How does the air conditioning system work?

The air conditioning system consists of a closed circuit of pipes that connect various components, and a central compressor that circulates the refrigerant inside the system. The compressor significantly raises the temperature of the gaseous refrigerant, which will then pass under high pressure to a condenser. This process causes the heat to dissipate and the gas to condense into a liquid. The coolant exiting the condenser – still under high pressure – then passes into a collector / dehumidifier, where moisture and other impurities are filtered before it encounters an expansion valve or a capillary tube (depending on the system)is located just in front of the evaporator. As it enters the evaporator, the coolant pressure drops sharply due to the expansion valve and this results in the evaporator cooling due to the change in coolant state from liquid to gaseous form. Like the condenser, the evaporator is a large surface heat exchanger that distributes the exhaust air to the surrounding area, before the “air conditioned” is injected by the ventilation system inside the car. The refrigerant is then returned to the compressor to repeat the process called the “A / C cycle”.

The control of the air conditioning in our vehicle every year contributes to the prevention of 90% of cases of malfunction.