What does a Heating and Air Conditioning Mechanic and Installer do?

Install, service, or repair heating and air conditioning systems in residences or commercial establishments.

Jobs Roles

  • Repair or replace defective equipment, components, or wiring.
  • Test electrical circuits or components for continuity, using electrical test equipment.
  • Inspect and test systems to verify system compliance with plans and specifications or to detect and locate malfunctions.
  • Test pipe or tubing joints or connections for leaks, using pressure gauge or soap-and-water solution.
  • Recommend, develop, or perform preventive or general maintenance procedures, such as cleaning, power-washing, or vacuuming equipment, oiling parts, or changing filters.
  • Lay out and connect electrical wiring between controls and equipment, according to wiring diagrams, using electrician's hand tools.
  • Cut or drill holes in floors, walls, or roof to install equipment, using power saws or drills.
  • Measure, cut, thread, or bend pipe or tubing, using pipe fitter's tools.
  • Fabricate, assemble, or install duct work or chassis parts, using portable metal-working tools or welding equipment.
  • Install and test automatic, programmable, or wireless thermostats in residential or commercial buildings to minimize energy usage for heating or cooling.
  • Install dehumidifiers or related equipment for spaces that require cool, dry air to operate efficiently, such as computer rooms.
  • Install magnetic-centrifugal chillers, compressors, or related equipment to cool air temperatures through the use of recirculating water.
  • Install or repair air purification systems, such as specialized filters or ultraviolet (UV) light purification systems.
  • Install or repair self-contained ground source heat pumps or hybrid ground or air source heat pumps to minimize carbon-based energy consumption and reduce carbon emissions.
  • Install radiator controls for room-level zone control heating of residential or commercial buildings.
  • Repair or service heating, ventilating, and air conditioning (HVAC) systems to improve efficiency, such as by changing filters, cleaning ducts, or refilling non-toxic refrigerants.
  • Discuss heating or cooling system malfunctions with users to isolate problems or to verify that repairs corrected malfunctions.
  • Install, connect, or adjust thermostats, humidistats, or timers.
  • Connect heating or air conditioning equipment to fuel, water, or refrigerant source to form complete circuit.
  • Study blueprints, design specifications, or manufacturers' recommendations to ascertain the configuration of heating or cooling equipment components and to ensure the proper installation of components.
  • Comply with all applicable standards, policies, or procedures, such as safety procedures or the maintenance of a clean work area.
  • Install auxiliary components to heating or cooling equipment, such as expansion or discharge valves, air ducts, pipes, blowers, dampers, flues, or stokers.
  • Record and report time, materials, faults, deficiencies, or other unusual occurrences on work orders.
  • Adjust system controls to settings recommended by manufacturer to balance system.
  • Assemble, position, and mount heating or cooling equipment, following blueprints or manufacturer's specifications.
  • Wrap pipes, securing insulation in place with cement or wire bands.
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