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© 2008 Heatcraft Refrigeration Products LLC
www.thecoldstandard.com
www.coldyoucancounton.com
Commercial Refrigeration Parts
™
History of High Performance,
Innovation and Product Selection
Larkin has been the most trusted
brand of refrigeration products for
clean environments since 1928. With
its innovative products, it is uniquely
qualied to meet the needs of
foodservice applications as well as
mission critical applications such as
data centers.
www.interlinkparts.com
www.chandlerref.com
www.larkinproducts.com
Serving the Cold
Storage Industry with
Engineered Solutions
Chandler has been a
leading commercial refrigeration brand since 1933. Its
emphasis on partnership allows customers to give input
during the system design process, resulting in customized
solutions that are precisely engineered to order.
History of Leadership, Service
and Innovation
Bohn has been the
Supermarket Industry’s leading
brand of refrigeration products
since 1946. With an emphasis
on innovation and the
environment, Bohn is the clear
choice for meeting the demanding needs of this industry
both in the United States and globally.
History of Dependability,
Technical Support and
Product Choice
Climate Control is the
brand that revolutionized
convenience store refrigeration in the 1970’s. Its reputation
of dependability and products designed to reduce
installation and operation costs still make it the number one
choice of convenience store owners everywhere.
Right source. Right parts. Right now.
We are your link to a complete line of dependable and certied
commercial refrigeration parts, accessories and innovative electronic
controls. Dependable. Versatile. Courteous. Finally, one simple source
for all of your parts needs from a name you can trust.
®
Refrigeration Equipment References on the World Wide Web
Forward
This edition of Heatcraft Refrigeration Products LLC’s, Engineering
Manual covering Commercial Refrigeration Cooling and Freezing
Load Calculations has been prepared in the form of a condensed
text and reference book.
The theory and principle of modern refrigeration has been
omitted due to the many excellent publications currently available
on these subjects. The purpose of this reference book is to furnish
the engineering, selling and servicing organizations with accurate
and useful data to simplify load calculations.
No attempt has been made to specify a particular make of
equipment. We sincerely hope that our eorts will be a tangible
contribution to our rapidly growing industry.
Table of Contents
Job Survey 4
Refrigeration Load Calculations 4-6
Sample Calculations:
Above 32ºF. (0ºC.) 7-9
Sample Calculations:
Rooms Below 32ºF. (0ºC.) 10-12
Refrigeration Equipment Selection 21
Type of Operation and Air Flow 22
Derating Factors 22
General Guidelines 23
Unit Cooler Coil Placement 24
Sizing of Refrigerant Lines 25-32
Psychrometric Chart 37-39
Glossary of Refrigeration Terms 40
Quick Selection Guide 41
Rapid Load Calculator for Large Coolers & Freezers 43