Heating, Ventilation, Air Conditioning & Refrigeration Residential Servicing Certificate

The Heating, Ventilation, Air Conditioning & Refrigeration Residential Servicing Certificate (C1_AIR1) is offered at LSC-North Harris. For more information, please contact the HVAC Department.

Visit the Architecture & Construction cluster page for similar careers.

Program Description

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 and air-conditioning service industry. The essentials of the mechanical and electrical systems of contemporary air-conditioning and heating 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.

First Year Credits

First Semester Credits

Course Number Title Credits
HART 1401 Basic Electricity for HVAC 4
HART 1407 Refrigeration Principles 4
HART 1445 Gas and Electric Heating 4
MAIR 1449 Refrigerators, Freezers, Window Air Conditioners 4

TOTAL First Semester Credits:


Second Semester Credits

Course Number Title Credits
HART 1441 Residential Air Conditioning 4
HART 2436 Air Conditioning Troubleshooting 4
HART 2445 Residential Air Conditioning Systems Design 4
HART 2449 Heat Pumps 4

TOTAL Second Semester Credits:


Third Semester Credits

Course Number Title Credits
HART 2431 Advanced Electricity 4
HART1 2380 Cooperative Education - Heating, Air Conditioning and Refrigeration OR 3-4
HART1 1491 Special Topics in Heating, Air Conditioning, and Refrigeration Technologies/Technician  

TOTAL Third Semester Credits:


Total Credits

TOTAL Credits for
HVAC Residential Servicing Certificate:



  1. Capstone course is HART 2380 or HART 1491 It is strongly suggested to take one of the following professional exams: ARI/GAMA: Competency Exam in Residential Air Conditioning Service; ICE: Certification in Residential and Light Commercial Air Conditioning Service; or Technician Certification Exam.