1998 Chevrolet Astro Owner's Manual - Page 154

Comfort Controls This section tells you how make your air system to work for you. Your comfort control system uses ozone-friendly R- 134a refrigerant. With these systems, you control the heating, can 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. Heating/Air Conditioning System Temperature Knob This knob is next to thefan knob. It selects the temperature of the air flowing into your vehicle. Move the knob toward the rightfor warmer air. Move the knob toward the leftfor cooler air. Function Knob This knob is next to the temperature knob. OFF: This setting turns the system off. MAX N C : This cools the air the fastest, by recirculating the inside air.Move the temperature knob all the way tothe left. A/C: This setting brings inoutside air and cools it. If your vehicle has air conditioning, your heating/air conditioning controls will look like this. 3-2