Controls, power, and cooling outages – July 20-23

Accelerator Division Controls System

On Friday, July 20, beginning at 7 a.m., electrical contractors will connect a new uninterruptable power supply (UPS) to the Accelerator Division controls system as a backup in case of power loss. Power will be off in the Accelerator Division computer room. This outage will last for three days and power will not be brought back online until Monday, July 23, at 7 a.m. There will be no controls or any system or device monitoring available during this outage.

Please turn off computers and small electrical devices in your Wilson Hall offices before you leave work Friday afternoon, July 20, as temperatures may increase over the weekend.

Accelerator Division General Computer System

The Controls Group will attempt to provide general computer access and network services during this power outage, but this service is contingent on maintaining sufficient cooling in the in the AD computer room. If the cooling is insufficient, these servers will be shut down for the duration of the power outage.

Central Utility Building, cooling, and Wilson Hall

On Saturday, July 21, beginning at 7 a.m., the Central Utility Building (CUB) power system will be down for power and utility maintenance until Sunday, July 22, at 5 p.m. Wilson Hall will have NO COOLING during this time except in a few areas.

CUB, which provides comfort and process cooling for many systems, will not provide cooling for the following areas:

  • Wilson Hall
  • Accelerators
  • Cross Gallery
  • Linac
  • Booster Gallery & Towers
  • Transfer Gallery

If you work in any of these areas over the weekend, you will be uncomfortable – plan accordingly.

Spot coolers will provide cooling for the following areas in the Accelerator Division:

  • Accelerator Division Computer Room
  • MAC Room
  • The Main Control Room

Wilson Hall (WH) has a 90-ton chiller that will provide cooling to the following areas:

  • WH Floor 5, northwest
  • WH 8E, Fiber Central Room 874
  • Telecommunications Equipment Room, WH Quarter Southwest Corner
  • Communication Center/Dispatch WH GNX

The CMS Control Room (the LHC remote operations center on the first floor of WH) has its own cooling system.