What Do You Want To Do Tonight Brain, Play With Carel And A Power Outage Episode 540 Audio

What Do You Want To Do Tonight Brain, Play With Carel And A Power Outage Episode 540

Target Box Misery, Flooding Charge Math, and CO₂ Controller Menus That Hate You | Advanced Refrigeration Podcast

Brett Wetzel and Kevin Compass open the Advanced Refrigeration Podcast by venting about end-of-life Target “boxes,” including finding multiple units with low-pressure switches installed on the wrong side of service valves, creating dangerous no-cutout scenarios. Brett describes building and testing a custom flooding-charge calculator using condenser data and discusses oversized condensing units and winter operation while running some quick Bitzer/Copeland-style math for a low-temp R449A freezer. The conversation shifts to CO₂ systems and a Corel compressor controller walkthrough, covering passwords, “mask number” navigation used by tech support, alarm configuration, compressor enable/disable, start types (direct, part-winding, star-delta), equalization valves, device rotation logic, VFD/inverter settings, and transcritical controls for the high-pressure valve and receiver/BGV parameters, including pre-positioning, proportional/integral behavior, and safety limits.