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In this 35-minute video presentation, well-known author and instructor Jim Johnson shows appliance and HVACR technicians what they need to know about the EPA Section 608 Universal Refrigerant Recovery Certification Exam.
Copper tube and fittings are core components of most air conditioning and refrigeration systems. With newer refrigerants operating at pressures more than 50% above R22 and R404A, contractors and engineers alike should understand the real science behind how copper piping is designed to meet the demands of modern HVACR applications. Read More
With more than 500 pages of extensive information on such important topics as refrigeration systems, piping, ductwork, motors, compressors, fans, pumps and more, this "answer book" is one of the most complete HVAC/R professional references available.
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