Coolant Distribution Unit(CDU)
This system provides high-efficiency liquid-to-liquid cooling in a standalone, row-integrated form. Designed for AI and dense compute loads, it features LCD touch control, redundant pumps, and closed-loop reliability—supporting both new builds and retrofits with minimal infrastructure impact.
Runtime: Continuous
Advantages
Seamless Infrastructure Integration
Intelligent and Reliable Operation
The In-Row CDU installs effortlessly alongside standard server racks, offering a compact footprint that supports both new data center builds and retrofit projects. Its row-based configuration minimizes disruption and adapts to existing layouts with ease.
Built with an intuitive LCD touchscreen and dual-redundant pumps, the system ensures continuous, precision-controlled cooling. Designed to meet the demands of high-density AI and HPC environments, it delivers consistent performance and operational resilience.
Closed-Loop, Facility-Free Design
With a fully closed-loop cooling architecture, the In-Row CDU eliminates the need for facility water piping or major mechanical overhauls. This simplifies deployment while enhancing system independence and long-term efficiency.
Why we need CDU?
As data centers evolve to support AI, HPC, and ultra-dense compute clusters, traditional air-cooling systems are quickly reaching their performance and efficiency limits. Rising chip power densities, space constraints, and sustainability goals demand a more advanced, precise, and scalable cooling approach. This is where Coolant Distribution Units (CDUs) play a critical role—bridging facility cooling infrastructure with high-performance liquid cooling technologies in a compact, intelligent form.
Growing Thermal Demands
AI and GPU workloads generate significantly higher heat densities that traditional AC systems can't efficiently manage.
Efficiency and Sustainability
Closed-loop CDUs minimize energy consumption, eliminate water waste, and lower total cost of ownership.
How it works?
Efficient Use of Facility Infrastructure
Instead of overloading HVAC systems or reconfiguring entire data hall piping, this architecture allows targeted liquid cooling while integrating seamlessly with existing facility resources.
Two Independent Cooling Loops for Precision and Safety
The system separates the rack-side coolant (e.g., PG25) from facility water, ensuring safe, targeted cooling for electronics while offloading heat via chillers or economizers.
Direct Liquid Cooling at the Rack Level
DLC racks are connected directly to the CDU, which circulates coolant through cold plates or RDHx units. This removes heat at the source, delivering much higher efficiency compared to traditional air cooling.
CDU as the Intelligent Bridge
The CDU regulates temperature, flow rate, and pressure between both loops. It acts as the interface, absorbing heat from the IT side and transferring it safely to the facility side without cross-contamination of fluids.
Optional Chiller & Economizer for Flexibility
The system can use either a chiller (for controlled environments) or an economizer (like a dry cooler) for free cooling in colder climates—allowing for adaptable and energy-efficient heat rejection.