Liebert Air Handling Units - More Free Cooling, Direct and Indirect Evaporative


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Liebert Custom
Air Handling Units

Free-Cooling Direct and Indirect Evaporative Systems

Liebert free cooling evaporative cooling systems transform data center design and meet the efficiency and availability needs of the largest, most complex data center environments. Comprehensive configuration and project management services ensure that our solutions fit each customer's specific requirements.
Overview

Liebert Custom Air Handling Solutions offering maximum flexibility with industry best efficiency, availability and service support leveraging 40+ years of data center experience.

Liebert CWC Chilled Water Air Handler 

Liebert Indirect Evaporative Freecooling Unit

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Liebert Indirect Evaporative Freecooling Unit

  • PUE < 1.2 with minimal water usage
  • Highly efficient aluminum air-to-air heat exchanger offers up to 66% efficiency dry and 78% efficiency wet
  • Supplemental DX or chilled water options available for trim cooling requirements
Liebert CWC Chilled Water Air Handler 


Liebert
Direct Evaporative Freecooling Unit

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Liebert Direct Evaporative Freecooling Unit 

  • PUE < 1.1 with minimal water usage
  • DX or chilled water secondary cooling options sized for full or trim cooling
  • EC or direct drive fans with VFD options arranged in single or fan array configurations
Liebert CWC Chilled Water Air Handler 

Liebert Chilled Water Air Handler

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Liebert Chilled Water Air Handler 

  • EC or direct drive fans with VFD options arranged in single or fan array configurations
  • Optional air economization for optimum efficiency
Liebert CWC Chilled Water Air Handler 

Liebert DX Air Handler

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Liebert DX Air Handler

  • High quality, highly efficient rooftop DX solutions specifically designed for data centers
  • Configurations incorporate outside air economization, variable capacity compressors, bypass dampers, and evaporative condensers

 

Unit Construction
  • High-strength thermal-break construction with 2” foam-injected walls, doors and flooring providing an R-value of R12 for greater efficiency and durability
  • Standard Casing Ratings
    • DLC of 5.0
    • Panel deflection of L/250
  • Frame and removable panel design allowing for service or replacement of large internal components
  • Welded or bolted-base construction for high durability and strength
  • Standing-seam roof construction eliminating water infiltration
  • Optional 4” enhanced casing offering greater energy efficiency with an R-value of R24 and additional acoustical and corrosive environment protection alternatives
    • Leakage rate of less than 1% at 10”
    • Panel deflection of L/400 at 10”
  • With Proper Maintenance, Unit Construction Engineered to Last Over 30+ Years
Components
  • EC and Direct Drive Fans with VFD arranged in individual or fan arrays
  • Variable & Digital Compressors
  • High Efficiency Aluminum Air-to-Air Heat Exchanger – up to 66% efficiency dry and 78% efficiency wet
  • Multi Stage Direct Evaporative Media
  • Optional Evaporative Condenser
Technical Specifications

Liebert® Custom Air Handling Units
Specifications table

Size Air Flow Configurations
Liebert Chilled Water Air Handler 200 –
600+ kW
25,000 – 80,000+ CFM Indoor Unit – Downflow, Upflow, & Horizontal Airflow
Liebert Direct Evaporative Freecooling Unit  150 –
600+ kW
20,000 – 80,000+ CFM Data center, gallery, rooftop or external building perimeter
Liebert Indirect Evaporative Freecooling Unit 150 –
400+ kW
20,000 – 60,000+ CFM Rooftop or external building perimeter
Liebert DX Air Handler 150 –
600+ kW
20,000 – 80,000+ CFM Rooftop or building perimeter
Trellis Installed
Trellis Installed Intelligent Sensors
Customer Success Green House Data

Customer Success Green House Data

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Liebert® Custom Air Handling Solutions
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