Daikin launches a new generation of inverter driven air-cooled and water-cooled screw chiller series with refrigerant R-1234ze(E). The Air-cooled chiller range (TZ series) will be available from 130 kW up to 830 kW cooling capacity. The Water-cooled chiller range (VZ series) will be available from 340 kW up to 1600 kW cooling capacity.
The selection of R-1234ze(E) allows to minimize the global warming impact of screw compressor chillers thanks to low Global Warming Potential in combination with high energy efficiency.
R-1234ze(E) is a HFO refrigerant (Hydro Fluoro Olefins). Its Ozone Depletion Potential (ODP) is equal to zero (0) and the Global Warming Potential (GWP) is 7 (according to the EU F-gas Regulation based on IPCC Fourth Assessment Report). The GWP value is less than 1 according to the IPCC Fifth Assessment Report.
The new range of screw compressor chillers will be equipped with Daikin design inverter driven single screw compressor with Variable Volume Ratio (VVR) technology.
An inverter drive modulates chiller capacity at part load in the most efficient way, while VVR (Variable Volume Ratio) adjusts compressor operation at any temperature conditions. A sliding valve fine-tunes refrigerant discharge pressure to match the operating condensing pressure. In this way refrigerant is compressed to just the right pressure level thus minimizing the energy losses typical of standard compressors designed with fixed volume ratio. Inverter drive for capacity control and VVR for discharge pressure fine-tuning, are working synergistically in order to optimize unit efficiency at any operating condition.
Thanks to this superior technology, current Daikin R-134a and new R-1234ze(E) series are already compliant with 2021 Ecodesign efficiency requirements. The R-134a ranges will be maintained in Daikin product portfolio allowing for a smooth market transition. The introduction of the new R-1234ze(E) range will provide a long-term solution that supports the HFC phase down schedule of the F-gas Regulation.
Daikin’s Refrigerant Policy
Daikin has a long history of continually reducing the environmental impact of cooling, heating and refrigeration products, as well as having a unique expertise that comes from manufacturing both refrigerants and equipment. This position is a result of the company's corporate philosophy to "Be a Company that Leads in Applying Environmentally Friendly Practices".
Regarding refrigerant choice, Daikin has expertise in using fluorinated (HFC, HFO) as well as non-fluorinated gases (ammonia, carbon dioxide, hydrocarbons), because the company believes in diversity of refrigerant choice to allow the best suited solution to be used in each application.
For complete overview, please access “Daikin’s Policy and Comprehensive Actions on the Environmental Impact of Refrigerants”
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Daikin Europe N.V.
Daikin Europe is a subsidiary of Daikin Industries Ltd. and the leading provider of heating, cooling, ventilation, air purification and refrigeration solutions in Europe, the Middle East and Africa. The company designs, manufactures and brings to market a broad portfolio of equipment, as well as tailor-made solutions for residential, commercial and industrial purposes. To date Daikin Europe has over 12,000 employees working at more than 59 consolidated subsidiaries. It has 12 major manufacturing facilities based in Belgium, the Czech Republic, Germany, Italy, Spain, Turkey, Austria and the UK. The headquarters of the Daikin Europe group are in Belgium, Ostend. The company was established in 1972, production in Europe started in 1973.
About Daikin Industries Ltd.
Based in Osaka, Japan, Daikin Industries employs over 89,000 people worldwide. The global company is market leader for heat pump and air conditioning systems, as well as air filtration. It is the only air conditioning manufacturer in the world that researches, develops and produces all important system components, such as refrigerants, compressors and electronics, in-house. The company achieved € 23.7 billion sales turnover in financial year 2021 (1 April 21 – 31 March 22).
Media Contacts Daikin Europe N.V.
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