Refrigeration and Air Conditioning An Introduction to HVAC

by AHRI; Jeffus, Larry

• ISBN13: 9780130925718
• ISBN10: 0130925713
• Edition: 4th
• Format: Hardcover
• Copyright: 2003-12-23
• Publisher: Prentice Hall

Summary

Revised, updated, and pedagogically improved, this new edition of the classic in the field sets a new curriculum standard. Based on input from industry experts, the staff of the Air-Conditioning and Refrigeration Institute, and many academic advisors, Refrigeration and Air Conditioning, Fourth Edition, reflects the state-of-the-art, as well as fundamental concepts, and practical applications. Some of the key features of this edition are: bull; bull;The text and lab manual mirror the ARI national curriculum guidelines and I.C.E. certification test requirements. bull;The text draws extensively upon field-tested materials from industry sources, relating concepts to real-world situations. bull;Full color photos and graphics. bull;Primarily written as a textbook, it is also organized to be used as a reference by technicians in the field. bull;Chapters and units cover single areas, making it easier to teach and learn. bull;Information has been gathered from technicians and industry leaders from various regions to more broadly represent the HVAC/R industry around the country. bull;Troubleshooting tips are included to help resolve problems in a quick and accurate manner. bull;Numerous sidebars highlight important technical tips, service tips, and safety tips.

Author Biography

Larry Jeffus is highly respected in both education and the refrigeration and air conditioning field, with more than 30 years of experience. His many years of dedicated service to his students and technical education were influential in leading Texas Governor Rick Perry to appoint Larry to the Texas Workforce Investment Council. Larry's aim in writing this book is to bring together, in a logical order, the data necessary to be successful in the HVAC/R industry. In doing this, he has been guided by his experience as a NATE Certified HVAC/R technician working in the field, as a teacher in the classroom, as a Texas licensed HVAC/R contractor, and as a consultant in the refrigeration and air conditioning field. He provides an excellent blend of theory with job-qualifying skill development and uses color photographs and line drawings that make the principles and service information easy to understand.

