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Product Family

Liebert AFC, Adiabatic Freecooling Chillers

Liebert® AFC combines the outstanding levels of energy efficiency allowed by freecooling together with the endless availability guaranteed by the compressor back up (available both with multi-scroll or screw compressors) and the highly efficient adiabatic wet pad system. The latter humidifies the air entering the freecooling and condensing coils, consequently increasing freecooling operation. The unit is thus designed to guarantee 100% cooling availability even under the most critical conditions.

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Best Suited For:
  • Banking, Financial and Insurance
  • Broadcast and Entertainment
  • Construction and Engineering
  • Data Center/Colocation/Hosting
  • Government
  • Healthcare
  • Manufacturing
  • Military, Defense, Aerospace and Missile
  • Nuclear Power
  • Oil and Gas
  • Retail and Wholesale
  • Telecom


Operating system modes of the Liebert AFC - a Vertiv adiabatic free cooling solution
Significant annual efficiency levels deliver a pPUE of 1.08
Grants continuous cooling availability in case of water shortages, extreme ambient temperatures and unstable power supply
Optimizes efficiency levels of data center applications including Liebert PCW and SmartAisleTM Containment


Data center installation and monitoring of the Liebert AFC adiabatic free cooling chiller
Date center cooling product of the year award for the Liebert AFC, adiabatic free cooling chiller
Integrated Adiabatic System: Highly efficient adiabatic wet pads humidify air entering the freecooling and condensing coils, thus increasing the freecooling chiller system operation and mechanical efficiency
Supersaver: The Supersaver is the software logic embedded in the iCOMTM Control leveraging on the communication with floor mount units to maximize efficiency at system level
 Fast Start Ramp: Fast recovery capacity: the unit ensures the re-establishment of the full cooling capacity in 70 seconds, following a power restart. The control remains operative without the need of an external single phase power supply
New iCOM 7’’ Touch Display: The iCOM Control ensures the intelligent management of units within the dynamic data center environment, while the innovative 7” touch screen display presents advanced graphic functions
 New Generation EC Fans: The new generation super silent EC fans dramatically reduce the noise levels and increase the overall unit efficiency
Electronic Expansion Valve: Minimizes condensing pressure to reduce compressors’ power consumption thus achieving high efficiency levels
 Microchannel Condensing Coil: The full aluminum fan coil ensures extreme efficiency levels during the mechanical cooling mode and minimizes the refrigerant charge

*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.

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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

Thermal Management

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Many European data center operators have made impressive strides around energy efficiency and carbon emission reduction in recent years. But it’s probably fair to say that the part cooling refrigerants play in that process hasn’t attracted much industry-wide attention to date.


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Like other sectors, suppliers of cooling equipment are responding to ongoing concerns around climate change by developing products and services that help reducing greenhouse gas emissions.

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