iii
• All photographs and illustrations throughout the
book have been revised and updated to reflect
today’s standards and practices.
• This new edition presents strong emphasis on
“green” and environmental-related content. Thinking
Green notes appear throughout the book. A three-
chapter Energy Management and Conservation section
is included.
Designed to make learning easier. A major focus
of this edition is making the book the most effective
learning tool for students training for HVACR careers.
The following are some of the changes that will
help you more easily understand the concepts being
presented:
• Following the suggestion of reviewers who have
previously used Modern Refrigeration and Air
Conditioning this 19th edition has a complete
reorganization of chapters. The content follows a
logical progression for sequential, building-block
learning.
• Extensive preview components are featured at
the beginning of chapters to better prepare you to
learn the new content.
• The authors have completely revised the text to
make it easier to read and comprehend.
• The graphic design of the pages and illustrations
is greatly improved and enhanced to make the
content more engaging.
Focused on preparing HVACR technicians.
A major focus of this 19th edition is increasing the
emphasis on technician-level skills. The following are
some of the changes that benefit students preparing for
careers as HVACR technicians:
• Strong emphasis on service and troubleshooting
throughout the book.
• Over 100 easy to follow, step-by-step procedures.
• New Safety Note, Caution, Pro Tip, and Code Alert
features provide content specific to hands-on
tasks and in-the-field situations.
Basic Refrigeration System
Every refrigeration system contains four basic com-
ponents—a compressor, a condenser, a metering device,
Introduction
Modern Refrigeration and Air Conditioning
provides everything you need to learn and know
for an exciting and rewarding career in the Heating,
Ventilation, Air Conditioning, and Refrigeration
(HVACR) profession. Modern Refrigeration and Air
Conditioning delivers a comprehensive and authori-
tative course on the basic and advanced principles of
refrigeration and air conditioning. This book supplies
the foundation on which a solid, thorough knowl-
edge of refrigeration and air conditioning is based.
It also contains excellent instruction and training in
the skills and techniques essential for servicing and
troubleshooting.
The HVACR profession is unique among the
skilled trades. HVACR technicians combine their elec-
trical, plumbing, and construction knowledge and
skills to install, troubleshoot, and service systems.
Your choice to become an HVACR professional will
require that you learn about many concepts—from
basic heat movement (thermodynamics) to trouble-
shooting microprocessor-based control systems.
Beginners and apprentices will find Modern
Refrigeration and Air Conditioning an excellent
guide for starting and pursuing a rewarding and prof-
itable career. Experienced service technicians will find
this book to be a valuable source of up-to-date infor-
mation as well as a valuable reference in the profession.
New for This Edition
Updated content. The content of Modern
Refrigeration and Air Conditioning has been com-
pletely revised:
• Content and coverage reflect the latest HVACR
practices and regulations.