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<p>Hi Tyler and everyone,</p>
<p><br>
</p>
<p> The N2 banks have been placed, the backup manifold has been
installed and N2 flow has been established. MV4 is closed and
will remain so until you are ready, this allowed us to complete
everything with no interruption of N2 flow. I will update the
P&I and send it to you on Monday. One bank is set to ~12psig
and the other is just under 10 this should allow us to use the
banks one at a time if the need ever arises. <br>
</p>
<p><br>
</p>
<p>Have a great weekend,<br>
</p>
<pre class="moz-signature" cols="72"><i><b>Denny Insley</b></i>
<b>Jefferson Labs
Hall B work coordinator
<a class="moz-txt-link-abbreviated" href="mailto:dinsley@jlab.com">dinsley@jlab.com</a>
work: 757-269-6071
cell: 757-810-9576</b>
</pre>
<div class="moz-cite-prefix">On 2/1/2019 1:07 PM, Tyler Lemon wrote:<br>
</div>
<blockquote type="cite"
cite="mid:MN2PR09MB3584715577C0595EEBE90A7DBA920@MN2PR09MB3584.namprd09.prod.outlook.com">
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<p style="margin-top:0;margin-bottom:0">Hi Denny and Bob,</p>
<p style="margin-top:0;margin-bottom:0"><br>
</p>
<p style="margin-top:0;margin-bottom:0">Could you send us a
revised P&I diagram showing the changes made to George's
latest version (attached in my previous email)?</p>
<p style="margin-top:0;margin-bottom:0"><br>
</p>
<p style="margin-top:0;margin-bottom:0">We would need an
up-to-date version showing the changes we discussed today and
how the backup manifold is connected to the two N2 banks.</p>
<p style="margin-top:0;margin-bottom:0"><br>
</p>
<p style="margin-top:0;margin-bottom:0">Best regards,</p>
<p style="margin-top:0;margin-bottom:0">Tyler<br>
</p>
<p style="margin-top:0;margin-bottom:0"><br>
</p>
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<div id="divRplyFwdMsg" dir="ltr"><font style="font-size:11pt"
face="Calibri, sans-serif" color="#000000"><b>From:</b>
Dsg-rich <a class="moz-txt-link-rfc2396E" href="mailto:dsg-rich-bounces@jlab.org"><dsg-rich-bounces@jlab.org></a> on behalf of Tyler
Lemon <a class="moz-txt-link-rfc2396E" href="mailto:tlemon@jlab.org"><tlemon@jlab.org></a><br>
<b>Sent:</b> Friday, February 1, 2019 10:11:22 AM<br>
<b>To:</b> Denny Insley; Bob Miller; dsg-rich<br>
<b>Subject:</b> [Dsg-rich] RICH backup N2 manifold
installation</font>
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<p style="margin-top:0; margin-bottom:0">HI Denny,</p>
<p style="margin-top:0; margin-bottom:0"><br>
</p>
<p style="margin-top:0; margin-bottom:0">Just to review what
we talked about in the hall this morning and get some
clarification from you:</p>
<p style="margin-top:0; margin-bottom:0"><br>
</p>
<p style="margin-top:0; margin-bottom:0">You all are moving
the two 12-bottle N2 banks to the top of the pi tower and
will run a gas line from there to the RICH N2 panel. Bank
#1 will have a regulator set to ~20 psi and Bank #2'
regulator will be set to ~10 psi. This will allow gas to
be supplied from Bank #1 until its pressure drops below 10
psi, at which point, Bank #2 will start to supply N2.</p>
<p style="margin-top:0; margin-bottom:0"><br>
</p>
<p style="margin-top:0; margin-bottom:0">Using the attached
drawing as a reference, you're going to install the new
backup manifold at MV4 rather than what is shown in the
drawing. The house N2 supply will remain connected to and
flowing through MV1.</p>
<p style="margin-top:0; margin-bottom:0"><br>
</p>
<p style="margin-top:0; margin-bottom:0">Once the backup
manifold is installed, DSG will run the cabling for the
pressure transducers on the manifold to the hardware
interlock cRIO and move the house nitrogen from MV1 to the
new backup manifold at the connection point labeled "N2
Gas From 96B".<br>
</p>
<p style="margin-top:0; margin-bottom:0"><br>
</p>
<p style="margin-top:0; margin-bottom:0">We want to make
sure that whatever the plan is for the installation from
the manifold, that N2 flow to RICH not be stopped for more
than a few minutes. Since we discussed that MV4 will
remain valved off until DSG runs the PT cables, can you
all be sure to leave the house N2 supply line attached to
MV1 and flowing after you all install the backup manifold?</p>
<p style="margin-top:0; margin-bottom:0"><br>
</p>
<p style="margin-top:0; margin-bottom:0">Thanks,</p>
<p style="margin-top:0; margin-bottom:0">Tyler<br>
</p>
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