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In this episode, we're breaking down key CO2 piping and installation practices. We cover essentials like correct trapping, suction line slope, proper hanger spacing and planning for expansion on long runs. We also discuss pipe material selection, brazing technique and purging, pressure testing requirements, and installation details across commercial and industrial applications.

In this episode, we cover:

(00:43) Why Piping in Refrigeration Matters

(02:12) Purging and Brazing Lessons

(03:49) CO2 vs HFC Piping Differences

(06:39) Traps Slopes and Supports

(10:58) Velocity Layout and Expansion

(12:45) Piping Material Codes and Alloys

(16:55) Pressure Testing and Compliance

(18:48) Oil Return Over Pressure Drop

(25:17) Piping Insulation Specs and Questions

Helpful Links & Resources:

Episode 74. Why Understanding Refrigeration Piping Design Is Critical

Episode 20. Refrigeration Piping...Who Knew

Episode 317. CO2 Piping Design (Tips to Protect Compressors and Prevent Failures) with Chris Griffiths

Learn more about Refrigeration Mentor Customized Technical Training Programs at www.refrigerationmentor.com/courses

Join the Refrigeration Mentor Hub here

In this conversation, we're talking supermarket case controllers with longtime refrigeration technician and Refrigeration Mentor Community Ambassador Andrew Freeburg. We cover why they're becoming more common (especially with CO2), and how they compare across brands like Danfoss, Copeland, CAREL, RDM and others. We also break down what case controllers do - running the case by controlling lights, fans, defrost, and electronic expansion valves - along with basic checks and troubleshooting tips to help refrigeration techs be more efficient and confident on service calls.

In this episode, we discuss:

(02:49) What Refrigeration Case Controllers Do

(04:09) Remote Access

(05:16) Key Case Controller Sensors and Relays

(07:25) Electronic Valve Types

(08:29 Sensor Verification

(10:00) Programming and Manuals

(14:17) Fine Tuning Case Controllers

Helpful Links & Resources:

Episode 257. CO2 Experts Live: Case Controllers with Kevin Mullis

Episode 261. Supermarket Case Controller Troubleshooting Tips

Episode 282. Danfoss CO2 Controllers with Dave Yoder

Learn more about Refrigeration Mentor Customized Technical Training Programs at www.refrigerationmentor.com/courses

Join the Refrigeration Mentor Hub here

In this conversation, we're joined by Refrigeration Mentor Community Ambassador Andrew Freeberg to discuss why we entered the refrigeration trade. On top of the strong pay potential, we uncover what we truly enjoy about the industry, including the daily variety, challenges, problem solving, helping customers and common misconceptions about on-call and working conditions. We also break down why many supermarket refrigeration technicians feel stuck second-guessing on jobs, which drives callbacks, stress, and constant support calls. This is an inspiring conversation for anyone considering getting into supermarket refrigeration or new techs looking to explore the sky high potential of the refrigeration industry.

In this episode, we discuss:

(03:14) Realities of On-Calls as a Tradesperson

(04:43) Payoff and Lifestyle of a Refrigeration Technician

(05:15) Why the Work Stays Fun

(06:29) Top Advantages of the Refrigeration Trade

(07:19) Advice for New Students

(08:16) Refrigeration Wages and Career Math

(10:33) Overtime

(12:12) Travel Anywhere With Skills

(15:47) Skills That Will Change Your Life

(19:24) Recruiting the Next Generation of Tradespeople

(21:34) Second Career Ageism

(25:03) Why Refrigeration Matters

(29:30) Trade School vs College

(30:56) Different Career Avenues in Refrigeration

Helpful Links & Resources:

Episode 333. Training and Troubleshooting Tips to Level Up Your Career

Episode 274. The Biggest Key To Career Success in Refrigeration

Episode 256. Career Tips for New Technicians