Harper College will be closed on Monday, September 7, in observance of Labor Day.

Program facts ![]()
Get a comprehensive background in air conditioning and refrigeration service with this certificate program. You’ll learn how to perform preventative maintenance, service and repairs on residential and commercial air conditioning and refrigeration systems. The program focuses on practical application, giving you the skills needed to perform system diagnostics and develop troubleshooting techniques.
Complete the 10-course program in our unique HVAC/R Open Lab, a state-of-the-art facility
featuring more than 70 pieces of commercial and residential equipment. The lab is
staffed by expert instructors who are available to assist you six days per week, making
this program
accommodating to your busy schedule.
This 29 credit-hour certificate program is designed to provide students the skill set to perform preventative maintenance, service and repairs on residential and commercial air conditioning and refrigeration systems. Emphasis is placed on practical application to perform system diagnostics and develop troubleshooting techniques.
| Number | Course Title | Credits |
|---|---|---|
| Required | ||
| ELT 110 | Introductory Electronics | 4 |
| ELT 144 | AC and DC Motors | 2 |
| ELT 145 | Variable Frequency Drives | 2 |
| HVA 101 | Refrigeration Fundamentals | 3 |
| HVA 102 | Refrigeration Systems | 3 |
| HVA 105 | Heating and Cooling Controls | 3 |
| HVA 106 | Pneumatic Controls Systems | 3 |
| HVA 107 | Commercial Air Conditioning Systems | 3 |
| HVA 108 | Domestic Refrigeration Appliances | 3 |
| MTH 100 | Applied Math for Technical Careers1 | 3 |
| Total Hours | 29 | |
Students may take MTH 100 or higher.
Students interested in HVAC/R may also be interested in:
For more information about A/C and refrigeration courses at Harper College, contact Admission Outreach at 847.925.6700, or submit a request information form. You can also apply online.