1993 Chevrolet Lumina Owner's Manual - Page 102

Comfort Controls& Audio Systems Air Conditioning (CONT.) Heating and Ventilation HEAT When outside temperatures are cold, push HEAT.This will send most When you don't needto cool the outside air, usethese next settings.You of the heated airthrough the ductsnear the floor. Therest will come out of the can leave the air as it is or heat it. defroster ventsand side window The air conditioner compressor doesn't defogger vents. VENT and HEAT settings. run in the Defogging and Defrosting This reducesthe engine load, resulting There are two settings for clearing your in improved fuel economy (gas windows. For eachsetting, adjust the mileage). VENT: For mild outside temperatures, temperature control as desired. Theair will when little heating or cooling is needed, conditioner compressor run in these settings to remove moisture from push VENT. Air flow isthrough the the air whenthe temperature is above instrument panel outlets. Slide the freezing. temperature control lever to a comfortable level. BLEND: This setting allows half of the air to flow to thefloor heater ducts, and half to go to thewindshield and side window vents located inthe windshield pillars. Use this setting to warm passengers while keeping the windshield clear. The setting directs 90 through the defroster vents and the side window vents, and 10% to the floor.