Vertiv Liebert DSE Free-Cooling System

The Liebert DSE is a free cooling economization system with backup DX compressor, which achieves the high efficiency without using water. The system can achieve an annual operational PUE under 1.2., while eliminating water usage, cost and treatment. Its large condenser surface area minimizes operating and peak power to minimize generator backup or free up additional saleable IT power. Unlike heat wheels, it has no air leakage or volumetric displacement, eliminating the need for additional fan power or make-up air capacity. As a self-contained solution, Liebert DSE system is highly scalable for fast deployment and time to market.

More information   Manufacturer's Website

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Technical Specifications
ModelsTotal Nominal Capacity Net Sensible CapacityNominal Airflow [CFM]HeightWidthDepthWeight
DA050, 50kW
 166 kBtuh [49kW]   166 kBtuh [49kW]   7000   76" 77"   35"   1590 lbs
DA080, 80kW
 285 kBtuh [84kW]   277 kBtuh [81kW]   9600   76"   100"   35"   2200 lbs
DA085, 85kW
 307 kBtuh [90kW]   297 kBtuh [87kW]   10,400   76"   100"   35"   2250 lbs
DA125, 125kW
 443 kBtuh [130kW]   443 kBtuh [130kW]   18,000   94"   144"   47"   3465 lbs
DA150, 150kW
 563 kBtuh [165kW]   542 kBtuh [159kW]   18,000 (24,000 optional)   94"   144"  47"   3574 lbs
DA165, 165kW
 602 kBtuh [177kW]   566 kBtuh [166kW]   20,000 (24,000 optional)   94" 144"   47"   3574 lbs
DA250, 250kW
 853 kBtuh [250kW] 853 kBtuh [250kW] 37,000 132 3/4" 120 1/4" 83 5/8" 6470 lbs

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