CRAH Units for Mission-Critical Cooling
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Upflow and Downflow Configurations
One Platform, Two Strategies
Daedex offers CRAH and CRAC units in both upflow and downflow designs, giving operators flexibility without complexity.
When airflow reliability directly impacts revenue, performance or production continuity, wedesign systems that perform under pressure.
Downflow CRAH Units
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 downflow units are optimized for:
● Front-intake airflow paths
● Flexible ducting or overhead distribution
● Efficient operation in constrained footprints
● Long-term adaptability as layouts change
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Purpose-Built CRAH Systems
Engineered for Precision Performance
CRAH units may differ in how they manage heat rejection, but their role is the same: maintain stable environmental conditions in mission-critical spaces where temperature swings or airflow inefficiencies can cause real operational risk.
Daedex CRAH units are engineered to:
and monitoring platform
Our approach starts with understanding how your facility operates today and where it needs to go next.
Engineered for
Speed Without Compromise
In mission-critical environments, delays are more than inconvenient; they introduce risk. Daedex operates on a simple principle: speed is the new spec.By integrating design, engineering, controls and manufacturing under one roof
Designed with the full cooling platform in mind. Integrate air and liquid cooling without sacrificing either.
Engineered for
Capacity, redundancy & Long-Term Reliability
Cooling systems are only as reliable as their ability to be maintained.Daedex CRAH units are engineered to maximize cooling capacity within a compact footprint, all while maintaining a focus on reliability and redundancy. Features such as removable panels, hydraulic fan removal systems and single-point internal piping connections allow technicians to access critical components quickly and safely, even in restricted environments.
This focus on access helps:
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.
Monitor performance in real time
Integrate seamlessly with existing BMS platforms
Maintain visibility across the cooling lifecycle
Avoid the delays and risks of field-integrated controls
FREQUENTLY ASKED QUESTIONS
CRAH units typically use chilled water supplied by an external plant, while CRAC units rely on direct expansion (DX) refrigeration. Both are used to maintain precise temperature and humidity in data centers and mission-critical environments.
Upflow or downflow depends on where the racks are in the space. The option between them lets you direct your cold air closer to the chip, depending on the configuration. Daedex helps evaluate airflow strategy based on your layout and operational needs.
Yes. Daedex systems are engineered to fit your facility’s space, airflow requirements, controls strategy and service constraints, without forcing unnecessary features or delays.
Design timelines are typically measured in days, with manufacturing completed in weeks. Actual delivery depends on project scope, but Daedex consistently outpaces traditional HVAC lead times.
Yes. Daedex CRAH and CRAC units are designed to scale with increasing rack densities and evolving cooling demands, supporting today’s loads while preparing for tomorrow’s.
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