What is the minimum airflow requirement for a ton of air conditioning in CFM?

The minimum airflow requirement for air conditioning is often established at 400 cubic feet per minute (CFM) per ton of cooling capacity. This means that in a typical air conditioning system, each ton of cooling capacity should adequately circulate about 400 CFM of air in order to effectively provide the necessary cooling and maintain comfort levels within a space.

This value is based on standard heating, ventilation, and air conditioning (HVAC) practice guidelines, which consider factors such as heat transfer, humidity control, and energy efficiency. Achieving this airflow ensures that the system can handle the thermal load efficiently, distributing cooled air throughout the area.

While certain conditions can lead to differing airflow recommendations, such as higher indoor design temperatures or significant static pressure issues within the duct system, the common standard rests at the 400 CFM mark. Understanding this baseline is crucial for HVAC professionals when designing and implementing cooling systems, ensuring optimal performance and energy efficiency.