Air conditioner
AssigneeDaikin Industries, Ltd.
InventorMotoki Takagi
Life of this patent
Estimating the term…
Abstract
An air conditioner is provided with a refrigerant circuit that has a first refrigerant path to which a compressor, a first utilization-side heat exchanger, a first expansion valve, and a heat source-side heat exchanger are connected in order. A control unit controls the compressor and the first expansion valve. When the control unit receives a request for high-temperature air that temporarily increases the temperature of the hot air blown out through the first utilization-side heat exchanger, the control unit changes the control of the first expansion valve so that the temperature of a refrigerant that flows through the first utilization-side heat exchanger increases.
Claims9
An air conditioner comprising:
- a refrigerant circuit that has a first refrigerant path to which a compressor, a first utilization-side heat exchanger, a first expansion valve, and a heat source-side heat exchanger are connected in order;
- and
- a control unit that controls the compressor and the first expansion valve,
- wherein the control unit changes control of the first expansion valve such that a temperature of a refrigerant that flows through the first utilization-side heat exchanger increases so as to increase an average temperature of the first utilization-side heat exchanger when receiving a request for high-temperature air that temporarily increases a temperature of hot air blown out through the first utilization-side heat exchanger,
- wherein the refrigerant circuit further includes at least one second refrigerant path to which the compressor, a second utilization-side heat exchanger, a second expansion valve controlled by the control unit, and the heat source-side heat exchanger are connected in order, and
- when receiving the request for high-temperature air, the control unit changes the turn-off condition of the heating operation of the second refrigerant path, which is not required for the high-temperature air, so that the heating operation does not turn off before the change of the turn-off condition but turns off after the change of the turn-off condition in a predetermined state.
An air conditioner comprising:
- a refrigerant circuit that has a first refrigerant path to which a compressor, a first utilization-side heat exchanger, a first expansion valve, and a heat source-side heat exchanger are connected in order;
- and
- a control unit that controls the compressor and the first expansion valve,
- wherein the control unit changes control of the first expansion valve such that a temperature of a refrigerant that flows through the first utilization-side heat exchanger increases when receiving a request for high-temperature air that temporarily increases a temperature of hot air blown out through the first utilization-side heat exchanger,
- wherein the refrigerant circuit further includes at least one second refrigerant path to which the compressor, a second utilization-side heat exchanger, a second expansion valve controlled by the control unit, and the heat source-side heat exchanger are connected in order, and
- when receiving the request for high-temperature air, the control unit changes a turn-off condition of a heating operation of the second refrigerant path such that a difference between a set temperature and an indoor temperature, which is a condition for turning off the heating operation of the second refrigerant path for which the request for high-temperature air has not been made, is reduced or set to 0.
Dependencies are inferred from the claim text.