<p>This week on Commercial Kitchen Chronicles, we’re joined by Thomas Lisaula, better known as OEM Junkie, to break down the REAL world of supermarket refrigeration—and why rack systems will humble you fast.</p><p>If you think refrigeration is just “bigger HVAC”… this episode is going to reset your expectations.</p><p>Thomas works in high-demand environments where uptime is critical, specializing in rack systems, store-level HVAC, and EMS platforms like Emerson and Danfoss. From diagnostics under pressure to navigating complex systems, this conversation is packed with real-world insight you won’t get from a textbook.</p><p>We dig into:<br>• The reality of rack refrigeration vs what most techs expect<br>• How EMS and controls actually impact troubleshooting<br>• The pressure of working on systems where downtime isn’t an option<br>• Common mistakes techs make early in refrigeration<br>• Transitioning from HVAC into supermarket refrigeration<br>• Developing a strong troubleshooting mindset in the field</p><p>We also get into Thomas’s personal journey—how he got started, what challenged him early on, and what it really takes to grow in one of the toughest sides of the trade.</p><p>If you’re a technician looking to level up, or you’ve ever thought about getting into rack refrigeration, this is one you don’t want to miss.</p><p>If you’re working in commercial kitchens, you already know—grease gets everywhere, especially on coils. That’s where Viper coil cleaners from Refrigeration Technologies come in. Their non-corrosive, technician-safe formulas are built to cut through heavy buildup without damaging the equipment you’re trying to protect. No harsh acids, no unnecessary risk—just effective cleaning that keeps systems running the way they should. If you’re servicing restaurant equipment, make sure Viper is on your truck.</p><p><br></p><p><a href="https://www.refrigtech.com/" target="_blank" rel="noopener noreferer">https://www.refrigtech.com/</a></p><p>Make sure to like, comment, and subscribe for more real-world conversations from the field. Drop a comment below—have you worked on rack systems yet, or are you looking to make the jump?</p><p><br></p><p>Thomas</p><p><a href="https://www.tiktok.com/@oem_junkie" target="_blank" rel="noopener noreferer">https://www.tiktok.com/@oem_junkie</a></p><p><a href="https://www.youtube.com/@oem_junkie" target="_blank" rel="noopener noreferer">https://www.youtube.com/@oem_junkie</a></p><p><br></p><p>👉 More CKC content lives here: <a href="" target="_new" rel="noopener">www.commercialkitchenchronicles.com</a></p><p><br></p><p>#HVACR #Refrigeration #RackRefrigeration #OEMJunkie #CommercialRefrigeration #EMS #HVACTech #SupermarketRefrigeration</p>