Heating & Air Conditioning Installer/Service Technician

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National (OA)

Documents

Individual state requirements may vary. Please contact your local apprenticeship office to ensure this version is suitable to your state’s requirements.

Work Process Schedule

Work Process Content

On the Job Training

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General Trade Orientation

Care and use of tools
Test and measurement devices
Types and sizes of fittings, piping, and tubing
Safety procedures
Equipment records and reports
Environmental safety, CFC handling

Fabrication of Systems Components

Cut, thread, flare, bend, shape piping and tubing
Install fittings
Solder and braze tin fittings and components
Care and use of torches
Silver and soft soldering

System Installation and Connection

Electric supply lines and cables
Electrical connections
Water service lines
Air supply lines
Steam lines
Steam return lines
Steam traps and strainers
Pressure reduction, expansion, evaporator, stop valves
Suction and discharge lines
Gauges
Dehydrators
Filters and strainers
Controls

Equipment Installation

Install condensers
Prepare compressor and motor bases
Install and align compressors and motors
Install evaporators and other cooling coils
Install and align centrifugal pumps and bases
Use of slings, lines, blocks and falls, chain hoists, rollers, dollies and skids

System Maintenance

Troubleshoot field systems
Test pressure, flow, etc.
Check liquid levels
Check repair leaks (Freon, liquid)
Purge, dehydrate, and charge systems
Repair, align, and adjust fans and blower sections
Align pulleys, bearing blocks, belt tension

Equipment Repair

Disassemble and clean, repair/renew, perform shop tests and run-in compressors
Repair, pressure test, dehydrate evaporators
Repair, acidize condensers, and roll condenser tubes
Remove, replace, disassemble, and test, clean, calibrate, renew defective parts on controls of all types such as: pneumatic, electrical, electro pneumatic, thermostatic, humidity, pressure, vacuum

Machine Shop Practice