[Utility Outage] Scheduled HVAC Outage - 07/03/2013 17:00

[Carroll W. Jones]

The following HVAC Outage has been Confirmed:

Outage:      Test Lab Chiller 58-CH-1 Failure...Placed CUP Building Chiller in Operation
Proposed By: Carroll W. Jones
Start Time:  07/03/2013 17:00
End Time:    07/31/2013 17:00
Description: Test Lab Chiller Chiller 58-CH-1 failed this afternoon (Wednesday 7/6/13). CUP Building Chiller was placed in operation to maintain required site cooling capacity. Chilled water distribution system has been divided to enable operation of two Test Lab basement chillers in addition to the CUP Building chiller. Operation in this configuration is required since the CUP Building chiller is not large enough to provide enough cooling capacity for the site without being supplemented by Test Lab basement chillers. The CUP chiller and CUP Building secondary pumps are cooling the CEBAF Center F-Wing (F-Wing Data Center, F113 Conference Room, Tape Storage, and UPS Room), the TLA (cleanrooms, labs, and shop areas), and the renovated area of the Test Lab high bay (old Test Lab high bay area, VTA Control Room, VSA, Test Cave, and CTF Control Room). Test two operating chillers in the Test Lab basement are cooling the Test Lab North Addition (HDIce and surrounding shop areas), th
 e EEL (clean rooms and shop areas), and the Accelerator Chilled Water Loop. The Central Chiller Plant will remain in this configuration until CUP Chiller refrigerant charge has been adjusted, Chiller 58-CH-1 has been repaired, and Johnson Control System interfacing with Test Lab basement chillers is complete.

Impacts:
1. Systems cooled by chilled water piping section chilled using CUP Building chiller has no automatic chiller capacity backup...there is only one CUP Building chiller. There is a backup secondary pump and the chiller and all pumps are monitored and remotely alarmed. CUP chiller refrigerant charge adjustment may be completed as early as 7/5/13 but should definitely be completed by the end of next week (7/12/13).
2. Systems cooled by chilled water piping section chilled using Test Lab basement chillers have two operational chillers online and one should be able to hold the load. There are also a backup secondary pump. The secondary pump is monitored and remotely alarmed but the chillers are currently not monitored and remotely alarmed. Chiller 58-CH-1 should be repair sometime during the week of 7/8. The chillers will be automatically controlled and remotely alarmed once JCI has completed interfacing with the existing chillers and completed control system programming. Some monitoring and alarming should be available soon and the control interface with chillers and alarming should be complete by the end of July.

For additional information or clarification, please contact Carroll W. Jones at 757-876-1778.

For more details, visit the webpage listed below:
https://cc.jlab.org/cgi-bin/infrastructure/Outage/OutageView?ident=2