HVAC Pneumatic

I.     Course Prefix/Number: AHR 205

       Course Name: HVAC Pneumatic

       Credits: 4 (3 lecture; 3 lab)

II.    Prerequisite

AHR 104 or consent of department chair.

III.   Course (Catalog) Description

Course covers variety of control methods used to maintain comfort systems automatically. Fo-cus is on pneumatic control systems. Content includes terminology used in commercial air con-ditioning systems, elementary controls.   Fee $30

IV.   Learning Objectives

Students will learn the pneumatic control systems used on commercial HVAC systems and func-tions of various pneumatic controls.

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


1    HVAC Systems Air Handlers, Fans, Cooling Eqpt.
2    Definitions of Pneumatic Terms and Fittings Air Compres¬sors, Filters, Dryers, P.R.V.'s
3    Thermostats Single, 2 Pipe, Bleed, Direct/Reverse Acting, Day/Night, Win-ter/Summer
4    Thermostats-Humidistats-sensors
5    Controllers-Receiver Controller Direct Acting-Reverse Acting
6    Relays Selector, Diverting, Reversing, Averaging E.P/P.E.
7    Actuators-Motors-Operators-Dampers & Valves.
8    Humidification and control.
      Introduction-control application.
10    Control Applications
      Economizer Control, Fixed Quantity, Summer-Winter changeover, Day-Night Set-back.
11    Cooling & Dehumidification.
12    Class Tour - To be Announced
13    Terminal Unit Control applications
      Temperature control accessories.
14    Piping Systems
      Control Diagrams-Sequence of Operation
15    Maintenance of control systems

VII.  Methods of Instruction

Lectures, films, class discussions; a mixture of classroom exercises, and supervised hand-on ex-perience in laboratory.
Course may be taught as face-to-face, hybrid or online course.

VIII. Course Practices Required

A.    All laboratory safety rules must be followed by students.
B.    No more than six (6) absences will be allowed.  Anymore will result in a failing grade. (Three absences lowers one letter grade.)
C.    All quizzes and exams must be completed.   
D.    Frequent tardiness will result in an absence.
E.    Each student must participate in shop practices.
F.    Do not leave the class for the evening without notifying your instructor.

IX.   Instructional Materials

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

Text:    Control Systems for Heating, Ventilating, and Air Conditioning by Roger W. Haines.

X.    Methods of Evaluating Student Progress

A.    Weekly quizzes, Mid-term Exam and Final Exam.  Each carries equal weight to derive final grade.
B.    Performance on Lab exercises and laboratory tasks.
C.    "Hands On" performance evaluation, and class participation.

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 www.oakton.edu/title9/.

Resources and support for LGBTQ+ students can be found at www.oakton.edu/lgbtq.