Jun 25, 2024  
College Catalog 2021-2022 
College Catalog 2021-2022 [ARCHIVED CATALOG]

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AUTO 1420 - Automotive Air Conditioning Theory & Service

Credit Hours: 3.00

Prerequisites: AUTO 1000  and AUTO 1040 

This course covers the theory of automotive heating, ventilation, air conditioning (HVAC) and its operation to maintain passenger comfort. Students will gain experience in the utilization of equipment necessary for on-car recovery, evacuation and recharging of automotive air conditioning systems.

Billable Contact Hours: 4

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Outcome 1: Upon completion of this course, students will be able to visually inspect and identify A/C components.

Objectives: The student will:

  1. Differentiate between high and low side.
  2. Determine the location of service ports.
  3. Identify the separation between high and low sides.
  4. Identify components and differentiate between TXV and CCOT systems

Outcome 2: Upon completion of this course, students will be able to illustrate the properties of A/C refrigerant.

Objectives: The student will:

  1. Restate the law of heat transfer and purpose within A/C system.
  2. Express proficiency in safety procedures and Personal Protection Equipment.

Outcome 3: Upon completion of this course, students will be able to recharge and A/C system.

Objectives: The student will:

  1. Employ correct recovery, evacuation and recharging techniques.
  2. Identify suitable storage and recovery containers.
  3. Illustrate proficiency in gauge reading and diagnosis.

Outcome 4: Upon completion of this course, students will be able to check for leaks in R-12 and R-134A systems.

Objectives: The student will:

  1. Determine the correct leak detection equipment.
  2. Isolate leak and perform correct repair techniques.

• Communication: The graduate can communicate effectively for the intended purpose and audience.
• Critical Thinking: The graduate can make informed decisions after analyzing information or evidence related to the issue.
• Global Literacy: The graduate can analyze human behavior or experiences through cultural, social, political, or economic perspectives.
• Information Literacy: The graduate can responsibly use information gathered from a variety of formats in order to complete a task.
• Quantitative Reasoning: The graduate can apply quantitative methods or evidence to solve problems or make judgments.
• Scientific Literacy: The graduate can produce or interpret scientific information presented in a variety of formats.

CDO marked YES apply to this course:
Critical Thinking: YES

  1. Introduction to A/C fundamentals
    1. Nomenclature
    2. Safety procedures
    3. Physics of heating and cooling
  2. Pressure, temperature relationships
    1. Systematic understanding of A/C cycle
    2. High side - low side
    3. Environmental impact of R-12 and R-134A
  3. Lab experiences on actual or non-working systems and components
    1. Demonstrations
    2. Diagnosis
    3. Leak testing
    4. Manifold pressure gauge hook up
    5. Seal and bearing service
    6. Physically identify location of components for both TXV and CCOT systems
  4. Servicing procedures
    1. Evacuation/charging
    2. Leak testing
    3. Pressure readings
  5. Air conditioning electrical/vacuum controls
    1. Instrument cluster control
    2. Schematic diagrams
    3. Diagnostics
  6. System performance lab experience
    1. System performance
    2. Repair procedures

Primary Faculty
Prater, Daniel
Secondary Faculty

Associate Dean
Pawlowski, Timothy
Hutchison, Donald

Official Course Syllabus - Macomb Community College, 14500 E 12 Mile Road, Warren, MI 48088

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