Air & liquid Cooling Distribution Unit(CDU)
Key Features & Benefits
As AI computing, high-density servers and HPC workloads continue to grow, traditional air cooling can no longer handle rising heat loads efficiently. This makes smart and cost-effective liquid cooling upgrades essential for modern data centers. Extrcool air liquid cooling CDU provides a practical, reliable and future-proof thermal management solution for new builds and old computer room renovations.The biggest advantage of the Extrcool air-liquid CDU is its excellent compatibility and easy deployment. Unlike full liquid cooling systems that require large-scale pipeline construction and civil engineering changes, our air-liquid hybrid design perfectly combines liquid cooling efficiency and air cooling simplicity. It works with existing air-conditioning environments and supports mixed air-and-liquid server deployment. No complex on-site reconstruction is needed, which greatly saves renovation investment and shortens project delivery time.
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1. Drop-In Liquid Cooling for Air-Cooled Data Centers The air-liquid CDU eliminates the need for dedicated chilled water loops or room retrofits, allowing you to deploy high-performance liquid-cooled servers in existing air-cooled facilities. This enables a phased, low-cost transition to liquid cooling without disrupting ongoing operations.
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2. Space-Efficient 6U Rack-Mount Design Built to fit standard 19-inch server racks with a compact 6U height, the unit integrates seamlessly with most industry-standard cabinets. Its streamlined footprint maximizes rack space while delivering robust cooling performance, making it suitable for both new builds and retrofits.
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3. High Cooling Performance at Standard Ambient Temperatures At a room ambient temperature of 25°C, the unit delivers reliable cooling for up to 13kW of liquid-cooled server load. Its optimized heat exchanger design minimizes temperature differentials, ensuring the coolant supply temperature stays at or below 40°C under rated conditions, maintaining stable server operating temperatures.
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4. Corrosion-Resistant, Coolant-Compatible Construction Constructed with stainless steel piping and all-copper heat exchangers, the unit offers exceptional compatibility with common liquid cooling coolants. This robust material choice prevents corrosion, scaling, and degradation, ensuring long-term reliability with minimal maintenance.
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5. Redundant Components for 24/7 Reliability ·Dual-pump 1+1 redundancy: Eliminates single points of failure in the coolant circulation system, with automatic speed adjustment to match real-time cooling load demands. ·Dual-fan design: Automatically adjusts airflow based on thermal conditions to maintain optimal cooling efficiency while minimizing operating noise. ·Dual-power 1+1 redundancy: Ensures uninterrupted operation even if one power supply fails, protecting mission-critical workloads from downtime.
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6. Advanced Filtration & Condition Monitoring A high-density coolant filter provides precise, reliable protection for server cold plates and quick connectors, preventing particulate contamination and extending the lifespan of critical components. The system continuously monitors room temperature, equipment exhaust air temperature, coolant supply/return temperatures, and fluid pressures, while dynamically adjusting coolant flow and temperature to maintain stable conditions.
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7. Intuitive Local & Remote Control A 7-inch touchscreen interface provides real-time visibility into system status, including operating parameters, alarms, and self-diagnostic results, with on-device controls for quick adjustments. Remote monitoring and integration with building management systems (BMS) are supported via TCP/ModBUS protocols, enabling centralized oversight across the data center.
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8. Simplified Deployment & Maintenance The unit features an automatic/manual water replenishment system that streamlines initial commissioning, daily operation, and routine maintenance. This reduces on-site labor requirements, minimizes downtime during servicing, and ensures consistent coolant levels for reliable performance.
Product Specification
| Nominal cooling capacity |
13kW, Environmental temperature 25 ℃, relative humidity RH50%, supply temperature 40 ℃ |
| Air volume | The maximum air volume shall not be less than 2200m3/h |
| water pump | Dual pump design (1+1 redundancy) |
| Coolant | Deionized water, 25% propylen e glycol solution, and other compatible cooling fluids |
| hydraulic performance | Flow rate 24LPM, external residual pressure 1 bar |
| Liquid cooling circuit | The maximum operating pressure is 1.5 bar, and the pipeline test pressure is 10 bar |
| moisturizing | Automatic water replenishment, when the system pressure is lower than the set pressure |
| filter | Built in 100 μ m filter |
| External Interface | Rear panel, 1-inch chuck interface, convertible quick connect interface (quick connect ball valve) |
| power supply | Dual power supply, ATS,220v AC(50/60Hz)/24V DC |
| Typical power consumption | 950W |
| controller | Standard liquid cooled controller, ARM processor, DDR RAM, 7 " touch screen human-machine interface |
| firmware | Liquid cooling control firmware, monitoring liquid cooling circuit parameters, including coolant supply and return water temperature, |
| System Alarm | Pressure, air-cooled inlet temperature, outlet temperature, etc“ |
| group control | Remind through display screen or communicate with environmental control through TCP/ Modbus RS485 |
| External dimensions | Through CANBUS, achieve group control with other liquid cooling equipment and control devices (CDU) |
| weight | 445mm wide x 960mm deep x 266.7mm high |
| working conditions | Net weight 80kg, net weight 90kg, operating weight 96kg, transportation weight 95kg |



