Rack-Mounted Liquid-to-Air CDU for AI & AI Data Centers
Core Technical Advantages
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Standard Rack-Mount Form Factor Compact 4U/6U design fits directly into standard server racks, eliminating the need for external floor space and simplifying integration with server cold plate loops.
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Direct Liquid-to-Air Heat Rejection Efficiently dissipates waste heat from liquid cooling loops to ambient air, removing the dependency on chilled water systems and reducing infrastructure costs.
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Plug-and-Play Integration Pre-configured piping, pumps, and control interfaces enable rapid connection to manifolds and server cold plates, cutting on-site commissioning time.
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Smart Variable-Speed Operation Dynamic fan and pump adjustment based on coolant temperature minimizes power consumption, lowering data center PUE for sustainable green computing.
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Enterprise-Grade Reliability Factory pressure-tested components and reinforced seals ensure leak-proof, 24/7 operation for mission-critical data center workloads.
Product Specifications
|
Attribute |
Specification |
|
Brand |
EXTRCOOL |
|
Model Series |
CDU-LTA Rack Series |
|
Cooling Type |
Liquid-to-Air (LTA) Direct Heat Rejection |
|
Product Category |
Rack-Mounted Cooling Distribution Unit |
|
Form Factor |
4U / 6U standard rack |
|
Compatible Systems |
Server cold plate loops, rack-level liquid cooling manifolds |
|
Place of Origin |
Guangdong, China |
Ideal Application Scenarios
- Traditional Data Center Retrofit: Low-cost liquid cooling upgrades for existing air-cooled facilities without chilled water infrastructure.
- Medium-to-High Power Density Racks: Supports 15–30kW rack loads for AI training servers and HPC clusters.
- Edge & Colocation Data Centers: Compact rack-mount design fits space-constrained deployments.
- Hybrid Liquid Cooling Architectures: Ideal for phased liquid cooling rollouts, combining air-cooled and liquid-cooled racks.
- Small-to-Mid-Scale AI Clusters: Simplified, low-maintenance cooling for small-scale GPU deployments.
Why Choose EXTRCOOL Rack-Mounted LTA CDU?
The rack-mount form factor eliminates the need for standalone CDU units, offering a space-saving, low-cost solution for transitioning to liquid cooling. EXTRCOOL’s LTA CDU combines high thermal efficiency, simplified installation, and intelligent controls to meet the evolving needs of AI and HPC workloads, ensuring stable, low-noise, and energy-efficient operation year-round.
Frequently Asked Questions
1.What is a rack-mounted LTA CDU used for?
A rack-mounted LTA CDU is a compact, rack-integrated unit that directly rejects waste heat from liquid cooling loops to ambient air, eliminating the need for external heat rejection infrastructure. It is ideal for data centers seeking simplified, space-efficient liquid cooling deployments.
2.What are the benefits of a rack-mounted vs. standalone 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 from day one.
3.Is the unit compatible with all server cold plate systems?
EXTRCOOL’s rack-mounted LTA CDU supports standard liquid loop pressures and temperatures, with customizable flange connections to match most server cold plate and manifold systems. Contact our engineering team for tailored compatibility verification.
Product Specification
| Product Type | Liquid-to-Air Cooling Distribution Unit (L2A CDU) | |||
| Part Number | EXT-CDU6AR | EXT-CDU15AR | EXT-CDU24AR | EXT-CDU30AR |
| Installation Type | In Rack | |||
| Rated cooling capacity | 6kW | 15kW | 24kW | 30kW |
| Coolant | 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" | 7" | 7" |
| Approach temperature | 10℃ | 10℃ | 10℃ | 10℃ |
| Primary side air or liquid temp.(in/ out) | 25℃/35℃ | |||
| Secondary side liquid temp.(out/ in) | 35℃/45℃ | 35℃/45℃ | 35℃/45℃ | 35℃/45℃ |
| Secondary side rated flow rate | 10LPM | 25LPM | 40LPM | 50LPM |
| Power Supply | AC220V 50/60Hz | |||
| Dual power ATS | Yes | Yes | Yes | Yes |
| Leak Detection | Yes | Yes | Yes | Yes |
| Redundant Pump Automatic Switchover | 1+1 | 1+1 | 1+1 | 1+1 |
| Power consumption | <0.3kW | <1kW | <1.5kW | <3kW |
| Bypass Online Replaceable Filter | No | No | No | No |
| Control type | PID control method, Adju st air volume and flow rate according to temperature | |||
| Communication | Modbus RTU&TCP/IP | |||
| Approx. Weight | 40kg | 75kg | 105kg | 135kg |
| Protection level | IP55 | IP55 | IP55 | IP55 |
| Dimensions(Wx D x H) mm | 482x870x177.8 | 482x870x443 | 482x870x665 | 482x870x887 |