Thermal management system approved by California Energy Commission

The CEC has approved the Liebert DSE system with Liebert EconoPhase as a prescriptive economisation option, as part of Title 24 of the the CEC’s 2103 Building Energy Efficiency Standards For Residential and Non Residential Buildings, meeting the code’s requirements for energy efficiency and its prescriptive requirements for economisers.

The Liebert DSE system eliminates the need for any water in the heat rejection process and associated chemical water treatment, and it eliminates the risk of exposure to harmful waterbound bacteria. In addition, the Emerson modeling for the CEC compliance programme demonstrated an 8 to 10% reduction in the data centre Time Dependent Valuation measure, compared to the water economiser prescriptive option. The Liebert DSE system design also reduces or eliminates several of the power components associated with water economisers. In actual usage, the entire Liebert DSE system has demonstrated thermal system energy savings of up to 50% over older legacy systems.

“The Liebert DSE system is a great environmental steward. When used in a typical mid-sized data centre of one megawatt load, the Liebert DSE is significantly more efficient than current cooling systems, and eliminates the use of around four million gallons of water each year. If deployed broadly in California data centres, the Liebert DSE with EconoPhase could save hundreds of million gallons of water every year,” said John Peter Valiulis, Vice President, North America Marketing, Thermal Management, Emerson Network Power.