Heating and Air Conditioning Mechanics

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

Job Task

• Obtain and maintain required certification(s).
• Comply with all applicable standards, policies, and procedures, including safety procedures and the maintenance of a clean work area.
• Repair or replace defective equipment, components, or wiring.
• Test electrical circuits and components for continuity, using electrical test equipment.
• Reassemble and test equipment following repairs.
• Inspect and test system to verify system compliance with plans and specifications and to detect and locate malfunctions.
• Discuss heating-cooling system malfunctions with users to isolate problems or to verify that malfunctions have been corrected.
• Record and report all faults, deficiencies, and other unusual occurrences, as well as the time and materials expended on work orders.
• Test pipe or tubing joints and connections for leaks, using pressure gauge or soap-and-water solution.
• Adjust system controls to setting recommended by manufacturer to balance system, using hand tools.
• Recommend, develop, and perform preventive and general maintenance procedures such as cleaning, power-washing and vacuuming equipment, oiling parts, and changing filters.
• Lay out and connect electrical wiring between controls and equipment according to wiring diagram, using electrician's hand tools.
• Install auxiliary components to heating-cooling equipment, such as expansion and discharge valves, air ducts, pipes, blowers, dampers, flues and stokers, following blueprints.
• Assist with other work in coordination with repair and maintenance teams.
• Install, connect, and adjust thermostats, humidistats and timers, using hand tools.
• Generate work orders that address deficiencies in need of correction.
• Join pipes or tubing to equipment and to fuel, water, or refrigerant source, to form complete circuit.
• Assemble, position and mount heating or cooling equipment, following blueprints.
• Study blueprints, design specifications, and manufacturers recommendations to ascertain the configuration of heating or cooling equipment components and to ensure the proper installation of components.
• Cut and drill holes in floors, walls, and roof to install equipment, using power saws and drills.
• Wrap pipes in insulation, securing it in place with cement or wire bands.
• Measure, cut, thread, and bend pipe or tubing, using pipefitter's tools.
• Fabricate, assemble and install duct work and chassis parts, using portable metal-working tools and welding equipment.

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