[Utility Outage] Proposed HVAC Outage - 04/22/2014 07:30

[Carroll W. Jones]

The following HVAC Outage has been Proposed:

Outage:      Test Lab Boiler System Hot Water Flow Balancing
Proposed By: Carroll W. Jones
Start Time:  04/22/2014 07:30
End Time:    05/01/2014 17:00
Description: To resolve outstanding TEDF Subcontract testing and balancing discrepancy issues, the hot water system must be re-balanced.  This work will require as many hot water valves connected to the boiler system to be fully opened as possible to establish the correct system differential pressure setting at the beginning of the balancing process.  The Test Lab Boiler System provides heating water to the TLA, Test Lab high bay, Test Lab North Addition (includes HDIce Area), and EEL Building.  It may take 2 to 4 hours to establish the system differential pressure setting.  Areas will be warmer than normal during this process.  Once the system differential pressure setting is established only hot water valves located in the TEDF areas within the Test Lab TLA and Test Lab high bay will need to remain commanded fully open.  The hot water valves in the Test Lab North Addition and the EEL Building will be released or returned to normal operation.  At the end of each workday, hot
  water valves will be returned to normal operation and re-commended fully open the following workday.  As areas connected to a branch are completed, the area will be returned to normal operation and balancing based upon operation at the system differential pressure setting to minimize the areas being adversely (overheated) impacted by the hot water balancing process.

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

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