Cooling solutions for data centres

Cooling equipment is one of the largest considerations when designing and building data centres.

Whether rejecting heat from CRAC, direct liquid chip, immersion cooling and water-cooled chiller systems or offloading chilled water systems in the cooler months, primary concerns when specifying evaporative coolers and free coolers include:

  • Energy and water consumption
  • Resilience
  • Integration with site BMS and IoT
  • Compliance with relevant standards
  • Ease of installation and operation
  • Ongoing OPEX and maintenance considerations
Transtherm’s adiabatic system provides “very effective management of Legionella risk”
The British Health and Safety Executive

Top Features


Improved PUE

Latest EC fans use only the minimum amount of power needed. Extended heat exchange surface area means that they can be reduced in speed further


Improved WUE

Evaporative cooling operation for typically 3% of the year vs. between 50-100% with other technologies


Greater Resilience

Use a larger number of smaller direct drive fans, rather than fewer belt-driven fans found in cooling towers and many hybrid coolers


Massively Reduced Maintenance

No continuous chemical treatment, No need to outsource maintenance, Reduced serviceable items, No registration with local authorities



Market and project research has shown that Transtherm adiabatic coolers are half the cost of wetted surface hybrid coolers


Minimal OPEX

With massively reduced water consumption, reduced energy consumption and minimal maintenance

Who are using Transtherm's Cooling solutions for data centres?


NGD - Biggest Data Centre in Europe

Transtherm’s 26 VEE air blast coolers are fitted with ERP Directive ready fans and deliver significant noise reduction when compared to other market leading alternatives, in accordance with BS EN 13487:2003.


University of Birmingham

3x 200kW, adiabatic V coolers, delivering impressive an EER (Energy Efficiency Ratio) of 74 when operating in adiabatic mode and 91 in dry mode, with a very low noise volume of 49 decibels from a distance of ten metres.


University of Plymouth

Simple switch the old chillers for a like-for-like ambient-only cooling replacement. Winner of the DCS Award for Cooling Innovation of the year 2019.

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What Transtherm's customers say...


Transtherm’s adiabatic technology is an efficient, reliable and high-quality solution for directly cooling data centres in which the server temperature parameters allow for the eradication of compressor or refrigerant based technologies.

Their designs are based on real time weather data for the installation site and their knowledgeable team of mechanical engineers can quantify any specification decision with independent research and testing results for complete peace of mind.

Mark Mickleburgh
Senior Project Manager, Briggs and Forrester

Completing a build of such scale and complexity within just 16 weeks requires suppliers to adjust the design and build of their products in accordance to the build schedule and deliver them just in time for installation to prevent costly delays to NGD and our local contracting firms. The solution provided by Stulz and Transtherm is a great example of how data centres can work with trusted, reliable and dedicated supply chain partners..

Senior Project Manager, Briggs and Forrester

We were ultimately thrilled with the decision to upgrade to a new ambient-only cooling system, rather than simply switch the old chillers for a like-for-like replacement; something which we didn’t think was achievable within our original budget.

Commissioned during one of the hottest UK summers on record, the new system has already demonstrated its performance credentials and we are delighted with the results.

Paul Nile
Maintenance Manager, University of Plymouth

With a dramatic increase in digestion capacity and therefore gas production, the CHP system was working harder than ever before. With the CHP plant working harder, the original coolers were running at higher fan speeds for prolonged periods in order to manage the increased heat dissipation requirement.

It was clear the current cooler specification simply wasn’t able to maintain the engine and intercooler temperatures required for optimum engine performance. This was the point we turned to Transtherm.

EM&I Manager North, Wessex Water
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Transtherm - A Customer-centric business since 1989


    Transtherm’s adiabatic coolers are a low maintenance, modern alternative to traditional cooling towers and offer lower Legionella risk and OPEX


    Developed with energy efficiency and reliability in mind, our wide range of air blast coolers use the latest heat exchange coil, fan and control technologies


    Our cooling solutions for data centre have been recognised by the DCS Awards panel and we are proud winners of the 'Data Centre Cooling Innovation of the Year' Award.


    High water temperatures, low noise requirements and footprint considerations – Transtherm’s air blast coolers are designed to take all of these common factors into account


    Combining both technologies from Transtherm, the Packaged Cooler & Pump Set Solution requires minimal system design, installation and commissioning time


    Available for commercial and industrial applications, Transtherm’s standardised pump packages are a straightforward and cost effective ‘fit and forget’ solution


    Available for commercial and industrial applications, Transtherm’s standardised pump packages are a straightforward and cost effective ‘fit and forget’ solution


    Suitable for all standard refrigerant and steam-based condensing applications, Transtherm’s unit designs can be modified to ensure Pressure Equipment Directive (PED) compliance


    Transtherm’s market-leading control systems complement the full range of dry coolers, adiabatic coolers, free coolers, air cooled condensers and pump sets

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    Don't miss out on the latest Data Centre cooling project walk around with one of our applications engineers Justin Stinson.