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High-efficiency air handling units for data center cooling

The operation of efficient servers leads to high heat loads in the installation rooms. The main purpose of the air conditioning units is to keep the room temperatures constant and to remove large amounts of heat all year round. At the same time, the ventilation system must be reliable because its failure would lead to an overheating of the operating room and thus to a failure of the server. In particularly sensitive applications, these heat dissipating units are redundantly designed to guarantee the highest operational reliability.

Depending on the customer and purpose, the climatic conditions to be considered vary significantly. HANSA offers you tailored solutions for this. Thus, e.g, with our patented 4-flap technology, we were able to achieve an energy savings of 80 % for the climate model for the Deutsche Telekom AG over the split climate models.

Our competitive edge in compactness, reliability and efficiency is impressively documented with over 8,000 units sold to Deutsche Telekom.

Our products for these purposes are the Slim Line and Free Line series of equipment. The Slim Line units enable the treatment of air flow volumes up to 3,200 m3/h, , whereas our Free Line units can be freely dimensioned to be used from an air flow volume of 2,500 m3.

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Selected objects


EWE AG is a public utility company in the field of electricity, natural gas, telecommunications, information technology and the environment. Currently organized as a German public limited company EWE is considered the fifth largest electric supply company in Germany.

HANSA has equipped various EWE facilities cooling devices of the Slim Line Q series.

Application: Cooling of EWE telecommunications stations.

Units installed: Various Slim Line Q devices.

Specific features: Equipment of appliances with electric heating element.


Deutsche Telekom AG

Deutsche Telekom AG, as one of largest European telecommunications companies, has been using air conditioning units from HANSA for air conditioning a variety of telecom buildings for more than 20 years.

Application: Air conditioning of central offices and data centers

Units installed: approx. 8,000 Slim Line and Free Line air conditioning units

Specific features: Compact and highly efficient heat dissipating units with free cooling

Verkehrsbetriebe Karlsruhe

In the Baden-Württemberg city of Karlsruhe, Verkehrsbetriebe Karlsruhe (VBK) is the municipal transportation company. Various air conditioning units were delivered for the offices and computer rooms of VBK.

Application: Air conditioning of the offices and computer rooms

Units installed: various Hansa air conditioning units

Specific features: Suction side 4-flap system

Photo credit: Verkehrsbetriebe Karlsruhe GmbH

European Central Bank (ECB)

The European Central Bank, headquartered in Frankfurt am Main, is an establishment of the European Union and the common monetary authority of the Member States of the European Monetary Union.

Application: Air conditioning of computer rooms

Units installed: Among other things, 3 Prävent emergency cooling units

Specific features: Completely insulated frames and panels

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