B513 Planning Meeting, 26^th February 2003

Present: Tony Cass, Anne Funken, Jukka Lindroos, Jose Miranda Vizuete, Tim Whibley

1. Previous Minutes

2.3) The middle panel (of 3) for the transformers nearest the car park will be transparent.

2. Substation Status

The civil engineering work is almost complete. There will be an initial inspection next week with the provisional acceptance meeting scheduled for the week of March 8^th.
The car park is now being recovered; painting will go ahead over the weekend if the weather is good enough. Jose remarked that the painting on the new tarmac may disappear relatively quickly as the initial surface is easily worn.
The design for the HVAC installation is almost complete. The price enquiry will be sent out by mid-March with installation expected from the summer.
Orders are being placed now for installation of general services for the substation.

Jukka will meet the company contracted to install ducts in the machine room on Monday (March 1^st) to plan the work. This must be coordinated with Tim Whibley to allow installation of racks in preparation for the move of IS services.
Jukka is still investigating how to route ducts down from the cold air plenum; it seems that one will have to be next to the PDUs in the critical area rather than in the “pillar”. Jukka will also contact Steel Systems to discuss the modifications to the false floor infrastructure that will be necessary to accommodate these ducts.
TS/CV now plan to run with 7 cooling stations in operation to check noise levels on Tuesday 2^nd March.
Plans for the power arrangements in the network area need to be understood better. Anne has been assuming that all equipment will be connected to both PDUs (i.e. powered by both the critical and “physics” UPS). This provides the necessary redundancy for maintenance. Tony considers, though, that it is likely much of the network equipment will be dedicated to physics services in the machine room and will not have a connection to the critical UPS. If this is the case then the PDU connected to the “physics” UPS will need an alternate supply to cover maintenance needs.
Marcel Lasne will be asked to prepare a plan to resupply all of the equipment that cannot be moved. This must be done by end-July so that all old PDUs can be removed and the normabarres moved to their new locations.

Work on the overall design advances. The Draughtsman has located all of the existing pipework and the plan of HVAC plant room is 80% complete. Following tests on one pipe, it seems likely that the cooling water pipes are in a reasonable state; more tests are needed before this can be confirmed, though. Jukka considered that a costed upgrade plan would not be available before early May, however.
Jukka has prepared an initial plan for the installation of ducts in the machine room. Various points were noted:

The ducts down the archive store wall limit the flexibility to install electrical filters. Should these be necessary, some at least will have to be located in the archive store which, due to the clearance requirements, will reduce the storage space.
The ducts down the operators’ corridor wall are large: 1m´2m. No modifications will be necessary to the ceiling ducts to accommodate the necessary airflow.
Jukka would like to install ducts under in the false floor under the corridor between the two halves but the number of UTP hubs installed here may make this difficult. Tony considered it unlikely that these could be moved far; CS group will be asked, however. It was also noted that other UTP hubs may interfere with the ducts down the operators’ corridor wall.
Cold air will be available for B513 corridors in 2004, but not in 2005.

The “worst case scenario”, for HVAC failure when computing equipment continues, still needs to be understood so we can assess the need for a “thermal cut out” for the PDUs.