Which component of an air conditioning system is responsible for removing heat from the indoor air?

The component responsible for removing heat from the indoor air in an air conditioning system is the evaporator. In the cooling cycle, the evaporator is situated inside the building and works by absorbing heat from the indoor air. As the warm air from the room passes over the evaporator coils, the refrigerant inside the coils absorbs the heat, causing the refrigerant to evaporate from a liquid to a gas. This process effectively cools down the indoor environment, making the air feel cooler.

The evaporator plays a crucial role in ensuring the efficiency of the air conditioning system, as it not only cools the air but also dehumidifies it during the process. In contrast, the other components have different functions: the condenser releases heat outdoors, the compressor pumps the refrigerant through the system, and the expansion valve regulates the flow of refrigerant into the evaporator. Each component works together to facilitate the overall cooling process, but the evaporator is specifically tasked with heat removal from indoor air.