1997 Chevrolet Corvette Owner's Manual - Page 154
1997 Chevrolet Corvette Manual
Page 154 highlights
A Typical Cold Weather Example: Your vehicle has been parked outside ~ v e r ~ ~ iin h t g cold weather (below 32 OF/ 0"C) and you have set the driver temperature at 73 O (23 "C) and have selected F the AUTO mode. The system will automatically adjust the temperature output to maximum heating. The fan will start at a low speed. This is to avoid blowing cold air into the vehicle. The length of the delay depends on the amount of time since the engine was last started, the outside temperature and the engine coolant temperature. As the coolant warms up, the fan speed will gradually increase. Air will flow to the floor with some air to the windshield to prevent fogging under most normal conditions. As the interior of the vehicle warms up to your comfort set temperature, the fan speed will decrease and the temperature output may become cooler. If the interior temperature continues to warm up due to heatingfrom the sun or outside temperature increases, the system may switch to other air delivery modes (typically DEFOG or BI-LEVEL). A vpical Hot Weather Example: Your vehicle has Seen parked outside all day in hot weather (above 70 O F / 2 1 C) and you have set the driver temperature at 73"F (23 C ) and have selected O O the AUTO mode. The system will automatically adjust the temperature output tomaximum cooling. Theblower will start at a low speed momentarily to push the hot air to the floor of the vehicleand then go to a higher blower speed with cold airflow out of the instrument panel outlets.A small amount of airflow will continue through the lower ducts tocool the floor area. The air intake may start in the recirculated mode for maximum cooling performance. As the interior of the vehicle cools down to your comfort set temperature, the fanspeed will decrease and the temperature output may become warmer. The airintake may shift from recirculation to fresh air mode. If the interior continues to cooldue to a decrease in the amount of heat the vehicle is absorbing from the sun or a decrease in the outside temperature, the system could switch to other air delivery modes (typically BI-LEVEL or DEFOG). 3-7