AUT 142 - Automotive Heating, Ventilation, and Air Conditioning

1. Demonstrate understanding of air conditioning (A/C) theory, components, and operation.
2. Perform reclaim/evacuate/recharge procedures using an air conditioning (A/C) reclaimer.
3. Perform A/C condenser and compressor R&R and flush the system
4. Demonstrate understanding of vehicle heating systems and perform diagnostics
5. Demonstrate understanding of vehicle A/C controls and blend doors, and perform diagnostics
6. Understand A/C performance testing and perform an A/C performance test
7. Troubleshoot and repair common A/C system failures
8. Demonstrate knowledge of proper automotive refrigerant handling and disposal and obtain an EPA 609 Handlers Certification

1. HVAC Fundamentals
   A.  Thermodynamics and Energy Transfer
   B.  States of Matter
   C.  A/C System Operation
   D.  Design and Function of A/C System Components
2. Automotive HVAC Refrigerant and Recycling
   A.  Automotive Refrigerants
   B.  Refrigerant Oils
   C.  System Service
   D. Refrigerant Recovery and Evacuation
3. Compressor/Condenser R&R and System Flushing
   A.  Types of A/C Compressors
   B.  Pressure Switches and Sensors
   C. Condenser Designs
   D.  Compressor and Condenser R&R
   E.  System Flushing
4. Heating Systems
   A.  Purpose of Vehicle Heating
   B.  Styles of Heating Systems
   C.  Heating System Inspection
   D.  Heating System Diagnosis
5. Electronic Controls and Blend Doors Diagnosis
   A.  Heater Controls
   B.  Blend and Recirculation Doors
   C.  Blower Motor and Resistor
   D.  HVAC housing and Ducts
   E.  A/C Control Head (Digital/ Analog)
   F.  Dual Zone A/C
   G.  Window Defogger
6. A/C System Performance Testing
   A. Humidity
   B. System Heat Load
   C. Performance Testing
   D. Reading Pressure Charts
   E. Diagnostics Overview
7. HVAC Diagnosis
   A.  Low Refrigerant Charge Diagnosis
   B.  Leak Detection
   C.  Condenser Diagnosis
   C. Compressor Diagnosis
   D.  Pulling Codes and Sensor Diagnosis
8. EPA 609 Handlers License
   A. History of refrigerant regulation
   B. Effect of refrigerant on the environment
   C. Proper refrigerant handling and storage
   D. Refrigerant safety concerns
   E. EPA 609 handlers license test
9. Safety and Hazardous Materials Handling
   1. Safe work habits and proper lifting/carrying of materials
   2. Proper clothing and protective equipment 
   3. Material Safety Data Sheets (MSDS)
   4. Occupational Safety Health Administration (OSHA) regulations
   5. Fire extinguishers, exits and evacuation procedures