To provide an air-conditioning refrigerator having measures against failure of a refrigerating machine for refrigeration or freezing and to provide a method for controlling the air-conditioning refrigerator.
When this air-conditioning refrigerator 1 causes failure of a refrigerating system (a compressor 37) or a freezing system (a compressor 54) when cooling or heating, refrigerant coming out of evaporators 43, 49 is made to flow into a cascade heat exchanger 21 without passing through the compressor 37 or the compressor 54 gone to failure to cool it excessively. Control is changed to change outlet temperature TC2 on a case side passage 21B of the cascade heat exchanger 21 to an outlet temperature in failure. Refrigerant (refrigerant for cooling) on a cooling device (a cooling system part) 8 side is cooled to a temperature which gives priority to freezing and refrigeration in a freezing case 4 and a refrigerating case 3 by refrigerant (refrigerant for air-conditioning) on an air conditioner 6 side. Furthermore, during the operation, an operation condition by a remote operation device 29 on the air conditioner 6 side and operation for changing set temperatures are ignored to realize a forced operation condition.
COPYRIGHT: (C)2005,JPO&NCIPI
Eiji Ohashi
Kazutoyo Kagami
Hiroshi Hattogo
Kenji Yoshida
Kubota Toshiyuki
| JP57198965A | ||||
| JP2000193330A | ||||
| JP2002357367A |
Kushibuchi Kazue