I've finally got my rig up and running, it's a 10 gal 240V system, currently RIMS but will be switching to HERMS. It was originally built by someone else for BrewTroller, but I switched to Brucontrol (zero regrets there). I'm running Brucontrol on a Mac with VirtualBox, it's working nicely.

I cannot figure out how to tune the PID algorithms. I've read all the background material, I've tried quite a range of values, and the system seems to consistently settle 30F above my target. 

Here's the rig:

https://drive.google.com/open?id=1smEciGHnDBX_WPhw9Xi4CCETHxG0OqnC

Here's the latest RIMS PID config:

https://drive.google.com/open?id=1-LV7fPDONDyiPtLP2NT67arNTUFknKv1

And here is the result:

https://drive.google.com/open?id=1_hGeXg5_ztUmLC8-liflXA_u7adkLV2l

Any thoughts would be appreciated.

- Gregg