Liebert PDX/PCW, 11kW-29kW - Get More Data Center Cooling Capacity Per Footprint


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Liebert PDX and Liebert PCW Compact Perimeter Cooling Systems, 11kW-29k​

Small Footprint, High-Capacity Cooling

The Liebert PDX and Liebert PCW systems offer the industry’s highest efficiency, protection and capacity per footprint for server room cooling. network closets and other small spaces. Available in chilled water and direct expansion configurations.
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Liebert PDX and Liebert PCW compact, perimeter cooling solutions offer the highest efficiency, protection and capacity per footprint for small and medium IT spaces. Designed with unparalleled expertise, these products are part of our Thermal Management solutions that are intelligent, self-optimizing and rapidly deployable to make your data center as dynamic as your business.


These solutions are ideally suited for:

  • Small and Medium IT Spaces
  • Telecommunications switching offices
  • Industrial process control
  • Laboratories and medical imaging suites

Both systems offer:

  • Industry’s most compact footprint
  • Industry’s highest capacity per footprint
  • Liebert iCOM thermal system control for higher efficiency
  • Variable Speed EC Fans
  • Hydrophilic Slab Coil
  • DX – R410A, Scroll and Digital Scroll

Options include:

  • Air Cooled (using the Liebert MC™ Condenser); Water Glycol; Dual Cool; Chilled Water
  • Upflow, Downflow for raised floor, Downflow for front and side discharge
  • Infrared and steam gen humidifiers
  • Electric reheat
  • All 60 Hz voltages including 575V

Liebert iCOM-S™ thermal system control is available for optimizing the performance of multiple cooling units and providing access to operational data, system diagnostics and trending. Also available is the Liebert Intellislot™ Unity card for communication to building management and other monitoring systems.


Compact, perimeter systems are available as DX and Chilled Water solutions, with downflow and upflow configurations in the following capacities:

DX Configuration

  • Liebert PDX Downflow: 18kW, 23kW, 29kW capacities (5, 6.5, 8 Tons respectively)
  • Liebert PDX Upflow: 18kW, 23kW, 29kW capacities (5, 6.5, 8 Tons respectively)


Chilled Water Configuration

  • Liebert PCW Downflow: 17kW, 29kW capacities (5, 8 Tons respectively)
  • Liebert PCW Upflow: 17kW, 29kW capacities (5, 8 Tons respectively)



Higher Energy Efficiency

  • Compliant with U.S. Department of Energy minimum efficiency standards for data center equipment
  • Industry-leading Liebert iCOM unit control increases energy efficiency up to 50% through advanced algorithms for air temperature and fan speed coordination
  • Liebert iCOM-S supervisory control and monitoring system is available for managing multiple cooling units and displaying metrics and trends, leading to additional savings
  • EC Fans reduce motor energy usage by 10-30%, compared to standard AC motors. More efficient than centrifugal blowers even when operating at 100% fan speed
  • Unique, floor-level air discharge reduces mix between hot and cold air, improving efficiency

Greater Protection

  • Advanced controls fine-tune system operations for fewer errors and longer equipment life.
  • Self-optimizes for certain adverse events, providing availability approaching 100%
  • Predefined teamwork when used with multiple cooling units to prevent unit conflicts and reduce system wear and tear
  • Simplified views of system status, operations and event alarms
  • Advanced freeze and pressure routines to prevent icing on coils and locked out compressors

Highest Capacity Per Footprint

  • Designed for tight spaces
  • Net capacity per footprint of 3.6kW per square foot
  • Wide capacity range of 17kW – 29kW

Lower Capital, Installation and Maintenance Costs

  • Fast installation with less configuration, through integrated Liebert iCOM controls, and front and side access
  • Fans have fewer moving parts and no belts to maintain and replace
  • Fast event identification and resolution through Liebert iCOM controls
  • Self-optimizing controls for maintaining optimal conditions without manual intervention
  • Easy access at front and side for faster servicing
Contact Support

Emerson Local Business Partner
Contact your local partner for support with configurations, quotes, sales and service.

Emerson Support
Outside the US: +800-1155-4499

See What Makes the Liebert PDX and Liebert PCW Better

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2016 Cooling the Edge Report

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