Liquid cooling system EXT-CDU300LC

waterglycol watercomputer room

Overview
The EXTRCOOL Cabinet-Style Liquid-to-Liquid (L2L) Cooling Distribution Unit (CDU) is a floor-standing solution engineered for mission-critical liquid cooling in AI and HPC data centers. It interfaces server cold-plate loops with facility chilled-water systems to support high-density GPU clusters and multi-megawatt rack loads.

Core Technical Advantages

• High-capacity L2L heat exchange — Plate heat exchangers transfer waste heat from server loops to chilled water networks to support multi‑MW cooling capacities.
• Floor-standing, scalable cabinet design — Compact footprint with modular expansion and parallel operation for growing cooling demands.
• Factory-integrated systems — Pre-assembled variable-speed pumps, precision flow meters, pressure sensors and leak detection for rapid deployment.
• Intelligent control & monitoring — Touchscreen HMI with real-time temperature, flow and pressure data; remote management and BMS integration supported.
• Enterprise-grade availability — 24/7 continuous operation design with redundant pumps, corrosion-resistant piping and leak-proof connections.

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

Ideal Application Scenarios

• Large-scale AI data centers — Supports multi‑MW liquid cooling deployments for NVIDIA GB200/GB300 and next-generation GPU clusters.
• HPC & supercomputing — High-capacity cooling for scientific computing and simulation workloads.
• New-build liquid-cooled facilities — Optimized for chilled-water infrastructure.
• Ultra-high power density racks — Supports 50 kW+ rack loads for next-generation servers.
• Scalable liquid-cooling architectures — Modular design enables incremental expansion.

Why EXTRCOOL Cabinet-Style L2L CDU
The cabinet-style L2L CDU combines efficient plate heat exchange, integrated controls and a scalable cabinet form factor to provide reliable, high-capacity heat rejection for demanding AI and HPC deployments while enabling remote monitoring and facility integration.

Frequently Asked Questions (selected)

• What is a Liquid-to-Liquid CDU used for? It transfers waste heat from server liquid loops to facility chilled-water systems to enable high-capacity heat rejection.
• Why choose a cabinet-style L2L CDU? Floor-standing cabinets offer large cooling capacity, modular scalability and integrated monitoring suitable for large AI/HPC data centers with chilled-water networks.
• Is the unit compatible with standard chilled-water systems? Yes. The unit supports standard chilled-water pressures and temperatures with customizable connections to match facility networks.

Technical Specifications

• Models & rated cooling capacities: EXT-CDU300LC — 300 kW; EXT-CDU600LC — 600 kW; EXT-CDU1000LC — 1000 kW; EXT-CDU1600LC — 1600 kW; EXT-CDU2000LC — 2000 kW.
• Installation Type: In Row.
• 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 (all models).
• Primary side inlet/outlet temp (primary loop): 35°C / 45°C.
• Secondary side liquid temp (out/in): 40°C / 50°C (all models).
• Secondary rated flow: EXT-CDU300LC — 500 LPM; EXT-CDU600LC — 1000 LPM; EXT-CDU1000LC — 1800 LPM; EXT-CDU1600LC — 2500 LPM; EXT-CDU2000LC — 3200 LPM.
• Power supply: 3P AC 380V 50/60Hz; 3P AC 480V 60Hz.
• Dual power ATS: Yes (all models).
• Leak detection: Yes (all models).
• Redundant pump automatic switchover: 1+1 (all models).
• Typical power consumption by model: <7.5 kW (300 kW); <12 kW (600 kW); <18 kW (1000 kW); <25 kW (1600 kW); <32 kW (2000 kW).
• Bypass online replaceable filter: Yes (all models).
• Control: PID control; flow adjusts to temperature.
• Communication: Modbus RTU & TCP/IP.
• Approx. weight: EXT-CDU300LC — 550 kg; EXT-CDU600LC — 800 kg; EXT-CDU1000LC — 1300 kg; EXT-CDU1600LC — 1800 kg; EXT-CDU2000LC — 2200 kg.
• Protection level: IP55 (all models).
• Dimensions (W × D × H) mm: EXT-CDU300LC / EXT-CDU600LC — 600 × 1200 × 2000 mm; EXT-CDU1000LC / EXT-CDU1600LC — 1200 × 1500 × 2000 mm; EXT-CDU2000LC — 1200 × 1500 × 2200 mm.