Direct Liquid Cooling

Powerful and modular solution portfolio for hyperscale data centres

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AI cooling

Direct Liquid Cooling for hyperscalers – future-proof cooling for AI data centres

Generative AI is changing the IT infrastructure at a rapid pace – and driving the requirements for hyperscale data centres to a new level. This means: more computing power in less space, while at the same time increasing requirements for energy efficiency, availability and scalability. Cooling is becoming a key strategic technology. It will be decisive for the success of future-proof data centres.

In view of high-performance computing (HPC) and increasing power densities, liquid cooling is becoming more and more important. This is because air cooling is reaching its limits in these areas. Rittal has developed an innovative solution for precisely this technological challenge: Direct Liquid Cooling (DLC). This cooling technology utilises the higher heat capacity of liquids and directs the cooling liquid directly over the chip – exactly where most of the heat is generated. 

The Rittal DLC portfolio is specially designed to meet the requirements of hyperscalers: It can be seamlessly integrated into existing or new IT infrastructures, is modularly scalable and designed for high-availability operation thanks to redundant components. This allows you to optimise AI workloads effortlessly – with a cooling concept that is designed for maximum efficiency and future-proof scaling.

Reliable delivery: Our dependable production capacity guarantees on-time deliveries, even for large-scale requirements. Your data centres are rapidly scalable without delay.

 

Flexible scaling and simple integration: Our modular concept and uniform architecture means that solutions are easily adapted to keep pace with your growing requirements and readily integrated into existing infrastructures.

Our liquid cooling portfolio 


One mega watt!
The cooling output delivered by Rittal’s most powerful Coolant Distribution Unit (CDU) In-Row.

Our DLC portfolio offers three different solutions with cooling outputs ranging from 70 kW to 1 MW.

Liquid-to-air solutions: 

  • 70 kW: Rear Door HEx with Coolant Circulation Unit (CCU)

Our liquid-to-air solutions cool heat-generating components like the AI chip using a water/glycol mixture which is air-cooled via the rear door of the rack. They are used in individual IT racks or in data centres with medium heat losses.

Liquid-to-liquid solutions: 

  • 150 kW: CDU In-Rack

  • 1 MW: CDU In-Row

In our liquid-to-liquid solutions, the water/glycol mixture is cooled by the building’s own water supply. Liquid cooling removes significantly more heat than air cooling. Liquid-to-liquid solutions are used in data centres with a medium heat loss as well as in high-performance data centres.

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We'll be delighted to answer all your questions relating to the Direct Liquid Cooling.

Always available and OCP-compatible

Maximum operational reliability: The integral redundancy options included with Rittal Direct Liquid Cooling keep your systems permanently available. The hot-swap function allows you to replace critical components while the system is running; no need to interrupt operations. This helps to avoid expensive system downtime and keeps maintenance times to a minimum.

Bespoke solutions: You benefit from a team of interdisciplinary experts who will support you with technical advice and develop bespoke solutions tailored to your specific requirements.

Maximum efficiency: For many years, Rittal has been actively involved in OCP projects and has adapted its Direct Liquid Cooling solutions to suit the OCP architecture. We help standardise your data centre structures to save you money and energy.

Direct Liquid Cooling – Modular, platform-based solutions

Maximum reliability: Component-based leak monitoring proactively protects your infrastructure from water damage and ensures long-term operational reliability.

Minimal waiting times: The sensors, controller and pumps of the CDU In-Row can be replaced whilst the system is operational. This helps to maintain constant cooling and minimise downtime.

Individual modifications for your infrastructure: Bespoke distributor channels (manifolds) allow flexible, efficient distribution of the cooling fluid.

Reliable power supply: A DC busbar ensures a stable, energy-efficient power supply in data centres based on OCP architecture and protects your IT from power outages.

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