A heat source side unit for an air conditioning apparatus includes a machine room in which a compressor is accommodated, an air-sending unit room in which an air-sending unit is accommodated, a separator for partitioning a space into the machine room and the air-sending unit room, a reactor installed in the machine room, and a reactor mounting member fixed to the separator on a side of the machine room and on which the reactor is mounted, and the reactor mounting member includes a first mounting unit and a second mounting unit corresponding to each of the reactors with the sizes different from each other, and on the reactor mounting member, the reactor is selectively mounted on either one of the first mounting unit and the second mounting unit corresponding to the size of the reactor.

A heat source side unit for an air conditioning apparatus includes a machine room in which a compressor is accommodated, an air-sending unit room in which an air-sending unit is accommodated, a separator for partitioning a space into the machine room and the air-sending unit room, a reactor installed in the machine room, and a reactor mounting member fixed to the separator on a side of the machine room and on which the reactor is mounted, and the reactor mounting member includes a first mounting unit and a second mounting unit corresponding to each of the reactors with the sizes different from each other, and on the reactor mounting member, the reactor is selectively mounted on either one of the first mounting unit and the second mounting unit corresponding to the size of the reactor.

An enhanced vapor injection air conditioning system (100) is provided and includes: a vapor injection compressor (1), a direction switching assembly (2), a first outdoor heat exchanger (3), a second outdoor heat exchanger (4) including first and second heat-exchange flow passages (41, 42), and an auxiliary electronic expansion valve assembly. A main electronic expansion valve assembly is connected between a first end (411) of the first heat-exchange flow passage and a second end (32) of the first outdoor heat exchanger. The auxiliary electronic expansion valve assembly has a first end connected with an inlet of the second heat-exchange flow passage (42), and a second end connected to a second end (412) of the first heat-exchange flow passage or between the main electronic expansion valve assembly and the first heat-exchange flow passage (41). A ratio DB of a sum of a caliber of the main electronic expansion valve assembly to that of the auxiliary electronic expansion valve assembly has a value range of 1≦DB≦7.

An apparatus includes a first metal beam and a mounting bracket. The first metal beam is arranged in a linearly horizontal direction and defines a plurality of first and second cavities along a top surface of the first metal beam. Each first cavity is of a first shape and is separated from another first cavity by a first distance. Each second cavity is of a second shape different from the first shape and is separated from another second cavity by a second distance greater than the first distance. The mounting bracket couples to the top surface of the first metal beam at a first mounting cavity of the plurality of second cavities and the top surface of the second metal beam at a second mounting cavity of the plurality of fourth cavities. The mounting bracket further couples to a compressor.

An outdoor unit includes: a heat exchanger to exchange heat between refrigerant and air; a first air blower and a second air blower to blow air on the heat exchanger; a compressor drive unit to drive a compressor compressing the refrigerant, the compressor drive unit including a power device; a cooling fin to cool the power device; a cooling-fin-temperature detection unit to detect temperature of the cooling fin; and a position determination unit to determine a position of the first air blower and a position of the second air blower by using the temperature of the cooling fin.

An outdoor unit includes: a heat exchanger to exchange heat between refrigerant and air; a first air blower and a second air blower to blow air on the heat exchanger; a compressor drive unit to drive a compressor compressing the refrigerant, the compressor drive unit including a power device; a cooling fin to cool the power device; a cooling-fin-temperature detection unit to detect temperature of the cooling fin; and a position determination unit to determine a position of the first air blower and a position of the second air blower by using the temperature of the cooling fin.

A refrigeration cycle apparatus has a compressor disposed via a bottom member of a housing, a second elastic member, a base, and a first elastic member. A first electric component that drives a motor for the compressor and a second electric component that performs another control are fixed to the base and disposed. The base has an upper surface that contacts the first elastic member and a lower surface that contacts the second elastic member. The first electric component and the second electric component are fixed to the upper surface directly or indirectly via a substrate and/or an electric-component casing. Top portions of the first electric component and the second electric component are lower than a top portion of the compressor.

A sound insulation assembly, and an air conditioner having same, to solve the problem of poor sound insulation. The sound insulation assembly of the air conditioner includes a housing and a cover; an accommodation space to accommodate a compressor assembly is formed in the housing; the top of the housing is covered with the cover; a sound insulation chamber is defined by the cover and the accommodation space; the compressor assembly is arranged in the sound insulation chamber; the sound insulation assembly further includes a first sealing component; the first sealing component is arranged on contact areas of the housing and the cover for sealing. The compressor assembly is arranged so that noise generated by operating of the compressor assembly can be better insulated in the sound insulation chamber.

An outdoor unit of an air-conditioning apparatus includes: a terminal unit that is provided on an outer peripheral surface of a compressor, and electrically connects components provided in the compressor and outside the compressor; a side soundproof cover that covers the outer peripheral surface of the compressor except for the terminal unit; and a terminal cover that covers the terminal unit exposed from the side soundproof cover to the outside of the side soundproof cover, and soundproofs the terminal unit. The terminal cover is attached to the side soundproof cover such that the state of the terminal cover can be changed between a state in which the terminal cover covers the terminal unit and a state in which the terminal cover does not cover the terminal unit.

An outdoor unit of an air-conditioning apparatus includes: a terminal unit that is provided on an outer peripheral surface of a compressor, and electrically connects components provided in the compressor and outside the compressor; a side soundproof cover that covers the outer peripheral surface of the compressor except for the terminal unit; and a terminal cover that covers the terminal unit exposed from the side soundproof cover to the outside of the side soundproof cover, and soundproofs the terminal unit. The terminal cover is attached to the side soundproof cover such that the state of the terminal cover can be changed between a state in which the terminal cover covers the terminal unit and a state in which the terminal cover does not cover the terminal unit.