Episode 385. Case Controllers 101 with Andrew Freeburg
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Episode 385. Case Controllers 101 with Andrew Freeburg
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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