v Reviewers The author and publisher wish to thank the following industry and teaching professionals for their valuable input into the development of Essential Electrical Skills for HVACR: Acknowledgments The author and publisher would like to thank the following companies, organizations, and individuals for their con- tribution of resource material, images, or other support in the development of Essential Electrical Skills for HVACR: Terry Carmouche River Parishes Community College Gonzales, LA Samuel A. Heath Southern Technical College Brandon, FL John Labriola West Virginia Northern Community College Wheeling, WV Charles William (Bill) Ledford Pikes Peak Community College Colorado Springs, CO Richard L. Pasznik Lincoln Technical Institute Union, NJ Richard J. Ruscigno Lincoln Technical Institute Union, NJ Frank Sloan Lincoln Technical Institute New Britain, CT Charles Smith Lincoln Technical Institute Cobb, GA Carel Industries Carrier Corporation, Subsidiary of United Technologies Corp. Danfoss Dial Manufacturing, Inc. DiversiTech Corporation Emerson Climate Technologies Hubbell Inc. Ideal Industries, Inc. Lennox Industries Inc. Parker Hannifin Corporation Rheem Manufacturing Company Sporlan Division, Parker Hannifi n Corporation Tempstar Uline White-Rodgers Division, Emerson Climate Technologies