Practical Guide: Controlling Noise From Large Rooftop Units
Rooftop HVAC equipment provides enticing features for the design engineer and cost advantages for the owner. Fans, ventilation equipment, a heat source, compressors, condenser, and controls are assembled in a compact unit ready for installation on a roof curb. Manufacturers assemble, test, and rate the entire package as a system. Moreover, locating the unit on the roof frees up floor space in the building.
Citation: ASHRAE Journal, vol. 42, no. 5, May 2000