Free Cooling Chiller Systems

Reduce mechanical cooling demand and improve energy efficiency by using favorable outdoor air conditions.

Maximum Energy Savings

Reduce Cooling Energy Use with Natural Free Cooling

Cooling represents a significant share of data center energy consumption. Free cooling chiller systems use lower outdoor temperatures to reduce compressor operation and provide cooling with less mechanical energy.

The system automatically transitions between mechanical, hybrid and free cooling modes according to ambient conditions. This approach can reduce annual energy consumption, improve PUE and support lower-carbon data center operations.

  • Lower PUE: Hybrid operating architectures can support annual average pPUE values as low as 1.08, depending on system design, climate and operating conditions.
  • Extended Equipment Life: Reduced compressor operating hours help limit mechanical wear and extend system service life.
  • Improved Return on Investment: Lower cooling energy consumption can reduce operating costs and improve the long-term return on the cooling investment.

Chiller Solutions for Your Data Center

A comprehensive product portfolio designed to improve energy efficiency, cooling continuity and sustainability across data centers of different scales.

Adiabatic Free Cooling System

Liebert AFC

A high-capacity free cooling solution featuring integrated adiabatic pad technology, full compressor redundancy and annual average pPUE values as low as 1.08 under suitable design and operating conditions. The adiabatic system extends free cooling availability, including in warmer climates.

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Scroll Compressor Free Cooling Chiller

Vertiv Liebert HPC-S

A flexible solution for medium-sized data centers, combining scroll compressor technology, low-GWP refrigerant options such as R454B and R1234ze, a compact footprint and a broad operating range.

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Liquid Cooling and AI Heat Rejection Unit

Vertiv CoolLoop Trim Cooler

A next-generation heat rejection solution designed for AI and high-density computing environments. It supports liquid cooling architectures, water-free operation and high-temperature cooling applications.

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Key Benefits of Free Cooling
Chiller Technology

High-efficiency cooling, reduced environmental impact and reliable operation for mission-critical environments.

Intelligent Free Cooling Management

Continuous outdoor temperature monitoring enables automatic transitions between mechanical and free cooling modes to reduce unnecessary energy consumption.

Adiabatic Cooling Support

An integrated wet-pad system cools incoming air through evaporation during warmer conditions, helping reduce compressor load and extend free cooling operation.

Low-GWP Refrigerants

Next-generation refrigerants such as R454B and R1234ze support lower global warming potential and alignment with evolving environmental requirements.

Low-Noise Operation

Advanced EC fan technology and optimized acoustic design help reduce operating noise in urban and noise-sensitive locations.

Intelligent iCOM Control

An advanced touchscreen controller coordinates multiple units through Teamwork operation and optimizes system-wide cooling performance.

Rapid Restart

Following a power interruption, the system can restore compressor operation rapidly to support cooling continuity across critical environments.

Prepare Your Cooling Systems for Future Demand

Reduce operational risk with flexible, high-performance cooling systems designed for growing data loads and evolving capacity requirements.

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