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Help students succeed as professional automotive technicians with Schnubel/Karch’s “Today’s Technician: Automotive Heating & Air Conditioning, Classroom Manual and Shop Manual,” 8th Edition. Reflecting the latest trends, technology, and relevant ASE Education Foundation standards, this innovative approach is the ideal resource for anyone interested in ASE certification or the principles, components, diagnosis, and repair of modern automotive heating and air conditioning systems. Students learn fundamental climate control theory before putting their knowledge into practice through hands-on shop work. Cross-references in each manual link related material, making it easy to connect classroom learning to lab and shop activity. This latest edition includes extensive discussions on the characteristics and service of R-1234yf (HFO-1234yf) systems and the advent of high-voltage systems in vehicle heating, ventilation, and air conditioning.