Heating, Air Conditioning, and Refrigeration Mechanics and Installers

Tasks

Core Tasks Include:

• Test electrical circuits or components for continuity, using electrical test equipment.
• Repair or replace defective equipment, components, or wiring.
• Discuss heating or cooling system malfunctions with users to isolate problems or to verify that repairs corrected malfunctions.
• Connect heating or air conditioning equipment to fuel, water, or refrigerant source to form complete circuit.
• Install, connect, or adjust thermostats, humidistats, or timers.
• Comply with all applicable standards, policies, or procedures, such as safety procedures or the maintenance of a clean work area.
• 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.
• Install auxiliary components to heating or cooling equipment, such as expansion or discharge valves, air ducts, pipes, blowers, dampers, flues, or stokers.
• Braze or solder parts to repair defective joints and leaks.
• Lay out and connect electrical wiring between controls and equipment, according to wiring diagrams, using electrician's hand tools.
• Inspect and test systems to verify system compliance with plans and specifications or to detect and locate malfunctions.
• Record and report time, materials, faults, deficiencies, or other unusual occurrences on work orders.
• Perform mechanical overhauls and refrigerant reclaiming.
• Adjust system controls to settings recommended by manufacturer to balance system.
• Install expansion and control valves, using acetylene torches and wrenches.
• Install dehumidifiers or related equipment for spaces that require cool, dry air to operate efficiently, such as computer rooms.
• Recommend, develop, or perform preventive or general maintenance procedures, such as cleaning, power-washing, or vacuuming equipment, oiling parts, or changing filters.
• Cut or drill holes in floors, walls, or roof to install equipment, using power saws or drills.
• Mount compressor, condenser, and other components in specified locations on frames, using hand tools and acetylene welding equipment.
• Measure, cut, thread, or bend pipe or tubing, using pipe fitter's tools.
• Keep records of repairs and replacements made and causes of malfunctions.
• Estimate, order, pick up, deliver, and install materials and supplies needed to maintain equipment in good working condition.
• Schedule work with customers and initiate work orders, house requisitions, and orders from stock.
• Supervise and instruct assistants.
• Lay out reference points for installation of structural and functional components, using measuring instruments.
• Lift and align components into position, using hoist or block and tackle.
• 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.

Supplemental Tasks Include:

• Install or repair air purification systems, such as specialized filters or ultraviolet (UV) light purification systems.

Tasks Include:

• Repair or service heating, ventilating, and air conditioning (HVAC) systems to improve efficiency, such as by changing filters, cleaning ducts, and refilling non-toxic refrigerants.
• Test pipes, lines, components, and connections for leaks.

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The data sources for the information displayed here include: O*NET™. (Using onet291)