Daikin sets new standard in chiller technology

Daikin’s new chiller the EWAD-TZ B is set to outperform the market.  The latest addition to its industry-leading portfolio of air-cooled chillers, the EWAD-TZ B offers even greater flexibility and choice with outstanding energy performance.

The newest generation in air-cooled chillers pushes the boundaries of design to meet the challenges of green building efficiencies and new legislation, through the application of advanced technologies resulting in a host of unique new features.

From a pedigree of chillers

Daikin’s new highly advanced chiller adds to a generation of trailblazing HVAC products designed to meet a full range of applications, while offering solutions that are more efficient, quieter and greener than ever seen before. Since Daikin’s introduction a decade ago of the first inverter driven mini-chiller to the market, the HVAC specialist has continued to innovate with improvement in end-user efficiencies and flexibility in mind.

“With ever-tightening legislation on energy efficiency and CO2 emissions, business owners face a number of challenges when replacing cooling and climate management systems. Our challenge is to deliver systems that are competitively priced as well as more versatile. As manufacturers of both compressors and chillers we are able to deliver the optimum design to meet the needs of the many different applications from comfort- to process-cooling. The new chiller’s predecessor, the EWAD-TZ launched in 2013, offered industrial and commercial users savings of up to 20% in running costs and carbon emissions compared with traditional chillers, thanks to its unique single screw compressor design with integrated inverter technology, which is at the heart of the Daikin’s chiller range. Introducing a number of new features, the EWAD-TZ B series has an extensive list of options and accessories to adapt units for specific needs,” says Daikin Product Manager, Herlinde Geuns

Designed for maximum efficiency

Available as a single or dual circuit unit, the next generation EWAD-TZ B offers cooling capacities from 170kW up to 700kW. The unique screw compressor design with integrated inverter technology, has been combined with Variable Volume Ratio technology (VVR), which allows compressors to modify their own geometry, varying the condenser pressure charge to maintain the highest compression efficiency. Daikin’s compressor motors have been optimised to operate at different speeds, with selection of the most efficient motor according to the nominal frequency of the chiller, to ensure the highest unit performance. Improved control logic for the economizer cycle control offers even more advantages and greater reliability.

The advanced design of the heat exchangers uses the latest available technology to deliver a high heat transfer coefficient while minimizing pressure drops. With 3 available levels of efficiency to choose from, customers can choose the best compromise between efficiency and price to suit their needs.

The EWAD-TZ B chiller incorporates a new microchannel condenser coil, designed for high thermal efficiency which uses 30% less refrigerant charge.  With a new epoxy coated protective layer, the Microchannel coil is light and durable. However, R-134a, operates at slightly higher condensing pressures putting more pressure on the two manifolds that facilitate a two-pass process. In the first pass, the high-pressure superheated refrigerant is de-superheated and condensed into a liquid. The second pass sub-cools the liquid refrigerant below its saturation temperature prior to entering an expansion device. This construction provides a coil that is typically 50% lighter and uses, on average, 50% less refrigerant when compared to a traditional copper-tube/aluminum-fin coil design. Heat transfer is also enhanced, leading to smaller, more-efficient Micro-channel condensing coils Additionally, the all-aluminum uniform design provides a structurally robust coil that is hardy to formicary corrosion. 

All components are sealed in an insulated housing with compact electrical panel. The refrigerant system cooling system is designed to maintain the electrical circuits at a constant temperature extending the life and reliability of the system, while offering a wide speed modulation range.

 Compromise

An extensive list of options and accessories allows end users to adjust the new system to their specific needs, extending the applications range.

Daikin chillers are assembled and factory tested before shipment and all controls are pre-wired, adjusted and tested to offer an almost ‘plug and play’ unit, even for larger installations where high cooling capacities are needed.

Whether used for a new or refurbishment project, the EWAD-TZ B chiller range is easy to service and maintain and comes with after-sales support from Daikin, including training and advice on selection, installation, commissioning and operation.

The chillers have user-friendly smart controls and can be integrated easily with building management systems, allowing installers and business owners to monitor performance and identify faults more easily and users can benefit from reduction in running noise of between 6 and 10 decibels.

Daikin’s chiller range offers rapid payback, within one (process cooling) to three (comfort cooling) years of installation. In the long term, the compact chillers’ reliability and outstanding energy efficiencies mean ownership costs are low.

With a one-year warranty as standard and extended warranties available, plus maintenance contracts on offer from Daikin’s installer network, business owners can rest-assured that they will have the support

A combination of market efficiency, customization, chiller, compressor makes the EWAD-TZ B a firm favorite in building design.

Daikin products are distributed in the UK by Daikin Airconditioning UK Ltd, a wholly owned subsidiary of Daikin Europe NV, and Space Airconditioning plc, the largest independent Daikin distributor.

>Ends

This press release is issued on behalf of Daikin Europe NV. For further information on Daikin Europe, please contact Anju Sarpal on 07980 785572 or email Daikin-News@sheremarketing.co.uk

About Daikin Europe N.V.

Daikin Europe N.V. is a major European producer of air conditioners, heat pumps and refrigeration equipment, with approximately 5,500 employees throughout Europe and 10 major manufacturing facilities based in Belgium, the Czech Republic, France, Germany, Italy, the Netherlands, Turkey and the UK.

Globally, Daikin is renowned for its pioneering approach to product development and the unrivalled quality and versatility of its integrated solutions. With more than 90 years’ experience in the design and manufacture of heating and cooling technologies, Daikin is a market leader in heat pump technology. Daikin VRV and Daikin Altherma are the most sold heat pump systems in Europe, with over 500,000 systems delivered to date.

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