Rack Mounted Liquid to Liquid Cooling CDU for AI Data Centers
Core Technical Advantages
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Compact Rack-Mount Form Factor Standard 4U rack design fits directly into server racks, eliminating the need for dedicated floor space and simplifying integration with chilled water networks.
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Efficient Liquid-to-Liquid Heat Exchange High-performance plate heat exchangers transfer waste heat from server loops to chilled water systems, supporting high heat loads for dense AI clusters.
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Integrated Monitoring & Control Front-mounted touchscreen HMI with real-time temperature, flow, and pressure monitoring, supporting remote management and BMS integration.
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Plug-and-Play Deployment Pre-configured piping, pumps, and sensors enable rapid connection to server manifolds and facility chilled water systems, cutting commissioning time.
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Leak-Proof, Enterprise-Grade Design Reinforced connections and factory pressure-tested components ensure reliable, 24/7 operation for mission-critical workloads.
Product Specifications
|
Attribute |
Specification |
|
Brand |
EXTRCOOL |
|
Model Series |
CDU-L2L Rack Series |
|
Cooling Type |
Liquid-to-Liquid (L2L) Chilled Water Heat Exchange |
|
Product Category |
Rack-Mounted Cooling Distribution Unit |
|
Form Factor |
4U standard rack |
|
Compatible Systems |
Server cold plate loops, chilled water networks |
|
Place of Origin |
Guangdong, China |
Ideal Application Scenarios
- Large-Scale AI Data Centers: Supports high-density liquid cooling deployments for GB200/GB300 GPU clusters.
- HPC & Supercomputing Facilities: Delivers reliable cooling for scientific computing and engineering simulation workloads.
- New-Build Liquid Cooling Data Centers: Optimized for facilities with existing chilled water infrastructure.
- Ultra-High Power Density Racks: Supports 50kW+ rack loads for next-generation AI servers.
- Modular Liquid Cooling Architectures: Ideal for scalable, incremental cooling deployments.
Why Choose EXTRCOOL Rack-Mounted L2L CDU?
The rack-mount form factor eliminates the need for standalone CDU units, offering a space-saving, high-capacity solution for liquid cooling deployments. EXTRCOOL’s L2L CDU combines efficient heat exchange, integrated monitoring, and simplified installation to meet the demanding needs of AI and HPC workloads, ensuring stable, energy-efficient operation year-round.
Frequently Asked Questions
1.What is a rack-mounted L2L CDU used for?
A rack-mounted L2L CDU transfers waste heat from server liquid cooling loops to facility chilled water systems in a compact rack form factor, ideal for space-constrained data centers with chilled water infrastructure.
2.What are the benefits of a rack-mounted vs. standalone L2L CDU?
The rack-mount design fits directly into server racks, reducing piping complexity and eliminating the need for dedicated floor space. It is fully pre-tested at the factory, minimizing on-site installation errors and ensuring consistent performance.
3.Is the unit compatible with standard chilled water systems?
EXTRCOOL’s rack-mounted L2L CDU supports standard chilled water pressures and temperatures, with customizable connections to match most facility chilled water networks. Contact our engineering team for tailored compatibility verification.
Product Specification
| Liquid-to-Liquid Cooling Distribution Unit (L2L CDU) | |||||||
| Model Number | EXT-CDU35LR | EXT-CDU50LR | EXT-CDU100LR | EXT-CDU120LR | EXT-CDU150LR | EXT-CDU200LR | EXT-CDU250LR |
| Installation Type | In Rack | ||||||
| Rated cooling capacity | 35kW | 50kW | 100kW | 120kW | 150KW | 200KW | 250KW |
| Coolant | PG25 | PG25 | PG25 | PG25 | PG25 | PG25 | PG25 |
| Working environmentT&H | -10℃~55℃/ RH5~90% | ||||||
| Storage environmentT&H | -45℃~70℃/RH5~93% | ||||||
| Inch display screen | 4.3" | 4.3" | 4.3” | 7" | 7" | 7" | 7" |
| Approach temperature | 5℃ | 5℃ | 5℃ | 5℃ | 5℃ | 5℃ | 5℃ |
| Primary side air or liquid temp.(in/ out) | 35℃/45℃ | ||||||
| Secondary side liquid temp.(out/ in) | 40℃/45℃ | 40°C/45℃ | 40℃/50℃ | 40℃/50℃ | 40°C/50℃ | 40℃/50℃ | 40℃/50℃ |
| Secondary side rated flow rate | 120LPM | 160LPM | 160LPM | 190LPM | 240LPM | 320LPM | 400LPM |
| Power Supply | AC220V 50/60Hz | 3P AC380V 50/60Hz 3P AC480V 60Hz |
|||||
| Dual power ATS | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
| Leak Detection | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
| Redundant Pump Automatic Switchover | 1+1 | 1+1 | 1+1 | 1+1 | 1+1 | 1+1 | 1+1 |
| Power consumption | <0.8kW | <0.8kW | <0.8kW | <1kW | <2.5KW | <2.8KW | <3KW |
| Bypass Online Replaceable Filter | No | No | No | No | No | No | No |
| Control type | PID control method, Adjust flow rate according to temperature | ||||||
| Communication | Modbus RTU&TCP/IP | ||||||
| Approx. Weight | 50kg | 65kg | 75kg | 85kg | 80kg | 100kg | 110kg |
| Protection level | IP55 | IP55 | IP55 | IP55 | IP55 | IP55 | IP55 |
| Dimensions(Wx D x H) mm | 482x870x177.8 | 482x870x177.8 | 482x870x177.8 | 482x870x217.2 | 482x870x217.2 | 482x870x265 | 482x870x265 |






