An air conditioner unit may include a housing, an outdoor heat exchanger assembly, an indoor heat exchanger assembly, a compressor, and a sterilization light assembly. The housing may define an indoor portion and an outdoor portion. The housing may further define an exhaust outlet downstream from the indoor portion to exhaust air therefrom. The sterilization light assembly may be disposed within the housing to transmit an ultraviolet light emission thereto. The sterilization light assembly may include a support board, an ultraviolet C (UVC) light source, and a lens casing. The UVC light source may be mounted to the support board and configured to emit radiation between 200 to 280 nanometers. The lens casing may be disposed over the support board and seal the UVC light source to prevent moisture from contacting the UVC light source.

An air conditioner unit may include a housing, an outdoor heat exchanger assembly, an indoor heat exchanger assembly, a compressor, and a sterilization light assembly. The housing may define an indoor portion and an outdoor portion. The housing may define an exhaust outlet downstream from the indoor portion to exhaust air therefrom. The outdoor heat exchanger assembly may be disposed in the outdoor portion and comprising an outdoor heat exchanger. The indoor heat exchanger assembly may be disposed in the indoor portion and comprising an indoor heat exchanger and an indoor fan. The compressor may be in fluid communication with the outdoor heat exchanger and the indoor heat exchanger to circulate a refrigerant between the outdoor heat exchanger and the indoor heat exchanger. The sterilization light assembly may be disposed within the indoor portion and directed at the indoor heat exchanger to transmit an ultraviolet light emission thereto.

An air conditioner unit may include a housing, an outdoor heat exchanger assembly, an indoor heat exchanger assembly, a compressor, and a sterilization light assembly. The housing may define an indoor portion and an outdoor portion. The housing may define an exhaust outlet downstream from the indoor portion to exhaust air therefrom. The outdoor heat exchanger assembly may be disposed in the outdoor portion and comprising an outdoor heat exchanger. The indoor heat exchanger assembly may be disposed in the indoor portion and comprising an indoor heat exchanger and an indoor fan. The compressor may be in fluid communication with the outdoor heat exchanger and the indoor heat exchanger to circulate a refrigerant between the outdoor heat exchanger and the indoor heat exchanger. The sterilization light assembly may be disposed within the indoor portion and directed at the indoor heat exchanger to transmit an ultraviolet light emission thereto.

A method of installing an air conditioning unit in an opening. The method includes securing a bracket to a sill of the opening between a first and second environment where the bracket has a pivot arm disposed and extending within the first environment. The method also includes positioning a first unit of the air conditioning unit on top of the bracket; moving the first unit on top of the bracket onto the pivot arm; and rotating the pivot arm and first unit downward so that the first unit is disposed in the first environment and extending downward below the sill of the opening.

Various disclosed embodiments include illustrative heating, ventilation, and air conditioning (HVAC) devices, HVAC systems, vehicles, and methods. An illustrative HVAC system includes a case configured to at least partially recirculate air within the case, a blower disposed in the case and configured to cause air to flow, a first heat exchanger disposed in the case and configured to heat the air, and a second heat exchanger disposed in the case and configured to exchange heat with the air.

Various disclosed embodiments include illustrative heating, ventilation, and air conditioning (HVAC) devices, HVAC systems, vehicles, and methods. An illustrative HVAC system includes a case configured to at least partially recirculate air within the case, a blower disposed in the case and configured to cause air to flow, a first heat exchanger disposed in the case and configured to heat the air, and a second heat exchanger disposed in the case and configured to exchange heat with the air.

An air conditioner unit may include a housing, an outdoor heat exchanger assembly, an indoor heat exchanger assembly, a compressor, and a sterilization light assembly. The housing may define an indoor portion and outdoor portion. The housing may further define an exhaust outlet downstream from the indoor portion to exhaust air. The outdoor heat exchanger assembly may be disposed in the outdoor portion and include an outdoor heat exchanger. The indoor heat exchanger assembly may be disposed in the indoor portion and include an indoor heat exchanger and an indoor fan. The compressor may be in fluid communication with the outdoor heat exchanger and the indoor heat exchanger to circulate a refrigerant between the outdoor heat exchanger and the indoor heat exchanger. The sterilization light assembly may be disposed within the indoor portion below the indoor fan and directed forward to transmit an ultraviolet light emission within the indoor portion.

An air conditioner unit may include a housing, an outdoor heat exchanger assembly, an indoor heat exchanger assembly, a compressor, and a sterilization light assembly. The housing may define an indoor portion and outdoor portion. The housing may further define an exhaust outlet downstream from the indoor portion to exhaust air. The outdoor heat exchanger assembly may be disposed in the outdoor portion and include an outdoor heat exchanger. The indoor heat exchanger assembly may be disposed in the indoor portion and include an indoor heat exchanger and an indoor fan. The compressor may be in fluid communication with the outdoor heat exchanger and the indoor heat exchanger to circulate a refrigerant between the outdoor heat exchanger and the indoor heat exchanger. The sterilization light assembly may be disposed within the indoor portion below the indoor fan and directed forward to transmit an ultraviolet light emission within the indoor portion.

A single-package air conditioner unit may include, a housing, an outdoor heat exchanger assembly, an indoor heat exchanger assembly, a compressor, an electronics casing, and an electronics board. The housing may define an outdoor portion and an indoor portion. The outdoor heat exchanger assembly may be disposed in the outdoor portion and include an outdoor heat exchanger and an outdoor fan. The indoor heat exchanger assembly may be disposed in the indoor portion and include an indoor heat exchanger and an indoor fan. The compressor may be in fluid communication with the outdoor heat exchanger and the indoor heat exchanger to circulate a refrigerant between the outdoor heat exchanger and the indoor heat exchanger. The electronics casing may be disposed in the outdoor portion apart from the outdoor heat exchanger. The electronics casing may define a board chamber in which the electronics board may be mounted.

A single-package air conditioner unit may include, a housing, an outdoor heat exchanger assembly, an indoor heat exchanger assembly, a compressor, an electronics casing, and an electronics board. The housing may define an outdoor portion and an indoor portion. The outdoor heat exchanger assembly may be disposed in the outdoor portion and include an outdoor heat exchanger and an outdoor fan. The indoor heat exchanger assembly may be disposed in the indoor portion and include an indoor heat exchanger and an indoor fan. The compressor may be in fluid communication with the outdoor heat exchanger and the indoor heat exchanger to circulate a refrigerant between the outdoor heat exchanger and the indoor heat exchanger. The electronics casing may be disposed in the outdoor portion apart from the outdoor heat exchanger. The electronics casing may define a board chamber in which the electronics board may be mounted.