Associate of Science in Environmental Control Technology (HVAC) (AS)

Division: Industry & Technology

This degree prepares students for entry-level employment in the field of Environmental Control Technology through the study of air conditioning, heating and refrigeration. Students will acquire skills in air conditioning, heating and refrigeration troubleshooting and repair.

Program Outcomes

  • Read and interpret an electrical schematic.
  • Troubleshoot a basic heating and air conditioning system.
  • Troubleshoot a basic heating system.

Career Opportunities

Upon successful completion of this degree, students will be prepared for careers or employment in the following fields: HVAC/R technician, sales, service and repair.


This degree is not designed for transfer; however, the courses included in this degree may be transferable and apply to other degrees designed for transfer.

 Program Requirements

College of the Sequoias' Associate Degree General Education (COS-GE)
ECT 242Air Conditioning Sheet Metal4
ECT 280Electrical Theory and Applications of Controls for HVAC4
ECT 281Basic Air Conditioning12
ECT 282Advanced Air Conditioning/Refrigeration Commercial/Domestic12
Select additional degree applicable courses numbered 1-299 to achieve 60 units

The Associate Degree requirements include completion of the:

  1. Required major courses and restricted elective courses with a "C" or better grade in each course (required and restricted elective courses may be substituted with the approval of the Division Chair),
  2. General Education requirements,
  3. Subject requirements including PE, Health & Wellness, and American Institutions, and
  4. A minimum of 60 units of degree applicable courses numbered 1-299, at least 12 of which must be taken in residence at College of the Sequoias, with a "C" (2.0) average (see Associate Degree Requirements for additional details).