The Refrigeration Mentor Podcast
The Refrigeration Mentor Podcast

The Refrigeration Mentor Podcast

Trevor Matthews

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This podcast is all about training, education and mentorship for commercial refrigeration and HVAC professionals. My goal to help you develop your knowledge and skills, to master the art of refrigeration. I will have expert guests from around the world joining us. We will have different conversations on technical topic's like system troubleshooting, supermarket refrigeration and CO2 refrigeration. Featuring technicians and engineers to manufacturers and many other industry expert join us to share their knowledge and wisdom. I will have conversations about mental health, mindset, and personal and professional development. My goal is to help you become 1% better than yesterday. Let's get a conversation going!

Recent Episodes

Episode 358. Trend Graphs and CO2 System Troubleshooting with Andrew Freeburg and Erik Holland
DEC 8, 2025
Episode 358. Trend Graphs and CO2 System Troubleshooting with Andrew Freeburg and Erik Holland
Join the Refrigeration Mentor Hub here Learn more about Refrigeration Mentor Customized Technical Training Programs at www.refrigerationmentor.com/courses This episode is another of our "Morning Coffee" sessions with longtime refrigeration professionals Andrew Freeburg and Erik Holland, diving deep into trend graphs and CO2 refrigeration system troubleshooting. We cover understanding and reading trend graphs, practical tips for locating and analyzing system inefficiencies, and the procedures for fine-tuning refrigeration systems. We also discuss gas coolers, the impact of ambient temperature on system performance, and effective strategies for maintaining system stability in cold climates. Interested in joining the next Morning Coffee live? Join our FREE Refrigeration Mentor Community today. In this episode, we cover: -Understanding trend graphs -Comparing graphs on E2 systems -Trend graph analysis -Graphing techniques on E2 systems -Analyzing CO2 system graphs -System fine-tuning -Creating work and building credibility -Advanced graph analysis and troubleshooting -High pressure valve and bypass valve correlation -Gas cooler and system stability -System oscillations and expansion valves -Gas cooler maintenance -High pressure valve control -Fan control strategies -Troubleshooting fan and gas cooler issues -Winter challenges in CO2 systems -Heat reclaim and system efficiency Helpful Links and Resources: Episode 287. CO2 Experts: Using Trend Graphs to Troubleshoot CO2 Systems with Andrew Freeburg Episode 144. Troubleshooting CO2 High Pressure Valves Using Trend Graphs with the CAREL Boss System Episode 350. Supermarket Refrigeration Tips and Tricks with Robert Ochs
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58 MIN