: All commercial system controls are now consolidated into Chapter 26, while Chapter 9 introduces core refrigeration components earlier to accelerate student understanding. Diagnostic & Troubleshooting Focus
: Extensive coverage of the industry shift toward mildly flammable (A2L) refrigerants and compliance with new federal environmental regulations. Modern Refrigeration and Air Conditioning
is considered the gold standard textbook for HVACR education, having served as a foundational resource for technicians since its first publication in 1933. Now in its 22nd Edition (2025) , the text focuses on bridging the gap between students and professional technicians by blending fundamental theory with advanced service techniques. Key Features of the 22nd Edition : All commercial system controls are now consolidated
: Expanded sections on airborne pathogen mitigation and advanced filtration, a priority following recent global health events. Modern Refrigeration and Air Conditioning