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39

Competency and Task List

Electrical

Students should

have knowledge of

and be able to

demonstrate

proficiency in:

Installing and evaluating a control relay

Installing and evaluating a defrost timer

Installing and evaluating a digital thermostat

Installing and evaluating a line starter

Installing and evaluating a solenoid valve

Installing and evaluating start relays (current, potential, and solid state)

Installing and evaluating temperature coefficient thermistors

Identifying electrical symbols used in HVACR schematics

Identifying inoperative/defective components using schematic wiring diagrams

Identifying voltage between two points using schematic wiring diagrams

Installing and evaluating a communications thermostat

Installing, evaluating and servicing a dual stage thermostat

Servicing and installing equipment control circuits

Servicing and installing equipment power supply

Identifying the types and describing the proper application and use of common switches use

in HVACR

Identifying the types and describing the proper application and use of a Positive temperature

coefficient thermistors (PTC)

Describing and demonstrating the proper solder, flux, and procedures for soldering electrical

wiring

Students should

have knowledge of

and be able to

describe and

demonstrate the

following safety

requirements:

Ladder safety procedures

Describe and perform “Lock out and Tag” procedures

Identifying the safety ground

Identifying the “Hot” conductor

Identifying “Neutral” conductor

Electrical Shock, prevention and first aid

Electrical Burns, prevention and first aid

Describe and demonstrate emergency first aid procedures

Knowledge of the

following test

instruments and or

tools is required:

Ohmmeter

Multimeter

Ammeter

Voltmeter

Wattmeter

Hermetic compressor analyzer

Relay tester

Megger meter

Capacitor analyzer