Heating, air conditioning and refrigeration technology degree overview

A heating, air conditioning and refrigeration technology degree teaches students how heating, cooling, ventilation, and refrigeration systems are designed, installed, operated, tested, and maintained. These systems are used in homes, commercial buildings, and industrial facilities to control temperature, airflow, and indoor comfort. Students study heating and cooling principles, electrical systems, refrigeration equipment, system controls, and basic engineering concepts. The program combines classroom instruction with hands-on training in equipment testing, troubleshooting, inspection, maintenance, and technical reporting, preparing graduates to support engineers and other professionals who develop and work with these systems.

This degree may be a good fit for students who enjoy working with technology, solving mechanical problems, and understanding how building systems operate. It is especially suited to those who like hands-on projects, working with tools and equipment, and figuring out how to make heating and cooling systems run more efficiently. Heating, air conditioning and refrigeration technology offers a practical career path for people interested in building systems, mechanical equipment, and the technology that keeps indoor environments comfortable and safe.

Program Options

Heating, air conditioning and refrigeration technology programs are commonly offered at the associate degree, diploma, and certificate levels. Students learn the technical principles behind heating, cooling, ventilation, and refrigeration systems, with hands-on training in equipment installation, operation, testing, inspection, and maintenance. Some programs also introduce system design, technical drawings, and the documentation used by engineering and technical teams.

• Associate of Applied Science (AAS) in Heating, Air Conditioning and Refrigeration Technology: This degree combines classroom instruction with practical training in heating and cooling principles, refrigeration systems, electrical controls, and basic engineering concepts. Students also learn about system design, operational testing, installation, maintenance, and technical reporting.
• Diploma in Heating, Ventilation, Air Conditioning and Refrigeration (HVAC/R): This program focuses on the practical skills needed to install, operate, inspect, and maintain heating, cooling, and refrigeration equipment. Coursework typically covers electrical systems, refrigeration principles, equipment controls, troubleshooting, and safety procedures.
• Certificate in Heating, Ventilation, Air Conditioning and Refrigeration (HVAC/R): This shorter program introduces students to HVAC/R equipment, heating and cooling principles, and basic installation and maintenance procedures. It can provide a foundation for entry-level technical work or further training in the field.

Students in a heating, air conditioning and refrigeration technology program develop the technical skills needed to support the design, installation, testing, operation, and maintenance of heating, cooling, ventilation, and refrigeration systems.

• Heating and Cooling Technology: Students learn the principles behind heating, cooling, and refrigeration systems, including heat transfer and temperature control. They explore how furnaces, air conditioners, heat pumps, and refrigeration equipment operate.
• Basic Engineering Principles: Students learn to apply basic mechanical, electrical, and thermodynamic principles to heating and cooling systems. They use these concepts to understand equipment performance and support technical problem-solving.
• System Design and Technical Drawings: Students learn to read blueprints, wiring diagrams, and technical specifications for HVAC and refrigeration systems. They also develop skills in interpreting system layouts and assisting with equipment selection and design.
• Installation and Operation: Students practice installing heating, cooling, ventilation, and refrigeration equipment and connecting system components. They learn how to start up systems, adjust operating settings, and check that equipment functions properly.

A heating, air conditioning and refrigeration technology degree can prepare graduates for technical careers involving the design, testing, installation, operation, and maintenance of heating, cooling, ventilation, and refrigeration systems.

• HVAC Technician: Installs, maintains, and repairs heating, ventilation, and air conditioning systems in residential, commercial, and industrial buildings. HVAC technicians diagnose equipment problems, replace faulty components, and help systems operate safely and efficiently.
• Refrigeration Technician: Installs and services refrigeration systems used in supermarkets, restaurants, warehouses, and industrial facilities. Refrigeration technicians inspect compressors, refrigerant lines, and electrical controls to maintain proper cooling performance.
• HVAC Engineering Technician: Assists engineers with the design, development, and testing of heating, cooling, and ventilation systems. HVAC engineering technicians interpret technical drawings, collect performance data, and prepare reports on equipment operation.
• Building Automation Technician: Installs, tests, and maintains automated control systems that regulate heating, cooling, and ventilation equipment. Building automation technicians work with sensors, controllers, and computerized systems to improve building comfort and energy efficiency.
• HVAC Test and Balance Technician: Measures and adjusts airflow and system performance in commercial and industrial buildings. These technicians use specialized instruments to help ensure ventilation and air conditioning systems meet design specifications.
• Facilities Maintenance Technician: Maintains mechanical equipment and building systems in offices, hospitals, schools, and other facilities. Facilities maintenance technicians inspect HVAC equipment, perform preventive maintenance, and troubleshoot operating problems.