Can the Air Conditioning Be Turned On When the Car Is Only Powered On?
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For electric vehicles, the air conditioning can be turned on without starting the car. However, conventional fuel-powered vehicles cannot do this because their air conditioning systems rely on the engine to operate. If the car is only powered on but not started, the air conditioning cannot be used. The functions of car air conditioning include the following: 1. Temperature Adjustment: This is the primary function of car air conditioning. In summer, the cooling system produces cold air to lower the temperature inside the cabin. In winter, except for large commercial vehicles that use independent combustion heaters, most vehicles utilize residual heat from the engine for heating. 2. Humidity Adjustment: Humidity greatly affects the comfort of passengers inside the car. The humidity inside the cabin should generally be maintained between 30% and 70%. Standard car air conditioning systems do not have the capability to adjust humidity; this can only be achieved through ventilation systems or advanced luxury vehicles equipped with integrated heating and cooling air conditioning units. 3. Airflow Adjustment: The speed and direction of airflow significantly impact comfort. If the air is blowing directly, the speed should be limited to a certain range when the temperature is appropriate. The airflow speed can be adjusted based on passengers' living environment, age, health condition, and personal preferences regarding temperature.