Hygienically cooling food and beverages quieter and with less power, with GEA Küba ceiling-mounted air coolers and their new EC motors
16. October 2014 With its recently redesigned GEA Küba air coolers, GEA Heat Exchangers has fulfilled the wishes of many of its customers for even more energy efficiency and for the use of natural refrigerants in supermarkets and food and beverage retailers.
Energy-efficient EC motors assure significantly less power consumption. Heat exchangers especially designed for applications with CO2 allow accurate regulation for part-loading. This minimizes the compressor run times required and reduces total energy consumption of the system. Owing to EC fans – which will be installed as standard equipment beginning on January 1, 2015 – and to the internal speed control, the new coolers require up to 70 % less power than with comparable equipment with AC shaded-pole motors. Light, quiet, and maintenance-free ball bearings assure hushed operation of the EC fans for many years. The new design with its enhanced hygiene features especially pays for the refrigeration of fresh food: the drip tray is hinged and thus simplifies cleaning and maintenance of the system.
GEA Küba junior DF for small cooling/deep-freeze cold rooms and for large refrigerated cabinets
One good example for this development is the re-designed model of the GEA Küba junior DF series. These compact ceiling-mounted air coolers have been designed for the refrigeration of open and packaged foods in small cold rooms and in large refrigerated cabinets. The GEA Küba junior DF meets the typical requirements placed by food service retailers and the food service industry. An integrated deflector ensures optimal direction of air flow by directing the cold air along the ceiling of the cold room, which enables uniform distribution of temperature. The powder-coated aluminum casing is corrosion-resistant, with the result that pockets of dirt cannot collect – which in turn prevents soiling and proliferation of microorganisms. From 2015, the GEA Küba junior DF will be available in 14 model sizes, with cooling duty from 0.4 to 2 kW and maximum air flow of 250 m³/h to 960 m³/h. These new ceiling-mounted air coolers provide air intake temperatures between -25 °C and +20 °C. In the standard model, the units are set up for operation with commonly used refrigerants. As an option, a CO2 variant is available that features one pressure stage up to 60 bar, which is suited for use in the transcritical range and medium temperature cooling range.
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