Fan and motor specialist ebm-papst has helped UBS achieve energy savings of 48% at three of its London data centres.
The project was completed almost five years ago and the following savings have since been made:
Based on the survey results a trial was then agreed on a single 10UC and 14UC CRAC unit to establish actual performance and energy savings. Data was logged before the upgrade and again once the trial units were converted from AC to EC.
Post upgrade trial data revealed that less power was absorbed by ebm-papst’s EC fan motors than w by their AC predecessors. With this information UBS were happy to proceed with the conversion of all units, installing 191 fans in total within 76 CRAC units. Three different unit models were installed: 39x14UC units; 21x10UC units and 16xCCD900CW.
Vertive then worked with CBRE who project managed the upgrade without causing disruption to the live data.
The main element of the upgrade was the replacement of all fans with ebm-papst’s EC technology direct drive centrifugal fans, including the installation of EC fans within a floor void that required modification. Project restrictions were extensive, given that the work was conducted in a live data environment, the upgrade teams were only allowed one unit switched off at any one time. Despite this, the upgrade was delivered on time, within budget and without disruption.