HVAC Technician Online Courses
Online HVAC Technician Courses

HVAC (Heating, Ventilation, Air-Conditioning) Technicians play an extremely important role in today's society. Heating and air-conditioning systems control the temperature, humidity, and the total air quality in residential, commercial, industrial, and other buildings. Refrigeration systems make it possible to store and transport food, medicine, and other perishable items. Heating, air-conditioning, and refrigeration mechanics and installers-also called technicians-install, maintain, and repair such systems. Because heating, ventilation, air-conditioning, and refrigeration systems often are referred to as HVACR systems, these workers also may be called HVACR technicians.


Heating, air-conditioning, and refrigeration systems consist of many mechanical, electrical, and electronic components, such as motors, compressors, pumps, fans, ducts, pipes, thermostats, and switches. In central forced air heating systems, for example, a furnace heats air, which is then distributed via a system of metal or fiberglass ducts. Technicians must be able to maintain, diagnose, and correct problems throughout the entire system. To do this, they adjust system controls to recommended settings and test the performance of the system using special tools and test equipment.

Technicians often specialize in either installation or maintenance and repair, although they are trained to do both. They also may specialize in doing heating work or air-conditioning or refrigeration work. Some specialize in one type of equipment-for example, hydronics (water-based heating systems), solar panels, or commercial refrigeration. Some technicians also sell service contracts to their clients. Service contracts provide for regular maintenance of the heating and cooling systems and they help to reduce the seasonal fluctuations of this type of work.

Heating, air-conditioning, and refrigeration mechanics and installers work in homes, retail establishments, hospitals, office buildings, and factories-anywhere there is climate-control equipment that needs to be installed, repaired, or serviced. They may be assigned to specific job sites at the beginning of each day or may be dispatched to a variety of locations if they are making service calls.

Technicians may work outside in cold or hot weather or in buildings that are uncomfortable because the air-conditioning or heating equipment is broken. In addition, technicians might work in awkward or cramped positions and sometimes are required to work in high places. Hazards include electrical shock, burns, muscle strains, and other injuries from handling heavy equipment. Appropriate safety equipment is necessary when handling refrigerants because contact can cause skin damage, frostbite, or blindness. Inhalation of refrigerants when working in confined spaces also is a possible hazard.

HVAC stands for Heating, Ventilation and Air Conditioning and is sometimes generally referred to as climate control. HVAC specialists are always in great demand because HVAC systems are essential to modern homes, offices, retail operations, industrial and recreational facilities. Everything from room and water temperature to air and food quality is dependent on HVAC systems working reliably and efficiently. These online career training programs in HVAC can provide you with the knowledge and skills you need to qualify for employment, pass certification exams, and enter apprenticeship programs with HVAC labor unions. (cont.)

Coursework in HVAC Certificate Programs typically includes topics such as:

* System evacuation, refrigerants, and system charging
* Automatic, electronic, and programmable controls
* Commercial refrigeration and heating systems
* Brazing and soldering techniques
* How to install and troubleshoot valves, compressors, water chillers, thermostats and heat pumps
* Electrical connections and electromagnetic controls
* Evaporating and condensing units
* Installing and servicing residential and commercial HVAC appliances

The online Certificate Programs in HVAC offered by our accredited colleges and career training schools can often be completed within several months. Plus, they offer the scheduling flexibility to accommodate your current work and personal responsibilities. Explore the HVAC Certificate Programs below and request more information today. The respective college or university will assist you in making sure that a particular program is the best choice for your educational and career goals.

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