CDU 2.X Coolant Distribution Unit

High-capacity, redundant and built to order, the Row CDU 2.X is designed for end-of-row deployment in high-density AI and HPC data halls. It delivers up to 2.5 MW of cooling capacity at 4°C approach temperature difference (ATD) and hydraulically separates the Facility Water System (FWS) from the Technology Coolant System (TCS). The unit keeps its white space footprint small while supporting the redundant cooling architectures next-generation GPU deployments demand.

Standard Features

Built for AI deployments at scale

• One CDU. Any rack. Compatible with the full range of silicon architecture requirements
• Simplified deployment with fewer layers of complexity and fewer points of failure
• Build-your-own CDU, configured to order for different deployment architectures
• Flexible distribution architectures that adapt to evolving AI workloads
• Sustainable operation at lower approach temperatures and up to 45°C facility inlet temperature

Intelligent design and operation

• Dual concurrently maintainable pumps, designed to support Tier III and Tier IV redundancy
• Single pump mode for N+1 internal redundancy, or dual pump mode for unit-to-unit redundancy
• 3.5 bar / 50 psi available head at 3,750 lpm / 990 gpm for next-generation GPUs
• Ultra-low frequency VFDs that meet IEEE 519 with under 5% THDi, no extra hardware needed
• Differential pressure, flow rate or pump speed control modes
• Fast-acting control valves for quick thermal response to transient loads
• Drain pan with integrated leak detection
• Optional real-time fluid quality monitoring

Configurable options

• Control valve: fast-acting CCV or PICV
• Power redundancy: Dual Feed (A/B) or Dual Feed with ATS
• Top or bottom piping connections
• Modbus, RESTful API with Redfish, BACnet or SNMP communication
• Spot or rope leak detection
• Pressure safety valve setting of 6 or 9 bar
• Optional FWS electromagnetic flow meter
• Optional fluid quality monitoring with pH, turbidity and conductivity sensors