A coolant distribution unit (CDU) is an HVAC cooling solution for data centers. The CDU moves liquid coolant through the system so the equipment doesn’t overheat and can run safely and efficiently.
Benefits
Coolant Distribution Units for AI Data Centers, High-Density Liquid Cooling and Scalable Growth
Coolant distribution units help data center operators deploy, manage, and scale liquid cooling for AI, HPC, and high-density environments. From row-based high-capacity systems to modular centralized platforms, Trane CDUs are designed to improve uptime, simplify operations, and support long-term infrastructure growth.
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Reliable Liquid Cooling for Continuous AI Operations
Maintain thermal stability for high-density AI workloads while reducing downtime risk and supporting continuous operation in mission-critical data centers.
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Scalable Infrastructure for AI Growth
Scale cooling capacity in step with AI demand through deployment strategies that support phased growth, rising rack densities, and future expansion.
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Intelligent Controls for Better Visibility
Gain real-time visibility into liquid cooling operations with coolant distribution units that improve monitoring, automation, and infrastructure awareness.
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Serviceable Design That Reduces Disruption
Simplify maintenance activities through serviceable designs that reduce operational disruption and help protect uptime during planned or reactive service.
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Flexible Deployment for New and Existing Facilities
Support new construction, retrofit projects, and phased expansions through flexible architectures that adapt to changing facility and workload requirements.
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Efficient Use of Space and Infrastructure
Improve white space utilization through efficient cooling architectures that deliver high capacity while reducing infrastructure complexity and footprint.
Coolant Distribution Unit Product Offerings
Explore Trane coolant distribution units designed for different AI data center cooling strategies. The 1MW CDU supports high-density row-based deployments, while GigaModular™ enables modular, centrally controlled scaling for larger AI and hyperscale environments.
FAQs
Your CDU questions answered.
A CDU works by pumping coolant through the racks of IT equipment, where the liquid picks up heat. Then it brings the warm coolant back, removes the heat, and sends cooled liquid out again.
CDUs also monitor temperature, pressure, and flow so everything stays in the right range. Some systems use direct‑to‑chip cooling, where the coolant flows through plates that sit right on top of the chips to pull heat away more quickly.
Liquid cooling with CDUs is more efficient than air cooling, especially in hyperscale data centers. It helps save energy and keeps temperatures more stable. CDUs are also reliable, have sensors that catch issues early, can scale as cooling needs grow, and work with different types of coolants and setups.