1997 Chevrolet Astro Owner's Manual - Page 148

Comfort Controls This section tells 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 vehicle. Your vehicle also has a flow-through ventilation system described later in this section. Fan Knob This control has four positions. To increase airflow, turn the knob toward HI. To decrease airflow, move it toward LO. Temperature Knob This knob is next to the fan knob. It selects the temperature of the air flowing into your vehicle. Move the knob clockwise for warmer air. Move the knob counterclockwise for coolerair. Heating/Air Conditioning System Function Knob This knob is next to the temperature knob. OFF: This setting turns the system off. MAX A/C: This cools the air the fastest, by recirculating the inside air. Move the temperature knob all the way counterclockwise. A/C: This setting brings in outside air and cools it. If your vehicle has air conditioning, your heatinghir conditioning controls will look like this. 3-2