Table of Contents

SECTION I Fundamentals	1	(152)
1 Introduction	2	(39)
Unit 1 Introduction to Heating, Ventilation, Air Conditioning, and Refrigeration	2	(8)
Unit 2 Fundamentals	10	(15)
Unit 3 Safety	25	(11)
Unit 4 Temperature, Measurement, and Conversion	36	(5)
2 Tools, Meters, and Measuring Devices	41	(29)
Unit 1 Hand Power Tools	41	(11)
Unit 2 Electrical Measuring and Testing Devices/Meters	52	(6)
Unit 3 Refrigerant Servicing and Testing Equipment	58	(8)
Unit 4 Heating-Servicing and Testing Equipment	66	(4)
3 HVAC/R Practices	70	(83)
Unit 1 drawings and Blueprint Reading	70	(22)
Unit 2 Basic Building Construction	92	(12)
Unit 3 Screws, Rivets, Staples, and Other Fasteners	104	(10)
Unit 4 Brazing, Soldering, and Welding	114	(22)
Unit 5 Piping and Tubing	136	(5)
Unit 6 HVAC/R Math	141	(3)
Unit 7 Computers	144	(9)
SECTION II Refrigeration Principles	153	(198)
4 Principles of Matter and Thermodynamics	154	(40)
Unit 1 Principles of Matter	154	(10)
Unit 2 Thermodynamics	164	(5)
Unit 3 Fluid Pressure and Gas Laws	169	(11)
Unit 4 Refrigeration Cycle	180	(14)
5 Air Conditioning and Refrigeration system Components	194	(107)
Unit 1 System Components and Operation	194	(16)
Unit 2 Compressors	210	(26)
Unit 3 Evaporators	236	(22)
Unit 4 Condensers	258	(15)
Unit 5 Metering Devices	273	(11)
Unit 6 Refrigerant Piping	284	(17)
6 Refrigerants	301	(50)
Unit 1 Refrigerants	301	(13)
Unit 2 Accessing Sealed Systems	314	(11)
Unit 3 Refrigerant Management	325	(16)
Unit 4 Refrigerant Charging	341	(10)
SECTION III Electricity	351	(130)
7 Basic Electricity	352	(56)
Unit 1 Basic Electricity	352	(12)
Unit 2 Electrical Power	364	(11)
Unit 3 Electrical Meters	375	(9)
Unit 4 Electric Motors	384	(24)
8 Electrical Diagrams and Controls	408	(73)
Unit 1 Electrical Components and Wiring Diagrams	408	(24)
Unit 2 Controls	432	(24)
Unit 3 Wiring Diagrams	456	(25)
SECTION IV Residential Systems	481	(168)
9 Central Residential Air Conditioning	482	(23)
Unit 1 Air Conditioning	482	(12)
Unit 2 Troubleshooting Air Conditioning Systems	494	(11)
10 Central Residential Gas Warm Air Heating	505	(58)
Unit 1 Combustion and Fuels	505	(8)
Unit 2 Warm Air Furnaces	513	(11)
Unit 3 Installation, Startup, Checkout, and Operation	524	(7)
Unit 4 Controls	531	(20)
Unit 5 Troubleshooting Gas Heating systems	551	(12)
11 Central Residential Oil Warm Air Heating	563	(33)
Unit 1 Oil Fired Forced Air systems	563	(16)
Unit 2 Oil service	579	(9)
Unit 3 Troubleshooting Oil Heating Systems	588	(8)
12 Central Residential Electric Warm Air Heating	596	(17)
Unit 1 Electric Furnace	596	(9)
Unit 2 Troubleshooting Electric Furnaces	605	(8)
13 Central Residential Heat Pump Systems	613	(36)
Unit 1 Types of Heat Pump systems	613	(6)
Unit 2 Heat Pump Components	619	(12)
Unit 3 Air and Water Source Applications	631	(8)
Unit 4 Troubleshooting Heat Pump Systems	639	(10)
SECTION V Indoor Air Systems	649	(134)
14 Air Distribution	650	(53)
Unit 1 Duct systems	650	(22)
Unit 2 Zone Control systems	672	(11)
Unit 3 Testing and Balancing	683	(20)
15 Indoor Air Quality	703	(29)
Unit 1 Fundamentals of Air Conditioning	703	(12)
Unit 2 indoor Air Quality	715	(7)
Unit 3 Filters and Humidifiers	722	(10)
16 Load Calculaton	732	(51)
Unit 1 Refrigeration Load Calculations	732	(31)
Unit 2 Residential Load Calculations	763	(20)
SECTION VI Commercial Systems	783	(188)
17 Packaged Heating/Cooling Systems	784	(51)
Unit 1 Air Conditioning systems	784	(17)
Unit 2 Air Handling Units and Accessories	801	(9)
Unit 3 Package Unit Conditioned Air Control Systems	810	(5)
Unit 4 Troubleshooting Refrigeration Systems	815	(20)
18 Commercial Refrigeration	835	(68)
Unit 1 Refrigeration systems	835	(18)
Unit 2 Refrigeration Equipment	853	(7)
Unit 3 Special Components	860	(9)
Unit 4 Restaurant and Supermarket Equipment	869	(23)
Unit 5 Food Preservation	892	(11)
19 Central Plant Hydronis systems	903	(68)
Unit 1 Air Handling Units	903	(18)
Unit 2 Water Chillers	921	(10)
Unit 3 Hydronis Heating	931	(14)
Unit 4 Boilers and Related Equipment	945	(8)
Unit 5 Cooling Towers	953	(11)
Unit 6 Thermal Storage Systems	964	(7)
SECTION VII Unitary Systems	971	(22)
20 Appliances	972	(21)
Unit 1 Space Heaters	972	(9)
Unit 2 Special Refrigeration Applications	981	(12)
SECTION VIII Employment Skills	993	(34)
21 Job Skills	994	(33)
Unit 1 Installation Techniques	994	(12)
Unit 2 Planned Maintenance	1006	(11)
Unit 3 Being a Professional HVAC/R Technician	1017
Appendices
Temperature Conversions	1027	(2)
Properties of Refrigerants	1029	(31)
Commonly Used HVAC/R Formulas	1060	(4)
Tables and Figures with Useful HVAGR Data	1064	(3)
English Language Glossary	1067	(15)
Spanish Language Glossary	1082	(19)
Index	1101

