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In this episode, I'm outlining five things refrigeration techs need to check before replacing a compressor to avoid an unnecessessary change out. Between 30-40% of swapped compressors are found to have no real issue, and these checks will help technicians uncover root-cause issues and potentially avoid costly and time-consuming work that might not be needed. This episode details the five checks: oil level and oil management, compressor superheat, electrical health, operating conditions, and controller/sensor accuracy. We also cover key readings and how to better understand failure modes and prevent repeat failures.

In this episode, we discuss:

(00:48) How to Avoid Replacing Good Compressors

(03:16) Check 1: Oil Management

(04:27) Check 2: Compressor Superheat

(06:13) Check 3: Electrical Health

(07:14) Check 4: Operating Conditions

(08:19) Check 5: Controllers and Sensors

(09:56) Inspecting a Failed Compressor

(12:14) Documentation and Preventing Repeated Failures

Helpful Links & Resources:

FREE GUIDE: System and Compressor Troubleshooting Guide

Episode 115: Understanding Compressors: What You Need To Know

Episode 329. The Ins & Outs of Compressors

Episode 388. Step-By-Step Compressor Change Out (Service Call Recap) with Andrew Freeburg

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

Join the Refrigeration Mentor Hub here

In this episode, we're joined by longtime refrigeration technician and Refrigeration Mentor Community Ambassador Andrew Freeburg to discuss World Refrigeration Day (June 26) and this year's theme, "Cool Intelligence." We explore how the industry's real intelligence comes from the experience, judgment, and problem-solving of technicians, engineers, designers, and operators who protect the cold chain, food safety, energy efficiency and daily life. Conversely, also dive into how artificial intelligence (AI) can support technicians today, working in conjunction with hands-on skills, verification, intuition, and building customer trust.

In this episode, we cover:

(00:08) World Refrigeration Day

(00:57) Defining "Cool Intelligence"

(02:21) Field Judgment Under Pressure

(05:36) Supermarket Refrigeration and Cold Chain

(11:46) AI in the Refrigeration Industry

(16:10) Building Confidence and Celebrating Wins

(18:27) The Refrigeration Industry Intelligence Gap

(28:30) Advice for New Refrigeration Techs

Helpful Links & Resources:

Andrew Freeburg on LinkedIn

Episode 374. Growing the Refrigeration Industry Globally with World Refrigeration Day Founder, Steve Gill

Episode 354. Embracing AI and Personal Development in Refrigeration

Episode 352. AI and New Refrigeration Training & Troubleshooting Resources

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

Join the Refrigeration Mentor Hub here

In this episode, we're discussing CO2 piping - particulatily liquid line. takeoff arrangements. We cover takeoff arrangements, loop systems, also some important technical information manufacturers recommend which give you a reliable blueprint of look for when you're on your service calls. We also talk about manufacturer specs, asking "why" behind designs and best practices when dealing with CO2 piping.

In this conversation, we cover:

(02:42) Loop and Circuit Designs

(03:59) Side vs Bottom Takeoff

(06:13) Flash Gas and Underfeeding

(08:37) Following Manufacturer Specs

(09:28) Piping Best Practices

(09:59) Asking Better "Why" Questions

Helpful Links & Resources:

VIDEO: The Truth About CO2 Oil Management, What Causes Failures and How to Prevent Them with Jonas Linnemann of Vitalis

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

Episode 386. CO2 Piping