An indoor heat exchanger includes a heat exchanger shell, a side plate structure including shell side plates arranged at both ends of the heat exchanger shell, heat exchange fins installed at the shell side plates provided in the heat exchanger shell, refrigerant pipes passing through the heat exchange fins, and connection pipes protruding from an end of the heat exchanger shell and each connected to ends of two refrigerant pipes on same side.

An indoor heat exchanger includes a heat exchanger shell, a side plate structure including shell side plates arranged at both ends of the heat exchanger shell, heat exchange fins installed at the shell side plates provided in the heat exchanger shell, refrigerant pipes passing through the heat exchange fins, and connection pipes protruding from an end of the heat exchanger shell and each connected to ends of two refrigerant pipes on same side.

A symmetric pair of mounting brackets for mounting one of a plurality of air filters to a mounting plate of an air conditioner unit are provided. The mounting brackets each define a plurality of mounting surfaces with equidistantly space mounting holes. The mounting surfaces are spaced apart from a plurality of retention surfaces, with the distance between each respective mounting surface and retention surface varying to accommodate a different filter size such that the air conditioner may operate using different filter sizes by simply changing the installation orientation of the mounting brackets.

A symmetric pair of mounting brackets for mounting one of a plurality of air filters to a mounting plate of an air conditioner unit are provided. The mounting brackets each define a plurality of mounting surfaces with equidistantly space mounting holes. The mounting surfaces are spaced apart from a plurality of retention surfaces, with the distance between each respective mounting surface and retention surface varying to accommodate a different filter size such that the air conditioner may operate using different filter sizes by simply changing the installation orientation of the mounting brackets.

A portable and reusable installation platform for easing the installation or maintenance of an air conditioner on a vertical wall includes at least one support base upon which at least part of the air conditioner is positioned during the installation or maintenance thereof. At least one connector extends from the first end of the support base and is configured to releaseably engage the wall. At least one support leg extends downwardly from the support base and is configured to abut the wall to support the weight of the air conditioner placed upon the support base.

Disclosed are an electric control box and a window air conditioner. The electric control box (200) includes a box body (210) including a bottom plate (211) and a box cover (212) that covers the bottom plate (211). The box cover (212) includes an outer box cover (500) and an inner box cover (600), and an edge of the inner box cover (600) is configured with a water blocking member (611); and the water blocking member (611) protrudes outward from the edge of the inner box cover (600) toward an edge of the outer box cover (500), and the water blocking member (611) is configured for blocking water on the outer box cover (500) from flowing into the inner box cover (600).

An installation device configured to hold a window mounted split air-conditioner. The installation device comprises a support structure configured to be mounted on the window sill, and a mechanism for guiding the outdoor unit from a position inside the window opening to a position outside the window opening, and holding the outdoor unit in that position for use.

An electric control box assembly includes an outer box body, an inner box body provided in the outer box body and including an insulating member, an electric control board provided in the inner box body, and a component provided in the outer box body and located outside the inner box body. The component is connected with the inner box body.

A window air conditioner is disclosed. The window air conditioner has a casing, an indoor heat exchanger, an indoor wall and a fresh air housing. The casing has an indoor air inlet and an indoor air outlet, and the indoor heat exchanger is mounted in the housing and corresponds to the indoor air inlet. The indoor wall is mounted in the casing, and has an indoor air duct for communicating an air outlet side of the indoor heat exchanger with the indoor air outlet. The fresh air housing is installed in the casing, and has a fresh air inlet, and a first fresh air outlet and a second fresh air outlet communicated with the fresh air inlet. The first fresh air outlet is located on the air inlet side of the indoor heat exchanger, and the second fresh air outlet is communicated with the indoor air duct.

A frame is provided and is adapted to be installed in an opening and between the external unit and the roof or wall and having locating elements on each of a first side and an opposite second side of the frame, the locating elements or projections being configured together to locate the frame in the opening and to locate the frame in the external unit. The locating elements in the frame are positioned so that if the opening is the first type, the frame is adapted to be installed with the first side facing the roof or wall, and if the opening is the second type, the frame is adapted to be installed with the first side facing the external unit.