Precision Cooling for Business-Critical ContinuityTM Liebert Economizer Cooling Solutions Reduce Cooling Costs by up to 50% Without Compromising Reliability
Lower Cooling Energy Consumption by up to 50% Fluid- and Air-side economizers take advantage of cold outside temperatures to provide “free cooling” cycles that reduce or eliminate the operation of data center precision cooling system compressors and pumps. Using economizers, you can lower cooling energy usage by up to 50% − depending on the average ambient temperature and humidity of your site.
Atlanta Fluid Economizer Cooling tower Drycooler 25% 52% 51% 17% 34% 36% Full Economizer Hours Partial Economizer Hours Estimated total Energy savings Chicago Seattle liebert Fluid Economizer liebert Fluid Economizer liebert CW or Ds CW or Ds CW or Ds Cooling DryCooling Drywith Air with Air with Air tower cooler tower cooler Economizer Economizer Economizer 18% 48% 41% 14% 39% 23% 27% 33% 39% 28% 22% 61% 61% 15% 34% 67% 58% 25% 70% 49% 34% The effect of ambient conditions in representative cities on
Fluid-Side Cooling Economization Strategy Fluid-side economizers work in conjunction with a heat rejection loop − consisting of either a cooling tower, evaporative cooler or drycooler − to satisfy cooling requirements. These systems are incorporated into either a chilled water or glycol-based cooling system. For economizer operation, the fluid used in the cooling system passes through an additional heat exchanger to cool the room air, reducing or eliminating the use of cooling compressors and pumps.
Why Liebert Products and Services? ■ Provides advanced control and monitoring, which allows units to work together as a single system to enhance performance and improve efficiency Chiller Plant Partnered with Liebert CW TM and Liebert Challenger 3000 ■ How Chiller Plant Economization Works The chilled water loop that feeds multiple chilled water-based CRAC units uses cold outdoor temperatures to cool the chilled water loop, effectively reducing pump operation.
Air-Side Cooling Economization Strategy Air-side economizers use outside air to Air Economizer System supplement data center cooling. they Liebert Air Economizer System installed on a Liebert CW chilled water-based precision cooling system in downflow configuration – using lower outside temperatures to minimize cooling compressor and pump use. utilize a system of sensors, ducts and dampers to control the entry of outside air to help satisfy cooling demands.
Why Liebert Products and Services? ■ ■ ■ Liebert Air Economizer System with Liebert iCOM Control for Liebert DS and Liebert CW How the liebert Air Economizer system Works The Liebert Air Economizer System reduces cooling costs by taking advantage of cool outdoor air to condition indoor spaces, reducing or eliminating compressor operation in Liebert DS units, and eliminating pump operation in Liebert CW, as well as reducing or eliminating the compressor operation of the supporting chiller plant.
Ensuring the High Availability of Mission-Critical Data and Applications. Emerson Network Power, a business of Emerson (NYSE: EMR), is the global leader in enabling Business-Critical Continuity™ from grid to chip for telecommunication networks, data centers, health care and industrial facilities.
