To provide a failure diagnosing device of a refrigerating cycle device, and the refrigerating cycle device loading the same, capable of early predicting and detecting the failure based on a state quantity of the refrigerating cycle device as a whole.
This failure diagnosing device comprises an operating portion 102 performing composite variable calculation by combining measured values from detecting means, a comparing portion 105 for comparing a present operation state quantity as a state quantity calculated by applying the measured value obtained from a present operating state of a heat pump cycle as a plurality of variables, with a state quantity indicating a normal operation state or an abnormal operation state stored in a storing portion 104, and a judging portion 106 for judging a degree of normality or abnormality of the heat pump cycle, discrimination of normality/abnormality, or a cause of abnormality on the basis of the state quantities compared by the comparing portion 105 or the change of the state quantity.
| JP4592522 | Air conditioning system |
| JP2010032206 | OUTDOOR UNIT |
| JPH0953847 | CONTROLLER FOR CLEAN ROOM |
YAMASHITA KOJI
YANAGIHARA YUJI
IHAYAZAKA TARO
MITSUBISHI ELEC BUILDING TECHN
| JP2005207644A | 2005-08-04 | |||
| JPH03186170A | 1991-08-14 | |||
| JPH09113077A | 1997-05-02 |
| WO2006090451A1 | 2006-08-31 |
Kiyoshi Yasushima
Souji Sasaki
Noboru Omura
Takanashi Norio