Refrigeration and freezer units provide for the safe preservation of beverages, foods, medicines, and other perishables. Heating and cooling systems, including furnace, air conditioning, and refrigeration units, are complex. Wide usage of these systems creates demand for skilled persons who can install, maintain, and repair the systems. Qualified Air Conditioning and Refrigeration Technicians fill that role. Tasks include blueprint and diagram reading, equipment installation, wiring, machinery lubrication and maintenance, unit and system repair, and connecting ducts, pipes, and other components.
Technicians sometimes design specifications.
The work place environment provides variety. Technicians may work inside and outside, underground, above ground, and on roof tops, in tight areas and in wide open areas, in pleasant weather and in inclement weather. Technicians must be able to climb ladders, withstand heights, and endure extreme temperature differences. They are sometimes required to work with heavy objects. As a rule, technicians should have the ability to lift up to 100 pounds.