Summary
- Motivair by Schneider Electric has introduced the MCDU-70, a 2.5MW coolant distribution unit for high-density data centres.
- The CDU range now spans 105kW to 2.5MW and can be combined into 10MW-plus cooling blocks for AI and accelerated computing.
- The product reflects a shift from rack-by-rack liquid cooling projects towards repeatable thermal blocks for dense AI deployment.
Motivair by Schneider Electric has introduced a 2.5MW coolant distribution unit for high-density data centres, expanding Schneider Electric’s liquid cooling portfolio for AI and high-performance computing environments.
The MCDU-70 is now the highest-capacity CDU in Motivair’s range. It is available globally through Schneider Electric manufacturing hubs in North America, Europe, and Asia, and is designed to cool high-density facilities at multi-megawatt scale.
The product arrives as liquid cooling moves from a specialist rack-level intervention into a central part of data centre design. AI clusters require thermal architectures that can cope with dense GPU platforms, higher flow rates, secondary loops, plant integration, filtration, controls, and maintenance access. A CDU is no longer just supporting equipment; it is becoming one of the basic building blocks of an AI data hall.
Cooling blocks for dense AI
Motivair says the MCDU-70 provides up to 2.5MW of cooling capacity while preserving flow performance and facility pressure. The unit uses dual heat exchangers and parallel filtration, with the company targeting 1.5 litres per minute per kilowatt while managing pressure drop from rack to plant.
The wider Motivair CDU portfolio now spans 105kW to 2.5MW. That range allows deployments to scale from smaller liquid-cooled rooms to larger AI halls without forcing every project into the same mechanical configuration. The company says multiple MCDU-70 units can be combined into 10MW-plus systems, with one example using six 2.5MW units in a 4+2 redundant design.
That kind of configuration reflects how AI infrastructure is being modularised. Instead of treating each deployment as a bespoke engineering project, suppliers and operators are trying to create repeatable power and cooling blocks that can be installed, commissioned, and expanded in a predictable way. The economic value sits not only in the capacity rating, but in how easily the equipment can be repeated across sites and phases.
The MCDU-70 also connects to Schneider Electric’s EcoStruxure software, allowing multiple CDUs to operate as part of a centralised system. Controls and monitoring become more important as dense halls introduce variable thermal loads, tighter temperature margins, and more demanding maintenance requirements.
The heat still has to leave the site
Liquid cooling removes heat more directly from IT equipment, but it does not remove the need for building-level heat rejection. Operators still need chilled water or other cooling loops, plant capacity, pipework, pumps, heat exchangers, monitoring, water treatment, redundancy, isolation points, and service procedures.
A larger CDU can shift the bottleneck. Once rack heat is captured effectively, pressure moves into secondary circuits, plant rooms, dry coolers, chillers, heat reuse systems, and the electrical capacity needed to run the mechanical infrastructure. The data hall becomes more thermally capable, but the rest of the facility has to match it.
That creates a sharp retrofit problem in Europe. Many established colocation sites were designed around air-cooled enterprise, network, and cloud workloads. They may have available space and customer demand, but not the mechanical distribution, floor layout, containment, leak-management strategy, or plant capacity required for dense liquid-cooled AI clusters.
New campuses face a different decision. Developers planning AI-ready capacity have to decide early whether to build for liquid cooling from the start, even when the first tenants may not fill every hall with accelerated compute. Overbuilding can tie up capital, but underbuilding can strand power if future workloads cannot be cooled at the densities customers expect.
The MCDU-70 sits inside that practical design tension. It gives Schneider Electric and Motivair a larger cooling unit for AI and HPC environments, but its value will depend on integration with plant, controls, commissioning, and operations. CDU capacity can support dense compute, but usable AI capacity still depends on the whole thermal chain working from chip to heat rejection.
