Performance deterioration diagnosis system for refrigeration cycle equipment

摘要

PROBLEM TO BE SOLVED: To provide a performance deterioration diagnosis system of a refrigeration cycle apparatus capable of accurately identifying a cause of performance deterioration. A performance deterioration diagnosis system 200 is a performance deterioration diagnosis system of an air conditioner 100 having a refrigerant circuit including a compressor, a heat source side heat exchanger, and a utilization side heat exchanger. The performance deterioration diagnosis system includes a determination unit 216 and an air conditioning control unit 214. The determination unit determines the performance deterioration of the air conditioner for each of the plurality of performance deterioration factors of the air conditioner based on the index representing the operating state of the air conditioner. When the judgment unit judges the performance deterioration of the air conditioner for each of the performance deterioration factors, the air conditioning control unit sets the proper operating conditions suitable for judging the performance deterioration of the air conditioner due to the performance deterioration factor to be judged. Control the operating conditions of the air conditioner. [Selection diagram] Fig. 1