What is the role of the A/C evaporator?

The A/C evaporator plays a crucial role in the air conditioning system of a vehicle by cooling the refrigerant as it flows. In this process, the evaporator absorbs heat from the inside of the vehicle, effectively lowering the temperature of the air that is then circulated into the passenger compartment.

As the refrigerant enters the evaporator, it is in a low-pressure, cold liquid state. When it passes through the evaporator coils, it absorbs heat from the cabin air, causing the refrigerant to evaporate and change into a gas. This heat exchange is what cools the air that is then blown into the passenger compartment, allowing for a comfortable environment inside the vehicle.

The other options primarily describe functions that do not align with the core purpose of the A/C evaporator. For instance, the evaporator does not store refrigerant or heat the air; that is the role of other components within the A/C system. Therefore, understanding the function of the evaporator as a cooling agent is essential, highlighting its importance in vehicle comfort and climate control.