Crac Systems

Fresh power for data centres and server rooms. Modern IT climate control technology ensures optimum thermal conditions in rooms exposed to high loads, such as data centres and server rooms. The main aim here is to ensure constant temperatures and precise humidity levels.

Continuous-operation designs and redundant systems ensure that all key functions are maintained.

Rittal CRAC systems dissipate waste heat from the IT equipment on demand, ensuring that the overall system operates in the most energy-saving way possible.

The fan is positioned inside the raised floor. This provides for optimal air distribution in the raised floor and also reduces energy consumption by minimising pressure deflection losses.

The integration of a heat exchanger with a larger surface area also enables potential savings in chilled water generation by utilising higher water inlet temperatures.

  • The unit is available in a broad output range, and for a variety of cooling media.
  • The unit supports optimum integration of both hardware and software.
  • Optimum energy and space efficiency thanks to intelligent design features, such as the slanted heat exchanger and base integrated fan.
  • Frame based on the popular TS 8 system.
Functional principle

The CRAC system draws warm waste air from the top of your data centre, cools it with either water or refrigerant in a closed heat exchanger, and blows the cooled, filtered supply air into the unit’s floor with overpressure.


User-friendly, high-quality control with an extensive range of functions and connectivity. Space-saving, readily accessible, high-efficiency fan. Flow and energy-optimised special heat exchanger with a generous safety factor. The standard scope of the system includes the enclosure and the supporting structure for integration into a raised floor, as well as an autonomous controller with graphic display and the integrated filters. Pre-defined component lists permit the project-specific integration of additional options such as a humidifier, an electric heater, diverse interfaces (BACnet, RS485) etc.

Related Resources

  • Rittal - CRAC Systems Brochure: Rittal - CRAC Systems
    The Rittal CRAC system provides top of the line cooling capabilities for server rooms and data centers. The CRAC system takes in the hot air released by your hardware and cools it in an enclosed chamber. From there it blows the cooled, filtered air into the unit's floor. The CRAC system comes in a wide variety of sizes and outputs to suit any and all of your needs. [...]
  • Row-based Cooling with the LCP Passive White Paper: Row-based Cooling with the LCP Passive
    Many data centres use ambient air to cool the servers in the racks. CRAC systems are used to cool the ambient air to a suitable temperature. CRAC systems are positioned in the data centres away from the rows of racks. They draw in ambient air – which rises due to its lower density compared with cold air – below the ceiling, and cool it down using a refrigerant. [...]
  • Energy-Efficient Climate Control Article: Energy-Efficient Climate Control: "Keep Cool" in the Data Centre
    If the output of the CRAC system is no longer sufficient for adequate cooling of the server rack, we recommend that you install a Rittal TopTherm Liquid Cooling Package (LCP) Inline, which blasts cold air forwards into the cold aisle with a cooling output of up to 60 kilowatts. Incidentally, the LCP Inline can also be retroactively installed... [...]
  • Energy Efficiency by Design Brochure: Energy Efficiency by Design
    Complete liquid cooling solutions: Energy savings in IT and production with products featuring exemplary energy efficiency and intelligent control. Recooling systems for IT and production, free cooling; CRAC systems, cold aisle containment; Air-water heat exchangers, cold plates; High-density cooling; Piping systems; Monitoring [...]
  • Japan Tokyo Institute of Technology installed Rittal’s LCP Crac Industry: Universities and Education
    Japan Tokyo Institute of Technology installed Rittal’s LCP Crac, chiller and rack technology for their 2.4 Petaflop super computer. Rittal supports most leading blade server technology with our water based high density cooling technology. Even high density rack loads of up to 30KW per rack can be supported through Rittal’s water based LCP cooling infrastructure. [...]

Did you know?

Rittal is a world leading single source provider for all IT Infrastructre and Data Centre Solutions.

Contact Us