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All,</div>
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FYI. Hall D climate controls and BCAL, FDC & Target chillers returned to a nominal state. The Cryo Group has began recovery & control... </div>
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Cheers,</div>
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<p style="margin-top:0px; margin-bottom:0px; margin-top:0; margin-bottom:0"><span style="font-family:"Arial Black",Arial,sans-serif; font-size:11pt"><b><i>Scot Spiegel</i></b></span></p>
<p style="margin-top:0px; margin-bottom:0px; margin-top:0; margin-bottom:0"><span style="font-family:"Arial Black",Arial,sans-serif; font-size:11pt"><b>Hall D Work Coordinator</b></span><span style="font-size:11pt"><b><i></i></b></span><b><br style="font-family:arial,helvetica,sans-serif,serif,EmojiFont; font-size:13.3333px">
<i><span style="font-family:arial,helvetica,sans-serif,serif,EmojiFont; font-size:11pt">ACI / Physics </span><br style="font-family:arial,helvetica,sans-serif,serif,EmojiFont; font-size:13.3333px">
<span style="font-family:arial,helvetica,sans-serif,serif,EmojiFont; font-size:11pt">JSA Jefferson Lab</span><br style="font-family:arial,helvetica,sans-serif,serif,EmojiFont; font-size:13.3333px">
<span style="font-family:arial,helvetica,sans-serif,serif,EmojiFont; font-size:11pt">12000 Jefferson Ave.</span><br style="font-family:arial,helvetica,sans-serif,serif,EmojiFont; font-size:13.3333px">
<span style="font-family:arial,helvetica,sans-serif,serif,EmojiFont; font-size:11pt">Bldg. 55 Rm. 1546-24</span><br style="font-family:arial,helvetica,sans-serif,serif,EmojiFont; font-size:13.3333px">
<span style="font-family:arial,helvetica,sans-serif,serif,EmojiFont; font-size:11pt">Newport News, VA. 23606</span></i><br style="font-family:arial,helvetica,sans-serif,serif,EmojiFont; font-size:13.3333px">
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<div><b><i><span style="font-family:"Arial Black",Arial,sans-serif; font-size:11pt">Work Desk X
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<b><font face="arial,helvetica,sans-serif,serif,EmojiFont" size="2"><i><span style="font-size:11pt">Tech. X</span><span style="font-size:11pt"> 5900</span></i></font></b>
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<div id="divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" color="#000000" style="font-size:11pt"><b>From:</b> Halld <halld-bounces@jlab.org> on behalf of Scot Spiegel <spiegel@jlab.org><br>
<b>Sent:</b> Tuesday, November 26, 2019 7:06 AM<br>
<b>To:</b> Jonathan Creel <creel@jlab.org>; Joe Wilson <jwilson@jlab.org>; Christopher Keith <ckeith@jlab.org><br>
<b>Cc:</b> halld@jlab.org <halld@jlab.org><br>
<b>Subject:</b> Re: [Halld] Hall D cooling tower leak</font>
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All,</div>
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FYI As of 7:00 a.m. the hall D BCAL, FDC & target compressor have been turned off. </div>
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J. Creel is coordinating the cooling tower repair for Cryo. </div>
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All the best,</div>
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<span style="font-family:"Arial Black",Arial,sans-serif; font-size:11pt"><b>Hall D Work Coordinator</b></span><span style="font-size:11pt"><b><i></i></b></span><b><br style="font-family:arial,helvetica,sans-serif,serif,EmojiFont; font-size:13.3333px">
<i><span style="font-family:arial,helvetica,sans-serif,serif,EmojiFont; font-size:11pt">ACI / Physics </span><br style="font-family:arial,helvetica,sans-serif,serif,EmojiFont; font-size:13.3333px">
<span style="font-family:arial,helvetica,sans-serif,serif,EmojiFont; font-size:11pt">JSA Jefferson Lab</span><br style="font-family:arial,helvetica,sans-serif,serif,EmojiFont; font-size:13.3333px">
<span style="font-family:arial,helvetica,sans-serif,serif,EmojiFont; font-size:11pt">12000 Jefferson Ave.</span><br style="font-family:arial,helvetica,sans-serif,serif,EmojiFont; font-size:13.3333px">
<span style="font-family:arial,helvetica,sans-serif,serif,EmojiFont; font-size:11pt">Bldg. 55 Rm. 1546-24</span><br style="font-family:arial,helvetica,sans-serif,serif,EmojiFont; font-size:13.3333px">
<span style="font-family:arial,helvetica,sans-serif,serif,EmojiFont; font-size:11pt">Newport News, VA. 23606</span></i><br style="font-family:arial,helvetica,sans-serif,serif,EmojiFont; font-size:13.3333px">
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<b><font face="arial,helvetica,sans-serif,serif,EmojiFont" size="2"><i><span style="font-size:11pt">Tech. X</span><span style="font-size:11pt"> 5900</span></i></font></b>
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<div id="divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" color="#000000" style="font-size:11pt"><b>From:</b> Timothy Whitlatch <whitey@jlab.org><br>
<b>Sent:</b> Friday, November 22, 2019 3:24 PM<br>
<b>To:</b> Carroll Jones <jonesc@jlab.org>; Jonathan Creel <creel@jlab.org>; Scot Spiegel <spiegel@jlab.org>; Joe Wilson <jwilson@jlab.org><br>
<b>Cc:</b> Eugene Chudakov <gen@jlab.org>; David Lawrence <davidl@jlab.org><br>
<b>Subject:</b> Hall D cooling tower leak</font>
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Hi Folks,</div>
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As discussed, there is a leak in a fitting in the Hall D cooling towers. Carroll would like to do the repair Monday. It will require a chilled water outage to Hall D and the Tagger hall. There will be no water flow at all fo up to 4 hours. Systems affected
are;</div>
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Hall D refrigerator will lose compressor cooling and will have to be shut off - Jonathan and Joe are discussing a plan for shutting down and recovering.<br>
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Monday may not be practical since it will take some time to prepare the refrigerator and Solenoid magnet for the outage.</div>
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Hall D components cooled by chilled water (BCAL Chillers, FCAL chiller, Target compressor) will have to be turned off and then restarted.</div>
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Hall D counting house, tagger service building and Hall D will be without air conditioning for up to 4 hours. This will affect the temperature in the computer room and Hall.</div>
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The LCW will not be cooled so all magnets will need to be off.</div>
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There needs to be careful discussion before doing this.</div>
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I will not be here Monday but Scot Speigel will be the contact for Hall D.</div>
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I can be reached on my cell phone if needed.</div>
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Regards,<br>
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Tim Whitlatch </p>
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Hall D Engineer<br>
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Jefferson Lab</p>
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