Refrigeration & Air Conditioning Technology, 8e - xiii

PrefACe

R

efrigeration & Air Conditioning Technology is designed and written for students in
vocational-technical schools and colleges, community colleges, and apprenticeship programs. The content is in a format appropriate for students who are attending classes
full-time while preparing for their first job, for students attending classes part-time while
preparing for a career change, or for those working in the field who want to increase their
knowledge and skills. Emphasis throughout the text is placed on the practical applications
of the knowledge and skills technicians need to be productive in the refrigeration and airconditioning industry. The contents of this book can be used as a study guide to prepare
for the Environmental Protection Agency (EPA) mandatory technician certification examinations. It can be used in the HVAC/R field or closely related fields by students, technicians,
installers, contractor employees, service personnel, and owners of businesses.
This text is also an excellent study guide for the Industry Competency Exam (ICE), the
North American Technician Excellence (NATE), the HVAC Excellence, the Refrigeration
Service Engineers Society (RSES), the United Association (UA) STAR certification, and the
Heating, Air Conditioning, and Refrigeration Distributors International (HARDI) voluntary
HVAC/R technician certification and home-study examinations.
The book is also written to correspond to the National Skill Standards for HVAC/R
technicians. Previous editions of this text are often carried to the job site by technicians and
used as a reference for service procedures. "Do-it-yourselfers" will find this text valuable for
understanding and maintaining heating and cooling systems.
As general technology has evolved, so has the refrigeration and air-conditioning industry. A greater emphasis is placed on digital electronic controls and system efficiency. At the
time of this writing, every central split cooling system manufactured in the United States
today must have a Seasonal Energy Efficiency Ratio (SEER) rating of at least 13. This energy
requirement was mandated by federal law as of January 23, 2006. SEER is calculated on the
basis of the total amount of cooling (in Btus) the system will provide over the entire season,
divided by the total number watt-hours it will consume. Higher SEER ratings reflect a more
efficient cooling system. Air-conditioning and refrigeration technicians are responsible for
following procedures to protect our environment, particularly with regard to the handling
of refrigerants. Technician certification has become increasingly important in the industry.
Global warming has become a major environmental issue. When HVAC/R systems are
working correctly and efficiently, they will greatly reduce energy consumption and greenhouse gases. Organizations like the Green Mechanical Council (GreenMech) are advocates
for the HVAC/R industry and assist the industry in meeting with government, educational,
industry, and labor interests to find solutions to the world's global-warming problem. GreenMech has created a scoring system designed to help engineers, contractors, and consumers
know the "green value" of each mechanical installation. The "green value" encompasses the
system's energy efficiency, pollution output, and sustainability. Realtors, building inspectors,
builders, and planning and zoning officials will now have some knowledge about and guidance on how buildings and mechanical systems are performing. Green buildings and green
mechanical systems are becoming increasingly popular in today's world as a way to curb
global warming.
Energy audits have become an integral part of evaluating and assessing an existing building's energy performance. Higher efficiency standards for the energy performance of new
buildings have been established. Higher levels of training and certification have been developed for HVAC/R technicians to meet the needs of more sophisticated, energy-efficient buildings and HVAC/R equipment.

xiii



Refrigeration & Air Conditioning Technology, 8e

Table of Contents for the Digital Edition of Refrigeration & Air Conditioning Technology, 8e

