let’s get some insight on what makes a car AC functions ie. the components. Starting with the;
Compressor
As the name suggests, is responsible for compressing the refrigerant. It works like a pump that pressurizes the refrigerant and passes it on to the evaporator. The compressor is driven by a drive-belt which also powers the power steering, water pump etc.
Refrigerant
It is a fluid that is contained within the coils of a car AC system that makes the whole cooling thing possible. The most common refrigerant used in Car AC is the R134-a, also known as Tetrafluoroethane. Prior to 1993, the most widely used refrigerant was the R-12 a.k.a Freon which was quickly replaced due to its harmful environmental impact.
Condenser
A condenser is a mesh of coils arranged in a zig-zag pattern that removes the heat from the compressed gas. It acts as a heat exchanger which cools the refrigerant changing its state from gas to liquid.
Evaporator
The evaporator is quite opposite to a condenser. It converts the liquid refrigerant back to its gaseous state simultaneously dissipating the heat and cooling it further. It is located inside the car typically hidden behind the dashboard.
Expansion Valve
The expansion valve works in tandem with the evaporator to control the pressure of the AC refrigerant through the AC system.
Dryer/Accumulator
The dryer unit contains desiccant which is responsible for pulling away moisture that can seep into the AC system and the cabin.
Turn on the blower, push the AC button and enjoy the cool and comfortable cabin.