Electricity for Refrigeration, Heating and Air Conditioning,9780766873377

Electricity for Refrigeration, Heating and Air Conditioning

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ISBN13: 9780766873377
ISBN10: 0766873374
Format: Paperback
Pub. Date: 2002-07-15
Publisher(s): CENGAGE Delmar Learning
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List Price: $161.65

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Summary

Ideal for students and beginning technicians, Electricity for Refrigeration, Heating and Air Conditioning, 6E zeroes in on the basic electrical principles necessary to understand today's modern control systems. This extraordinarily practical approach allows readers to focus exclusively on the electronics information they will use in the field, without bogging them down in unnecessary theory. Newly-updated in direct response to user feedback, this edition now features all-new chapters on electrical safety, reading wiring diagrams, and troubleshooting modern HVAC-R control systems and circuitry. A second color has also been added throughout the book to highlight "must-know" information for readers, such as the circuits being discussed in schematic diagrams, as well as the direction of the current flow within circuits. As in past editions, emphasis is on developing systematic diagnosis and troubleshooting methods and procedures in order to enable readers to become highly

Table of Contents

Preface vi
Electrical Safety
1(16)
Objectives
1(1)
Key Terms
1(1)
Introduction
1(13)
Electrical Injuries
2(4)
Dealing with Shock Victims
6(1)
National Electrical Code®
7(1)
Electrical Grounding
8(3)
Circuit Protection
11(2)
Circuit Lockout Procedures
13(1)
Electrical Safety Guidelines
13(1)
Summary
14(1)
Review Questions
14(3)
Basic Electricity
17(21)
Objectives
17(1)
Key Terms
17(1)
Introduction
18(16)
Atomic Theory
18(2)
Positive and Negative Charges
20(1)
Flow of Electrons
21(3)
Conductors and Insulators
24(1)
Electric Potential
25(1)
Current Flow
26(1)
Resistance
27(1)
Electric Power and Energy
28(3)
Ohm's Law
31(2)
Calculating Electric Power
33(1)
Summary
34(1)
Review Questions
35(3)
Electric Circuits
38(16)
Objectives
38(1)
Key Terms
38(1)
Introduction
39(12)
Basic Concepts of Electric Circuits
39(2)
Series Circuits
41(4)
Parallel Circuits
45(4)
Series-Parallel Circuits
49(2)
Summary
51(1)
Review Questions
52(2)
Electric Meters
54(20)
Objectives
54(1)
Key Terms
54(1)
Introduction
55(16)
Electric Meters
56(5)
Ammeters
61(4)
Voltmeters
65(3)
Ohmmeters
68(3)
Summary
71(1)
Review Questions
72(2)
Components, Symbols, and Circuitry of Air-Conditioning Wiring Diagrams
74(27)
Objectives
74(1)
Key Terms
75(1)
Introduction
75(19)
Loads
76(4)
Contactors and Relays
80(4)
Magnetic Starters
84(1)
Switches
84(4)
Safety Devices
88(2)
Transformers
90(1)
Schematic Diagrams
91(3)
Pictorial Diagrams
94(1)
Installation Diagrams
94(1)
Summary
94(4)
Review Questions
98(3)
Reading Schematic Diagrams
101(76)
Objectives
101(1)
Key Terms
101(1)
Introduction
102(70)
Schematic Diagram Design
103(8)
Reading Basic Schematic Diagrams
111(17)
Reading Advanced Schematic Diagrams
128(44)
Summary
172(1)
Review Questions
173(4)
Alternating Current, Power Distribution, and Voltage Systems
177(18)
Objectives
177(1)
Key Terms
177(1)
Introduction
177(15)
Basic Concepts of Alternating Current
178(5)
Power Distribution
183(2)
240 Volt-Single-Phase-60 Hertz Systems
185(1)
Three-Phase Voltage Systems
186(1)
240 Volt-Three-Phase-60 Hertz Delta System
187(1)
208 Volt-Three-Phase-60 Hertz Wye System
188(2)
Higher-Voltage Systems
190(2)
Summary
192(1)
Review Questions
193(2)
Installation of Heating, Cooling, and Refrigeration Systems
195(26)
Objectives
195(1)
Key Terms
195(1)
Introduction
196(21)
Sizing Wire
196(7)
Disconnect Switches
203(4)
Fusible Load Centers
207(1)
Breaker Panels
208(3)
Distribution Centers
211(2)
Installing Electrical Circuits for Refrigeration, Heating, and Air-Conditioning Equipment