Contents
Refrigeration & Air Conditioning Technology, 8e - Cover1
Refrigeration & Air Conditioning Technology, 8e - Cover2
Refrigeration & Air Conditioning Technology, 8e - i
Refrigeration & Air Conditioning Technology, 8e - ii
Refrigeration & Air Conditioning Technology, 8e - iii
Refrigeration & Air Conditioning Technology, 8e - Contents
Refrigeration & Air Conditioning Technology, 8e - v
Refrigeration & Air Conditioning Technology, 8e - vi
Refrigeration & Air Conditioning Technology, 8e - vii
Refrigeration & Air Conditioning Technology, 8e - viii
Refrigeration & Air Conditioning Technology, 8e - ix
Refrigeration & Air Conditioning Technology, 8e - x
Refrigeration & Air Conditioning Technology, 8e - xi
Refrigeration & Air Conditioning Technology, 8e - xii
Refrigeration & Air Conditioning Technology, 8e - xiii
Refrigeration & Air Conditioning Technology, 8e - xiv
Refrigeration & Air Conditioning Technology, 8e - xv
Refrigeration & Air Conditioning Technology, 8e - xvi
Refrigeration & Air Conditioning Technology, 8e - xvii
Refrigeration & Air Conditioning Technology, 8e - xviii
Refrigeration & Air Conditioning Technology, 8e - xix
Refrigeration & Air Conditioning Technology, 8e - xx
Refrigeration & Air Conditioning Technology, 8e - xxi
Refrigeration & Air Conditioning Technology, 8e - xxii
Refrigeration & Air Conditioning Technology, 8e - xxiii
Refrigeration & Air Conditioning Technology, 8e - xxiv
Refrigeration & Air Conditioning Technology, 8e - 1
Refrigeration & Air Conditioning Technology, 8e - 2
Refrigeration & Air Conditioning Technology, 8e - 3
Refrigeration & Air Conditioning Technology, 8e - 4
Refrigeration & Air Conditioning Technology, 8e - 5
Refrigeration & Air Conditioning Technology, 8e - 6
Refrigeration & Air Conditioning Technology, 8e - 7
Refrigeration & Air Conditioning Technology, 8e - 8
Refrigeration & Air Conditioning Technology, 8e - 9
Refrigeration & Air Conditioning Technology, 8e - 10
Refrigeration & Air Conditioning Technology, 8e - 11
Refrigeration & Air Conditioning Technology, 8e - 12
Refrigeration & Air Conditioning Technology, 8e - 13
Refrigeration & Air Conditioning Technology, 8e - 14
Refrigeration & Air Conditioning Technology, 8e - 15
Refrigeration & Air Conditioning Technology, 8e - 16
Refrigeration & Air Conditioning Technology, 8e - 17
Refrigeration & Air Conditioning Technology, 8e - 18
Refrigeration & Air Conditioning Technology, 8e - 19
Refrigeration & Air Conditioning Technology, 8e - 20
Refrigeration & Air Conditioning Technology, 8e - 21
Refrigeration & Air Conditioning Technology, 8e - 22
Refrigeration & Air Conditioning Technology, 8e - 23
Refrigeration & Air Conditioning Technology, 8e - 24
Refrigeration & Air Conditioning Technology, 8e - 25
Refrigeration & Air Conditioning Technology, 8e - 26
Refrigeration & Air Conditioning Technology, 8e - 27
Refrigeration & Air Conditioning Technology, 8e - 28
Refrigeration & Air Conditioning Technology, 8e - 29
Refrigeration & Air Conditioning Technology, 8e - 30
Refrigeration & Air Conditioning Technology, 8e - 31
Refrigeration & Air Conditioning Technology, 8e - 32
Refrigeration & Air Conditioning Technology, 8e - 33
Refrigeration & Air Conditioning Technology, 8e - 34
Refrigeration & Air Conditioning Technology, 8e - 35
Refrigeration & Air Conditioning Technology, 8e - 36
Refrigeration & Air Conditioning Technology, 8e - 37
Refrigeration & Air Conditioning Technology, 8e - 38
Refrigeration & Air Conditioning Technology, 8e - 39
Refrigeration & Air Conditioning Technology, 8e - 40
Refrigeration & Air Conditioning Technology, 8e - 41
Refrigeration & Air Conditioning Technology, 8e - 42
Refrigeration & Air Conditioning Technology, 8e - 43
Refrigeration & Air Conditioning Technology, 8e - 44
