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Arneg and Carel provide supermarket efficiency boost

ITALY: Controls manufacturer Carel has worked with refrigerated cabinet manufacturer Arneg to provide high efficiency CO2 refrigeration for a new Famila supermarket in the northern Italian town of Lonigo.

Supermarket owner Maxi Di Srl chose Arneg to create an environmentally-sustainable food refrigeration system, using a zero-impact gas, while at the same time ensuring the highest efficiency on the market. Arneg involved Carel, with its modulating ejector technology, to help meet these ambitious goals. 

The 2,300m² store employs an eight compressor Arneg Booster transcritical rack, supplying over 50 refrigerated cabinets – 44 medium temperature and 13 low temperature. All the cabinets are equipped with Carel’s MPX PRO electronic controllers.

The CO2 compressor rack is controlled by Carel’s pRack pR300T, and three Carel EmJ modulating ejectors for a total capacity of 185kW. This solution is said to bring energy savings during the summer of up to of 25%, and in winter, via the heat recovery system that provides heating inside the building. 

The entire system is supervised by Arneg service through its IRIS Energy control centre, optimising performance, managing unforeseen events and energy wastage also thanks to the Carel boss supervisor, which acquires system data and organises these onto a dashboard for predictive maintenance. 

“For years, Arneg has been working effectively with Carel, in a partnership based on mutual exchange. Research and technological innovation have allowed us over time to offer increasingly efficient and environmentally-friendly solutions, just like the one at the Famila supermarket in Lonigo,” commented Enrico Zambotto, Arneg’s refrigeration engineering director. “As evidence of how much we are investing in this technology, we also now adopting ejectors in other installations, always using natural refrigerants, at numerous stores in Italy.”

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