Water cooling system

glycol waterdata centerrack-mount

Product Overview
The EXTRCOOL Air-to-Liquid CDU (Cooling Distribution Unit) is a compact, rack-ready hybrid cooling solution designed to bring liquid cooling capabilities to traditional air-cooled data centers without costly infrastructure retrofits. Through high-efficiency air-to-liquid heat exchange, it dissipates heat from liquid-cooled servers directly into the room air, enabling fast, low-risk deployment of high-density liquid-cooled hardware in standard server environments. With a space-saving 6U form factor, it supports liquid-cooled server loads up to 13 kW, making it suitable for incremental upgrades and mixed-cooling deployments.

Key Features & Benefits

• Drop-In Liquid Cooling for Air-Cooled Data Centers — Eliminates the need for dedicated chilled water loops or room retrofits; enables phased, low-cost transition to liquid cooling without disrupting operations.
• Space-Efficient 6U Rack-Mount Design — Built to fit standard 19-inch server racks with a compact 6U height to maximize rack space while delivering robust cooling performance.
• High Cooling Performance at Standard Ambient Temperatures — At 25 °C ambient, delivers reliable cooling for up to 13 kW of liquid-cooled server load; optimized heat exchanger keeps coolant supply temperature at or below 40 °C under rated conditions.
• Corrosion-Resistant, Coolant-Compatible Construction — Stainless steel piping and all-copper heat exchangers for compatibility with common cooling fluids; resists corrosion, scaling and degradation.
• Redundant Components for 24/7 Reliability — Dual-pump (1+1) redundancy, dual-fan design with automatic adjustment, and dual-power (1+1) redundancy to eliminate single points of failure.
• Advanced Filtration & Condition Monitoring — High-density coolant filter to protect cold plates and connectors; continuous monitoring of room temperature, exhaust temperature, coolant supply/return temperatures and fluid pressures with dynamic adjustment.
• Intuitive Local & Remote Control — 7-inch touchscreen for on-device control and real-time status; remote monitoring and BMS integration via TCP/ModBUS protocols for centralized oversight.
• Simplified Deployment & Maintenance — Automatic/manual water replenishment system to streamline commissioning, daily operation and routine maintenance, reducing on-site labor and downtime.

Product Specification
Nominal cooling capacity: 13 kW (environmental temperature 25 °C, relative humidity RH50%, supply temperature 40 °C)
Air volume: The maximum air volume shall not be less than 2200 m3/h
Water pump: Dual pump design (1+1 redundancy)
Coolant: Deionized water, 25% propylene glycol solution, and other compatible cooling fluids
Hydraulic performance: Flow rate 24 LPM, external residual pressure 1 bar
Liquid cooling circuit: Maximum operating pressure 1.5 bar; pipeline test pressure 10 bar
Moisturizing: Automatic water replenishment when system pressure is lower than set pressure
Filter: Built-in 100 μm filter
External interface: Rear panel, 1-inch chuck interface, convertible quick connect interface (quick connect ball valve)
Power supply: Dual power supply, ATS, 220 V AC (50/60 Hz) / 24 V DC
Typical power consumption: 950 W
Controller: Standard liquid-cooled controller, ARM processor, DDR RAM, 7" touchscreen human-machine interface
Firmware: Liquid cooling control firmware monitoring circuit parameters including coolant supply and return temperatures
System alarm: Pressure, air-cooled inlet temperature, outlet temperature, etc.
Group control: Remind through display screen or communicate with environmental control through TCP/Modbus RS485; through CANBUS achieve group control with other liquid cooling equipment and control devices (CDU)
External dimensions: 445 mm wide x 960 mm deep x 266.7 mm high
Weight and working conditions: Net weight 80 kg, net weight 90 kg, operating weight 96 kg, transportation weight 95 kg

Technical Specifications

• Form factor: 6U rack-mount
• Rated cooling capacity: 13 kW (at 25 °C ambient, RH50%, supply 40 °C)
• Maximum air flow: ≥ 2200 m3/h
• Pump: Dual-pump 1+1 redundancy
• Coolant compatibility: Deionized water, 25% propylene glycol solution, and other compatible fluids
• Flow rate: 24 LPM; external residual pressure: 1 bar
• Max operating pressure (circuit): 1.5 bar; test pressure: 10 bar
• Filtration: Built-in 100 μm filter
• Fluid replenishment: Automatic/manual water replenishment
• Interface: Rear 1-inch chuck, convertible quick-connect (ball valve)
• Power: Dual power supply with ATS; 220 V AC (50/60 Hz) and 24 V DC support
• Typical power consumption: 950 W
• Controller & HMI: ARM processor, DDR RAM, 7" touchscreen
• Communications & control: TCP/Modbus RS485; CANBUS for group control
• Dimensions: 445 mm (W) x 960 mm (D) x 266.7 mm (H)
• Weights (as provided): Net weight 80 kg; net weight 90 kg; operating weight 96 kg; transportation weight 95 kg