Abstract: An air-conditioning system includes a refrigerant system in which an outdoor unit, one or more indoor units, and one or more ventilators are connected by a refrigerant pipe and in which refrigerant circulates, and a control device configured to control the refrigerant system. The control device includes a target temperature adjustment unit configured to adjust a target evaporating temperature based on a detection value detected by a temperature and humidity detection unit provided to at least one of the indoor unit and the ventilator that satisfies a specific criterion, and an air-conditioning control unit configured to control the refrigerant system such that the evaporating temperature of each of the indoor unit and the ventilator is equal to the target evaporating temperature adjusted by the target evaporating temperature.

Abstract: An air-conditioning system includes a refrigerant system in which an outdoor unit, one or more indoor units, and one or more ventilators are connected by a refrigerant pipe and in which refrigerant circulates, and a control device configured to control the refrigerant system. The control device includes a target temperature adjustment unit configured to adjust a target evaporating temperature based on a detection value detected by a temperature and humidity detection unit provided to at least one of the indoor unit and the ventilator that satisfies a specific criterion, and an air-conditioning control unit configured to control the refrigerant system such that the evaporating temperature of each of the indoor unit and the ventilator is equal to the target evaporating temperature adjusted by the target evaporating temperature.

Abstract: An outdoor unit including a compressor is configured to compress refrigerant, a heat source-side air sending device is configured to suck air, a heat source-side heat exchanger is configured to exchange heat between the refrigerant and the air, and a controller is configured to control the compressor, the heat source-side air sending device, and the heat source-side heat exchanger, in which the heat source-side air sending device is provided in an upper part of the outdoor unit, the controller is provided in a lower part of the outdoor unit, the heat source-side heat exchanger is provided along outer peripheral side surfaces of the outdoor unit, and a part of the heat source-side heat exchanger is provided along a working plane used by an engineer for maintenance work and is provided above the controller.

Abstract: An air-conditioning apparatus includes a heat medium circuit in which a compressor, a flow switching unit, a flow regulating unit, a gas header, a heat source-side heat exchanger, a distributor, an expansion unit, and a use-side heat exchanger are connected by a pipe, and during a defrosting operation to defrost the heat source-side heat exchanger, heat medium circulates, in order, the compressor, the flow switching unit, the gas header, the heat source-side heat exchanger, the distributor, the expansion unit, and the use-side heat exchanger. The heat source-side heat exchanger includes a first heat exchange unit, and a second heat exchange unit provided lower than the first heat exchange unit. The flow regulating unit is configured to, during the defrosting operation, regulate a flow rate of heat medium flowing through the first heat exchange unit and a flow rate of heat medium flowing through the second heat exchange unit.

Abstract: An outdoor unit including a compressor is configured to compress refrigerant, a heat source-side air sending device is configured to suck air, a heat source-side heat exchanger is configured to exchange heat between the refrigerant and the air, and a controller is configured to control the compressor, the heat source-side air sending device, and the heat source-side heat exchanger, in which the heat source-side air sending device is provided in an upper part of the outdoor unit, the controller is provided in a lower part of the outdoor unit, the heat source-side heat exchanger is provided along outer peripheral side surfaces of the outdoor unit, and a part of the heat source-side heat exchanger is provided along a working plane used by an engineer for maintenance work and is provided above the controller.

Abstract: An air-conditioning apparatus includes a heat medium circuit in which a compressor, a flow switching unit, a flow regulating unit, a gas header, a heat source-side heat exchanger, a distributor, an expansion unit, and a use-side heat exchanger are connected by a pipe, and during a defrosting operation to defrost the heat source-side heat exchanger, heat medium circulates, in order, the compressor, the flow switching unit, the gas header, the heat source-side heat exchanger, the distributor, the expansion unit, and the use-side heat exchanger. The heat source-side heat exchanger includes a first heat exchange unit, and a second heat exchange unit provided lower than the first heat exchange unit. The flow regulating unit is configured to, during the defrosting operation, regulate a flow rate of heat medium flowing through the first heat exchange unit and a flow rate of heat medium flowing through the second heat exchange unit.