× LoneStarCollegeALERT:

HVAC & Refrigeration AAS Degree

Air conditioning units and ducts.



The heating, ventilation, air conditioning and refrigeration associate of applied science degree prepares the individual for a technical service career in residential or light commercial/industrial environmental systems. The student will study the mechanical and electrical/electronic systems involved in contemporary environmental controls. The academic requirements of the program provide a foundation for continued studies should the student decide to pursue his or her education or training.

The HVAC&R certificate program prepares the individual for basic, entry-level employment in the residential and/or light commercial heating, air-conditioning and refrigeration service industry. The essentials of the mechanical and electrical systems of contemporary air-conditioning, heating and refrigeration systems are addressed throughout the program.

The general education core will transfer to a variety of colleges and universities. Contact a counselor or faculty member at any of the colleges for specific information and to obtain the recommended sequencing of courses.

Printable Program Flyer

Stackable Credentials

Credits earned in the HVAC Occupational Entry Certificate Level I, HVAC & Refrigeration Residential Servicing Certificate Level I, and HVAC & Refrigeration Commercial Servicing Certificate Level I programs may be applied to this degree.

First Year

First Semester Courses 16 Credits
HART 1401 Basic Electricity for HVAC 4
HART 1407 Refrigeration Principles 4
HART 1441 Residential Air Conditioning 4
HART 1445 Gas and Electric Heating 4
Second Semester Courses 15 Credits
HART 2431 Advanced Electricity for HVAC 4
HART 2436 Air Conditioning Troubleshooting 4
HART 2345 Residential Air Conditioning Systems Design 3
HART 2449 Heat Pumps 4

Second Year

First Semester Courses 14 Credits
HART 2334-or-HART 2341 Advanced Air Conditioning Controls-or-Commercial Air Conditioning 3
HART 2442-or-HART 2443 Commercial Refrigeration-or-Industrial Air Conditioning 4
HART 1356 EPA Recovery Certification Preparation 3
HART 1491 Special Topics in Heating, Air Conditioning, and Refrigeration1 4
Second Semester Courses 15 Credits
SOCI 1301 Principles of Sociology 3
ENGL 1301 Composition & Rhetoric I 3
MATH 1314 College Algebra 3
Elective Creative Arts/Language, Philosophy & Culture2 3
Elective Speech3 3
Heating, Ventilation, Air Conditioning & Refrigeration AAS Degree Program Total 60 Credits


  1. Capstone Course. HART 1491 is designed to prepare the student to take one or more of the NATE certification exams.
  2. Choose from AAS Core
  3. Choose a SPCH course from the Communication Component Area in the AA core.

Search for ClassesRegister in myLoneStar

Career Options

Median wage: $41,8161

Representative career titles and job positions for this program plan include:

  • HVAC Technician2
  • HVAC Service Technician2
  • HVAC Mechanic2

Gainful Employment

The U.S. Department of Education requires colleges to disclose a variety of information for any financial aid eligible program that “prepares students for gainful employment in a recognized occupation."


  1. Wage data is based on annual salaries from Bureau of Labor Statistics, U.S. Department of Labor, Occupational Employment Statistics, 2016
  2. Position titles vary by employer and location.


Figuring out how to pay for college is one of the toughest parts of earning a degree but attending LSC is an affordable option for most students. Tuition rates are based on residency and you can get an estimate of your costs by using our LSC Tuition & Fees chart.

Average full-time tuition is $800 per semester.

Financial Aid

Financial aid helps students and their families pay for college. There are several types of financial aid available to LSC students and financial aid packages may include more than one type of award.

Learn More About This Program

  • Should be Empty:
  • Make LSC part of your story.