Similar to the usual “car air conditioner” reduces fuel consumption

An air conditioner is more than just a convenience; As it ensures comfortable air in the car cabin and avoids fatigue and exhaustion while driving, in addition, it is more fuel-efficient compared to driving with the windows open. There are some differences between HVAC systems, and they need to be maintained regularly by professionals.

Explaining the principle of operation of the air conditioner, Karsten Graf of the German Automobile Club (ADAC) said that the refrigerant is evaporated in a closed circuit, thus drawing out the heat of the surrounding air, which can be compared with the principle of the refrigerator. On the other hand, the formed gas is liquefied through a compressor again, and then the heat is discharged again.

It is true that the basic principle may be the same for all air conditioning systems, but there are different types of compressor units. Graf made it clear that simple compressor units have only a fixed flow volume, and the cooling capacity cannot be regulated by them, and they can only be turned on and off.

Automatic air conditioners

Automatic or semi-automatic air conditioners are more effective; Because it provides the necessary amount of cooling only through the variable supply volume to the compressor units, the automatic system regulates the temperature automatically, for example when the temperature rises due to sunlight.

Graf added that there are dual and four-zone air conditioners, in order to adjust the temperature for each area individually, and in the end, the choice of the car owner for the type of air conditioner depends on the degree of comfort required and saving expenses.

The technical expert advises before buying the car to conduct a test of the car air conditioner; There is a large disparity between cars in air flow, which is important for people who are sensitive to drafts.

For his part, Ulrich Koster of the Central Automobile Industry Association said that in the case of small cars, which are used for short travel distances, a single-zone air conditioning system is sufficient.