Electrical Theory and Application for HVACR

Training Course

Success in the HVACR industry requires a solid understanding of basic electrical theory. This program is a comprehensive resource that provides students and practicing technicians with the information and knowledge necessary to accurately and safely diagnose and solve electrical system problems.

Main topics include: safety and hazard awareness, what is electricity, circuits and their components, motors, understanding wiring diagrams, automated control systems and troubleshooting.

Individuals completing this course will receive a certificate of completion.

Structure of the Course

  • Text: read the materials.

  • Video lectures: to help you hear and understand the concepts and content being presented.

  • Review questions: to test your knowledge and comprehension of what you've learned!

Course curriculum

  • 1

    Electrical Theory & Application for HVACR

    • Before You Begin

  • 2

    Safety and Hazard Awareness

    • Objectives

    • Introduction Video

    • Introduction

    • Electrical Shock Video

    • Electrical Shock

    • Lockout/Tagout Procedures Video

    • Lockout/Tagout Procedures

    • Do Not Work Alone

    • Learn First Aid Video

    • Learn First Aid

    • Electrical Burns

    • Portable Electric Tools Video

    • Portable Electric Tools

    • Non-Conducting Ladders Video

    • Non-Conducting Ladders

    • Safety Guidelines Video

    • Safety Guidelines

    • End of Lesson Review Questions

  • 3

    What Is Electricity?