Excerpts

The refrigeration and air conditioning industry today presents a continually growing and changing series of opportunities for skilled technicians. Despite economic ups and downs, there is always a positive job outlook in the HVAC/R market. Because of new technologies and steady growth, the demand for technicians grows ever greater. In addition, our health and comfort depend on new developments in the refrigeration, air conditioning, ventilation, and heating fields. Refrigeration and Air Conditioning: An Introduction to HVAC/R, Fourth Edition,is an excellent resource for beginners and apprentices to start and pursue a pleasant and profitable career in the HVAC/R field. Refrigeration, air conditioning, ventilation, and heating have dramatically expanded in the variety of available equipment and applications. This text contains all the most recent information and the advances necessary to prepare the technician for today''s world. It incorporates the latest technical changes and EPA rulings, covers the newer refrigerants, and provides current information on the recovery, reclaiming, and recycling of refrigerants. It also contains basic information on the many certification exams. Material is presented in an easily understood format intended for use in HVAC/R, classes in high schools, technical schools, and community colleges, or for those just wanting current information. This book will give students a solid foundation for success in the HVAC/R trades and serve as a great reference source for technicians in the field. A thorough study of this book in a classroom setting will help students prepare for the many career opportunities in HVACIR,, from installation and servicing to maintaining air conditioning and refrigeration equipment. The extensive descriptions of equipment and supplies with in-depth explanations of their operation and function will familiarize students with the tools of the trade. The text also discusses occupational opportunities in the field and explains the training required. Students preparing for a career in HVAC/R will need not only technical skills, but also need to be able to follow written and verbal instructions, work with or without supervision, read and interpret diagrams and formulas, work well with tools and equipment, communicate effectively both verbally and in writing, be alert to possible problems and safety issues, and be able to keep up with the latest HVAC/R, technologies. This book addresses all of these requirements. ORGANIZATION OF THIS TEXT The chapters are logically organized into sections that include: Fundamentals(Introduction; Tools, Meters, and Measuring Devices; HVAC/R, Practices) Refrigeration Principles(Principles of Matter and Thermodynamics; Air Conditioning and Refrigeration System Components; Refrigerants) Electricity(Basic Electricity; Electrical Diagrams and Controls) Residential Systems(Central Residential Air Conditioning; Central Residential Gas Warm Air Heating; Central Residential Oil Warm Air Heating; Central Residential Electric Warm Air Heating; Central Residential Heat Pump Systems) Indoor Air Systems(Air Distribution; Indoor Air Quality; Load Calculation) Commercial Systems(Packaged Heating/ Cooling Systems; Commercial Refrigeration; Central Plant Hydronic Systems) Unitary Systems(Appliances) Employment Skills(Job Skills) Appendices(Temperature Conversions; Properties of Refrigerants; Commonly Used HVAC/R Formulas; and Tables and Figures with Useful HVAC/R Data) At the beginning of each chapter is a list of objectives. These objectives identify the topics covered and goals to be achieved in the chapter. All the chapters contain boxed features on Tech Tips, Service Tips, Safety Warnings, Tech Talk,and facts that are just Nice to Know.All chapters end with review questions to determine how well the student is learning the material. There are many tables that contain technical data and troubleshooting information throughout the book. These tables contain information that will help the reader diagnose and repair common problems. A list of these helpful tables is provided in Appendix D so they can be easily referenced once you have finished your studies of this book. Color is used extensively in this edition to enhance understanding and highlight important information. Hundreds of bright and clear color photographs help students grasp the subject material. Finally, both English- and Spanish-Language glossaries are provided at the end of the book. ANCILLARY MATERIALS Student CD with full motion animations of many of the basic HVAC/R concepts. A comprehensive instructor package is available free when the text is adopted for classroom use from Prentice Hall (call 1-800-526-0485 or visit online at www.prenhall.com). This instructor package includes the following: PowerPointpresentation on topics covered in the text. Instructor CD with suggested student activities, a test bank, photo library with hundreds of digital color photos, as well as many other useful elements for the classroom. Answers to all questions in the textbook. Computerized test generator.