Rack Enclosure features integrated cooling capabilities.

Press Release Summary:



Suited for small and mid-size data centers, Liebert XDK-W features nominal rating of 25 kW. Closed architecture solution utilizes air circulation internal to enclosure that is completely sealed from room air and environmental conditions. Server heat load is absorbed by rack's integrated cold water system through air-to-water heat exchanger in bottom of rack, while coolant distribution unit maintains fluid temperature above actual dew point to prevent condensation.



Original Press Release:



Emerson Network Power Increases Capacity of Liebert XDK-W



Energy-efficient rack enclosure designed for small and mid-size data centers

Columbus, Ohio [July 10, 2007] - Emerson Network Power, a business of Emerson (NYSE: EMR) and the global leader in enabling Business-Critical Continuity(TM), today expanded its energy-efficient Liebert XD family of high heat-density cooling solutions with the introduction of its higher capacity Liebert XDK-W, which is now available in a nominal 25 kW rating.

This new model is an extension to the current 17 kW system. The Liebert XDK-W enclosure with integrated cooling capabilities has been found to best fit applications in small to mid-size data centers that are less than 1,000 square feet or where the number of racks to be cooled is eight or less. The Liebert XDK-W can improve cooling system efficiency by up to 30 percent compared to traditional room cooling systems.

Lennart Stahl, Liebert XD senior product manager at Emerson Network Power, said, "Because it is independent from environmental conditions, the Liebert XDK-W gives data center managers greater power and cooling flexibility and reliability at the rack level to support the operation of higher density equipment in critical spaces."

The Liebert XDK-W utilizes water as the fluid to transport the heat out of the enclosure. It is a closed architecture solution utilizing air circulation internal to the enclosure that is completely sealed from room air and environmental conditions. Server heat load is absorbed by the rack's integrated cold water system through a high efficiency air-to-water heat exchanger in the bottom of the rack.

This solution enables IT professionals to deploy blade servers and other high density heat load computing equipment without creating hot spots in the data center. Redundant high-performance fans with temperature-dependent speed regulation drive closed loop air circulation in the rack's interior, while servers are supplied with cold air at the front of the rack.

Key to the performance and space saving of the Liebert XDK-W is the Liebert XDP-W pumping unit, which is also known as a coolant distribution unit (CDU). This unit delivers the critical control feature of maintaining the fluid temperature above the actual dew point to prevent condensation on the piping, enclosure skin and IT servers. The Liebert XDP-W also ensures isolation between the building chilled water system and the Liebert XDK-W water circuit.

For more information on Liebert XDK-W, or any other Liebert technologies and services from Emerson Network Power, visit www.liebert.com.

About Emerson Network Power
Emerson Network Power, a business of Emerson (NYSE:EMR), is the global leader in enabling Business-Critical Continuity(TM). The company is the trusted source for adaptive and ultra-reliable solutions that enable and protect its customers' business-critical technology infrastructures. Backed by the largest global services organization in the industry, Emerson Network Power offers a full range of innovative power, precision cooling and connectivity products and services for computer, communications, healthcare and industrial systems. Key product brands within the Emerson Network Power family include Liebert, ASCO, Astec, and Lorain. The Liebert Adaptive Architecture creates power, cooling and monitoring platforms for IT systems that combine high reliability and flexibility while delivering the lowest total cost of ownership. For more information on Liebert visit www.Liebert.com. For more information on the full spectrum of enterprise-wide solutions from Emerson Network Power, visit www.gotoemerson.com.

About Emerson
Emerson (NYSE: EMR), based in St. Louis, is a global leader in bringing technology and engineering together to provide innovative solutions to customers through its network power, process management, industrial automation, climate technologies, and appliance and tools businesses. Sales in fiscal 2006 were $20.1 billion. For more information, visit www.gotoemerson.com

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