Heos sistema: Real comparison against a waterloop ON-OFF system

The latest convenience store opened on the financial sector of São Paulo,  represents the state of the art for Energy Saving and Food Quality technology based on next generation of showcases working on a DC waterloop system.
The project has been realized with the aim to experience the benefits, mainly in terms of energy saving and food preservation, of new self-contained cabinets equipped with variable speed compressors technology. Another key point of Heos sistema is represented by the operational costs (OPEX) reduction, associated to the sustainable eco-friendly initiative of the retailer.
Along with the constant support of CAREL, the other player involved in the opening of this store was Eletrofrio: brazilian company based in the south of Brazil, has more than 70 years experience designing, assembling and installing refrigeration systems for commercial application.
Thanks to the close collaboration between CAREL and Eletrofrio, the results obtained include:
• Energy saving of 39% if compared to an on/off waterloop system.
• Temperature stability which means higher food preservation and longer
days shelf-life. This is obtained by a system designed to modulate its capacity by controlling the refrigerant flow inside evaporator and wide variable speed compressor which almost never stops, always supplying the actual cooling load.
• Evaporating temperature increased up to 8K above standard solution, thanks to DC variable speed compressor. This technology allows to reduce the consumption by decreasing the compressor speed up to 16% of maximum speed.

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