Refrigerating circuit device, has refrigerating circuit with compressor for compressing a refrigerant, which has high temperature and high pressure, and controller is also provided, which controls delivered quantity of compressor

摘要

The refrigerating circuit device (100) has a refrigerating circuit (110) with a compressor (111) for compressing a refrigerant, which has a high temperature and high pressure, and also for the delivery of the refrigerant. The compressor delivers a controlled quantity. A controller (120) is provided, which controls the delivered quantity of the compressor. The controller performs a computation for making a discharge pressure for delivered refrigerants by the compressor, which is same or smaller than an end discharge pressure.