213(4)
Summary
217(1)
Review Questions
218(3)
Basic Electric Motors
221(55)
Objectives
221(1)
Key Terms
222(1)
Introduction
222(45)
Magnetism
222(3)
Basic Electric Motor
225(2)
Types of Electric Motors
227(2)
Shaded-Pole Motors
229(4)
Capacitors
233(4)
Split-Phase Motors
237(6)
Permanent Split-Capacitor Motors
243(3)
Capacitor-Start-Capacitor-Run Motors
246(1)
Three-Phase Motors
247(3)
Hermetic Compressor Motors
250(9)
Service Call Protocol
259(2)
Service Calls
261(6)
Summary
267(2)
Review Questions
269(4)
Practice Service Calls
273(3)
Components for Electric Motors
276(34)
Objectives
276(1)
Key Terms
276(1)
Introduction
277(27)
Starting Relays for Single-Phase Motors
277(1)
Current or Amperage Relays
278(3)
Potential Relays
281(6)
Hot-Wire Relays
287(1)
Solid-State Starting Relays and Devices
288(6)
Motor Bearings
294(2)
Motor Drives
296(3)
Service Calls
299(5)
Summary
304(1)
Review Questions
305(2)
Practice Service Calls
307(3)
Contactors, Relays, and Overloads
310(37)
Objectives
310(1)
Key Terms
310(1)
Introduction
311(30)
Contactors
312(5)
Relays
317(6)
Overloads
323(9)
Magnetic Starters
332(4)
Push-Button Stations
336(1)
Service Calls
337(4)
Summary
341(2)
Review Questions
343(1)
Practice Service Calls
344(3)
Thermostats, Pressure Switches, and Other Electric Control Devices
347(48)
Objectives
347(1)
Key Terms
348(1)
Introduction
348(41)
Transformers
349(2)
Thermostats
351(15)
Staging Thermostats
366(4)
Clock Thermostats
370(6)
Pressure Switches
376(4)
Miscellaneous Electric Components
380(4)
Service Calls
384(5)
Summary
389(1)
Review Questions
390(2)
Practice Service Calls
392(3)
Heating Control Devices
395(48)
Objectives
395(1)
Key Terms
395(1)
Introduction
396(40)
Heating Fundamentals
397(3)
Basic Heating Controls
400(7)
Gas Heating Controls
407(12)
Oil Heating Controls
419(8)
Electric Heating Controls
427(2)
Hydronic and Steam Controls
429(3)
Service Calls
432(4)
Summary
436(2)
Review Questions
438(2)
Practice Service Calls
440(3)
Troubleshooting Electric Control Devices
443(50)
Objectives
443(1)
Key Terms
443(1)
Introduction
443(40)
Electric Motors
444(2)
Contactors and Relays
446(2)
Overloads
448(7)
Thermostats
455(3)
Pressure Switches
458(2)
Transformers
460(1)
Electric Heating Controls
461(3)
Gas Heating Controls
464(9)
Oil Heating Controls
473(4)
Service Calls
477(6)
Summary
483(2)
Review Questions
485(2)
Practice Service Calls
487(6)
Air-Conditioning Control Systems
493(27)
Objectives
493(1)
Key Terms
493(1)
Introduction
493(23)
Basic Condensing Units
495(5)
Packaged Units
500(8)
Field Wiring
508(8)
Summary
516(1)
Review Questions
517(3)
Control Systems: Circuitry
520(28)
Objectives
520(1)
Key Terms
520(1)
Introduction
520(23)
Basic Control Circuits
521(5)
Total Control System of Residential Units
526(1)
Advanced Control Systems
527(9)
Methods of Control on Advanced Systems
536(4)
Total Commercial and Industrial Control Systems
540(3)
Summary
543(1)
Review Questions
544(4)
Troubleshooting Modern Refrigeration, Heating, and Air-Conditioning Control Circuitry and Systems
548(52)
Objectives
548(1)
Key Terms
548(1)
Introduction
549(43)
Diagnosis of Electrical Components
550(2)
Troubleshooting Tools
552(11)
Troubleshooting with Electrical Meters
563(5)
Using Troubleshooting Charts
568(6)
Hopscotching: A Useful Tool for Troubleshooting
574(4)
Troubleshooting Control Systems
578(8)
Service Calls
586(6)
Summary
592(1)
Review Questions
593(3)
Practice Service Calls
596(4)
Solid-State Controls and Systems
600(31)
Objectives
600(1)
Key Terms
600(1)
Introduction
601(26)
Electronic System Components
602(5)
Basic Electronic Control Fundamentals
607(2)
Basic Electronic Controls
609(12)
Basic Electronic Control Systems Used in Residential Conditioned Air Systems
621(3)
Advanced Electronic Controls
624(3)
Troubleshooting Electronic Controls
627(1)
Summary
627(2)
Review Questions
629(2)
Glossary 631(10)
Index 641

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