Where is the evaporator coil of a refrigeration system most often built into?

The evaporator coil of a refrigeration system is most often built into the air handling unit. This is because the air handling unit plays a crucial role in circulating air within the system, and the evaporator coil is responsible for absorbing heat from the air that passes over it, thereby cooling the air before it is distributed throughout the space.

By integrating the evaporator coil into the air handling unit, the system efficiently manages the temperature and humidity of the indoor environment. This setup allows the coil to operate effectively, as it can harness airflow directly from the space that needs cooling. Additionally, the air handling unit can easily connect to ductwork, enabling smooth air distribution.

While the compressor unit is essential for pressurizing refrigerant, and a refrigerator does contain an evaporator coil, the air handling unit is specifically designed to facilitate air movement and thermal exchange, making it the most common location for the evaporator coil in various cooling applications. Similarly, the condenser unit functions to release heat rather than absorb it, which is distinct from the role of the evaporator coil.