Refrigeration & Air Conditioning Technology, 8e - 45
Refrigeration & Air Conditioning Technology, 8e - 46
Refrigeration & Air Conditioning Technology, 8e - 47
Refrigeration & Air Conditioning Technology, 8e - 48
Refrigeration & Air Conditioning Technology, 8e - 49
Refrigeration & Air Conditioning Technology, 8e - 50
Refrigeration & Air Conditioning Technology, 8e - 51
Refrigeration & Air Conditioning Technology, 8e - 52
Refrigeration & Air Conditioning Technology, 8e - 53
Refrigeration & Air Conditioning Technology, 8e - 54
Refrigeration & Air Conditioning Technology, 8e - 55
Refrigeration & Air Conditioning Technology, 8e - 56
Refrigeration & Air Conditioning Technology, 8e - 57
Refrigeration & Air Conditioning Technology, 8e - 58
Refrigeration & Air Conditioning Technology, 8e - 59
Refrigeration & Air Conditioning Technology, 8e - 60
Refrigeration & Air Conditioning Technology, 8e - 61
Refrigeration & Air Conditioning Technology, 8e - 62
Refrigeration & Air Conditioning Technology, 8e - 63
Refrigeration & Air Conditioning Technology, 8e - 64
Refrigeration & Air Conditioning Technology, 8e - 65
Refrigeration & Air Conditioning Technology, 8e - 66
Refrigeration & Air Conditioning Technology, 8e - 67
Refrigeration & Air Conditioning Technology, 8e - 68
Refrigeration & Air Conditioning Technology, 8e - 69
Refrigeration & Air Conditioning Technology, 8e - 70
Refrigeration & Air Conditioning Technology, 8e - 71
Refrigeration & Air Conditioning Technology, 8e - 72
Refrigeration & Air Conditioning Technology, 8e - 73
Refrigeration & Air Conditioning Technology, 8e - 74
Refrigeration & Air Conditioning Technology, 8e - 75
Refrigeration & Air Conditioning Technology, 8e - 76
Refrigeration & Air Conditioning Technology, 8e - 77
Refrigeration & Air Conditioning Technology, 8e - 78
Refrigeration & Air Conditioning Technology, 8e - 79
Refrigeration & Air Conditioning Technology, 8e - 80
Refrigeration & Air Conditioning Technology, 8e - 81
Refrigeration & Air Conditioning Technology, 8e - 82
Refrigeration & Air Conditioning Technology, 8e - 83
Refrigeration & Air Conditioning Technology, 8e - Cover4
http://www.nxtbook.com/nxtbooks/ngsp/autoservice5e
http://www.nxtbook.com/nxtbooks/ngsp/bodystructures13e
http://www.nxtbook.com/nxtbooks/ngsp/refrigerationactech8e
http://www.nxtbook.com/nxtbooks/ngsp/medterminology8e
http://www.nxtbook.com/nxtbooks/ngsp/naturalresources6e
http://www.nxtbook.com/nxtbooks/ngsp/heavydutytruck6e
http://www.nxtbook.com/nxtbooks/ngsp/sportsmedicine2017
http://www.nxtbook.com/nxtbooks/ngsp/agriculturalmechanics
http://www.nxtbook.com/nxtbooks/ngsp/introductoryhorticulture
http://www.nxtbook.com/nxtbooks/ngsp/basicrobotics
http://www.nxtbook.com/nxtbooks/ngsp/weldingprinciplesandapplications
http://www.nxtbook.com/nxtbooks/ngsp/delmars_electricity
http://www.nxtbook.com/nxtbooks/ngsp/modernlivestock_poultryproduction2016
http://www.nxtbook.com/nxtbooks/ngsp/introtoveterinaryscience_2016thirdedition
http://www.nxtbook.com/nxtbooks/ngsp/wildlifeandnaturalresourcemanagement_2016fourthedition
http://www.nxtbook.com/nxtbooks/ngsp/smallanimalcare_management_2016fourthedition
http://www.nxtbook.com/nxtbooks/ngsp/msoffice365_2016intro_illustrated
http://www.nxtbook.com/nxtbooks/ngsp/msoffice365_2016intermediate_illustrated
http://www.nxtbook.com/nxtbooks/ngsp/msoffice365_2016intermediate
http://www.nxtbook.com/nxtbooks/ngsp/msoffice365_2016intro
http://www.nxtbook.com/nxtbooks/ngsp/century21_10e
http://www.nxtbook.com/nxtbooks/ngsp/agriscience6
http://www.nxtbook.com/nxtbooks/ngsp/microsoftoffice2013_first
http://www.nxtbook.com/nxtbooks/ngsp/automotivetech6
http://www.nxtbook.com/nxtbooks/ngsp/dreamweaver_revealed
http://www.nxtbook.com/nxtbooks/ngsp/microsoftoffice2013_intro
http://www.nxtbookMEDIA.com