<html><body><div style="font-family: tahoma,new york,times,serif; font-size: 14pt; color: #009900"><div><br></div><div><br></div><hr id="zwchr" data-marker="__DIVIDER__"><div data-marker="__HEADERS__"><b>From: </b>"Marc Mcmullen" <mcmullen@jlab.org><br><b>To: </b>"Douglas Tilles" <tilles@jlab.org>, "dsg-rich" <dsg-rich@jlab.org><br><b>Cc: </b>"Bob Miller" <rmiller@jlab.org>, "David Meekins" <meekins@jlab.org><br><b>Sent: </b>Tuesday, March 13, 2018 9:30:11 AM<br><b>Subject: </b>Re: [Dsg-rich] RICH gas panel<br></div><div><br></div><div data-marker="__QUOTED_TEXT__">Doug,<br><br>The RICH air panel falls under the Jlab pressure systems rules. Making <br>modifications needs to go through the owner and design authority (Bob <br>Miller, and Dave Meekins). The panel work, pressure systems testing and <br>documentation was completed by Meekins. The installation on the FWD <br>Carriage was completed by Hall B Mechanical.<br><br>I have discussed this with our gas system expert and manager, they both <br>concur that the it would have been more appropriate to space the panel <br>away from the guard rail during installation. That may be the best <br>course of action for Hall B Mechanical.<br><br>If there are any plans to shutdown the air panel please contact the <br>DSG-RICH mailing list prior to any action. So that any preparation for <br>alarms or systems can be taken prior to the work.<br><br>Regards,<br><br>Marc<br><br><br>On 3/13/2018 8:44 AM, Marc McMullen wrote:<br>> Doug,<br>><br>> DSG will look into it to see what needs to be done.<br>><br>><br>><br>><br>> On 3/13/2018 8:23 AM, Douglas Tilles wrote:<br>>> Marc<br>>><br>>> The RICH gas panel on the top deck FWD Carriage has a copper tube <br>>> next to the hand rail that needs to be rework so the panel set flat <br>>> to the hand rail were it will connect to. Also looks like a 90 deg <br>>> elbow will need to be put on the output of the new compressor at the <br>>> valve it sticks out to far.<br>><br><br>-- <br>Marc McMullen<br>Detector Support Group<br>757-269-7738<br><br>_______________________________________________<br>Dsg-rich mailing list<br>Dsg-rich@jlab.org<br>https://mailman.jlab.org/mailman/listinfo/dsg-rich<br></div></div></body></html>