Wednesday, May 2, 2012

Free Ebook Commercial Refrigeration for Air Conditioning Technicians Second Edition

This book is written for refrigeration technicians, air-conditioning (AC)  technicians,
and advanced AC students. Commercial refrigeration, as a speci c subject, is taught
in only about 10 percent of the schools that have HVACR programs. As a result,
there are very few AC students or technicians exposed to this related technology.
The industry certainly needs technicians trained in AC. However, if AC technicians also
understand commercial refrigeration, they will be more valuable to their companies and
their customers.

The first six of the fourteen chapters combine both a review of refrigeration theory
and an introduction to how those principles are applied speci cally to commercial
refrigeration equipment. Wherever possible, refrigeration concepts are compared with
those of AC. This makes it easier for HVACR students and technicians to relate what
they already know to the eld of commercial refrigeration.

Chapter 7 applies the information in the rst six chapters to the troubleshooting
of nine common refrigeration system problems. It also includes a diagnostic chart for
the reader to use in class, as well as on the job. Chapter 8 on motor controls also has
its share of troubleshooting instructions. The commercial refrigeration industry has
been at the forefront of developing retro tting practices for replacing chloro uoro-
carbon (CFC) and hydrochloro uorocarbon (HCFC) refrigerants. Therefore, Chapter 9
covers retro tting, along with the other related practices of recovery, evacuation, and

Chapter 10 is an introduction to the fascinating world of supermarket refrigeration.
Chapters 11 and 12 deal with walk-ins, reach-ins, and ice machines. Chapter 13 is a
relatively short but important look at the role of the refrigeration technician in food
preservation and health issues.

Because many HVACR technicians eventually start their own companies, the last
chapter in this book deals with the business side of this industry. Even if most
 students have no immediate intention of becoming self-employed, this chapter pro-
vides a glimpse of what their employers deal with on a daily basis. By gaining
these insights, technicians can become a more supportive and vital part of their


2 komentar:

link is dead. Pls uploat it again.

link is still alive, u can download it

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