Got pager call at 16:20 this afternoon. Solenoid had tripped on PL 
temperature. Arrived at about 17:00. Did a print screen of the striptool 
graph and solenoid screen. See files Prtscrn1_april25_2004.doc and
Prtscrn2_april25_2004.doc. System was in idle running mode. LHE heater at 
about 30%, buffer tank press at21.5 psig, shield heater at 37.5%. The
jumper is still on the back of the vacuum guage PIC901. The compressor 
building backup air compressor was tripped again, I reset it. HIC 141 was 
set to 0.46 , I set it to 1.1 (closed position). Set solenoid inlet and 
outlet HIC's to valve closed positions. Energized warm return HIC's then 
slowly opened warm return valves to vent pressure in solenoid. Cracked open 
solenoid inlet valves to get abot 1.5 barA pressure on PI143 and PI146. LHe 
level started to drop. Contiued slowly until all LHe boiled away. PI143 and 
PI146 at about 5 barA. Had to adjust turbine speeds and shield heat. Opened 
cold returns then closed warm returns. Gradually increased solenoid inlet 
valves until wide open. Adjust turbine speeds and shiled heater. At about 
21:00 stable // cold return cooling. Temperatures dropping gradually. See 
files april25_2004_2113.BMP and april25_2004_2114.BMP 

Have powerlead supply valve HIC142 open to 0.46 during cooling just to see 
what happens. Time now about 21:42. Leaving system in // cold return 
cooling. Should be ready for series switch over in the morning.