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The new frontier for refrigeration system design

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<h4 style="font-size: 1.2em; line-height: 1.2em; font-family: 'Open Sans', sans-serif, Arial, Helvetica, Verdana, sans-serif;">Heos System is the new concept offered by CAREL for commercial refrigeration.</h4>
<h3> <cite style="font-size: 1.143em; line-height: 1.143em;">A new way of developing refrigeration systems that comprises plug-in cabinets featuring simple on-board refrigeration units with DC inverter compressors. The heat of condensation is carried outside of the store via a simple water loop, which is in turn is cooled by an outdoor dry cooler.</cite></h3>
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<h4 style="font-size: 1.2em; line-height: 1.2em; font-family: 'Open Sans', sans-serif, Arial, Helvetica, Verdana, sans-serif;"><strong>This new type of refrigeration system stands out for three simple reasons:</strong></h4>
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<img src="http://www.carel.com/documents/10191/111601/80x100.jpg/1cf99246-565a-4267-a82d-8b9ee058099a?t=1432124066000" alt="heos 80%" width="99" height="99" />
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<div align="left">No long copper pipes;</div></li>
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<div align="left">No comp rack and receivers;</div></li>
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<div align="left">1-2kg refrigerant charge for cabinets</div></li>
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<div align="left">From «multiplexed systems» 10-15% to «integral cabinets» 1-2%;</div></li>
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<div align="left">No welding on the field;</div></li>
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<div align="left">Factory tested units.</div></li>
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<img src="http://www.carel.com/documents/10191/111601/25x100.jpg/732984ea-3755-4182-ae8a-55fa807b35db?t=1432124065000" alt="heos 25%" width="99" height="99" />
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<div align="left">High efficiency DC compressors;</div></li>
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<div align="left">Individual evap. temperature;</div></li>
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<div align="left">Fully controlled performances</div></li>
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<h4 style="font-size: 1.2em; line-height: 1.2em; font-family: 'Open Sans', sans-serif, Arial, Helvetica, Verdana, sans-serif;">The fundamental concepts of this system are:</h4>
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<td valign="top"><cite style="font-size: 1.143em; line-height: 1.143em;">1. Flexibility</cite></td>
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This is an increasing need for all supermarket chains, mainly as a consequence of growth in the convenience store segment, which requires flexible installation, and the possibility to change and redesign spaces and maximise display area.
<ul>
    <li>No more need of compressor rack: <strong>Wider sales area</strong>;</li>
    <li>Easy installation or deinstallation of new/promotional cabinets: <strong>Flexible sales area</strong>;</li>
    <li>Possibility to easly move cabinets inside the supermarket: <strong>Easy layout change</strong>;</li>
    <li>Critical components fully contained into the cabinet: <strong>High investment recovery </strong>in case in case of store relocation.</li>
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<div align="center"><img style="width: 385px; height: 348px;" src="http://www.carel.com/documents/10191/111601/heos_banco.jpg/b8640f15-16ab-43ad-b22d-4238bec980fc?t=1432124404000" alt="" /></div>
<cite style="font-size: 1.143em; line-height: 1.143em;">2. Energy efficiency</cite>

 

Primarily due to the use of <strong>DC inverter compressors</strong>, specifically designed to maximise efficiency when operating at part loads and with a wide range of speed modulation, when coupled with electronic expansion valves the energy efficiency of a Heos system is further enhanced thanks to complete control of the various units, maximising performance through the use of advanced algorithms.
<ul>
    <li>higher efficiency at part load;</li>
    <li>wide modulation range: from 15 to 90 rps;</li>
    <li>optimum food temperature control;</li>
    <li>full control of refrigeration unit, safe envelope management;</li>
    <li>COP calculation, predictive algorithms and real defrost on demand.</li>
</ul>
<div align="center"><img src="http://www.carel.com/documents/10191/111601/heos_graph.png/c84703e1-c8d0-486b-9aa7-279dc0269ec8?t=1432124067000" alt="heso graph" width="331" height="231" /></div>
<strong>DC vs. ON/OFF compressors</strong>

The wide range of speed modulation and intrinsic efficiency of DC compressors mean they can guarantee, compared to traditional on/off units:
<ul>
    <li>Energy saving of up to 25%;</li>
    <li>Lower noise and smaller dimensions;</li>
    <li>Greater reliability due to less on/off cycles;</li>
    <li>More stable control.</li>
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<div id="dstTextBox" class="yt-area-textbox yt-area-textbox__textbox" tabindex="0"><span data-align="0:8">Source: <a href="http://www.carel.com/heos-sistema" target="_blank">Carel</a>
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