The car's A/C system is basically comprised of different parts. The most important parts include the accumulator, thermal expansion valve, compressor, condenser, and evaporator. All these components are needed for the system to operate and efficiently cool the car. On this page, you will learn more about the Porsche A/C evaporator.
What are the Functions of the Evaporator?
The primary function of the evaporator in your Porsche A/C system is to bring back the liquid refrigerant to its gaseous state. It turns the refrigerant into that state after it has passed into a vacuum where pressure from the refrigerant is lowered. Through this process, the heat is expelled out of the refrigerant thus cooling it than preparing it to absorb heat during the next cycle. In effect, the evaporator does the exact opposite of the function of the condenser.
Once subjected to pressure, the refrigerant goes into the A/C compressor in order to absorb heat. When heated, the refrigerant will now be ready to enter into the condenser where the refrigerant in its gaseous state will be liquefied. The cold liquid will then be drawn into the evaporator vacuum to turn the liquefied refrigerant into cold gas. This will then enter the compressor once the water has been removed and has been cooled.
Where Can You Find the Evaporator?
In most Porsche cars, you can find the evaporator right inside the passenger compartment, like you would in other cars. Depending on the type or make of the car, the number of evaporators inside the car may vary and there are commonly two evaporators for SUV's. In this case, the evaporator can be found with one in front and the other at the back of the car.
There are instances when the evaporator at the front is placed right under the instrument panel whereas the rear evaporator can be located at one side of the rear passenger seat's top panels. It will be good to go back to your car's manual to easily locate the evaporator whenever you need to replace one.
Other Things to Know about the Refrigerator
The evaporator can look like radiators but are smaller. It is made out of aluminum, typically, and as opposed to radiators that carry coolant, an evaporator carries a refrigerant. These refrigerants are commonly known as Freon which comes in different variants, the R134a being the most common these days. An environment-friendly version is the HFC-134a. Others call the evaporator as the Freon compartment but this should not be the case.
What are the Common Problems Encountered by the Evaporator?
Like other parts of the A/C system, the evaporator encounters some problems, the most common of which is refrigerant leakage. Corrosion, in another, is also common and is trapped in the evaporator vents which will then leak in some parts. When dust, leaves, and other organic matters are accumulated in the evaporator vents, then that will be the time that you will notice a foul smell in your car.
When you notice leak with your evaporator, you will need to replace it. Otherwise, the entire A/C system will be damaged. It is important to have this part maintained so that it can be checked whether debris or dirt have accumulated into the vents.