Coolant Distribution Unit for seamless heat transfer in Liquid Cooling solutions
As the heat density of server racks continues to increase at a rapid pace, Liquid Cooling systems have gained widespread acceptance as an effective method of heat dissipation. The STULZ Coolant Distribution Unit CyberCool CMU is a central component in both direct liquid-to-chip cooling and immersion cooling solutions to maximize heat exchange within a limited footprint. This unit completely isolates the facility water system (FWS) and technology cooling system (TCS) sides of the Liquid Cooling system and accurately controls the supply temperature and flow rate of the coolant while consuming minimal power.
Why STULZ CyberCool CMU
Product overview
Key benefits
- Year‑round Free Cooling possible (ASHRAE W32 – W+ warm‑water cooling)
- Wide range of structural, electrical, and control options
- Compatible with various liquids, power loads, and available with optional THDi filter
Key features
- Optimized heat exchanger for minimal temperature differences between FWS and TCS
- Variable‑speed pumps boost efficiency, eliminating the need for a liquid bypass
Key technical data
- Rated heat exchange (kW): 345 – 1,380
By isolating the FWS and TCS circuits, the risk of cross-contamination and leaks is significantly reduced, thereby enhancing the overall reliability of the cooling system. Furthermore, it allows for more precise control over each side of the cooling system, enabling better management of coolant flow rates, temperatures, and pressure, which in turn improves overall system efficiency.
With precise, flexible control, the CyberCool CMU delivers maximum reliability in continuous operation. The in‑house developed controller ensures perfectly aligned software, hardware, and cooling performance, while the touch display enables intuitive navigation.
- Full front and rear access for all maintenance tasks
- Pumps, valves, and key components equipped with front and rear shut‑off valves
- Remote monitoring of FWS/TCS filter status and TCS fluid level
- Sanitary‑grade quick‑release couplings for fast and easy disassembly
Seamless Liquid Cooling integration for mission‑critical IT
Our Coolant Distribution Unit (CDU) CyberCool CMU integrates seamlessly with both Immersion Cooling and Direct‑to‑Chip Liquid Cooling (DCLC) environments. As the central interface between facility water and IT cooling loops, it ensures stable, efficient, and precisely regulated heat transfer. Designed for high‑density, mission‑critical IT infrastructures, the CDU enhances system reliability, maximizes thermal performance, and supports the scalable liquid‑cooling architectures required for next‑generation data centers.
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