KANSAS CITY, Mo. — Can air terminal units be quiet? Yes, if proper attention is given to their placement and installation. This was the opinion of four speakers at “Controlling Noise From Terminal Boxes,” a seminar given at the 2003 Annual Meeting of the American Society of Heating, Refrigerating, and Air-Conditioning Engineers (ASHRAE).
Don’t pay proper attention, however, and you risk significant noise problems. Once considered a minor point of air system noise, research points to terminal units as being a major source of noise radiation into the room.