Data Center

Efficient cooling of data centres and server rooms

More and more computing power in less and less space and changing technological standards - new server generations require new cooling concepts for information and telecommunications technology (ICT). Weiss Technik offers a wide range of solutions that are precisely tailored to meet the specific requirements and which operate economically and safely even under extreme conditions.

Specific requirements

Two factors are crucial when it comes to air-conditioning data centres: operational reliability and economic efficiency. Reliable cooling is essential for the security of data and hardware, as overheating is one of the most common causes of server failures. In addition, it needs to be operated with the lowest possible energy and cost input in order to remain economically viable. However, since individual circumstances must be taken into account, there is no single optimal climate solution. Decisive criteria are, for example:

  • Size and layout of the data centre
  • Maximum heat load
  • Temperatures and temperature differences in the data centre
  • Requirements for the scalability of the solution
  • Availability claim and redundancy requirements
  • Environmental conditions and risks




Data centres are currently cooled almost everywhere by air-circulating systems that absorb the heat in the server room and dissipate it via a cooling medium, e.g. water or refrigerant. Depending on the requirements and structural conditions, different devices are used:

  • Precision air conditioning units
  • Cooling wall system 
  • Row-Based Cooling Units


Precision air conditioning units

Precision air-conditioning units are specially designed to meet the requirements of data centres: they accurately control the supply air temperature and run continuously in an energy-efficient manner. If necessary, they can react to unforeseen temperature fluctuations thanks to intelligent control. Depending on the structural conditions, there are different types of units:

  • In chilled water (CW) precision air conditioners, the chilled water is provided by an external chiller or a central refrigeration system and fed into the heat exchanger.
  • With direct free cooling (FC), cold outside air is fed directly into the data centre and the heat is dissipated via the exhaust air.
  • With indirect free cooling (iFC), a cooling medium is routed from an outdoor unit to the free-cooling heat exchanger, where the hot air emitted by the servers is cooled.


Cooling wall systems

Our unique cooling wall system Vindur CoolW@ll is a real innovation in the field of IT air conditioning. The partition wall between the IT room and the service corridor is used for cooling through the use of large-area, water-flow heat exchanger modules. In doing so, you easily gain more space in the data centre and can completely do without recirculation air conditioning units.
The heat exchanger filter modules in the wall and the underfloor fans in the raised floor provide the most efficient chilled water cooled room climate system for data centres. Thanks to the larger heat exchanger surfaces and the optimal airflow, very high heat loads can be dissipated extremely efficiently. There are no energy losses due to turbulence or constriction and internal pressure losses are greatly reduced.

The advantages at a glance:

  • More cooling capacity with more energy efficiency
  • More space in the server room
  • Lower investment costs
  • Easy accessibility
  • Extremely easy to maintain

Do you have any questions or would you like consultation?

Contact us

4 Files online

Cooling Wall System Vindur®...

Cooling Wall System Vindur® CoolW@ll® Energy-efficient and extremely high-performanced

Cooling Wall System Vindur® CoolW@ll® Energy-efficient and extremely high-performanced

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CoolMaster DX iFC


CoolMaster DX iFC

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CoolW@ll® uses almost the...

The perfect air-conditioning for your data centre

CoolW@ll® uses almost the full height and width of the server room for cooling.

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The high-performance climate...

Vindur® CoolCube

The high-performance climate solution for hyperscale data center

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