The DCX Facility Distribution Unit (FDU) is a centralized coolant distribution unit used in direct liquid cooling systems for large-scale server clusters, including GPU-intensive environments. It is installed outside the white space, engineered to serve entire data halls. It replaces dozens of scattered Coolant Distribution Units (CDUs), simplifies cooling infrastructure, and significantly reduces the risk of failure near mission-critical IT hardware. FDU eliminates the legacy model of numerous distributed small cooling loops, each with its own CDU, pump, and heat exchanger, and replaces them with a single, high-capacity unit supporting the entire IT zone through centralized supply and return loops. This relocation fundamentally changes both the cooling architecture and the physical design of data centers.
DCX Facility Distribution Units (FDUs)
The new standard in AI data centers
- Supporting rapid increases in rack power density without redesigning the entire system.
- Freeing up valuable floor area for more racks and higher equipment density.
- Maintaining reliability with fully redundant pumps and critical components.
- Enabling proactive diagnostics through centralized monitoring and onboard sensors.
- Providing flexible capacity with a customizable plate heat exchanger.
- Aligning with the unprecedented growth of AI-driven computing.
- Full compliance with Tier 3 Uptime Institute requirements.
DCX FDU 5MW AT4
The Facility Distribution Unit (FDU) defines a new category of high-capacity Coolant Distribution Units, engineered not for individual rack rows but for complete data halls/facility installations in hyper-scale data centers, efficiently cooling large-scale, high-density AI server racks. FDU offers a heat transfer capacity of 5 MW at an approach temperature of approximately 4°C, with a flow rate of 376 m3/h (secondary side TCS). Advanced features include a highly available N+1 redundant pump system of 4 pumps, condensation-free control, automatic coolant leveling, leak detection, and remote monitoring of essential parameters. Designed for high-performance computing (HPC) and GPU-intensive clusters, the FDU utilizes ASHRAE W3/ W4 warm water to meet the stringent cooling needs of hyperscale environments.
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DCX FDU 8MW AT4
The Facility Distribution Unit (FDU) defines a new category of high-capacity Coolant Distribution Units, engineered not for individual rack rows but for complete data halls/facility installations in hyper-scale data centers, efficiently cooling large-scale, high-density AI server racks. FDU offers a heat transfer capacity of 8 MW at an approach temperature of approximately 2°C with a flow rate of 550 m3/h (secondary side TCS). Advanced features include a highly available N+1 redundant pump system of 4 pumps, condensation-free control, automatic coolant leveling, leak detection, and remote monitoring of essential parameters. Designed for high-performance computing (HPC) and GPU-intensive clusters, the FDU utilizes ASHRAE W3/ W4 warm water to meet the stringent cooling needs of hyperscale environments.
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We’re DCX, a team of liquid cooling experts. We pride ourselves on being at the forefront of sustainable innovation, and developing unique and smart solutions for the data center and telecommunication sector. Our goal is to create future industry standards in liquid cooling technology and to transform the industry forever.
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