| 摘要 |
<p>A multiple refrigerating device capable of saving an energy and preventing global warming through the achievement of a high coefficient of performance (COP) by using R32 as a refrigerant, wherein R32 as the refrigerant is circulated through a refrigerant circuit comprising an outdoor unit (20) having a compressor (23), a condenser (22), and an expansion means (26) and a plurality of indoor units (1) each having an evaporator (2) to perform a refrigerant cycle, the filling amount of R32 into the refrigerant circuit is set within the range of 120 to 300 g/kW (by refrigerating capacity) and within the range of 84 to 300 g/L (by volume in the condenser).</p> |
