 |
 |
 |
|
Now in its sixth edition, Electricity and Controls for HVAC/R equips readers with the information needed to work effectively with all types of motors and control devices found in the heating and air-conditioning industry. Prior knowledge of electricity is not required as this book begins with discussion of essential basic electricity and electrical circuits concepts. Numerous schematic diagrams and step-by-step troubleshooting procedures are included to acquaint readers with all of the different types of circuits commonly encountered in the HVAC-R field.
Features:
- Many photographs have been replaced and updated along with new line art.
- Text is updated to the latest technology and reflects the current National Electrical Code requirements.
- Text design has been updated to provide ease in navigating chapter material.
- Unit on atomic structure has been rewritten to reflect the most accepted theories concerning the structure of atoms.
- The unit devoted to troubleshooting has been expanded to include an example of a step-by-step procedure for determining the problems with a central air conditioning system.
- COMPREHENSIVE COVERAGE: Comprehensive coverage of electric motors includes three-phase motors, squirrel cage induction motors, wound rotor motors, synchronous motors, and more.
- PRACTICAL EXPLANATIONS: Circuits commonly encountered in the field are explained in a practical, non-mathematical manner.
- UPDATED UNITS ON LATEST TECHNOLOGIES: New units on brushless DC motors, as well as light-emitting diodes (LEDs) and photodiodes introduce students to the latest technologies in the field.
- UPDATED UNITS ON INDUSTRY PRACTICES: Units on programmable logic controllers (PLCs) and programming PLCs are thoroughly updated to remain current with industry practices.
- REQUIREMENTS FOR 2008 NEC STANDARDS: Requirements for unit installation have been updated to comply with 2008 NEC standards.
From the Preface
Electricity and Controls for HVAC/R is written with the assumption that the student has no prior knowledge of electricity or control systems. Basic electrical theory is presented in a practical, straightforward manner. Mathematical explanations are used only when necessary to explain certain concepts of electricity. Each unit starts with the objectives of the unit and ends with a summary of important facts.
The text begins with the study of basic electrical theory and progresses to series circuits, parallel circuits, alternating current, inductive circuits, and capacitive circuits. The text also includes information on different types of three-phase services found in industrial and commercial locations as well as single-phase residential services. Individual devices and components common to the air conditioning, heating, and refrigeration field are presented in a practical manner. Devices are explained from a standpoint of how they operate and how they are used. The text contains testing procedures for many of the devices covered. The practical presentation of these devices makes this text a must-have reference book for the service technician working in the field.
Electricity and Controls for HVAC/R 6th Edition includes information on isolation transformers, autotransformers, and current transformers. The three major types of three-phase motors - squirrel cage induction, wound rotor, and synchronous - are also covered. Coverage of single-phase motors includes: split-phase motors, resistance-start induction-run motors, capacitor-start induction-run motors, and permanent-split capacitor motors. Shaded-pole induction motors and multispeed motors are also covered. The sixth edition also provides information on variable-frequency drives.
Control circuits are developed using the components in the text. The text assumes that the student has no prior knowledge of control systems. Operation of the manufacturer's control schematics is explained to aid the student in understanding how a control system operates and how to troubleshoot the system.
Electricity and Controls for HVAC/R 6th Edition includes information on household and commercial icemaker controls. These circuits are explained in a step-by-step procedure to ensure that students have a thorough working knowledge of these units.
Solid-state devices common to the HVAC/R field are covered in a straightforward manner. The devices covered are: diode, transistor, SCR, diac, triac, and operational amplifier. The last section of the text covers programmable logic controllers, which are becoming more and more common in the field.
New for the Sixth Edition
The unit on atomic structure has been rewritten to reflect the most accepted theories concerning the structure of atoms. Many of the illustrations have been updated to help students gain a better understanding of the principles involved concerning the subject matter. The unit devoted to troubleshooting has been expanded to include an example of a step-by-step procedure for determining the problems with a central air-conditioning system.
Features of this Book
Electricity and Controls for HVAC/R 6th Edition contains many features to help enhance learning for the student:
- A special section covering Safety rules at the front of the book reminds students to follow correct procedures and take the necessary precautions when working around electricity.
- Step-by-Step Procedures are integrated throughout the text where applicable, and provide students with a thorough working knowledge of the HVAC systems.
- Troubleshooting Questions present situations in which students must develop critical-thinking and problem-solving skills to prepare them for the field.
- Review Questions and Practice Problems are included at the end of each unit to allow students to evaluate their comprehension of the material and apply what they have learned from the information presented in the unit.
- An extensive art program includes schematics, line drawings, and up-to-date photos that help to reinforce the information presented in the text.
Table of Contents
Section I: Basic Electricity. Unit 1: Atomic Structure. Unit 2: Electrical Quantities and Ohm's Law. Unit 3: Measuring Instruments. Unit 4: Electrical Circuits. Unit 5: Electrical Services. Unit 6: Wire Size and Voltage Drop. Unit 7: Inductance. Unit 8: Capacitance. Section II: Control Circuits. Unit 9: Schematic and Wiring Diagrams. Unit 10: Developing Wiring Diagrams. Section III: Motors. Unit 11: Split-Phase Motors. Unit 12: The Shaded-Pole Induction Motor. Unit 13: Multispeed Motors. Unit 14: Three-Phase Motor Principles. Unit 15: The Squirrel-Cage Induction Motor. Unit 16: The Wound Rotor Induction Motor. Unit 17: The Synchronous Motor. Unit 18: Brushless DC Motors. Section IV: Transformers. Unit 19: Isolation Transformers. Unit 20: Autotransformers. Unit 21: Current Transformers. Section V: Control Components. Unit 22: Overloads. Unit 23: Relays, Contactors, and Motor Starters. Unit 24: The Solid-State Relay. Unit 25: The Control Transformer. Unit 26: Starting Relays. Unit 27: Variable-Speed Motor Control. Unit 28: The Defrost Timer. Unit 29: The Thermostat. Unit 30: Pressure Switches. Unit 31: The Flow Switch. Unit 32: The Humidistat. Unit 33: Fan-Limit Switches. Unit 34: The Oil-Pressure Failure Switch. Unit 35: Solenoid Valves. Unit 36: The Short-Cycle Timer. Unit 37: Methods of Sensing Temperature. Unit 38: Gas Burner Controls. Unit 39: Oil Burner Controls. Section VI: Troubleshooting Using Control Schematics. Unit 40: Introduction to Troubleshooting. Unit 41: Room Air Conditioners. Unit 42: A Commercial Air-Conditioning Unit. Unit 43: Heat-Pump Controls. Unit 44: Packaged Units: Electric Air Conditioning and Gas Heat. Section VII: Ice Maker and Refrigeration Controls. Unit 45: Household Ice Makers. Unit 46: Commercial Ice Makers. Unit 47: Refrigeration Controls. Section VIII: Solid-State Devices. Unit 48: Resistors and Color Codes. Unit 49: Semiconductor Materials. Unit 50: The PN Junction. Unit 51: Light-Emitting Diodes (LEDs) and Photodiodes. Unit 52: The Transistor. Unit 53: The Unijunction Transistor. Unit 54: The Silicon-Controlled Rectifier. Unit 55: The Diac. Unit 56: The Triac. Unit 57: The Operational Amplifier. Section IX: Solid-State Controls. Unit 58: Programmable Logic Controllers. Unit 59: Programming a PC. Unit 60: Analog Sensing for Programmable Controllers. Glossary. Index. |
|
|
|
|
|
|
|
|
Hard Cover 
