Liquid cooling system EXT-CDU60AC

glycol waterfor CPUsdata center

Product Overview
The EXTRCOOL Cabinet-Style Liquid-to-Air (LTA) Cooling Distribution Unit is a compact, all-in-one CDU designed for high-density liquid cooling deployments in AI and HPC data centers. It integrates liquid-to-air heat exchange, pumping, and intelligent controls within a standard rack footprint, enabling simplified liquid cooling for new and retrofitted data centers. The unit is designed to pair with high-performance GPU servers (e.g., NVIDIA GB200/GB300 and next-generation GPU servers) and deliver reliable thermal performance for rack power densities beyond 30 kW while avoiding the need for chilled water infrastructure.

Core Technical Advantages

• All-In-One Cabinet Form Factor Combines heat exchangers, high-static fans, variable-speed pumps, and a smart control system into a single cabinet for seamless, plug-and-play integration.
• Efficient Liquid-to-Air Heat Rejection Directly dissipates waste heat from server cold plate loops to ambient air, eliminating the need for external chilled water systems and reducing infrastructure complexity.
• Rack-Ready, Space-Saving Design Built to standard rack dimensions, the unit fits into existing data center layouts and supports side-by-side installation with server racks for simplified piping.
• Intelligent Variable-Speed Control Dynamic fan and pump adjustment based on coolant temperature minimizes power consumption and lowers data center PUE.
• Enterprise-Grade Reliability Factory-tested components and reinforced piping designed for leak-proof, 24/7 operation for mission-critical workloads.

Product Specifications (summary)
Brand: EXTRCOOL
Model Series: CDU-LTA Cabinet Series
Cooling Type: Liquid-to-Air (LTA) Direct Heat Rejection
Product Category: Rack-Mounted Cooling Distribution Unit
Compatible Systems: Server cold plate loops, liquid cooling racks
Place of Origin: Guangdong, China
Part Numbers / Variants: EXT-CDU60AC | EXT-CDU120AC | EXT-CDU300AC | EXT-CDU600AC
Installation Type: In Row
Rated Cooling Capacity (variants): 60 kW | 120 kW | 300 kW | 600 kW
Coolant: PG25
Working Environment (T & H): -10°C ~ 55°C / RH 5% ~ 90%
Storage Environment (T & H): -45°C ~ 70°C / RH 5% ~ 93%
Display: 10.1" inch screen
Approach Temperature: 10°C
Primary side air or liquid temp. (in/out): 25°C / 35°C
Secondary side liquid temp. (out/in): 35°C / 45°C
Secondary side rated flow rate (variants): 100 LPM | 200 LPM | 500 LPM | 1000 LPM
Power Supply: AC220V 50/60Hz (smaller variant) ; 3P AC380V 50/60Hz or 3P AC480V 60Hz (larger variants)
Dual Power ATS: Yes
Leak Detection: Yes
Redundant Pump Automatic Switchover: 1+1
Power Consumption (approx.): <3.5 kW | <6 kW | <15 kW | <30 kW
Bypass Online Replaceable Filter: Yes
Control Type: PID control method, adjusts air volume and flow rate according to temperature
Communication: Modbus RTU & TCP/IP
Approx. Weight (variants): 350 kg | 480 kg | 850 kg | 1700 kg
Protection Level: IP55
Dimensions (W x D x H) mm (variants): 600 x 1200 x 2000 | 1200 x 1200 x 2000 | 3000 x 1200 x 2000 | 6000 x 1200 x 2000

Ideal Application Scenarios

• Traditional Data Center Retrofit: Enables cost-effective liquid cooling upgrades for existing air-cooled facilities without chilled water infrastructure.
• Medium-to-High Power Density Racks: Supports 15–30 kW rack loads for AI training servers and HPC clusters.
• Edge & Colocation Data Centers: Compact cabinet-style form factor fits space-constrained deployments.
• Hybrid Liquid Cooling Architectures: Suitable for phased rollouts combining air-cooled and liquid-cooled racks.
• Small-to-Mid-Scale AI Clusters: Simplified, low-maintenance cooling for small-scale GPU deployments.

Frequently Asked Questions

• What is a Liquid-to-Air CDU used for? A Liquid-to-Air CDU is a compact, rack-mounted unit that directly rejects waste heat from liquid cooling loops to ambient air, avoiding the need for chilled water systems and simplifying liquid cooling deployments.
• What are the benefits of a cabinet-style LTA CDU over standalone units? The cabinet form factor enables side-by-side installation with server racks, reduces piping complexity, eliminates external heat rejection infrastructure, and is factory pre-tested to minimize on-site commissioning time.
• Is the unit compatible with server cold plate systems? The cabinet-style LTA CDU supports standard liquid loop pressures and temperatures and provides customizable flange connections to match most server cold plate systems.

caractéristiques / spécifications techniques

• Brand: EXTRCOOL
• Model series: CDU-LTA Cabinet Series
• Product type: Liquid-to-Air Cooling Distribution Unit (L2A CDU)
• Part numbers: EXT-CDU60AC, EXT-CDU120AC, EXT-CDU300AC, EXT-CDU600AC
• Rated cooling capacity range: 60 kW to 600 kW (model-dependent)
• Coolant: PG25
• Installation: In-row / rack-mounted
• Secondary side rated flow rate: 100–1000 LPM depending on variant
• Power supply options: AC220V 50/60Hz; 3P AC380V 50/60Hz; 3P AC480V 60Hz
• Redundant pumps: 1+1 automatic switchover
• Leak detection: Yes
• Control: PID control, variable-speed fans and pumps
• Communication: Modbus RTU & TCP/IP
• Protection: IP55
• Approx. weight: 350 kg to 1700 kg (variant-dependent)
• Dimensions (W x D x H) mm: 600 x 1200 x 2000 up to 6000 x 1200 x 2000 depending on variant
• Power consumption (approx.): <3.5 kW to <30 kW depending on model