A gas-side stop valve on the gas refrigerant side and a liquid-side stop valve on the liquid refrigerant side are provided in a package of an outdoor unit. A gas-side filter on the gas refrigerant side is mounted on the indoor unit side relative to the gas-side stop valve and inside the package of the outdoor unit. A liquid-side filter 9 on the liquid refrigerant side is mounted on the indoor unit side relative to the liquid-side stop valve and inside the package of the outdoor unit. As a result, it is not necessary to ensure a place for mounting the gas-side filter and the liquid-side filter at the time of installation on site and the workability can be improved.

A gas-side stop valve on the gas refrigerant side and a liquid-side stop valve on the liquid refrigerant side are provided in a package of an outdoor unit. A gas-side filter on the gas refrigerant side is mounted on the indoor unit side relative to the gas-side stop valve and inside the package of the outdoor unit. A liquid-side filter 9 on the liquid refrigerant side is mounted on the indoor unit side relative to the liquid-side stop valve and inside the package of the outdoor unit. As a result, it is not necessary to ensure a place for mounting the gas-side filter and the liquid-side filter at the time of installation on site and the workability can be improved.

An air-conditioning apparatus includes a refrigerant circuit in which a compressor, a heat-source-side heat exchanger, a heat-source-side expansion device, and a circuit-circuit heat exchanger are connected via a refrigerant pipe and refrigerant circulates, and a heat medium circuit in which a pump, the circuit-circuit heat exchanger, a load-side expansion device, and a load-side heat exchanger are connected via a heat medium pipe and a heat medium circulates. The air-conditioning apparatus includes a radiator that is connected to the heat medium pipe and a control unit that is attached to the radiator. The circuit-circuit heat exchanger exchanges heat between the refrigerant circulating in the refrigerant circuit and the heat medium circulating in the heat medium circuit. The control unit is cooled via the radiator by the heat medium flowing in the heat medium pipe.

An air-conditioning apparatus includes a refrigerant circuit in which a compressor, a heat-source-side heat exchanger, a heat-source-side expansion device, and a circuit-circuit heat exchanger are connected via a refrigerant pipe and refrigerant circulates, and a heat medium circuit in which a pump, the circuit-circuit heat exchanger, a load-side expansion device, and a load-side heat exchanger are connected via a heat medium pipe and a heat medium circulates. The air-conditioning apparatus includes a radiator that is connected to the heat medium pipe and a control unit that is attached to the radiator. The circuit-circuit heat exchanger exchanges heat between the refrigerant circulating in the refrigerant circuit and the heat medium circulating in the heat medium circuit. The control unit is cooled via the radiator by the heat medium flowing in the heat medium pipe.

A heat exchange unit includes a heat exchanger, a structure supporting the heat exchanger, an insulating member electrically insulating the heat exchanger from the structure, a compressor electrically connected to the heat exchanger and the structure, and a connection member attached to the heat exchanger. The connection member electrically connects the heat exchanger and the structure. The connection member is provided separately from a first conductive path that electrically connects the compressor and the heat exchanger, and a second conductive path that electrically connects the compressor and the structure.

A heat exchange unit includes a heat exchanger, a structure supporting the heat exchanger, an insulating member electrically insulating the heat exchanger from the structure, a compressor electrically connected to the heat exchanger and the structure, and a connection member attached to the heat exchanger. The connection member electrically connects the heat exchanger and the structure. The connection member is provided separately from a first conductive path that electrically connects the compressor and the heat exchanger, and a second conductive path that electrically connects the compressor and the structure.

An air conditioning indoor unit that blows air, which has exchanged heat with a refrigerant flowing through a heat exchanger, into an air conditioning target space, includes: a liquid refrigerant pipe and a gas refrigerant pipe that are connected to the heat exchanger; a casing that accommodates the heat exchanger and that has an opening communicating with the air conditioning target space; a first shutoff valve in the liquid refrigerant pipe; a second shutoff valve in the gas refrigerant pipe; and a partition wall that separates a first space from a second space in the casing. The first shutoff valve and the second shutoff valve are in the first space. The second space communicates with the air conditioning target space via the opening.

The present disclosure relates to an outdoor unit of an air conditioner including: a case that forms an outer shape; a controller that is disposed inside the case and controls the operation of various components of the air conditioner; a heat dissipation member connected to the controller to dissipate heat generated by the controller; and a support member that is coupled with the heat dissipation member to fix the position of the heat dissipation member, and has an insertion hole into which the heat dissipation member is inserted, wherein the heat dissipation member is disposed to face the controller with respect to the support member, and at least partial area of the heat dissipating member penetrates the insertion hole to prevent damage to a structure that dissipates heat of the controller to an outdoor unit of the air conditioner that is in contact with the controller.

The present disclosure relates to an outdoor unit of an air conditioner including: a case that forms an outer shape; a controller that is disposed inside the case and controls the operation of various components of the air conditioner; a heat dissipation member connected to the controller to dissipate heat generated by the controller; and a support member that is coupled with the heat dissipation member to fix the position of the heat dissipation member, and has an insertion hole into which the heat dissipation member is inserted, wherein the heat dissipation member is disposed to face the controller with respect to the support member, and at least partial area of the heat dissipating member penetrates the insertion hole to prevent damage to a structure that dissipates heat of the controller to an outdoor unit of the air conditioner that is in contact with the controller.

A heat exchanger includes: a main body; and a tube sheet that is bonded to the main body with a brazing material and is used to fix the main body to a support by a fixing member. The tube sheet includes: a bonding surface to which the brazing material is applied; a rising portion that rises from the bonding surface; and a through-hole through which the fixing member is passed. The through-hole is opened at the rising portion, penetrates the tube sheet, and has an inner peripheral surface to which the brazing material is not applied. The main body includes heat transfer tubes through which refrigerant flows, and the tube sheet is bonded to surface of the heat transfer tube.