9781435484276

Electricity and Controls for HVAC-R

by ;
  • ISBN13:

    9781435484276

  • ISBN10:

    1435484274

  • Edition: 6th
  • Format: Paperback
  • Copyright: 6/12/2009
  • Publisher: Delmar Cengage Learning
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Summary

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.

Table of Contents

Prefacep. ix
Basic Electricityp. 1
A Special Note on Safetyp. 2
Atomic Structurep. 6
Electrical Quantities and Ohm's Lawp. 15
Measuring Instrumentsp. 24
Electrical Circuitsp. 35
Electrical Servicesp. 50
Wire Size and Voltage Dropp. 63
Inductancep. 72
Capacitancep. 79
Control Circuitsp. 89
Schematics and Wiring Diagramsp. 90
Developing Wiring Diagramsp. 107
Motorsp. 117
Split-Phase Motorsp. 118
The Shaded-Pole Induction Motorp. 131
Multispeed Motorsp. 135
Three-Phase Motor Principlesp. 148
The Squirrel-Cage Induction Motorp. 159
The Wound Rotor Induction Motorp. 179
The Synchronous Motorp. 186
Brushless DC Motorsp. 193
Transformersp. 199
Isolation Transformersp. 200
Autotransformersp. 221
Current Transformersp. 227
Control Componentsp. 233
Overloadsp. 234
Relays, Contactors, and Motor Startersp. 243
The Solid-State Relayp. 248
The Control Transformerp. 252
Starting Relaysp. 260
Variable-Speed Motor Controlp. 270
The Defrost Timerp. 274
The Thermostatp. 282
Pressure Switchesp. 298
The Flow Switchp. 304
The Humidistatp. 308
Fan-Limit Switchesp. 311
The Oil-Pressure Failure Switchp. 317
Solenoid Valvesp. 321
The Short-Cycle Timerp. 327
Methods of Sensing Temperaturep. 338
Gas Burner Controlsp. 347
Oil Burner Controlsp. 353
Troubleshooting Using Control Schematicsp. 359
Introduction to Troubleshootingp. 360
Room Air Conditionersp. 376
A Commercial Air Conditioning Unitp. 383
Heat-Pump Controlsp. 388
Packaged Units: Electric Air Conditioning and Gas Heatingp. 400
Ice Maker And Refrigeration Controlsp. 413
Household Ice Makersp. 414
Commercial Ice Makersp. 436
Refrigeration Controlsp. 452
Solid-State Devicesp. 463
Resistors and Color Codesp. 464
Semiconductor Materialsp. 472
The PN Junctionp. 478
Light-Emitting Diodes (LEDs) and Photodiodesp. 483
The Transistorp. 490
The Unijunction Transistorp. 496
The Silicon-Controlled Rectifierp. 501
The Diacp. 509
The Triacp. 512
The Operational Amplifierp. 518
Solid-State Controlsp. 531
Programmable Logic Controllersp. 532
Programming a PLCp. 546
Analog Sensing for Programmable Controllersp. 557
Glossaryp. 561
Indexp. 579
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