| 摘要 |
<P>PROBLEM TO BE SOLVED: To protect a compressor against the load of operation in an insufficient refrigerant state by avoiding a deficiency of a refrigerant in each heat source unit of a condensing unit set which merges and uses refrigerant supplied from a plurality of heat source units for a refrigeration cycle. <P>SOLUTION: In the condensing unit set which merges and uses the refrigerant supplied from the plurality of heat source units for the refrigeration cycle, each heat source unit includes a determination part which includes an outdoor heat exchanger, a compressing mechanism, a fan mechanism part, and a high-pressure sensor unit detecting high pressure of a high-pressure refrigerant discharged from the compressing mechanism. The condensing unit set includes a determination part which determines a heat source unit whose high pressure is higher than those of other heat source units, a state discrimination part which discriminates a heat source unit in an insufficient refrigerant state, and a control part which drives and controls the fan mechanism part of the heat source unit discriminated to have higher high pressure than any other heat source unit and to be in the insufficient refrigerant state to increase the rotating speed of the fan. <P>COPYRIGHT: (C)2013,JPO&INPIT |
