[Halld] Fw: Hall D cooling tower leak

[Scot Spiegel]

To all,

Correction... meant FDC Chiller not FCAL. Sorry.


Scot Spiegel

Hall D Work Coordinator​
ACI / Physics
JSA Jefferson Lab
12000 Jefferson Ave.
Bldg. 55 Rm. 1546-24
Newport News, VA. 23606

Work Phone 757-876-3940
Work Desk X ​6351
Tech. X 5900


________________________________
From: Halld <halld-bounces at jlab.org> on behalf of Scot Spiegel <spiegel at jlab.org>
Sent: Tuesday, November 26, 2019 7:06 AM
To: Jonathan Creel <creel at jlab.org>; Joe Wilson <jwilson at jlab.org>; Christopher Keith <ckeith at jlab.org>
Cc: halld at jlab.org <halld at jlab.org>
Subject: Re: [Halld] Hall D cooling tower leak

All,

FYI As of 7:00 a.m. the hall D BCAL, FCAL & target compressor  have been turned off.

J. Creel is coordinating the cooling tower repair for Cryo.

All the best,


Scot Spiegel

Hall D Work Coordinator​
ACI / Physics
JSA Jefferson Lab
12000 Jefferson Ave.
Bldg. 55 Rm. 1546-24
Newport News, VA. 23606

Work Phone 757-876-3940
Work Desk X ​6351
Tech. X 5900


________________________________
From: Timothy Whitlatch <whitey at jlab.org>
Sent: Friday, November 22, 2019 3:24 PM
To: Carroll Jones <jonesc at jlab.org>; Jonathan Creel <creel at jlab.org>; Scot Spiegel <spiegel at jlab.org>; Joe Wilson <jwilson at jlab.org>
Cc: Eugene Chudakov <gen at jlab.org>; David Lawrence <davidl at jlab.org>
Subject: Hall D cooling tower leak

Hi Folks,

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;

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.
Monday may not be practical since it will take some time to prepare the refrigerator and Solenoid magnet for the outage.

Hall D components cooled by chilled water (BCAL Chillers, FCAL chiller, Target compressor) will have to be turned off and then restarted.

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.

The LCW will not be cooled so all magnets will need to be off.

There needs to be careful discussion before doing this.

I will not be here Monday but Scot Speigel will be the contact for Hall D.

I can be reached on my cell phone if needed.

Regards,


Tim Whitlatch

Hall D Engineer

Jefferson Lab

757-269-5087
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