1997 Chevrolet Express Van Owner's Manual - Page 127

Comfort Controls This sectiontells you how to make your air system work for you. Your comfort control system uses ozone-friendly R- 134a refrigerant. With these systems, you can control the heating, cooling and ventilation in your van. Your vehicle also has a flow-throughventilation system described later in this section. Fan Knob The left knob 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. To turn the fan off, move the mode knob on the far right to OFF. Temperature Knob The middle knob panel lets you select the relative temperature of the air flowing into the passenger 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 counter clockwise toward the blue area for cooler air. Heater Controls If your vehicle does not have air conditioning, your heater controls will look like this. 3-2