Patent ID: 10989428

Abstract:
A performance diagnosis device for an air conditioner includes: a data collection unit that collects and records operation data on the air conditioner; an equipment characteristic database that is a data group covering operation conditions meeting the specifications of the air conditioner; a reference data creation unit that calculates individual characteristic curved surface data by using the operation data possessed by the data collection unit and the equipment characteristic database; and a performance evaluation unit that compares part of the operation data possessed by the data collection unit with the individual characteristic curved surface data to evaluate the performance of the air conditioner, in which the individual characteristic curved surface data is corrected with respect to the equipment characteristic database so as to correspond to the operation data possessed by the data collection unit. Thus, it is possible to detect the performance deterioration of the air conditioner regardless of the magnitude of the air conditioning load and to clarify the necessity of the maintenance work for the air conditioner.