What is the Difference Between the Internal and External Circulation of a Car's Air Conditioning?
1 Answers
The difference between the internal and external circulation of a car's air conditioning: 1. Symbols for internal and external circulation: The internal circulation symbol is a circular arrow inside the car graphic; the external circulation symbol is an arrow entering the car from outside. 2. Operation methods of internal and external circulation: In internal circulation, air only circulates inside the car without exchanging with the outside air; in external circulation, the air inside the car is connected with the outside air, with outside air flowing in from the front intake and out from the rear exhaust. The use of internal and external circulation should be flexible, chosen based on the driving environment: 1. During traffic jams: Use internal circulation for the air conditioning, as external circulation would draw exhaust fumes from outside into the car. 2. General air conditioning cooling: Use internal circulation to quickly lower the temperature inside the car. Once the temperature stabilizes, appropriately switch to external circulation to exchange air with the outside. 3. Cooling the car after outdoor exposure to sun: First use external circulation for the air conditioning, and you can also open the windows to speed up heat dissipation. After a few minutes, close the windows, switch to internal circulation, and turn on the cooling.
