refrigeration-air-condition-and-heat-pump-technician/references/tasks.md

Tasks & work activities — refrigeration air condition and heat pump technician

Source: O*NET 30.3, occupation 49-9021.00 (Heating, Air Conditioning, and Refrigeration Mechanics and Installers).

Task statements

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

Detailed work activities

• Adjust equipment to ensure optimal performance.
• Advise others on issues related to repairs, installation, or equipment design.
• Braze metal parts or components.
• Confer with customers or users to assess problems.
• Connect electrical components or equipment.
• Cut materials according to specifications or needs.
• Determine operational compliance with regulations or standards.
• Document operational activities.
• Drill holes in parts, equipment, or materials.
• Inspect systems to determine if they are operating properly.
• Install energy-efficient heating, ventilation, or air conditioning (HVAC) equipment.
• Install heating, ventilation, or air conditioning (HVAC) equipment.
• Install home appliances.
• Install machine or equipment replacement parts.
• Interpret blueprints, specifications, or diagrams to inform installation, development or operation activities.
• Lay out work according to specifications.
• Maintain repair or maintenance records.
• Measure distances or dimensions.
• Operate cranes, hoists, or other moving or lifting equipment.
• Order materials, supplies, or equipment.
• Repair worn, damaged, or defective mechanical parts.
• Replace worn, damaged, or defective mechanical parts.
• Schedule repair, installation or maintenance activities.
• Service heating, ventilation or air-conditioning (HVAC) systems or components.
• Supervise employees.
• Test electrical circuits or components for proper functioning.
• Test mechanical systems to ensure proper functioning.
• Train others in operational procedures.
• Travel to work sites to perform installation, repair or maintenance work.