A2L REFRIGERANT CHARGING and AIR CONDITIONING SERVICE for HVAC/R TECHNICIANS: A Practical Textbook R-32, R-454B, Recovery, Superheat, Subcooling, System Diagnosis, EPA 608 Review

MASTER MODERN A2L REFRIGERANT SERVICE WITH CONFIDENCE, SAFETY, AND FIELD-READY SKILLThe HVAC/R industry is changing, and technicians must be ready for the new generation of refrigerants, service procedures, and safety expectations. Old pressure-only habits are no longer enough. Modern air conditioning service requires accurate charging, proper recovery, safe A2L handling, strong diagnostic thinking, and a clear understanding of today's refrigerant systems.A2L Refrigerant Charging and Air Conditioning Service for HVAC/R Technicians is a practical, professional textbook designed for students, apprentices, service technicians, instructors, and HVAC/R professionals who want to build real confidence with R-32, R-454B, R-410A, recovery, superheat, subcooling, system diagnosis, and EPA 608 review.This textbook explains modern refrigerant service in a clear, field-focused way, helping readers move beyond memorized theory into practical decision-making used on real service calls. Inside this book, you will learn how to: - Understand A2L refrigerants and the shift toward modern low-GWP systems - Service R-32, R-454B, R-410A, and legacy refrigerant systems with better accuracy - Apply safe refrigerant handling, recovery, evacuation, and charging procedures - Measure and interpret superheat and subcooling correctly - Diagnose low charge, overcharge, restricted airflow, dirty condensers, restrictions, and system performance problems - Avoid common charging mistakes that lead to callbacks and equipment damage - Strengthen your EPA 608 review with practical refrigerant safety and service knowledge - Build a professional service mindset for modern HVAC/R fieldworkWhether you are preparing for certification review, improving your field service skills, training as an HVAC/R technician, or updating your knowledge for A2L refrigerant systems, this textbook gives you a clear and practical foundation for today's air conditioning service demands. Get your copy today and develop the refrigerant charging, troubleshooting, and safety knowledge every modern HVAC/R technician needs.