1997 Cadillac DeVille Owner's Manual - Page 167

To avoid blowing cold air in cold weather, the system will delay turning on the fan until warm air is available. The length of delay depends on the outside air temperature, engine coolant temperature or the time With the automatic setting, the air conditioning As compressor automatically cycles when needed to cool since theengine was last started. the coolant warms the air. In cold weather, when the system senses the need up, the blower fan speed will gradually increase and air will flow from the heater outlets, with some airflow to for heat, the airflow will be directed out the floor the windshield to prevent fogging under most outlets. As the interiortemperature approaches a desired normal conditions. setting, the blower speed will decrease. maintain To interior comfort, the aifflow may move to the instrumentIf you leave your vehicle, the system will remember the panel air outlets and floor outlets (bi-level mode). On you control setting the next time start your engine, bright sunny days cold weather, the airflow may come except for recirculation and defrost. Each ignition cycle in out of the air conditioning outlets (AC mode) to cancels recirculation, whereas, DEFROST will change maintain cornfort and prevent stuffiness. to automatic operation when ignition is shut off and the then turned back on. To find your comfort zone, start with the 75°F (24°C) setting and allow about 20 minutesfor the systemto regulate. Press the red or blue temperature buttons to adjust the temperature necessary. If you choose 60°F if (16"C), the system will remain that maximum cooling at setting and will not regulate speed. If you choose the fan temperature of 90°F (32"C), the system will remain at that maximum heating setting and will not regulate fan speed. Choosing either maximum setting will cause not the system to heat or cool any faster. If your vehicleis sitting outon a hot day and you have it set on AUTO, air will firstflow out the floor air the outlets for a few seconds. That is normal. This is to expel hot air from the air outlets. As the air is cooled, the airflow will move through the conditioning air outlets. If you start your vehicle with the fan setting on HI, it will skip the air conditioning purge. 3-4