Heat pump system and control method therefor

Abstract

A heat pump system is provided. The heat pump system includes a compressor configured to compress a refrigerant, a refrigerant-water heat exchanger in which heat exchange occurs between the compressed refrigerant and water, an expansion valve configured to expand the refrigerant condensed in the refrigerant-water heat exchanger, an outdoor heat exchanger in which heat exchange occurs between the refrigerant expanded in the expansion valve and outdoor air, an outdoor fan arranged adjacent to the outdoor heat exchanger, a condensation temperature sensor configured to detect a temperature of the refrigerant condensed in the refrigerant-water heat exchanger, an incoming water temperature sensor configured to detect a temperature of water entering the refrigerant-water heat exchanger, an outgoing water temperature sensor configured to detect a temperature of water heat-exchange in the refrigerant-water heat exchanger and exiting, memory storing instructions, and one or more processors. The instructions, when executed by the one or more processors individually or collectively, cause the heat pump system to identify whether the refrigerant-water heat exchanger is in an abnormal state based on results of detecting by the condensation temperature sensor, the incoming water temperature sensor, and the outgoing water temperature sensor, and turn off the compressor and the outdoor fan based on the refrigerant-water heat exchanger being in the abnormal state, and turn on the compressor in a turned-off state of the outdoor fan.

Dependencies are inferred from the claim text.