Daikin CDU expands AI data centre portfolio
30th October 2026
ITALY: Daikin has introduced a new coolant distribution unit to support high-density AI applications.
The new CDU range offers capacities ranging from 400kW to 2.5MW per CDU and can be configured to support different TCS circuit management strategies.
Through proprietary control logic, up to ten units can operate in parallel as a single integrated system, providing centralised control of circuit temperature and pressure.
For larger-scale applications, the range also includes preassembled and engineered skid solutions featuring multiple CDUs integrated and configured for parallel operation.
The system architecture incorporates features intended to enhance system resilience, including redundant pumps, duplicated pressure and temperature sensors, an integrated leak detection system, advanced alarm management functions and options supporting continuity of electrical supply.
The hydraulic circuit is manufactured entirely from AISI 316L stainless steel and incorporates grooved mechanical couplings throughout, eliminating the need for welded joints. This design has been selected to provide corrosion resistance and to facilitate installation and maintenance activities throughout the equipment lifecycle.
All units within the range are designed for front-side access only, reducing service clearance requirements. In addition, pumps can be removed using dedicated sliding rails designed to facilitate maintenance operations and support faster component replacement.
The CDU is equipped with a Daikin controller developed for the coordinated management of multiple units operating within the same system. Through proprietary control logic, multiple CDUs are said to be able to operate as an integrated solution, enabling centralised management of key operating parameters.
To address the requirements of AI-oriented data centres, where thermal loads may vary rapidly, the CDU combines variable-speed pumps, high-accuracy flow, pressure and temperature measurements, and dynamic adjustment of TCS operating parameters. A key element is a modulating valve dedicated to the FWS primary circuit, featuring an equal-percentage control characteristic and a high-speed actuator. The valve is designed to regulate thermal energy exchange between the FWS and TCS circuits and to support control of the TCS outlet temperature according to the configured operating parameters.
