May 18, 2024  
2020-2021 Course Catalog 
    
2020-2021 Course Catalog [ARCHIVED CATALOG]

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HCR 404 - Electricity

Credits: 5
Lecture Hours: 2
Lab Hours: 6
Practicum Hours: 0
Work Experience: 0
Course Type: Voc/Tech
A study of basic electricity principles: Ohm’s law, series and parallel circuits as applied to HVAC and refrigeration. Course also includes hands-on practice with training boards in the lab.
Competencies
  1. Basic Electricity
    1. Define conductors
    2. Define insulators
    3. Explain the four factors of an electric circuit
    4. Use Ohm’s Law
  2. Electric circuits and electric meters
    1. Define or explain the three types of electric circuits
    2. Explain and use a clamp-on ammeter
    3. Explain and use a voltmeter
    4. Explain and use an ohmmeter
  3. Components, symbols, and circuitry of air-conditioning wiring diagrams
    1. Recognize, test, and install relays and contactors
    2. Explain the four different types of switches
    3. Define protective device
    4. Recognize, test, and install transformers
    5. Work with schematic diagrams
    6. Work with pictorial diagrams
    7. Work with installation diagrams
  4. Alternating current, power distribution, and voltages systems
    1. Define alternating current
    2. Define direct current
    3. Explain power factor
    4. List the common voltage characteristics of single and 3 phase power
  5. Installation of heating, cooling, and refrigeration systems
    1. Work with electric circuits and circuit components, wire series, parallel and series – parallel circuits.
    2. Explain wire sizing
    3. Explain different types of electric panels
  6. Basic electric motors
    1. Recognize and test different types of electric motors
    2. Explain the different types of electric motors
    3. Define capacitor
    4. Recognize and test different types of capacitors
    5. Define hermetic compressors
  7. Components for electric motors
    1. Define starting relays
    2. Define bearings
    3. Define magnetic starters
    4. Define overload protectors
  8. Components for gas heat
    1. Define gas valve.
    2. Define limit switch
    3. Define fan switch
    4. Define transformer
    5. Define thermostat



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