AUT 231: Automotive Heating and Air Conditioning

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Class Program
Automotive Technology
Credits 6 Lecture Hours 33 Lab Hours 66
This course covers the diagnosis, servicing, and repair of modern vehicle heating and air conditioning systems. Classroom and laboratory lessons provide training and experience using modern refrigeration servicing and recycling equipment necessary to meet environmental regulations. CFC-12 and HFC-134A systems and equipment are utilized and retrofitting following Environmental Protection Agency guidelines is discussed. This course is designed to prepare the student for the ASE/NATEF Heating and Air Conditioning test.

Prerequisites

All First Year Certificate Auto Courses or Instructor Approval.
Quarters Offered
Spring
Course Outcomes

Upon successful completion of the course, students should be able to demonstrate the following knowledge or skills:

  1. Describe the operation of an automotive heating and air conditioning system.
  2. Use and interpret automotive service manuals
  3. Accurately diagnose heating and air conditioning malfunctions using accepted and environmentally sound service procedures.
  4. Perform necessary service and repair of mobile and automobile heating and air conditioning systems.
  5. Receive training and certification in HFC-134A refrigerant recycling and service procedures.
  6. Pass the Automotive Service Excellence (ASE) Test for Automotive Heating and Air Conditioning (A7)
Course Content Outline
  1. Unit 1: Safety, Environmental, and Hazardous Materials
    • Chapter 1. Service Information Tools and Safety
    • Chapter 2. Environmental and Hazardous Materials
  2. Unit 2: Introduction to Automotive HVAC
    • Chapter 3. Heating and Air Conditioning Principles
    • Chapter 4. The Refrigeration Cycle
    • Chapter 5. Air Conditioning Compressors and Service
    • Chapter 6. Refrigerants and Refrigerant Oils
    • Chapter 7. Air Conditioning System Components, Operation, and Service
  3. Unit 3: HVAC Controls
    • Chapter 8. Air Management Systems
    • Chapter 9. HVAC Electricity and Electronics
    • Chapter 12. Automatic Temperature Controls
  4. Unit 4: Operation and Diagnosis
    • Chapter 10. Cooling System Operation and Diagnosis
    • Chapter 11. Heating System Operation and Diagnosis
    • Chapter 15. Air Conditioning System Diagnosis and Repair
    • Chapter 12. Automatic Temperature Control
    • Chapter 13. Hybrid and Electric Vehicle HVAC Systems
    • Chapter 14. Refrigerant Recovery, Recycling, and Recharging