Refrigeration Fundamentals For HVACR Technicians

Duration: 90 minutes



In this video program, well-known author and instructor Jim Johnson eliminates the mysteries behind the concepts of vapor compressor refrigeration systems. The program begins with a brief overview of thermodynamics, sensible and latent heat concepts, and the basic components of a refrigeration system before taking a nuts-and-bolts approach to understanding and servicing residential and light commercial equipment. 

Using cutaways of components and refrigeration systems to demonstrate, Jim explains and shows how refrigeration systems applied to comfort cooling systems, as well as those found in other systems such as walk-in coolers and freezers, reach-in’s, and other applications.

The accompanying resource material includes an interactive resource guide, quiz questions, additional information on EPA refrigerant recovery certification, sample questions and an answer key for EPA certification and additional temperature/pressure charts.

Videos contain closed captioning that can be turned on/off at the learner's convenience.

End of course review questions along with certificate of completion.


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About Jim Johnson

Jim Johnson has been a full-time technician, as well as a full-time trade school and community college instructor and administrator, working in and around the refrigeration, HVACR, appliance, and facility maintenance fields since 1973. He has facilitated hundreds of training seminars, workshops and classes in the HVACR electrical and refrigeration areas alone, as well as many other workshops in other technical and non-technical areas.

His background includes a satellite training network for HVACR and appliance technicians, and the development and presentation of more than 75 video training programs. He has authored five textbooks and 10 technician handbooks. He has been a columnist for trade magazines for more than 20 years, including Indoor Comfort News, RSES Journal, ACHR News, ACHR News Extra Edition, HVACR Today, and Marcone World Magazine, providing monthly troubleshooting features and more than 500 feature articles. He is a member of RSES, Certified as a Residential and Light Commercial Air Balancing and Diagnostic Technician, and is certified in heat pumps. He also holds multiple certifications in combustion analysis and carbon monoxide safety.

He is a registered proctor for NATE exams, and his workshops, HVAC training videos, and e-book CD’s not only provide a simplified approach to learning about troubleshooting and servicing heating and air conditioning equipment, they also serve as an effective preparation for NATE certification exams.


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