    • Objectives

    • Introduction Video

    • Introduction

    • Atoms/Electrons Video

    • Atoms / Electrons

    • Potential Difference

    • Volts Video

    • Volts

    • Measuring Volts Video

    • Measuring Volts

    • How Electrons Flow Through A Conductor Video

    • How Electrons Flow Through A Conductor

    • Amperage Video

    • Amperage

    • Resistance Video

    • Resistance

    • Ohm's Law Video

    • Ohm’s Law

    • Resistance and Reactance Video

    • Resistance and Reactance

    • Pure Resistance Video

    • Pure Resistance

    • Inductive Reactive Video

    • Inductive Reactive

    • Capactive Reactance Video

    • Capactive Reactance

    • Impedence Video

    • Impedance

    • Measuring Resistance Video

    • Measuring Resistance

    • Wattage Video

    • Wattage

    • End of Lesson Review Questions

  • 4

    Circuits and Their Components

    • Objectives

    • Simple Circuits Video

    • Simple Circuit

    • Series Circuits Video

    • Series Circuits

    • Total Resistance in a Series Circuit Video

    • Total Resistance in a Series Circuit

    • Series Circuit Laws Video

    • Series Circuit Laws

    • Parallel Circuits

    • Total Resistance in a Parallel Circuit Video

    • Total Resistance in a Parallel Circuit

    • Parallel Circuit Laws Video

    • Parallel Circuit Laws

    • Combination Series-Parallel Circuits Video

    • Combination Series/Parallel Circuits

    • Three-Phase Circuits Video

    • Three-Phase Circuits

    • Single-Phase Circuits Video

    • Single-Phase Circuits

    • The Neutral Wire Video

    • The Neutral Wire

    • The Safety Ground Wire Video

    • The Safety Ground Wire

    • Conductors Video

    • Conductors

    • Insulators Video

    • Insulators

    • Semi-Conductors Video

    • Semi-Conductors

    • Circuit Protection Video

    • Circuit Protection

    • Loads and Switches Video

    • Loads and Switches

    • Transformers Video

    • Transformers

    • Low Voltage Transformers Video

    • Low-Voltage Transformers

    • Solenoid Valves Video

    • Solenoid Valves

    • Relays Video

    • Relays

    • Sequencer

    • Contactors Video

    • Contactors

    • Contactor Coil Burn-Out

    • Line Starters Video

    • Line Starters

    • Defrost Timers Video

    • Defrost Timers

    • Thermostats Video

    • Thermostats

    • Heat Anticipators

    • End of Lesson Review Questions

  • 5

    Motors

    • Objectives

    • Introduction

    • Induction Motors Video

    • Induction Motors

    • The Parts of a Motor Video

    • The Parts of a Motor

    • Stator Poles Video

    • Stator Poles

    • Stators

    • Rotors Video

    • Rotors

    • Motor Speed Video

    • Motor Speed

    • Shaded Pole Video

    • Shaded Pole

    • Split-Phase Motors Video

    • Split-Phase Motors

    • Direction of Rotation Video

    • Direction of Rotation

    • Disconnecting the Start Winding Video

    • Disconnecting the Start Winding

    • CS or CSIR Motors

    • CS or CSIR Motors

    • PSC Motors Video

    • PSC Motors

    • CSR Motors Video

    • CSR Motors

    • Identifying Hermetic Motor Terminals Video

    • Identifying Hermetic Motor Terminals

    • Electronically Commutated Motors (ECM's) Video

    • Electronically Commutated Motors (ECMs)

    • Shaded Pole and PSC Motor Speeds

    • Capacitors Video

    • Capacitors

    • Start Capacitors Video

    • Start Capacitors

    • Run Capacitor Video

    • The Run Capacitor

    • Capacitor Ratings Video

    • Capacitor Ratings

    • Single-Phase Motor Starting Relays

    • Current Relay Video

    • Current Relay

    • Potential Relay Video

    • Potential Relay

    • Solid State and PTC Video

    • Solid State and PTC

    • Calculating Motor Horsepower Video

    • Calculating Motor Horsepower

    • Service Factor Video

    • Service Factor

    • Locked Rotor AMPS (LRA) Video

    • Locked Rotor AMPS (LRA)

    • Full Load AMPS (FLA) Video

    • Full Load AMPS (FLA)

    • Overload Protectors Video

    • Overload Protectors

    • Three-Phase Motors Video

    • Three-Phase Motors

    • Changing the Rotation of a Three-Phase Motor Video

    • Changing the Rotation of a Three-Phase Motor

    • Checking Resistance of Windings

    • Dual-Voltage Three-Phase Motors Video

    • Dual-Voltage Three-Phase Motors

    • The Motor Name Plate Video

    • The Motor Name Plate

    • Name Plate Data Definitions

    • Variable Frequency Drives (VFDs)

    • Variable-Speed Drives (VSDs)

    • End of Lesson Review Questions

  • 6

    Understanding Wiring Diagrams

    • Objectives

    • Pictorial and Schematic Diagrams Video

    • Pictorial and Schematic Diagrams

    • Pictorials Versus Schematics Video

    • Pictorials Versus Schematics

    • Combining Pictorial and Schematic Drawing Video

    • Combining Pictorial and Schematic Drawing

    • Line-Side Versus Load-Side

    • Ladder Diagrams Video

    • Ladder Diagrams

    • Reading a Wiring Schematic Video

    • Reading A Wiring Schematic

    • Schematic Diagram Symbols Video

    • Schematic Diagram Symbols

    • End of Lesson Review Questions

  • 7

    Automated Control Systems

    • Objectives

    • Introduction

    • Why Have Automated Controls Video

    • Why Have Automated Controls

    • Building Automation Video

    • Building Automation

    • System Protocols Video

    • System Protocols

    • Basic Operating Structure Video

    • Basic Operating Structure

    • Controller Typers

    • Network Connections Video

    • Network Connections

    • End of Lesson Review Questions

  • 8

    Troubleshooting

    • Objectives

    • Introduction Video

    • Introduction

    • Terms Video

    • Terms

    • Voltmeters Video

    • Voltmeters

    • Lineal Searching Video

    • Lineal Searching

    • Split Searching Video

    • Split Searching

    • Troubleshooting Using a Voltmeter Video

    • Troubleshooting Using A Voltmeter

    • Ohmmeters Video

    • Ohmmeters

    • Ammeters Video

    • Ammeters

    • Troubleshooting Switches Video

    • Troubleshooting Switches

    • Systematic Troubleshooting

    • Voltmeter or Ohmmeter Video

    • Voltmeter or Ohmmeter?

    • Testing Capacitors Video

    • Testing Capacitors

    • Tips and Suggestions

    • End of Lesson Review Questions

  • 9

    Glossary

    • Glossary

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