Sporlan S3C, Comm Loops, Fireman's Dump Line, Brett's Retiring, and Noodling Episode 528 Audio

Sporlan S3C, Comm Loops, Fireman's Dump Line, Brett's Retiring, and Noodling Episode 528

Fishing Fails, Target Startup Nightmares & Chicago Fireman’s Dump Lines | Advanced Refrigeration Podcast

Brett Wetzel and Kevin Compass open with fishing stories and then jump into a rough Target CO2 startup plagued by miswired comm loops, mixed case-control hardware, and constant walking in a multi-level downtown layout. They discuss troubleshooting methods for crisscrossed MODbus wiring, common causes of shorts and opens, and an electrician mistake that blew an XM controller apart. The hosts explain Chicago’s “fireman’s dump line” code requirement and how piping it off the bottom of a suction header can trap oil and cause recurring low-oil issues. They also flag a backwards high-pressure control/relay setup on a Target backup CO2 unit, share practical tips for S3C/Corelink/CC200 case controllers, Ethernet jumpers, termination, protecting solid-state outputs, transducer orientation, and water-damaged controllers from case washing.