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Aug 31, 2024
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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
- Basic Electricity
- Define conductors
- Define insulators
- Explain the four factors of an electric circuit
- Use Ohm’s Law
- Electric circuits and electric meters
- Define or explain the three types of electric circuits
- Explain and use a clamp-on ammeter
- Explain and use a voltmeter
- Explain and use an ohmmeter
- Components, symbols, and circuitry of air-conditioning wiring diagrams
- Recognize, test, and install relays and contactors
- Explain the four different types of switches
- Define protective device
- Recognize, test, and install transformers
- Work with schematic diagrams
- Work with pictorial diagrams
- Work with installation diagrams
- Alternating current, power distribution, and voltages systems
- Define alternating current
- Define direct current
- Explain power factor
- List the common voltage characteristics of single and 3 phase power
- Installation of heating, cooling, and refrigeration systems
- Work with electric circuits and circuit components, wire series, parallel and series – parallel circuits.
- Explain wire sizing
- Explain different types of electric panels
- Basic electric motors
- Recognize and test different types of electric motors
- Explain the different types of electric motors
- Define capacitor
- Recognize and test different types of capacitors
- Define hermetic compressors
- Components for electric motors
- Define starting relays
- Define bearings
- Define magnetic starters
- Define overload protectors
- Components for gas heat
- Define gas valve.
- Define limit switch
- Define fan switch
- Define transformer
- Define thermostat
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