CritiCool-X™

Cooling that Scales with the Future of AI

The CritiCool-X chiller provides an innovative cooling solution to today’s hyperscale, colocation, enterprise, and high-density AI data centers. Thanks to 99.9% uptime and reliable energy performance, data center operators stay in control, even under the highest demands.

This is the future of data center cooling, built to meet the moment and beyond.

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Specialized Cooling, Better Control

CritiCool-X delivers cooling that adapts, performs, and endures. Explore the key features that set it apart.

  • Turbocor magnetic bearing compressors use up to 30% less energy than traditional designs.
  • Patented Series Counterflow Technology delivers industry-leading PUE <1.15.
  • VFD pumps enable seamless, energy-saving transitions to free cooling.
  • EC fans adjust speed to match load, minimizing overcooling and energy waste.
  • The closed-loop, air-cooled design eliminates the need for evaporative water, achieving a true WUE of 0.
  • Smart hydraulic bypass allows full compressor shutdown for part-load energy savings.
  • Built as a magnetic centrifugal chiller with capacities from 500 kW to 1 MW.
  • Supports reliable operation in ambient temperatures ranging from -13°F-125.6°F.
  • Dual-system redundancy allows uninterrupted operation during maintenance.
  • AI-driven controls responsively adjust system behavior in real time to changing heat loads.
  • A bypass valve automatically regulates water flow to improve system precision.
  • C4M corrosion-resistant construction protects components in harsh environments.
  • Full access to internal components streamlines maintenance, reduces service time, and improves uptime.
  • Standardized sub-modules support parallel production, cutting lead times.
  • Modular design enables rapid deployment and commissioning.
  • Intelligent bypass and circulation control yield up to 15% annual pump energy savings.
  • Reduced mechanical stress and simplified servicing extend equipment lifespan.
  • Proven performance and 24/7 system monitoring ensure reliable operation.
  • High energy efficiency and reduced water usage contribute to sustainability goals.
  • Up to 50% lower operating expenses than traditional designs and 99.9% uptime maximize ROI.

CritiCool-X Application by Scale & Architecture

Hyperscale Data Centers

PUE optimization, modular scaling

Edge Data Centers

Compact size, harsh environment resilience

Prefabricated Modular Containers

Rapid deployment

CritiCool-X Application by Workload Profile

AI Training Clusters

40kW-100kW+ / rack, spike loads

Virtual Machines (VMs)

30-100% dynamic loads

Cold Storage DC

64.4°F-80.6°F medium cooling

What Cooling Was and What It Can Be

See the Difference with CritiCool-X

Traditional Designs

The Efficiency Dilemma

Dual refrigerant circuits in series aim for high water temperature and ΔT, but create pressure imbalance.

The low-temperature circuit takes on extra work at the condenser stage.

Both condensers pull from the same hot air, spiking low-temperature pressure ratio by 30%.

Compression imbalance leads to up to 20% energy loss.

CritiCool-X

The Breakthrough Solution

Condensers are arranged in series (not parallel) to align airflow and pressure.

The low-temperature circuit receives fresh air to maintain a stable 2.4:1 pressure ratio.

The high-temperature circuit handles pre-cooling efficiently with a golden pressure ratio of 2.2:1.

Pressure imbalance resolved and system stress reduced

Cooling the AI Surge: Why Infrastructure Needs a Rethink

The AI boom is already here, and it’s pushing data center infrastructure to the edge.

The data centers that lead in the AI era will be those that treat cooling not as an afterthought, but as a core driver of performance and resilience.

Download Our Brief

Frequently Asked Questions

Does CritiCool-X use liquid cooling?
CritiCool-X is not a liquid cooling system itself; it’s an air-cooled magnetic levitation chiller with integrated free cooling. It delivers ultra-efficient chilled water, making it an ideal backbone for liquid cooling infrastructures like CRAHs, CDUs, or FanWall systems. This approach combines the performance benefits of liquid cooling with the simplicity, reliability, and lower complexity of an air-cooled design. Read more about the advantages of air cooling and the benefits of flexible cooling strategies.
How energy-efficient is CritiCool-X?
The most apparent measure of CritiCool-X’s energy efficiency is its industry-leading PUE of less than 1.15. But it’s not the only one. With a true WUE of 0 and significant reductions in total energy costs, CritiCool-X sets a new standard for efficient, sustainable cooling. Read more about data center energy efficiency metrics.
How does CritiCool-X support sustainability efforts for data centers?
CritiCool-X helps reduce environmental impact through its closed-loop, air-cooled design with a WUE of 0, eliminating the need for evaporative water. Its energy-efficient components, like EC fans and VFD pumps, lower overall power consumption, while smart controls prevent overcooling and waste. Together, these features support ESG goals and contribute to long-term sustainability strategies. Read more about the role of cooling in green data centers.
Can I customize CritiCool-X to fit my data center's needs?
Yes. All AIRSYS cooling solutions can be tailored to your facility to optimize performance, reduce power consumption, and increase operational efficiency. Talk to our specialists today to discuss the best options for your deployments.
How does modular cooling improve deployment timelines?
Modular cooling speeds up deployment by using prefabricated, standardized components that streamline manufacturing and reduce on-site construction. CritiCool-X is built with standardized sub-modules that support parallel production, enabling shorter lead times and faster installation in high-demand environments. Read more about the features and design of scalable cooling systems.

Proven Cooling Technology Meets Trusted Support

Choose AIRSYS. Invest in your success.

CritiCool-X is backed by more than 30 years of experience, world-class R&D, and a commitment to innovation, reliability, and sustainability. Experience unparalleled efficiency for your cooling needs, backed by a partnership mindset grounded in trust, support, and shared success.

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