Patent ID: 11913680
Assignee: CARRIER CORPORATION
Field: Thermal processes and apparatus (Mechanical engineering)
Classification: CPC F | IPC F

Claim 0:
1. A heat pump system, comprising:
a first unit comprising a compressor, a switching device connected to the compressor, a first flow path and a second flow path connected to the switching device, and at least one first heat exchangers on the first flow path, wherein the switching device is switchable between a first position and a second position so as to deliver refrigerant compressed by the compressor to the first flow path or the second flow path, respectively;
a second unit connected to the first flow path of the first unit, and comprising a second heat exchanger; and
a third unit connected to the second flow path of the first unit and connected to the second unit, and comprising at least one third heat exchangers; wherein:
the heat pump system is capable of operating in a cooling and water heating mode and a heating and water heating mode, wherein, in the cooling and water heating mode, the heat pump system is configured to switch the switching device to the first position and connect the at least one first heat exchangers and the second heat exchanger in series, and refrigerant compressed by the compressor passes through the at least one first heat exchangers and the second heat exchanger connected in series via the first flow path, and returns to the compressor after passing through a first expansion device and the at least one third heat exchangers; and
wherein, in the heating and water heating mode, the heat pump system is configured to switch the switching device to the second position and connect the second heat exchanger and the at least one third heat exchangers in parallel, refrigerant compressed by the compressor passes through the second heat exchanger and the at least one third heat exchangers connected in parallel via the second flow path, and returns to the compressor after passing through a second expansion device and the at least one first heat exchangers;
further comprising a cooling mode, wherein in the cooling mode, the heat pump system is configured to switch the switching device to the first position, and bypass the second heat exchanger.