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55

Competency and Task List

Students should have

knowledge of and be able

to describe and

demonstrate the

following safety

requirements:

Describe and perform “Lock out and Tag” procedures

System leak-test pressures and nitrogen regulator installation and adjustment

Explain and demonstrate the proper method of connecting a micron gauge to the

system

Commercial Refrigeration

troubleshooting and

problem solving:

Troubleshooting and Problem Solving involves diagnostic procedures requiring the use

of test equipment, manufacturers’ installation and start up procedures, and data plate

information.

Knowledge of the

following test instruments

and or tools is required:

Ammeter

Oil pressure gauge

Ohmmeter

Oil pump

Voltmeter

Nitrogen Cylinder

Micron gauge

Vacuum pump

Sling Psychrometer

Refrigerant throttling valve

Thermometers (wet and dry)

Recovery equipment

Leak detector

Charging scale and charging cylinder

Gauge manifold assembly

Soldering and brazing equipment

Commercial Refrigeration