FAILURE-DIAGNOSING SYSTEM OF ABSORPTION COLD/HOT WATER APPARATUS

摘要

PURPOSE: To provide a failure-diagnosing system in an absorption cold/hot water apparatus wherein it is properly and rapidly judged whether or not an absorption solution is mixed into a refrigerant without sampling the refrigerant. ;CONSTITUTION: A group of sensors 6 measure refrigerant circulation temperature T₂ and vapor temperature in a lower trunk. An arithmetic operation processing circuit 7 estimates a difference between the refrigerant circulation temperature and the vapor temperature (actually measured temperature difference dTep), and estimates 75 a difference (proper temperature difference dTep-n between the refrigerant circulation temperature and the vapor temperature upon normal operation based upon a freezing load. A deviation ddTep between the actually measured temperature difference and the proper temperature difference is estimated 73, and on the basis of the deviation concentration Deva of an absorption solution mixed into the refrigerant is estimated 76, and further a result thereof is outputted and displayed 8.;COPYRIGHT: (C)1995,JPO