1998 Chevrolet Corvette Owner's Manual - Page 169

Air Conditioning On very hot days, your vehicle will cool down more quickly and economically if you open the windows long enough to let inside a r escape. Then keep your hot i windows closed in order to allow the airconditioning to work best. Maximum cooling will occur when the RECIRCULATE setting is operating, airflow direction is in the upper mode, and the temperature control knob (on a manual climate control system) is turned all the way to the bluearea. These settings will be selected by the Automatic Electronic Dual Climate Control System if operating in AUTO when maximum cooling is required. When the air conditioning is on, you may sometimes notice slight changes in your vehicle's engine performance and power. This isnormal. The system is designed to .help fuel economy while maintaining the desired cooling level. The a r conditioning removes moisture from the air, you i so may notice water dripping fi-om under your vehicle when it is idling or after it has been turned This is normal. off. Heating The heater works best if you keep your windows closed. Maximum heating will occur when airflow direction is in the lower mode and the temperature control knob (on a manual climate control system) is all theway in the red area. These settings will be selectedby the Automatic Electronic Dual Climate Control System if operating in AUTO when maximum heatingis required. The BI-LEVEL setting is designed for use on sunny days when the air is only moderately warm or cool. On days like these, the sun may adequately warm your upper body, but your lower body may not be warm enough. The BI-LEVEL setting will direct cooler airflow your upper to body and warmer air to the floor area. If you have the optional engine coolant heater and use it during cold weather 0°F (- 18 "C) or lower, your heating system will provide heat more quickly because the coolant is already warmed. See "Engine Coolant Heater" in the Index. 3-10