What is the generally accepted evaporator airflow range in residential air-conditioning?

The generally accepted evaporator airflow range in residential air-conditioning systems is 350 through 450 CFM (cubic feet per minute). This airflow range is crucial for ensuring optimal cooling efficiency and comfort in residential settings. When the airflow is within this range, it allows for adequate heat exchange within the evaporator coil, facilitating effective cooling of the air that circulates throughout the home.

Airflow that is too low can lead to insufficient cooling, increased humidity levels, and potential coil freezing, while airflow that is too high can reduce the time the air spends in contact with the evaporator coil, resulting in less effective cooling. Therefore, the 350 to 450 CFM range strikes a balance that is essential for maintaining both efficiency and comfort in residential air-conditioning systems.