<!-- Title: 01:52:24  Wed Feb 23 2005 -->
<!-- Crewchief: Bruce / Jim H. / Bruce -->
<!-- Op1: &nbsp; -->
<!-- Op2: &nbsp; -->
<!-- Op3: &nbsp; -->
<!-- Op4: &nbsp; -->
<!-- Op5: &nbsp; -->
<!-- Op6: &nbsp; -->
<!-- Notes: -->
Walked thru mechanical rooms everything is running fine, cryo and gas systems are running good no problems to report at this time.


<!-- Date: Wed Feb 23 03:38:07 2005 -->
Started mixing argon/ethane into tank #3 at this time.
<!-- Author: Bruce -->
<!-- Comment: Wed Feb 23 08;51;16 comment by...Jim H. -->
The mix completed problem free.
<!-- Date: Wed Feb 23 06:21:35 2005 -->
Cryo and gas readings are normal at this time. The CDF systems checklist and mechanical rooms are also normal at this time.
<!-- Author: Jim H. -->


<!-- Date: Wed Feb 23 08:27:19 2005 -->
Gas alarm. COT alcohol bubbler low flow from the GST4 problem.
<!-- Author: Jim H. -->



<!-- Date: Wed Feb 23 09:13:52 2005 -->
Del requested to use compressor #2 when we mix A/E gas. I already switched over to compressor #2.
<!-- Author: Jim H. -->


<!-- Date: Wed Feb 23 09:18:11 2005 -->
Warren wrapped GST4 PRV-2400 with heater tape to prevent frost. We may have to re-position it to see what works best.
<!-- Author: Jim H. -->


<!-- Date: Wed Feb 23 10:09:06 2005 -->
We are changing from COT cold trap #1 to #2 to see if it helps the GST4 problem of losing COT flow even though pressure is higher each time tanks switch.
<!-- Author: Jim H. -->
<!-- Comment: Wed Feb 23 10;42;56 comment by...Jim H. -->
COT cold trap is operating. Flow to the COT alcohol bubbler is normal so far AT 13.9scfh.

<!-- Comment: Wed Feb 23 10;43;37 comment by...Jim H. -->
That's trap #2 by the way.


<!-- Date: Wed Feb 23 11:16:40 2005 -->
Regeneration for COT cold trap #1 is complete.
<!-- Author: Jim H. -->


<!-- Date: Wed Feb 23 11:21:17 2005 -->
At Dels request Jim L. added PT_GSAEDEL to S1 historical.
<!-- Author: Jim H. -->


<!-- Date: Wed Feb 23 11:32:34 2005 -->
I put the HVAC on low for the access.
<!-- Author: Jim H. -->
<!-- Comment: Wed Feb 23 14;21;40 comment by...Jim H. -->
The access is over. The HVAC is back on full.
<!-- Date: Wed Feb 23 11:56:04 2005 -->
<table border=0><td><tr><td bgcolor=#e0e030>We are beginning our move to SVX/L00's final operating temperature.  SVX chiller setpoint has been changed from -6 to -8 deg C.</td></tr></td></table>
<!-- Author: Andy H. -->
<!-- Comment: Wed Feb 23 11;57;43 comment by...Andy H. -->
Bumped down the SVX chiller temperature alarm limits by 2 degrees.

<!-- Comment: Wed Feb 23 12;18;47 comment by...Andy H. -->
The cooling line pressures went up a few tenths of a pound.  L00 W is now running at about 13.6 psia.  The overpressure interlock fires at 13.8 psia, so we'll probably throttle back the flow to this line.


<!-- Date: Wed Feb 23 14:19:15 2005 -->
I changed the east side gas shed pneumatic bottles. The west side is online now.
<!-- Author: Jim H. -->



<!-- Date: Wed Feb 23 14:41:49 2005 -->
Gas alarm. IMU alcohol bubbler low level. I added some alcohol.
<!-- Author: Jim H. -->


<!-- Date: Wed Feb 23 15:03:31 2005 -->
Adjusted some SVX/L00 flow control valves to cope with the larger pressure drop at lower temperature: 
<ul> 
<li> SVX BHE1: 80%->75% 
<li> L00 W: 80%->70% 
<li> L00 E: 45%->40% 
</ul> 
The L00 flow adjustment required lowering the alarm limit on low flow from 2.5 lpm to 2.0 lpm.
<!-- Author: Andy H. -->


<!-- Date: Wed Feb 23 16:56:46 2005 -->
Gas alarm. This time the CMU is low on alcohol. I added some.
<!-- Author: Jim H. -->


<!-- Date: Wed Feb 23 18:23:44 2005 -->
Bruce on duty,gas and cryo readings taken all systems are running fine no problems at this time.
<!-- Author: Bruce -->