Liquid/liquid cooling distribution unit CDU-L2L

cabinetfor data centers

Floor-Standing Liquid-to-Liquid Cooling Distribution Unit for High-Density Liquid Cooling Loops
The EXTRCOOL cabinet-style Liquid-to-Liquid (L2L) Cooling Distribution Unit is a high-capacity, floor-standing CDU engineered for mission-critical liquid cooling in AI and HPC data centers. Optimized for integration with high-power GPU servers (e.g., NVIDIA GB200/GB300 and next-generation platforms), it transfers waste heat from server cold-plate loops to facility chilled-water systems and supports rack power densities up to multi‑MW.

Core Technical Advantages

• High-Capacity Liquid-to-Liquid Heat Exchange — Large-scale plate heat exchangers enable efficient transfer of server loop heat to chilled-water systems, supporting multi‑MW cooling capacities for high-density AI clusters.
• Floor-Standing, Scalable Design — Compact cabinet footprint with modular expansion and parallel operation capability to meet growing cooling demands.
• Factory-Integrated Components — Pre-assembled with variable-speed pumps, precision flow meters, pressure sensors and leak detection for faster deployment.
• Intelligent Control & Monitoring — Touchscreen HMI with real-time temperature, flow and pressure monitoring; supports remote management and BMS integration.
• Enterprise-Grade Availability — Continuous 24/7 design with redundant pump options, corrosion-resistant piping and leak‑proof connections to ensure mission-critical uptime.

Product Specifications (summary)
Brand: EXTRCOOL
Model Series: CDU-L2L Cabinet Series
Cooling Type: Liquid-to-Liquid (L2L) chilled-water heat exchange
Product Category: Floor-Standing Cooling Distribution Unit
Compatible Systems: Server cold-plate loops; chilled-water networks
Place of Origin: Guangdong, China
Available Models: EXT-CDU300LC, EXT-CDU600LC, EXT-CDU1000LC, EXT-CDU1600LC, EXT-CDU2000LC
Rated Cooling Capacity: 300 kW | 600 kW | 1000 kW | 1600 kW | 2000 kW
Secondary Coolant: PG25 (all models)
Operating Environment (T & H): -10°C ~ 55°C / RH 5~90%
Storage Environment (T & H): -45°C ~ 70°C / RH 5~93%
Display: 10.1" touchscreen (all models)
Approach Temperature: 5°C
Secondary Side Rated Flow: 500 LPM | 1000 LPM | 1800 LPM | 2500 LPM | 3200 LPM
Power Supply: 3P AC380V 50/60Hz or 3P AC480V 60Hz
Dual Power ATS: Yes
Leak Detection: Yes
Redundant Pump Auto-Switchover: 1+1
Control Type: PID, flow adjusted by temperature
Communication: Modbus RTU & TCP/IP
Protection Level: IP55

Ideal Application Scenarios

• Large-Scale AI Data Centers: Supports multi‑MW liquid cooling deployments for GB200/GB300 GPU clusters.
• HPC & Supercomputing Facilities: Provides high-capacity cooling for scientific computing and simulation workloads.
• New-Build Liquid Cooling Data Centers: Optimized for facilities with chilled-water infrastructure.
• Ultra-High Power Density Racks: Supports 50 kW+ rack loads for next‑generation AI and HPC servers.
• Scalable Liquid Cooling Architectures: Modular design enables incremental expansion as cooling demands grow.

Why Choose EXTRCOOL Cabinet-Style L2L CDU?
The EXTRCOOL cabinet-style L2L CDU combines large-capacity plate heat exchange, integrated control and monitoring, and a modular cabinet design to deliver reliable, high-capacity heat rejection for demanding AI and HPC deployments while supporting remote management and standard facility integration.

Frequently Asked Questions

• 1. What is a Liquid-to-Liquid CDU used for?
  A Liquid-to-Liquid CDU transfers waste heat from server liquid-cooling loops to facility chilled-water systems to enable high-capacity heat rejection in large liquid-cooled data centers.
• 2. What are the benefits of a cabinet-style L2L CDU?
  Cabinet-style, floor-standing CDUs provide high cooling capacity, modular scalability and integrated monitoring—suitable for large AI and HPC data centers with chilled-water systems.
• 3. Is the unit compatible with standard chilled-water systems?
  Yes. EXTRCOOL CDU supports standard chilled-water pressures and temperatures and offers customizable connections to match most facility chilled-water networks.

Technical specifications (high level)

• Model examples: EXT-CDU300LC / EXT-CDU600LC / EXT-CDU1000LC / EXT-CDU1600LC / EXT-CDU2000LC
• Installation Type: In-Row / Floor-Standing
• Typical Power Consumption: <7.5 kW | <12 kW | <18 kW | <25 kW | <32 kW (by model)
• Bypass Online Replaceable Filter: Yes
• Approx. Weight: 550 kg | 800 kg | 1300 kg | 1800 kg | 2200 kg
• Dimensions (W x D x H) mm: 600×1200×2000 (300/600); 1200×1500×2000 (1000/1600); 1200×1500×2200 (2000)