v Reviewers The authors and publisher wish to thank the industry and teaching professionals listed below for their valuable input into the development of Modern Refrigeration and Air Conditioning. The authors and publisher wish to express particular gratitude to the following individuals: Anthony L. Baham South Central Louisiana Technical College Morgan City, Louisiana David Blais Ivy Tech Community College Indianapolis, Indiana Terry Bradwell Midlands Technical College West Columbia, South Carolina Stevan Brasel Moraine Valley Community College Palos Hills, Illinois Michael Brock Florida Coast Career Tech/Florida State College at Jacksonville Jacksonville, Florida Mark R. Buller British Columbia Institute of Technology Burnabay, British Columbia, Canada Dr. Christopher Molnar, of Porter and Chester Institute, for writing three sections for and providing a detailed technical review of the thermostats chapter. Greg Jourdan, of Wenatchee Valley College, for his detailed technical review of the electrical controls systems and energy management content. Don Crawshaw, of Salt Lake Community College, for his detailed review of commercial refrigeration chapters. Randy F. Petit, Sr., of HVAC Excellence, for his extensive review and suggestions. Howard Weiss, of HVAC Excellence, for his detailed review of certifi cation and industry association and general guidance. Jerry Weiss, Thomas Tebbe, and Coy Gibson, all of HVAC Excellence, and Warren Lupson, of PAHRA/AHRI, for their frequent and generous contributions of guidance and wisdom. Danny Burris Eastfi eld College of the Dallas County Community College District Mesquite, Texas Terry Carmouche South Central Louisiana Technical College Reserve, Louisiana Michael Chandlee Tennessee Technology Center at Pulaski Pulaski, Tennessee James Conway Lindsey-Cooper Refrigeration School Irving, Texas Rick Dorssom Hillyard Technical Center St. Joseph, Missouri Patrick Duschl Fortis College Cincinnati, Ohio George Frank British Columbia Institute of Technology Burnaby, British Columbia, Canada Rod Fronk Wichita Technical Institute Topeka, Kansas David W. Fuller Clovis Community College/Air One HVAC Sales and Service Clovis, New Mexico/Portales, New Mexico Tim Gohdes Central Texas College Killeen, Texas Brad Guthrie Front Range Community College Fort Collins, Colorado Marvin J. Hamel Locklin Technical Center Milton, Florida