Chapter 19 Installation and Troubleshooting of Domestic Refrigerators and Freezers
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Goodheart-Willcox Publisher
HVAC Excellence and NATE (North American Technician Excellence) are two organizations offering professional certifi cation for
HVACR technicians. Requirements for professional certifi cation vary, but generally require some work experience and successful
performance on a certifi cation exam. By achieving professional certifi cation, you are able to show your knowledge and skills to
your employer or potential employers.