To-do and To-consider items for M9B superconducting 
solenoid/refrigeration system.

- New pressure guages for the Mycom compressor panel. The 
present guages are damaged from vibration and do not read 
properly. The new guages should be isolated somehow from 
vibration. 

- Investigate designing and building a compressor oil 
heater/conditioner. The helium compressor should be topped up 
with "conditioned" oil. 

- Have contractor check allignment of compressor motor to 
compressor and check flex coupling condition. MYCOM to 
recommend contractor. Check condition of and re-grease 
compressor motor bearings. 

- Replace missing and unreadable identification tags on 
valves, piping, and instrumentation throughout the system. 

- Identify, catalog and label stored spare parts and equipment 
and provide proper storage. 

- Provide "Lamp Check" button for main compressor panel. 

- Investigate LED type replacement bulbs ( Base Style 24XX ) 
for Sulzer control panel. 

- Update and improve operation manual and maintenance instructions. 

- Provide computer control for solenoid power supply to 
simplify operation and make it less prone to operator 
error. 

- Re-arrange locations of vacuum computer and X displays so 
that the opportunity of accidently bumping into buttons on Sulzer 
panel is reduced. 

- Re-write solenoid power supply logic to require that both powerlead 
temperatures must be stable and below XX? Kelvin for 60 minutes before 
enabling arming the solenoid power supply. 

- Increase computer security. Restrict physical access ? 
Virus scanner ? 

- Look into using Ultra-VNC with encryption for security. Stop 
Commute modem access but route Commute access through hard wired 
serial connection to PC running Ultra-VNC. Or keep modem access 
but use call back method. 

- Set up procedure and pipe in convenient sample points for 
dewpoint, N2/O2, oil content readings. Sample readings should be 
documented prior to starting turbine cooling. 

- Upgrade LN2 fill equipment for Purifiers. Can both puifiers 
be operated in parallel during a cool down ? Auto-isolation of 
purifiers' from helium system when LN2 runs out or fails or 
power failure. 

- Provide dedicated LN2 line to M9B compressor building ? Guy Stanford 
has info on relatively inexpensive efficient foam covering for LN2 
lines instead of vacuum jacketed piping. 

- Can anything be done about the epoxy fumes from the buffer tank ? 
A charcoal/molecular seive filter in the buffer tank line 
check-valved for free flow to buffer but filtered flow from buffer ? 

- Fix back-up air compressor system. 

- Remove any unauthorized taps off of the M9B compressed air line to 
other non M9B systems. 

- Clean-up of compressor building and clean-up around Sulzer panel. 

- Route turbine defrost circuits to outside of shielding blocks. 

- Clean-up area behind solenoid power lead flowmeters and pressure 
gauge panel. Remove all unused tubing and cables. 

- Harden Sulzer control panel against water damage from water leaks 
overhead. 

- pipe in precision flow control valve and pressure guages on powerlead 
flow to main compressor suction line. 

- pipe in manual bypass circuit around main coldbox HE in and out 
valves. 

- New vacuum controller for Sulzer panel. Repair old one for a spare. 

- Add in some smart logic to prevent system trip on solenoid vacuum 
during a quench recovery cooldown. When solenoid power supply is 
not armed solenoid vacuum should be allowed to degrade slightly 
( within limits ) from contamination defrosting into solenoid vacuum. 
As soon as solenoid power supply is armed then solenoid vacuum trip 
set to high vacuum again. Solenoid vacuum trip logic should be re-worked. 

- provide vacuum gauge between solenoid vacuum diffpump and BV2. 

- provide computer readable indication for: 

        - CV204 position 
        - LHe heater reading 
        - turbine 1 entrance temp. 
        - Buffer tank line pressure 
        - air pressure 
        - position signal to CV211 and CV212 
        - position of CV151 
        - position of CV141 
        - 80K shield heater setting 
        - purifier LN2 status 
        - backup air compressor OK 
        - solenoid vacuum 
        - solenoid current 
        - solenoid power supply armed ? 
        - others ????? 


- check oil levels, drive belts etc for system mechanical, diff, and 
cryo pumps. 

- check calibration of system pressure and temperature sensors. 

- repairs and upgrades to Sulzer Control panel instrumentation and 
relays 

- re-charge TI148 and TI149 

- follow-up on improvement requests for X displays for vacuum and solenoid 
data. 

- compressor water package maintenance and repairs. 

- repair compressor building roof leak. 

- inspect and clean system air filters and coalesers and water filters. 

- buffer tank clean-up and re-paint. 

- train more system operators for M9B and ISAC II helium refrigeration 
systems ? 

- Vacuum gauges on cold box transfer lines ? Or build small portable LN2 
trapped vacuum pump station ( probably very usefull for many other 
areas at TRIUMF including purifier regeneration in compressor building ) 

- Should we buy Don Dales' first trip logger ? It is a PLC that is networkable 
and may be used for other functions ? Is it obsolete or outdated ? 

- Develope a system using a residual gas analyzer for helium gas purity 
measurements ? 

_____________________________________________________________________________ 

Items added Dec 19,2003 :

- Sniffer Leak check of piping, especially powerlead insulators.

- Top up gas to system. The lowest helium relief valve setting is
SV45 set at 5 kg/cm^2 Gauge  (71.12 psig) so it would be reasonable
to fill the system to 60 psig.

- re-work purifier plumbing, add purge ports at flowmeter. Make
purifiers portable ?

- Make small portable circulation helium compressor + ORS skid ?

- Schedule quarterly steady state vibration measurments for MYCOM 
compressor. (Tom Ries has vibration measurement equipment)

_______________________________________________________End of list for now !