Automotive Heating & Air Conditioning

I.     Course Prefix/Number: ATA 207

       Course Name: Automotive Heating & Air Conditioning

       Credits: 4 (4 lecture; 0 lab)

II.    Prerequisite

ATA 206 and consent of department chair.

III.   Course (Catalog) Description

Course teaches basic principles of automotive heating and air conditioning. Focus is on the diagnosis, servicing, and replacement of both heating and air conditioning system components.

IV.   Learning Objectives

  • Explain the purpose of the heating, ventilation, and air conditioning system in the automobile.
  • Define how temperature and humidity affect the vehicles comfort zone.
  • Describe the three states of matter and the effect that heat has on them
  • Give examples of  the three types of heat movement
  • Explain the affects refrigerant has on the atmosphere
  • Name the components of the a/c system
  • Illustrate the routing and different stages of the refrigerant as it passes through the a/c system
  • Demonstrate how to connect a refrigerant gauge set, recover refrigerant, evacuate, recharge the a/c system manually and by the use of the a/c refrigerant station.
  • Name the components that make up the heating system
  • Perform removal and replacement of components in the air management system

V.    Academic Integrity and Student Conduct

Students and employees at Oakton Community College are required to demonstrate academic integrity and follow Oakton's Code of Academic Conduct. This code prohibits:

• cheating,
• plagiarism (turning in work not written by you, or lacking proper citation),
• falsification and fabrication (lying or distorting the truth),
• helping others to cheat,
• unauthorized changes on official documents,
• pretending to be someone else or having someone else pretend to be you,
• making or accepting bribes, special favors, or threats, and
• any other behavior that violates academic integrity.

There are serious consequences to violations of the academic integrity policy. Oakton's policies and procedures provide students a fair hearing if a complaint is made against you. If you are found to have violated the policy, the minimum penalty is failure on the assignment and, a disciplinary record will be established and kept on file in the office of the Vice President for Student Affairs for a period of 3 years.

Please review the Code of Academic Conduct and the Code of Student Conduct, both located online at

VI.   Sequence of Topics

  • Environmental and Hazardous Materials
  • Heating and Air-Conditioning Principles
  • The Refrigeration Cycle
  • Air-Conditioning Compressors and Service
  • Refrigerants and Refrigerant Oils
  • A/C System Components, Operation, and Service
  • Air Management System
  • HVAC Electricity and Electronics
  • Cooling System Operation and Diagnosis
  • Heating System Operation and Diagnosis
  • Automatic HVAC Control Circuits
  • Refrigerant Recovery, Recycling, and Recharging
  • A/C System Diagnosis and Repair

VII.  Methods of Instruction

There will be lectures and audiovisual presentations dealing with the functions of automotive heating and air conditioning systems and components. There will also be demonstrations and audiovisual presentations dealing with the repair and diagnostic procedures for automotive HVAC systems and components. Class discussions based on field experience, and best demonstrated industry practices. Individual and small group instruction on component disassembly, and reassembly procedures. Along with training in the use of automotive electrical test equipment.

Course may be taught as face-to-face, hybrid or online course.

VIII. Course Practices Required

Course may be taught as face-to-face.

Reading: The student will be responsible to read hand outs and required assignments from the textbook and instructional materials before scheduled class discussion.

Writing: The student should maintain a comprehensive notebook of lecture and lab topics for reference during class and discussions.

Homework: The student will be responsible for the completion and submitting of homework assignments in a timely manner. Homework will be accepted only on the day assigned or by making arrangements with the instructor for students who are absent on that class day.

IX.   Instructional Materials

Note: Current textbook information for each course and section is available on Oakton's Schedule of Classes.

At times the instructor will supply handouts and additional training materials to the students. Manufacture specifications, shop manual references and procedures will be looked up by the students with the use of computer based Mitchell OnDemand, and the use of the internet. The students will supply his/her course textbook, paper, and writing implements.

X.    Methods of Evaluating Student Progress

Students will be evaluated on class participation, tests/quizzes, homework, lab participation (hands on work), lab sheets, and attendance.


Homework* 10%
Quizzes 10%
Attendance** 10%
Mid-term Test 20%
Final Test 20%
Lab 30%

* Homework: Late homework will count only 50%.

** Attendance: Student attendance is critical for satisfactory completion of course work. Each unexcused absence will reduce your grade by 2% with a maximum of 5 unexcused absences. Three unexcused tardiness equals one day missed. If needed in certain situations, the student will need to bring in proof of absence.

90 – 100 A
80 – 89 B
70 – 79 C
60 – 69 D
0 – 59 F

Missed lab assignments maybe made up if there is time allotted and with some form of proof why the student was absent.

XI.   Other Course Information

If you have a documented learning, psychological, or physical disability you may be entitled to reasonable academic accommodations or services. To request accommodations or services, contact the Access and Disability Resource Center at the Des Plaines or Skokie campus. All students are expected to fulfill essential course requirements. The College will not waive any essential skill or requirement of a course or degree program.

Oakton Community College is committed to maintaining a campus environment emphasizing the dignity and worth of all members of the community, and complies with all federal and state Title IX requirements.

Resources and support for
  • pregnancy-related and parenting accommodations; and
  • victims of sexual misconduct
can be found at

Resources and support for LGBTQ+ students can be found at

Electronic video and/or audio recording is not permitted during class unless the student obtains written permission from the instructor. In cases where recordings are allowed, such content is restricted to personal use only. Any distribution of such recordings is strictly prohibited. Personal use is defined as use by an individual student for the purpose of studying or completing course assignments.

For students who have been approved for audio and/or video recording of lectures and other classroom activities as a reasonable accommodation by Oakton’s Access Disabilities Resource Center (ADRC), applicable federal law requires instructors to permit those recordings. Such recordings are also limited to personal use. Any distribution of such recordings is strictly prohibited.

Violation of this policy will result in disciplinary action through the Code of Student Conduct.