Commercial refrigeration in a transcritical cycle
Mini NS21 compact system from Tewis
Tewis is the expert in the Daikin Group for CO2 refrigeration systems. In addition to its expertise in customer-specific control and regulation systems (including monitoring), Tewis and its 100 employees offer comprehensive overall solutions for air-conditioning and refrigeration applications. In recent years, the manufacturer has focused specifically on the development of CO2 refrigeration systems. At Euroshop 2020, the company, which is a leader in the field of technical planning and implementation of refrigeration systems, will be presenting the new Mini NS 21, a compact refrigeration system for cooling and deep-freezing. This is ensured by a booster, which provides the connection to freezer shelves or cold stores.
Innovative technology in minimal space
The Mini NS21 can have up to two MT compressors and one LT compressor. An inverter for the MT compressor, and optionally for the LT compressor, ensures that operation is adapted to current requirements, thus saving energy. The system also has a storage tank for the oil separator, a liquid container with a capacity of 48 litres, which contains an internal evaporator sensor for connection to the back-up unit, and two electronic sensors that monitor the refrigerant level. The system comes fully wired and equipped with electronic controls. It takes little space (a footprint of less than one square metre), while allowing easy access to all components, simplifying installation and maintenance.
With a GWP (GWP = Global Warming Potential) of 1, natural refrigerant CO2 is particularly climate-friendly and also works more efficiently than other refrigerants thanks to its high volumetric cooling capacity. Its positive thermodynamic properties such as low viscosity, high thermal conductivity, high vapour density and classification in safety class A1 as a non-toxic and non-flammable refrigerant make CO2 the ideal refrigerant for food refrigeration.
The Mini NS21 from Tewis is a compact system for cooling and deep-freezing. © Daikin
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The Spanish company is a leader in the technical planning and implementation of commercial refrigeration. This includes cooling, deep-freezing and highly efficient, integrated air-conditioningsystems. The company's 360° concept aims for optimal installation and efficient maintenance – tailored to suit the individual needs of the customer. Thanks to a closely coordinated and holistic approach by the company, energy consumption, performance, maintenance and much more are analysed and the best technology for all requirements defined.
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).
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