An air conditioner installable on a window frame and having a ventilation function. The air conditioner comprises a cabinet comprising a first inlet hole, a second inlet hole and a third inlet hole, a first heat exchanger provided inside the cabinet to allow indoor air, which is introduced through the first inlet hole, to exchange heat, a second heat exchanger provided inside the cabinet to allow outdoor air, which is introduced through the second inlet hole, to exchange heat, and a third heat exchanger provided inside the cabinet to be located between the first heat exchanger and the second heat exchanger in a height direction of the cabinet, and provided to allow outdoor air, which is introduced through the third inlet hole, and condensed water, which is generated in the first heat exchanger, to exchange heat with each other.

A single-package air conditioner unit may include a housing, an outdoor heat exchanger, an indoor heat exchanger, an indoor air conduit, and an internal shield. The indoor fan may be held within a fan cowl defining a cowl outlet. The indoor air conduit may be mounted to the fan cowl and extend upward from the cowl outlet to an indoor outlet defined through the housing to guide air from the indoor fan. The indoor air conduit and the fan cowl may separate at least a portion of the indoor portion from the outdoor portion. The internal shield may be disposed within the outdoor portion rearward from the indoor air conduit and the fan cowl. The internal shield may extend between an upper edge and a lower edge. The lower edge may be disposed between the downward bottom end and the cowl outlet relative to a vertical direction.

A single-package air conditioner unit may include a housing, an outdoor heat exchanger, an indoor heat exchanger, an indoor air conduit, and an internal shield. The indoor fan may be held within a fan cowl defining a cowl outlet. The indoor air conduit may be mounted to the fan cowl and extend upward from the cowl outlet to an indoor outlet defined through the housing to guide air from the indoor fan. The indoor air conduit and the fan cowl may separate at least a portion of the indoor portion from the outdoor portion. The internal shield may be disposed within the outdoor portion rearward from the indoor air conduit and the fan cowl. The internal shield may extend between an upper edge and a lower edge. The lower edge may be disposed between the downward bottom end and the cowl outlet relative to a vertical direction.

An air conditioner unit is configured for automatically detecting a restricted duct and adjusting fan speed schedules in response. The air conditioner unit includes an indoor fan including a drive motor for selectively rotating the indoor fan to urge a flow of air through the indoor portion and a controller is configured for sending a control signal to the drive motor to rotate the indoor fan to an actual fan speed. Based on the actual fan speed and a unit voltage, the controller obtains a target control signal, e.g., via a lookup table, and determines that a restricted duct condition exists if the control signal is different than the target control signal. The controller adjusts the operation of the indoor fan in response to determining that the restricted duct condition exists.

An air conditioner includes a suction panel including a suction grille that defines a suction port configured to receive air, an heat exchanger and a fan that are positioned within the case, and an ion generator disposed in the suction panel and configured to generate ions in the air received through the suction port. The suction panel defines an installation groove recessed from an upper surface of the suction panel and configured to receive the ion generator therein. The ion generator is accommodated inside the installation groove and configured to provide ions toward the upper surface of the suction panel in an upward direction that defines a preset angle with respect to the suction panel.

An air conditioner includes a suction panel including a suction grille that defines a suction port configured to receive air, an heat exchanger and a fan that are positioned within the case, and an ion generator disposed in the suction panel and configured to generate ions in the air received through the suction port. The suction panel defines an installation groove recessed from an upper surface of the suction panel and configured to receive the ion generator therein. The ion generator is accommodated inside the installation groove and configured to provide ions toward the upper surface of the suction panel in an upward direction that defines a preset angle with respect to the suction panel.

The window air conditioning and heating unit controls the environmental conditions within a room of a building. The window air conditioning and heating unit mounts in a window of the room. The window air conditioning and heating unit measures and monitors the temperature of and the humidity in the air in the room. The window air conditioning and heating unit comprises an environmental control structure, a control circuit, and a housing. The environmental control structure provides the heat and mass transfer capabilities required to control the temperature and humidity within the room. The control circuit controls and powers the operation of the environmental control structure. The environmental control structure and the control circuit are contained in the housing.

The window air conditioning and heating unit controls the environmental conditions within a room of a building. The window air conditioning and heating unit mounts in a window of the room. The window air conditioning and heating unit measures and monitors the temperature of and the humidity in the air in the room. The window air conditioning and heating unit comprises an environmental control structure, a control circuit, and a housing. The environmental control structure provides the heat and mass transfer capabilities required to control the temperature and humidity within the room. The control circuit controls and powers the operation of the environmental control structure. The environmental control structure and the control circuit are contained in the housing.

An air conditioner installable on a window frame and having a ventilation function. The air conditioner comprises a cabinet comprising a first inlet hole, a second inlet hole and a third inlet hole, a first heat exchanger provided inside the cabinet to allow indoor air, which is introduced through the first inlet hole, to exchange heat, a second heat exchanger provided inside the cabinet to allow outdoor air, which is introduced through the second inlet hole, to exchange heat, and a third heat exchanger provided inside the cabinet to be located between the first heat exchanger and the second heat exchanger in a height direction of the cabinet, and provided to allow outdoor air, which is introduced through the third inlet hole, and condensed water, which is generated in the first heat exchanger, to exchange heat with each other.

An air conditioner installable on a window frame and having a ventilation function. The air conditioner comprises a cabinet comprising a first inlet hole, a second inlet hole and a third inlet hole, a first heat exchanger provided inside the cabinet to allow indoor air, which is introduced through the first inlet hole, to exchange heat, a second heat exchanger provided inside the cabinet to allow outdoor air, which is introduced through the second inlet hole, to exchange heat, and a third heat exchanger provided inside the cabinet to be located between the first heat exchanger and the second heat exchanger in a height direction of the cabinet, and provided to allow outdoor air, which is introduced through the third inlet hole, and condensed water, which is generated in the first heat exchanger, to exchange heat with each other.