Comprehensive in scope, this second edition of a bestseller discusses how HVAC systems operate, as well as how to select the right system and system components to achieve optimum performance and efficiency for a particular application. The author delineates specific ways in which each system, subsystem or component contributes to the indoor environment, as well as what factors have an impact on energy conservation, indoor air quality, and cost. He examines compressors, water chillers, fans and fan drives, air distribution and variable air volume, pumps and water distribution, controls and their components, heat recovery, and energy conservation strategies.