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CoolIT Systems has unveiled three new Coolant Distribution Units (CDUs): the AHx240, AHx180, and CHx500. These new models are custom-tailored to meet diverse cooling needs and deliver scalable, high-capacity solutions for a wide range of data center applications.
CoolIT Coolant Distribution Units (from left to right): AHx180, AHx240 and CHx500
All three CDUs are engineered to address the rigorous cooling demands of AI, high-performance computing (HPC), and enterprise computing applications. They deliver exceptional performance, density, efficiency, and reliability—particularly when integrated with servers equipped with CoolIT’s OMNI cold plates featuring Split-Flow technology and CoolIT manifolds. The company has designed these units to provide the high flow rates required for cutting-edge AI systems, while positioning them to set new industry benchmarks.
The AHx240 and AHx180 redefine standards for liquid-to-air CDUs. The AHx240 stands as the industry’s highest-capacity CDU, delivering over 240 kW within a 2-rack footprint, while the AHx180 offers 180 kW with a design optimized to operate within standard data center airflow ranges. These self-contained systems eliminate the need for external facility water, enabling data center operators to deploy the highest-density AI workloads without the high cost of investing in new infrastructure. The AHx240 liquid-to-air CDU can cool up to four NVIDIA GB200 racks, while the AHx180 is capable of cooling up to two.
CoolIT’s CHx500 liquid-to-liquid CDU provides scalable cooling for high-density computational workloads. Four CHx500 units can be stacked to deliver 2MW of heat management in a single rack. The CHx500 platform is the highest-performance, highest-density liquid-to-liquid CDU currently available. Its support for ASHRAE W45 cooling facilitates efficient heat reuse and establishes a new standard for sustainable, high-performance data center cooling solutions. A full stack of four CHx500 units (occupying one rack) can cool up to 58 racks of 21 x 2U DLC servers (at 14.7 kW per rack) or 1,218 DLC servers.
| Features | ||
| AHx180 Liquid-to-Air CDU | AHx240 Liquid-to-Air CDU | CHx500 Liquid-to-Liquid CDU |
| 180 kW cooling capacity at 15°C approach. | 240 kW cooling capacity at 15°C approach. | 500 kW cooling capacity at 5.5°C approach. |
| 2 x high-performance pumps. | 2 x high-performance pumps. | 3 pumps for N+1 redundancy. |
| 4 x high-efficiency fans. | 8 x high-efficiency fans. | Two A+B redundant, hot-swappable power supplies. |
| All stainless-steel piping. | All stainless-steel piping. | ASHRAE W45 warm water cooling capable. |
| Slim 2-rack footprint (1200 mm W x 1066 mm D / 47.2″ W x 41.9″ D). | 2-rack footprint (1200 mm W x 1200 mm D / 47.2″ W x 47.2″ D). | 11U height, allowing 4 CDU units + 3U coolant reservoir in single 48U rack. |
| Integrated sensors: flow, pressure, temperature, humidity, coolant level and leak detection. | Built-in sensors: flow, pressure, temperature, humidity, coolant level and leak detection | Built-in sensors: flow, pressure, temperature, humidity, coolant level and leak detection. |
| Integrated 50 µ serviceable filter with 25 µ to 150 µ options. | Integrated 50 µ serviceable filter with 25 µ to 150 µ options. | Optional 50 µ external filter |
| Group control for up to 20 units. | Group control for up to 20 units. | Group control for up to 4 units in 1 rack. |
| Integrated control and monitoring system (Redfish, SNMP, TCP/IP, Modbus, BACnet and others). | Integrated control and monitoring system (Redfish, SNMP, TCP/IP, Modbus, BACnet and others). | Integrated control and monitoring system (SSH, SNMP, TCP/IP, Modbus and others). |
| PLC-based control system with 10″ front panel touchscreen. | PLC-based control system with 10″ front panel touchscreen. | Built-in 7″ front panel touchscreen. |
| Multi-language support. | Multi-language support. | Multi-language support |
| Integrated fill pumps and reservoir. | Integrated fill pumps and reservoir. | Integrated fill pumps and reservoir. |
| Redundant pumps (2N) and fan (N+1). | Redundant pumps (2N) and fans (N+1). | Redundant pumps (N+1) and power supplies |
| Optional ATS. | Optional ATS. | |
| Field replaceable fans, pumps, piping and sensors. | Field replaceable fans, pumps, piping and sensors. | All stainless-steel piping |
| Easily accessible drain and reservoir tanks. | Easily accessible drain and reservoir tanks. | Easily accessible drain and reservoir tanks |
We reviewed CoolIT Systems in May and retrofitted a Dell PowerEdge R760 with CoolIT’s cold plates, manifold, and L2A CDU. Our findings revealed significant benefits, including dramatically reducing fan usage and electricity consumption. The DLC configuration also resulted in cooler CPU temperatures and a slight performance boost. This setup highlights the growing necessity of liquid cooling for modern, high-power AI and computational workloads, providing efficiency and performance enhancements in data center environments.
Availability
The AHx240, AHx180, and CHx500 are manufactured at CoolIT’s new Canadian facility and are now available for immediate shipping. This facility expansion is part of the company’s strategic response to the growing demand for efficient, reliable liquid cooling solutions—demand driven by the increasing power of AI processors and the rising need for higher-density server workloads. With the launch of these new CDUs, CoolIT further solidifies its position as a market leader in advanced cooling solutions tailored for modern data centers.
Beijing Qianxing Jietong Technology Co., Ltd.
Sandy Yang/Global Strategy Director
WhatsApp / WeChat: +86 13426366826
Email: yangyd@qianxingdata.com
Website: www.qianxingdata.com/www.storagesserver.com
Sandy Yang/Global Strategy Director
WhatsApp / WeChat: +86 13426366826
Email: yangyd@qianxingdata.com
Website: www.qianxingdata.com/www.storagesserver.com
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