CRAH UNITS FOR MISSION CRITICAL COOLING

Reliable cooling is not optional in mission-critical environments. Whether supporting high-density data halls, edge facilities, semiconductor operations or battery manufacturing, CRAH (Computer Room Air Handler) units play a central role in maintaining uptime, efficiency and long-term operational stability. Daedex systems are available in upflow and downflow configurations, allowing facilities to align airflow strategy with room layout, rack density and service requirements, without sacrificing delivery speed or reliability.
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downflow
crah units

Daedex downflow systems are engineered-to-ordersolutions designed to support a wide range of airflow strategies and facilityconfigurations. Daedex downflow units are optimized for:

Compact footprints in dense data halls
Custom coil configurations and fan layouts
Service access in tight mechanical spaces
Integration with existing raised-floor infrastructure

Upflow
Crah units

Daedex upflow systems provide flexible airflowsolutions tailored to each facility's unique requirements and demands. Designedwithout limitation to a specific building type or layout, Daedex upflow unitsare designed for:

Front-intake airflow paths
Flexible ducting or overhead distribution
Efficient operation in constrained footprints
Long-term adaptability as layouts change

Engineered for
capacity, redundancy and long-term reliability

Daedex CRAH units are engineered to maximizecooling capacity within a compact footprint, all while maintaining a focus onreliability and redundancy. Features such as removable panels, hydraulic fanremoval systems and single-point internal piping connections allow techniciansto access critical components quickly and safely, even in restrictedenvironments.

1
Reduce mean time to repair (MTTR)
2
Minimize disruption during maintenance
3
Extend the operational life of the system
4
Protect uptime in facilities that cannot afford surprises

Integrated
Controls and Transparent Operation

Daedex integrates control systems at the factory, supporting platforms such as Distech and Siemens, with open protocols including BACnet and Modbus.

From startup through commissioning, customers know exactly how their system operates—and why.

frequently asked questions

What is the difference between a CRAH and a CRAC Unit?

CRAH units typically use chilled watersupplied by an external plant, while CRAC units rely on direct expansion (DX)refrigeration. Both are used to maintain precise temperature and humidity indata centers and mission-critical environments.

How do I choose between upflow and downflow CRAH units?

Upflow or downflow depends on where the racksare in the space. The option between them lets you direct your cold air closerto the chip, depending on the configuration. Daedex helps evaluate airflowstrategy based on your layout and operational needs.

Are Daedex CRAH units fully customizable?

Our integrated model allows us to deliver design drawings, technical specs, and submittal docs in days, not weeks. We move at the speed of your project, not the speed of a factory queue.

Are these systems suitable for high-densityenvironments?

Yes. Daedex CRAH units are designed to scale with increasing rack densities and evolving cooling demands, supporting today’s loads while preparing for tomorrow’s.

Let’s build something that works

Have specs? Need guidance? We’re ready to help you scope and solve your cooling challenge.
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