1994 Chevrolet Astro Owner's Manual - Page 132

Heating System I If your vehicle does nothave air conditioning, this is what your heating system will look like. Fan Lever The top lever has four positions. To increase theair flow, move thelever toward HIGH. To decrease the air flow, move it towardOFF. Temperature Lever The left lever lets you select the temperatureof the air flowing into your vehicle. Move the lever up for warmer air. Move thelever down for cooler air. Function Lever The right lever can be moved to five different functions. DEFROST The setting with the defrost symbol operates the defroster. Most of the air comes out near the windshield, with some going to the floor vents and front side windows. Use this when you fog or ice on the get windshield. HTR (Heater): Most of the air comes out near the floor. The rest comes out from the defroster vents under the windshield and the front side windows. at This is best for cold weather. VENT The air comes out at the vents on your instrument panel. BLEND (Position 1): With this setting, the heated outside air comesout between the heater vents anddefroster vents. The lever can be positioned anywhere between to adjust proprotion of air coming through. Adjust the temperature lever for warmer or cooler air. BLEND (Position2: With this setting, the heated outside air comes out ) between the vents and heater vents. lever can be positioned anywhere The between to adjust proprotion of air coming through. Adjust temperature the lever for warmer or cooler air. 3-4