Liebert PDXLiebert® PDX direct expansion cooling unit

Equipped with the most advanced industry technology which allows the unit to reach significant levels of efficiency, Liebert PDX guarantees an efficient thermal management of data centers and server rooms.

Liebert PDX cooler is available both in air cooled and water cooled versions to suit various site installation requirements. It also allows multiple Freecooling modes of operation (Direct Air, Indirect Water, Chilled Water on Freecooling Chiller) increasing its ability to adapt to diverse application demands.

The unit’s Digital Scroll configuration is responsible for modulating cooling capacity while the fresh air economizer function, operated by the iCom® control, is adopted when outside air temperature is colder than the return temperature.

In addition, the combination of R410A refrigerant, Electronic Expansion Valve (EEV) and new generation Liebert® EC Fans 2.0 all allow the unit to reach significant levels of efficiency.

Liebert® PDX is designed to provide efficient small and large room cooling for data centers, where efficiency, flexibility and simplicity of installation are key factors.

Liebert PCWPCW chilled water cooling unit 200kW - 6MW

Liebert PCW is the ideal cooling unit for Cooling the Cloud. Utilising chilled water as its cooling fluid and available in a wide variety of floor mounted configurations, Liebert® PCW is appropriate for all data centers from 200 kW to 6 MW.

Liebert® PCW patented technology ensures optimum energy efficiency for cooling data centers impacted by the sheer density and variability of demand resultant from Cloud technologies, without compromising on performance or reliability.

When combined with Liebert HPC Freecooling Chillers, this solution provides the ultimate in energy efficient data center cooling.

Liebert HPMAir Conditioning Units Designed for Top Level Performance and Reliability

Liebert HPM units are air conditioners equipped with EC Fans, with several air delivery versions: downwards (underfloor delivery), upwards and “displacement”.

Liebert HPM units are equipped with an iCOM® Control, featuring an integrated Web connection and two optional graphic displays. Liebert HPM combines different cooling technologies in order to provide the ideal solution for any customers’ needs:

  • Direct Expansion: available with the air or water-cooled Copeland Scroll compressors.
  • Chilled Water: to be used with Liebert HPC.
  • Dual-Fluid: matches low running costs together with total reliability. It operates with chilled water, thus guaranteeing business-continuity, as a result of spare compressors quickly intervening whenever the central unit stops.
  • Freecooling: to reduce power consumption leveraging on low winter temperatures to cool the data center, thus avoiding the use of compressors (365 days per year).

Precision Cooling System, 80-150kW

Liebert DSEUp to 70% more energy efficient than alternative technologies

The Liebert DSE high efficiency DX precision cooling system from Emerson Network Power combines the industry’s highest efficiency operation – up to 70% more efficient than alternative technologies – with the reliability and local expertise associated with Liebert products.

Hassle-Free Economization eliminates the use of water – and the costs of water treatment – protects against outside air contamination and reduces services by eliminating air dampers and louvers.

Advanced Liebert iCOM™ thermal system controls optimize the operation of each component to maximize free-cooling hours, minimize energy consumption, provide diagnostics and integrate to data center management systems.

This thermal management solution is scalable, ensuring that the data center receives the right amount of cooling year-round, and also accommodating future growth and changing data center loads.

Chilled Water-based Data Center Cooling, 26-181kW

Liebert CWChilled Water-Cooled Precision Air Conditioning For Data Centers

The Liebert CW data center cooling system is specifically designed to handle the high heat loads generated by computers and other electronic equipment, using an existing building chiller as a source of chilled water cooling. Liebert iCOM controls and a variety of energy efficient features combine to ensure reliable, economic data center management.

Liebert CW is available in downflow and upflow models, in 26-181kW capacities. Options include Variable Speed Drive fan motors for all models; and EC Plug Fans for all downflow models. The system is available in 60Hz and 50Hz.


  • Precision cooling and humidity control
  • Offers upflow and downflow models
  • Monitors and controls operation with Liebert iCOM
  • Provides energy efficient fan options
  • Significant energy savings on downflow models with optional air economizer. All models compatible with chiller plant economization.