A saddle-type window air conditioner comprises an indoor part, an outdoor part and a connecting part. The connecting part includes an indoor connecting box and an outdoor connecting box sleeved in each other. The indoor connecting box is connected with the indoor part, the outdoor connecting box is connected with the outdoor part, and the connecting part is provided with locking assemblies. Each of the locking assemblies includes a lock sleeve, a lock core, a push button and a rack. The lock sleeve is disposed on the indoor connecting box located on an outer side or on the outdoor connecting box, and is provided with a lock hole; the rack is disposed on the outdoor connecting box located on an inner side or on the indoor connecting box; the push button is connected with the lock core and configured to push the lock core to move; and the lock core is provided with a lock pillar. When the lock pillar is clamped and locked with the lock hole, the lock core is separated from the rack to extend or shorten the connecting part. When the lock pillar is separated from the lock hole, the lock core is clamped with the rack, and the connecting part cannot be extended, but can only be shortened under the action of an external force to realize the locking of the connecting part.

A frame that is configured to hold a window air conditioner unit includes a main frame body having an opening formed therein for receiving the air conditioner unit. The frame includes a pair of adjustable side support frames that are slidingly coupled to the main frame body for filling a space between sides of the air conditioner unit and sides of the window frame. Each of the side support frames includes a take-up device for securing the frame within a window channel of the window frame. The take-up device has a fixed stop fixedly attached to the side support frame and an adjustable stop that is movable in a forward-rearward direction. The take-up device further includes an actuator that is accessible to a user along the main frame body and is configured to move the adjustable stop in the forward-rearward direction.

A frame that is configured to hold a window air conditioner unit includes a main frame body having an opening formed therein for receiving the air conditioner unit. The frame includes a pair of adjustable side support frames that are slidingly coupled to the main frame body for filling a space between sides of the air conditioner unit and sides of the window frame. Each of the side support frames includes a take-up device for securing the frame within a window channel of the window frame. The take-up device has a fixed stop fixedly attached to the side support frame and an adjustable stop that is movable in a forward-rearward direction. The take-up device further includes an actuator that is accessible to a user along the main frame body and is configured to move the adjustable stop in the forward-rearward direction.

A base member includes a substantially horizontal main body that supports one or more components of a heating and cooling unit. The main body includes a conditioned space portion about a first side of the main body and a non-conditional space portion about a second side of the main body. A substantially vertical separation wall extends up from the main body and separates the conditioned space portion from the non-conditioned space portion. A lip is formed at least partially about the non-conditioned space portion. At least one drainage hole extends through the non-conditioned space portion. A surface of the non-conditioned space portion is sloped towards the at least one drainage hole. A drain pan is disposed about the conditioned space portion. At least one drainage tube is in fluid communication with the drain pan. A surface of the drain pan is sloped towards the at least one drainage tube.

A base member includes a substantially horizontal main body that supports one or more components of a heating and cooling unit. The main body includes a conditioned space portion about a first side of the main body and a non-conditional space portion about a second side of the main body. A substantially vertical separation wall extends up from the main body and separates the conditioned space portion from the non-conditioned space portion. A lip is formed at least partially about the non-conditioned space portion. At least one drainage hole extends through the non-conditioned space portion. A surface of the non-conditioned space portion is sloped towards the at least one drainage hole. A drain pan is disposed about the conditioned space portion. At least one drainage tube is in fluid communication with the drain pan. A surface of the drain pan is sloped towards the at least one drainage tube.

An air conditioning system and a method of installing the same are provided. In one aspect, an air conditioning system includes an indoor unit and an outdoor unit. The indoor unit is a split-system indoor unit that includes an indoor coil and an indoor fan for moving air over the indoor coil to condition a designated space. The outdoor unit is positioned within an opening defined by an exterior wall and includes an outdoor coil and an outdoor fan for moving air over the outdoor coil. The indoor coil of the indoor unit and the outdoor coil of the outdoor unit are fluidly coupled such that a sealed system is formed between the indoor and outdoor units. The outdoor unit can be a revamped packaged terminal air conditioner (PTAC) with the indoor sealed components removed therefrom. A streamlined sleeve cover can be connected to a sleeve of the revamped PTAC.

An air conditioning system and a method of installing the same are provided. In one aspect, an air conditioning system includes an indoor unit and an outdoor unit. The indoor unit is a split-system indoor unit that includes an indoor coil and an indoor fan for moving air over the indoor coil to condition a designated space. The outdoor unit is positioned within an opening defined by an exterior wall and includes an outdoor coil and an outdoor fan for moving air over the outdoor coil. The indoor coil of the indoor unit and the outdoor coil of the outdoor unit are fluidly coupled such that a sealed system is formed between the indoor and outdoor units. The outdoor unit can be a revamped packaged terminal air conditioner (PTAC) with the indoor sealed components removed therefrom. A streamlined sleeve cover can be connected to a sleeve of the revamped PTAC.

An air conditioning appliance may have a telescoping plenum attached to a housing of the air conditioning appliance. The telescoping plenum may be receivable within a wall channel defined by a structure wall along an axial direction. The telescoping plenum may include an interior portion and an exterior portion. The interior portion may include a duct wall and an outer flange extending radially outward from the duct wall. The interior portion may sealingly engage the housing along the axial direction in a plane perpendicular to the axial direction.

An air conditioning appliance may have a telescoping plenum attached to a housing of the air conditioning appliance. The telescoping plenum may be receivable within a wall channel defined by a structure wall along an axial direction. The telescoping plenum may include an interior portion and an exterior portion. The interior portion may include a duct wall and an outer flange extending radially outward from the duct wall. The interior portion may sealingly engage the housing along the axial direction in a plane perpendicular to the axial direction.

An air conditioning appliance may have a telescoping plenum attached to a housing of the air conditioning appliance. The telescoping plenum may be receivable within a wall channel defined by a structure wall along an axial direction. The telescoping plenum may include an interior portion and an exterior portion. The interior portion may include a duct wall and an outer flange extending radially outward from the duct wall to contact an internal surface of a structure wall. The telescoping plenum may further include a divider wall defining an upper passage and a lower passage within the telescoping plenum. The divider wall includes an interior divider panel fixed to the interior portion and an exterior divider panel fixed to the exterior portion. Each of the interior divider panel and the exterior divider panel is axially slidable along the other of the interior divider panel and the exterior divider panel.