GGrabeel, TVo
Topped off the chillers and started them back up this afternoon. They immediately faulted out, due to a set-point error. I set them to run in manual while I checked for leaks, there were no apparent leaks. TVo found the problem in EPICS where an integrator on a control loop was causing the set point to steadily increase (It was up to about 500,000 degrees Celsius I think). After turning off some inputs and filters we were able to get the more reasonable value of 21 degrees Celsius. The chillers will continue to run and be re-checked tomorrow.