Hey Tim! My setup is simpler than yours. I have a Pentair IntelliFlo VS pump, IntelliChlor SCG, MasterTemp heater, GloBrite lights. Pump and SCG connected to IntelliConnect over RS-485. Heater on the heater connection. Lights on Relay 2.
For your system, I think you would be happiest with a minimum of EasyTouch. Or, if you had an IntelliFlo pump (which has RS-485) instead of SuperFlow, you would probably be set.
RS-485 is a shared bus. So your IntelliCenter and SolarTouch could both communicate with an IntellFlo simultaneously. But with the SuperFlow, using multiple dry contact relays for control, only one device can control the pump and its speeds.
If I had to guess, you were setting the IntelliChem relay on the IntelliCenter as “flow dependent”. Because the IntelliCenter didn’t control the pump, it didn’t know when there was flow. But the IntelliChlor does fire off warnings when there is no flow over RS-485, and that probably sent the IntelliCenter into a “no flow” state, and turned off your relay. But that’s just conjecture on my part. Your install really isn’t “supported” by IntelliConnect because your pump requires SolarTouch control.
If you want to talk about this more PM me.