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Product Family

Liebert PDX, Direct Expansion Floor-Mount Cooling Unit, from 15 to 165 kW

The Liebert PDX direct expansion large room cooling unit is equipped with the most advanced industry cooling system technology, which allows the unit to provide thermal management efficiency for data centers and server rooms.

Best Suited For:
  • Banking, Financial and Insurance
  • Broadcast and Entertainment
  • Data Center/Colocation/Hosting
  • Government
  • Healthcare
  • Oil and Gas
  • Power Generation
  • Telecom


Liebert® PDX is the highest performing floor mount direct expansion unit in its range, delivering outstanding efficiency.
Suitable for all data center environments with a wide range of configurations to meet all installation requirements.
Liebert® PDX is ideal for data centers facing load and temperature variations, such as those typical of cloud computing environments. 


Installed Liebert PDX in a server room cooling system
 Liebert® PDX 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 and Liebert® EconoPhase™ pumped refrigerant economizer) increasing its ability to adapt to diverse application demands.
The Liebert® EconoPhase™ pumped refrigerant economizer is compatible with Liebert® PDX and Liebert® MC microchannel condenser to improve thermal management and control, while drastically cutting energy costs and lowering pPUE.
The unit can be configured with modulating capacity compressors for a precise supply temperature control and annual consumption reduction, while the fresh air economizer function, operated by the iCOMTM 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 allows the unit to reach significant levels of efficiency. 

*To see model-specific downloads, you will need to go to the model-specific product page by selecting the model name in the specifications chart above.

Find Your Area Contact

Products Support Contacts

Showing contacts for Virginia, 20149, USA Change
Vertiv (Liebert Services)
+1 800 543 2378
610 Executive Campus Drive Westerville Ohio 43082 USA
Product areas of focus: Uninterruptible Power Supplies (UPS), Power Distribution, Thermal Management, Integrated Solutions, Racks and Containment
Vertiv Academy – Thermal Management Training
+1 844 841 2665
530 Westar Blvd Westerville Ohio 43082 USA
Product areas of focus: Thermal Management

Customer stories


Cineca - A Vertiv Case Study

Cineca is increasingly becoming Italy’s unique point of reference for technological innovation. With offices in Bologna, Milan and Rome and more than 700 employees, Cineca serves the entire academic, educational and research system in Italy.

Thermal Management

Liebert PDX with EconoPhase

Do you want to cut energy costs and lower pPUE values? Watch this video to discover Liebert EconoPhase key features, the first ever pumped refrigerant economizer for enhanced energy savings, able to reduce or eliminate compressor run time.


University of Dammam

"The main objective of building this data center is to increase efficiency by utilizing resources in smart and innovative ways," says Dr. Saad AlAmri, CIO for the University of Dammam. “Vertiv has a full range of highly advanced solutions and a strong local presence in Saudi Arabia, that helped us achieve our goals."

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