Trenholm State Community College

Air Conditioning & Refrigeration Technology


Air Conditioning & Refrigeration


The first step to be accepted into this program is to complete the college application. Apply Now!


Heating, air conditioning, and refrigeration mechanics and installers, often called HVACR technicians, work on heating, ventilation, cooling, and refrigeration systems that control the temperature and air quality in buildings.

Heating, air conditioning, and refrigeration mechanics and installers typically do the following:

  • Install, clean, and maintain HVACR systems
  • Install electrical components and wiring
  • Inspect and test HVACR systems and components
  • Discuss system malfunctions with customers
  • Repair or replace worn or defective parts
  • Recommend maintenance to improve system performance
  • Keep records of work performed

Heating and air conditioning systems control the temperature, humidity, and overall air quality in homes, businesses, and other buildings. By providing a climate-controlled environment, refrigeration systems make it possible to store and transport food, medicine, and other perishable items.

Some HVACR technicians specialize in one or more specific aspects of HVACR, such as radiant heating systems, solar panels, testing and balancing, or commercial refrigeration. When installing or repairing air conditioning and refrigeration systems, technicians must follow government regulations regarding the conservation, recovery, and recycling of refrigerants. The regulations include those concerning the proper handling and disposal of fluids and pressurized gases.


The Air Conditioning and Refrigeration program at Trenholm State Community College is designed to promote and cultivate a high-quality education of the principles involved in the service, maintenance, and installation of HVACR systems.

It is envisioned that through the various courses, students will gain both technical knowledge as well as practical hands-on experience that will aid them to transition into qualified technicians, ready to enter the workforce in the HVACR industry.


Awards Available

Associates Degree

  • Associate of Applied Science—A/C & Refrigeration (69 Semester Hours)
  • Associate of Applied Science—A/C & Refrigeration – Refrigeration Concentration (60 Semester Hours)


  • A/C & Refrigeration – Refrigeration Concentration (47 Semester Hours)

Short Term Certificate

  • Advanced A/C & Refrigeration (28 Semester Hours)

Curriculum Requirements For Associate Degree

General Education Core Requirements
Area Course Hours Required Recommended Course(s)
I Written Composition 3 ENG 101
II Humanities and Fine Arts 3 MUS 101
III Natural Sciences and Mathematics 6-7 MTH 116 & PHS 112
IV History, Social, and Behavioral Sciences 3 PSY 200
Area V
Course Hours
Ori 101 Orientation to College 1
ACR 111 Principles of Refrigeration 3
ACR 112 HVAC Service Procedures 3
ACR 113 Refrigeration Piping Practices 3
ACR 121 Principles of Electricity for HVACR 3
ACR 122 HVACR Electrical Circuits 3
ACR 123 HVACR Electrical Components 3
ACR 125 Fundamentals of Gas & Electrical Heating Systems 6
ACR 128 Heat Load Calculations 3
ACR 132 Residential Air Conditioning 3
ACR 147 Refrigerant Transition and Recovery 3
ACR 152 Heat Pump Systems 6
ACR 193 Co-op 1
ACR 205 System Sizing and Air Distribution 3
ACR 209 Commercial A/C Systems 3
ACR 210 Troubleshooting HVACR Systems 3
Elective   3

Sample Degree Pathway

Program Details: View more information in the catalog.

Program Brochure

Scan or click the QR code to view.

Air Conditioning & Refrigeration Brochure


Potential Salary Range

The average full-time annual wage for an air conditioning and refrigeration technician is $47,610. These technicians enjoy a variety of employer-sponsored benefits such as health insurance and pension plans. Some employers may also pay for work-related training and provide uniforms, company vans, and tools. Source: Bureau of Labor and Statistics Occupational Outlook Handbook, 2018 Survey


Program Contact


Jaime Junco
Program Coordinator

Heath Flowers

Brian Lewis


Patterson Site
3920 Troy Hwy,
Montgomery, AL 36116
Detailed Directions

History of

For half a century, thousands of students have charted their path to success at Trenholm State Community College. From the 1960s to today, we have been part of the fabric of Montgomery and the River Region, growing to include diverse programs of study, multiple campuses, and online learning. Now, we celebrate the present and move forward with a renewed dedication to our community and the success of our students. We invite you to join us.

Contact Trenholm State

1-866-753-4544 334-420-4200

Trenholm Campus:
1225 Air Base Blvd
Montgomery, Alabama 36108
Directions »
Mailing Address:
Post Office Box 10048
Montgomery, Alabama 36108