Mark Schnubel is an associate professor and coordinator of the automotive technician and automotive management programs at Naugatuck Valley Community College in Waterbury, Connecticut. An ASE-Certified Master Automotive Technician, he has decades of experience in the automotive services industry and also holds a master’s degree in education. In addition to his activities as an author and educator, Schnubel has served as an adviser to the U.S. Department of Education on academic preparation for 12th graders planning to enter job training programs after graduation.

• 1. Heating and Air Conditioning -- History and the Environment.2. Temperature and Pressure Fundamentals.3. Electricity and Electronic Fundamentals.4. Engine Cooling and Comfort Heating Systems.5. Air-Conditioning System Operating Principles.6. Refrigerant System Components.7. Refrigerant System Servicing and Testing.8. Diagnosis of the Refrigeration System.9. Compressors and Clutches.10. Case and Duct Systems.11. System Controls.12. Retrofit and Future Trends (R-12 to R-134a).

Mark Schnubel is an associate professor and coordinator of the automotive technician and automotive management programs at Naugatuck Valley Community College in Waterbury, Connecticut. An ASE-Certified Master Automotive Technician, he has decades of experience in the automotive services industry and also holds a master’s degree in education. In addition to his activities as an author and educator, Schnubel has served as an adviser to the U.S. Department of Education on academic preparation for 12th graders planning to enter job training programs after graduation.

• 1. Heating and Air Conditioning -- History and the Environment.2. Temperature and Pressure Fundamentals.3. Electricity and Electronic Fundamentals.4. Engine Cooling and Comfort Heating Systems.5. Air-Conditioning System Operating Principles.6. Refrigerant System Components.7. Refrigerant System Servicing and Testing.8. Diagnosis of the Refrigeration System.9. Compressors and Clutches.10. Case and Duct Systems.11. System Controls.12. Retrofit and Future Trends (R-12 to R-134a).

Mark Schnubel is an associate professor and coordinator of the automotive technician and automotive management programs at Naugatuck Valley Community College in Waterbury, Connecticut. An ASE-Certified Master Automotive Technician, he has decades of experience in the automotive services industry and also holds a master’s degree in education. In addition to his activities as an author and educator, Schnubel has served as an adviser to the U.S. Department of Education on academic preparation for 12th graders planning to enter job training programs after graduation.

• 1. Heating and Air Conditioning -- History and the Environment.2. Temperature and Pressure Fundamentals.3. Electricity and Electronic Fundamentals.4. Engine Cooling and Comfort Heating Systems.5. Air-Conditioning System Operating Principles.6. Refrigerant System Components.7. Refrigerant System Servicing and Testing.8. Diagnosis of the Refrigeration System.9. Compressors and Clutches.10. Case and Duct Systems.11. System Controls.12. Retrofit and Future Trends (R-12 to R-134a).