1997 Chevrolet Express Van Owner's Manual - Page 129

Fan Knob The knob on the left side of the heating system control panel controls the fan speed. The knob has four speed positions. To increase airflow, move the knob toward HI. To decrease airflow, move it toward LO. Temperature Knob The middle knob on the control panel lets you select the relative temperature of the air flowing into passenger the area of your vehicle. This knob will allow you to adjust the relative air temperature independently of the function knob setting. Move the knob clockwise toward the red area for warmer air. Move the knob counterclockwise toward the blue area for cooler air. Mode Knob The right knob on the control panel changes the heatedair conditioning setting. the vehicle's interior reaches a comfortabletemperature, move the knob clockwise to place the air conditioning system in the A/C mode. A/C: Use for normal cooling on hot days. This setting cools outside air and directs it through the instrument panel outlets. BI-LEVEL A/C: Use this setting to divide airflow between the heater floor vents and instrument panel vents. The air conditioning compressor may operate in this setting to coolthe air. VENT This setting directs air through the instrument panel vents. 'fl I,. /J +e 0 +HHEAT This setting directs air through the heater floor vents. This setting is useful for cold weather. MAX A/C: Move the right knob to MAX A/C for maximum cooling. This setting puts the system in the recirculation mode and helps to maximize your air conditioner's performance and your vehicle's fuel economy. This setting also coolsthe air the fastest. After HEATmEFROST: Use this setting to divide airflow between the heater floor vents and windshield. DEFROST This setting directs air through the windshield defroster vents. This setting is useful when you have fog or ice on the windshield. +# w e 3-4