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Electricity for Refrigeration, Heating, And Air Conditioning,9781418042875
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Electricity for Refrigeration, Heating, And Air Conditioning

by
Edition:
7th
ISBN13:

9781418042875

ISBN10:
1418042870
Format:
Paperback
Pub. Date:
8/17/2006
Publisher(s):
CENGAGE Delmar Learning

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Summary

Ideal for students and beginning technicians, Electricity for Refrigeration, Heating and Air Conditioning, 7E 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. Chapter 9 includes new information on motor frames and electronically commutated motors, ECM. 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-skilled, professional HVAC-R service technicians. A comprehensive glossary is also included to assist those who are new to the field in understanding and using industry terms.

Table of Contents

Preface vi
Electrical Safety
1(16)
Objectives
1(1)
Key Terms
1(1)
Introduction
1(1)
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
14(1)
Summary
14(1)
Review Questions
15(2)
Basic Electricity
17(21)
Objectives
17(1)
Key Terms
17(1)
Introduction
18(1)
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(1)
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(1)
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(1)
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(1)
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(1)
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(1)
Sizing Wire
196(8)
Disconnect Switches
204(2)
Fusible Load Centers
206(1)
Breaker Panels
207(4)
Distribution Centers
211(1)
Installing Electrical Circuits For Refrigeration, Heating, and Air-Conditioning Equipment
212(5)
Summary
217(1)
Review Questions
218(3)
Basic Electric Motors
221(61)
Objectives
221(1)
Key Terms
222(1)
Introduction
222(1)
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)
Electronically Commutated Motors
250(6)
Hermetic Compressor Motors
256(10)
Service Call Protocol
266(2)
Service Calls
268(6)
Summary
274(2)
Review Questions
276(3)
Practice Service Calls
279(3)
Components for Electric Motors
282(32)
Objectives
282(1)
Key Terms
282(1)
Introduction
283(1)
Starting Relays for Single-Phase Motors
283(1)
Current or Amperage Relays
284(3)
Potential Relays
287(6)
Solid-State Starting Relays and Devices
293(5)
Motor Bearings
298(2)
Motor Drives
300(3)
Service Calls
303(5)
Summary
308(1)
Review Questions
309(2)
Practice Service Calls
311(3)
Contactors, Relays, and Overloads
314(37)
Objectives
314(1)
Key Terms
314(1)
Introduction
315(1)
Contactors
316(5)
Relays
321(6)
Overloads
327(9)
Magnetic Starters
336(4)
Push-Button Stations
340(1)
Service Calls
341(4)
Summary
345(2)
Review Questions
347(1)
Practice Service Calls
348(3)
Thermostats, Pressure Switches, and Other Electric Control Devices
351(47)
Objectives
351(1)
Key Terms
352(1)
Introduction
352(1)
Transformers
353(2)
Thermostats
355(15)
Staging Thermostats
370(4)
Clock Thermostats
374(5)
Pressure Switches
379(4)
Miscellaneous Electric Components
383(4)
Service Calls
387(5)
Summary
392(1)
Review Questions
393(2)
Practice Service Calls
395(3)
Heating Control Devices
398(51)
Objectives
398(1)
Key Terms
398(1)
Introduction
399(1)
Heating Fundamentals
400(3)
Basic Heating Controls
403(8)
Gas Heating Controls
411(14)
Oil Heating Controls
425(8)
Electric Heating Controls
433(2)
Hydronic and Steam Controls
435(3)
Service Calls
438(4)
Summary
442(2)
Review Questions
444(2)
Practice Service Calls
446(3)
Troubleshooting Electric Control Devices
449(50)
Objectives
449(1)
Key Terms
449(1)
Introduction
449(1)
Electric Motors
450(2)
Contactors and Relays
452(2)
Overloads
454(7)
Thermostats
461(3)
Pressure Switches
464(2)
Transformers
466(1)
Electric Heating Controls
467(3)
Gas Heating Controls
470(9)
Oil Heating Controls
479(4)
Service Calls
483(6)
Summary
489(2)
Review Questions
491(2)
Practice Service Calls
493(6)
Air-Conditioning Control Systems
499(27)
Objectives
499(1)
Key Terms
499(1)
Introduction
499(2)
Basic Condensing Units
501(5)
Packaged Units
506(8)
Field Wiring
514(8)
Summary
522(1)
Review Questions
523(3)
Control Systems Circuitry
526(28)
Objectives
526(1)
Key Terms
526(1)
Introduction
526(1)
Basic Control Circuits
527(5)
Total Control System of Residential Units
532(1)
Advanced Control Systems
533(9)
Methods of Control on Advanced Systems
542(4)
Total Commercial and Industrial Control Systems
546(3)
Summary
549(1)
Review Questions
550(4)
Troubleshooting Modern Refrigeration, Heating, and Air-Conditioning Control Circuitry and Systems
554(52)
Objectives
554(1)
Key Terms
554(1)
Introduction
555(1)
Diagnosis of Electrical Components
556(2)
Troubleshooting Tools
558(11)
Troubleshooting with Electrical Meters
569(5)
Using Troubleshooting Charts
574(6)
Hopscotching: A Useful Tool for Troubleshooting
580(4)
Troubleshooting Control Systems
584(8)
Service Calls
592(6)
Summary
598(1)
Review Questions
599(3)
Practice Service Calls
602(4)
Solid-State Controls and Systems
606(31)
Objectives
606(1)
Key Terms
606(1)
Introduction
607(1)
Electronic System Components
608(5)
Basic Electronic Control Fundamentals
613(2)
Basic Electronic Controls
615(12)
Basic Electronic Control Systems Used in Residential Conditioned Air Systems
627(3)
Advanced Electronic Controls
630(3)
Troubleshooting Electronic Controls
633(1)
Summary
633(2)
Review Questions
635(2)
Appendix A 637(2)
Glossary 639(10)
Index 649


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