What is the primary problem caused by air velocity, according to industry standards?

The primary problem caused by air velocity, according to industry standards, is noise. High air velocity within an HVAC system can lead to excessive sound levels, which may be disruptive to occupants in a building. When air moves quickly through ducts, it generates turbulence, leading to noise that can vary in pitch and intensity. This is particularly critical in environments where comfort and concentration are important, such as in office spaces, classrooms, or residential areas.

Controlling air velocity is essential not only for maintaining comfort but also for ensuring that the HVAC system operates within acceptable noise levels as specified by industry guidelines. By addressing issues related to noise caused by high air velocity, HVAC professionals can design systems that provide better acoustic comfort, enhancing the overall experience for the building's occupants. This aspect underscores the importance of balancing performance with user comfort in HVAC design.