Refrigeration and air conditioning mechanics install and service residential, commercial, industrial and institutional heating, ventilation, air conditioning and refrigeration units and systems. Their duties include laying out reference points for installation, assembling and installing components, installing wiring to connect components to an electric power supply and calibrating related controls. They also measure, cut, bend, thread and connect pipe to functional components and utilities.
Refrigeration and air conditioning mechanics maintain systems by testing components, brazing or soldering parts to repair defective joints, adjusting and replacing worn or defective components and reassembling repaired components and systems. They also test and recharge these systems.
People in this trade may be employed by refrigeration and air conditioning contractors, property owners and institutional and public sector employers or may be self‑employed. They work on a variety of projects in the residential, commercial, industrial and institutional sectors, including office buildings, restaurants, food processing plants, ice arenas, computer facilities, supermarkets and hospitals.
Refrigeration and air conditioning mechanics may work on refrigerated trucks, automotive air conditioning systems, box cars, appliances and ships. In addition to their regular duties, some mechanics may also be required to prepare work estimates and plan systems for clients.
Refrigeration and air conditioning mechanics work in various locations such as rooftops, mechanical rooms and computer rooms. The work may be performed indoors or outdoors year round and may require extensive traveling. The work may also be performed independently. Inherent risks in this trade include working at heights, in confined spaces, and working with compressed gases, utilities and hazardous chemicals.
Key attributes for people entering this trade are good customer service, writing and communication skills, and an eye for detail. Good coordination and manual dexterity are also important, as are good mechanical and mathematical skills. Good physical condition and the strength to lift heavy components are also valuable. Much of the work is performed alone.
This National Occupational Analysis recognizes similarities and overlaps with the work of steamfitters/pipefitters, plumbers, gasfitters, sheet metal workers, industrial mechanics (millwrights) and electricians.
With experience, refrigeration and air conditioning mechanics may act as mentors and trainers of apprentices in the trade. They may also become specialized in one area of the trade, advance to supervisory positions or become instructors.
For more information, see Red Seal Trades – Refrigeration and Air Conditioning Mechanic
