J. Oberling, R. Short

With the PSL down for safety interlock work, Ryan and I have completed the annual PSL chiller swap.  There were no issues with the swap, the backup chiller started right up and has been running for over 1 hour now.  We let it run at a higher flow rate (~4.7 lpm) to push any accumulated air out of the line, and then returned it to our operating flow rate of ~2.8 lpm.  While the system was down we also changed the system filter; there was some slight yellowing to the filter, but other than that it looked pretty good for being installed for ~15 months.  We updated the chiller operating hours in the PSL control software to match the new chiller, 17004.0 hours at time of update.  We will continue to monitor the chiller over the course of the day.

The SN of the now in-service PSL chiller is 119247.  This closes LHO WP 13413.