Rear Door Cooling – Aqua’s award-winning range of Data Centre water cooled rear doors lead the field when it comes to ultra-efficient Data Centre Cooling solutions.

Aqua’s Data Centre Rear Coolers were awarded with the UK’s highest business accolade in 2013, the Queen’s Award for Enterprise: Innovation. Two of our Data Centre installations have won the BCS, The Chartered Institute for IT, Certified Energy Efficient Data Centre Award, one winning Gold (best in class capability) and one winning Silver (advance capability). The Gold winner also won the 2012 Project Excellence Award. Which is an annual prize given to a public or private sector entrant, for the most outstanding Data Centre Cooling project.

Full Turnkey Solutions

Aqua’s aim is to build a life-long relationship with our customers. Becoming essentially a “one stop shop” for all your temperature control requirements, for now and the future. The three divisions of our business – Sales, Hire & Service – enable us to help clients every step of the way.

Our USP is our ability to offer clients a complete turnkey solution. We’ll work with you from initial site visit and system design to installation and commissioning. Our services include:

  • Free design consultancy, including AutoCAD drawings, 3D modelling and energy calculations
  • Mechanical and electrical installation – encompassing civil works, offloading & positioning, pipework installation, mains power and cabling, all CDM compliance, full project management and delivery
  • Aftersales support – including preventive maintenance plans to maximise product lifespan and efficiency

Our business is built on our core values of technical excellence, care, integrity and a “can do” attitude. We train all our people to be specialists in what they do – innovative engineers dedicated to providing practical, effective and efficient solutions supported by second-to-none customer service.

Case Study

Aqua Help Norwegian University Students Keep Cool

Aqua and their brand partners in Bedfordshire have linked up again to supply ground-breaking Data Centre Cooling technology to one of Norway’s top universities. Aqua has delivered its multi-award winning state-of-the art Leak Prevention System (LPS) in conjunction with Rear Door coolers to the prestigious University of Stavanger. In a deal that consolidates the British firms’ links with the European higher education sector. The LPS technology, which has won several industry prizes including a 2015 Queen’s Award for Enterprise (Innovation). As well as recognition by the Institute of Physics (IOP), was designed, developed and patented by Aqua. The Hampshire firm’s ground-breaking design complements Rear Coolers, which themselves won a 2013 Queen’s Award for Enterprise (Innovation); the top-flight Norwegian university’s new Data Centre Cooling system combines the benefits of both designs. This unique composite all-British product offers customers a leak-free guarantee that is transforming data centre cooling applications worldwide.

Beating The Heat

Heat is the common enemy of Data Centres, created by the power required to run billions of individual components. Usually housed on 19 inch racks in rows of cabinets containing computer servers, systems and associated equipment – such centres vary in size from a few cabinets to several hundred and each cabinet can generate up to 45 kW of heat.

Cooling Data Centres is, understandably, a serious issue. The traditional method was to air condition the entire building. Now recognised as being hopelessly inefficient and extremely wasteful of resources, as they strive to maintain individual cabinets at sub-30°C and ensure delicate components are not damaged by heat or hot spots.

Aqua’s Data Centre Rear Door Cooling units offer an innovative, competitive and highly efficient alternative to traditional cooling solutions. Our Rear Coolers are essentially, fan driven, water cooled heat exchangers fitted to the rear of individual data cabinets. They draw the heated air from the active equipment on the data racks through the heat exchanger coils. Then cooled, back into the data room as ambient air to provide ‘free’ air conditioning. They allow loads of up to 58kW per cabinet with the added benefit of removing real estate inherent with hot aisle cold aisle, in row cooling, CRAC cooling and aisle containment designs.

The waste heat is removed at source using water cooling – without any risk of leakage – by the Aqua Cooling Leak Prevention System (LPS). The LPS protects each individual rear door and all the associated pipework and pipework accessories. Even if the leak is as small as a weep in the pipework or as large as an open connection to a door, there is no possibility of leakage or system interruption. Leak-free continuous operation is guaranteed.

Rear Door Cooling Solutions

Aqua’s Rear Door Cooling units allow supply water temperatures to rise from the traditional 6°C for CRAC systems to between 14°C-24°C. Reducing chiller size and energy costs. They also increase the availability of “free cooling”. Delivering up to the ASHRAE maximum 27°C (2013) room temperature.

From their earliest days, air conditioning systems were designed to remove between 1 and 3 kW per cabinet. The ability to remove heat from cabinets by some form of air conditioning is limited to 20 kW. While the heat omitted from standard cabinets is probably only 7 to 10 kW. Within the next couple of years, as processors become even faster, this is expected to rise to an average of 15 kW per cabinet. With the increase of working temperatures of servers, anything above this will require a water cooled rear door.

With the drive towards cloud computing and virtualisation, the Aqua Rear Door Cooler – with its ability to remove large heat loads, typically 24 to 30 kW – allows several powerful blade servers to be held in one cabinet, reducing the real estate required. A new style blade server, which only takes up 6U of a potential 48U cabinet, will itself produce up to 6 kW. Super computers can produce up to 45 kW. We are now being asked by certain military and research establishments to cool cabinets generating up to 58 kW of heat.

The Aqua system also allows the design, installation and operation of high density data centres. With highly critical services to use ambient air only – no refrigeration – so enabling them to become virtually zero carbon emitters from a cooling perspective.

We offer a range of external cooling options, including chillers, cooling towers & adiabatics. As well as natural resources such as river, lake & sea water and boreholes.

You May Also Want To Consider

Leak Prevention

CRAC Units

In-Row Coolers







Why Call Aqua?

Established in 2001, Aqua Group are a market leading force in the design and supply of innovative temperature control solutions. Our team has a vast product knowledge base and years of application experience. Focused on finding the most energy efficient and price competitive solution for your specific business needs.

Whether you’re an end user looking for a bespoke cooling system design or a trade customer trying to source a single chiller unit, our specialist engineers are on hand to help. Aqua Group’s core values – Technical Excellence, Can-do Attitude, Integrity and Care – are at the heart of everything we do, and we always strive to achieve the highest level of customer service experience.

For help with product selection and technical advice call our sales team today on 0333 004 4433.