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Commercial Refrigeration for Air Conditioning Technicians 3rd Edition

Dick Wirz

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Each MindTap product offers the full, mobile-ready textbook combined with superior and proven learning tools at one affordable price. Students who purchase digital access can add a print option at any time when a print option is available for their course.

This Cengage solution can be seamlessly integrated into most Learning Management Systems (Blackboard, Brightspace by D2L, Canvas, Moodle, and more) but does require a different ISBN for access codes. Please work with your Cengage Learning Consultant to ensure the proper course set up and ordering information. For additional information, please visit the LMS Integration site.

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  • ISBN-13: 9781305506435
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Now in its third edition, the ever-popular COMMERCIAL REFRIGERATION FOR AIR CONDITIONING TECHNICIANS helps HVAC professionals apply existing skills to new concepts in order to service medium and low-temperature refrigeration equipment such as walk-ins, reach-ins, refrigerated cases, and ice machines. Chapters emphasize refrigeration in the food service industry, offering practical tips from the author and other seasoned pros on installing, servicing, and troubleshooting commercial equipment. Freshly updated throughout, the third edition adds more than 150 new illustrations, pictures, and diagrams—including a step-by-step flowchart for quickly diagnosing and addressing the nine most common refrigeration problems on the job—as well as six new sections on the latest advancements in commercial refrigeration. A handy resource to keep in any truck or shop, COMMERCIAL REFRIGERATION FOR AIR CONDITIONING TECHNICIANS, 3rd Edition, is an indispensable tool for any technician working with commercial refrigeration today.

Dick Wirz, President of Refrigeration Training Services, LLC

Dick Wirz is a Master Electrician and Master HVACR Mechanic in the states of Virginia and Maryland, as well as Washington, DC. A NATE-certified technician with more than four decades of professional experience, Dick owned and operated a successful commercial refrigeration company for 25 years and taught HVACR at a community college for another 15 years. Now semi-retired, Dick produces HVACR instructor aids in the form of animated slideshows under the name of Refrigeration Training Services at

MindTap® is the digital learning solution that powers students from memorization to mastery. It gives you complete control of your course—to provide engaging content, to challenge every individual, and to build their confidence. Empower students to accelerate their progress with MindTap.

  • Cool Visuals. Abundant diagrams, photos, and illustrations help readers "see" concepts more clearly as they work through complex technical processes.
  • Coordinating Slides: FREE for instructors who adopt the 3rd Edition, Instructor Resources include animated PowerPoint® presentations that coordinate with each chapter to streamline course planning and enhance the student experience.
  • Testing: Designed for your convenience, Instructor Resources include chapter quizzes, mid-term exams, a final exam, and a flexible test bank for constructing your own tests, complete with answers.
  • Step-by-Step Diagnostics: Chapter 7 delivers a comprehensive approach for identifying refrigeration problems, including a flowchart which illustrates the key readings to take and logical sequence to follow when diagnosing nine of the most common issues.
  • High Esteem: Recognized as the number one book on commercial refrigeration by instructors and field technicians, the third edition is a practical resource that makes problem-solving easy in both workplace and classroom settings.
  • Tech Friendly: Conversational and fun, chapters deliver refrigeration concepts in an easy-to-understand tone and alongside practical applications.
  • Helpful Troubleshooting: "Rules of Thumb" throughout the readings help technicians diagnose common service problems and prepare technicians for those times when factory recommendations and specifications are not readily available.

Commercial Refrigeration for Air Conditioning Technicians


1. Refrigeration.
2. Evaporators.
3. Condensers.
4. Compressors.
5. Metering Devices.
6. Controls and Accessories.
7. Refrigeration System Troubleshooting.
8. Compressor Motor Controls.
9. Retrofitting, Recovery, Evacuation, and Charging.
10. Supermarket Refrigeration.
11. Walk-in Refrigerators and Freezers.
12. Ice Machines.
13. Product Temperatures for Preservation and Health.
14. Refrigeration Business Tips.
Appendix A: Summary of T.R.O.T.
Appendix B: Pressure Temperature (P/T) Chart.
Appendix C: Troubleshooting Charts.

Cengage provides a range of supplements that are updated in coordination with the main title selection. For more information about these supplements, contact your Learning Consultant.


Instructor's Companion Website

ISBN: 9781305506466
Everything you need for your course in one place! This collection of book-coordinated lecture and class tools is available online via the instructor resource center at You'll be able to access and download a number of helpful materials such as the instructor’s manual, PowerPoint® presentations, images, videos, and more.