLOOR is selected. The air cannot be cooled in the FLOOR position but can be heated by rotating the center knob in the RED area. 92