| 摘要 |
<p>The invention concerns an installation comprising a cupboard with a top section (5) forming a reserve of units of cold (9), and a preserving section (6) provided with shelves (10) and trays (12) with through slots (13) for placing containers (15). The invention is characterised in that each insulating shelf (10) comprises, in each zone supporting the container (15) base meal service trays (18), a tubular pipe exchanger (18), connected to a cooling pipe circuit, while at least one exchanger (18) of each shelf is associated with electric heating means (30), and the cold unit reserve consists of a sealed chamber (23) formed by and/or containing tubular heat exchanging pipes (24) whereof the tubular networks are interconnected and connected to a cooling pipe circuit (21, 22).</p> |
