
To turn on the car air conditioning and heater, follow these steps: 1. Start the car; 2. Press the AC button to activate the air conditioning; 3. Wait until the water temperature rises to the normal level; 4. Turn the knob to the red zone to switch to the heater mode. The car air conditioning system consists of a refrigeration system, heating system, ventilation and air purification devices, and a control system. The functions of the car air conditioning system include: 1. Achieving a cooling effect through the continuous circulation of refrigerant; 2. Utilizing engine coolant, waste heat, or heat generated by a burner as a heating source, which is then distributed by the blower to warm the air inside or outside the car, raising the temperature at the air outlets for heating purposes; 3. Drawing in fresh external air for ventilation and air exchange, which also helps prevent windshield fogging; 4. Removing dust, odors, smoke, and toxic gases from the car's interior to freshen the air, as well as humidifying the air to increase its relative humidity.

As a long-distance driver, using air conditioning and heating should be adjusted according to the weather. In summer, when getting into the car and feeling uncomfortably hot, I first start the engine to let the fan run, locate the obvious AC button on the center console, press it until the light turns on, indicating the air conditioning is activated, then turn the temperature control knob to the blue zone to cool down. In winter, for heating, after the engine warms up, simply rotate the temperature knob to the red zone, and the system automatically uses the engine's residual heat to warm the air without needing to press the AC button to activate the compressor. Additionally, regularly check the cabin air filter to prevent clogging, maintain clean air, and avoid bacterial growth that could affect health. Developing this habit can make driving more comfortable and safer.

As an average car owner, using the air conditioning in daily driving is quite simple. After starting the engine and letting it stabilize, press the AC button to activate the compressor. If the cooling feels insufficient, manually adjust the fan speed button to increase airflow. Using the heater is even more straightforward—only needed in winter. Once the engine reaches normal operating temperature, turn the temperature knob to the heat zone, and warm air will flow naturally without consuming extra electricity like the AC does. I recommend beginners first check the owner's manual to locate the buttons, as center console designs vary across models. Also, remember to use the external air circulation mode wisely to switch air sources and prevent window fogging.

Efficiently controlling the air conditioning and heating while driving. After starting the car, wait for the warm air to come on before turning it on. In summer, press the AC button to activate cooling and lower the temperature; in winter, turn the temperature knob higher to use the heater. Remember to avoid frequently turning the air conditioning compressor on and off to save fuel.


