A heat exchange device and a refrigerant circulation system are disclosed. The heat exchange device includes a housing, defining a first air inlet and a first air outlet; wherein the first air inlet and the first air outlet are spaced apart along a first direction; and a first heat exchange component, arranged in the housing and comprising a plurality of heat exchange fins spaced apart along a second direction; wherein the first heat exchange component is arranged opposite to the first air inlet along a third direction; the second direction is perpendicular to the first direction, and the third direction is perpendicular to the first direction and the second direction.

A heat exchange device and a refrigerant circulation system are disclosed. The heat exchange device includes a housing, defining a first air inlet and a first air outlet; wherein the first air inlet and the first air outlet are spaced apart along a first direction; and a first heat exchange component, arranged in the housing and comprising a plurality of heat exchange fins spaced apart along a second direction; wherein the first heat exchange component is arranged opposite to the first air inlet along a third direction; the second direction is perpendicular to the first direction, and the third direction is perpendicular to the first direction and the second direction.

Methods and apparatus to reduce instabilities and/or turbulence of an airflow of a HVAC system are described. The method may include positioning an airflow moderating zone in an airflow passage to reduce instabilities and/or turbulence in the airflow. Apparatuses to create the airflow moderating zone are also provided. The apparatus may be configured to have a plurality of openings and an airflow resistance structure so as to provide airflow resistance to instabilities and/or turbulence in the airflow. The airflow moderating zone may be, for example, a sheet-like material including a plurality of openings.

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.

Provided is a wall-mounted air conditioner. The wall-mounted air conditioner comprises a casing; the casing internally comprises an air duct; the air duct comprises an air intake channel and an air output channel, which are connected to each other; the air duct is provided with an air inlet and an air outlet; at least a part of the air inlet faces the front face of the wall-mounted air conditioner; and a first included angle, which is between a central line of the air intake channel and a central line of the air output channel, is greater than or equal to 10 degrees and less than or equal to 85 degrees. Since at least a part of the air inlet of the wall-mounted air conditioner is positioned on the front face of the casing, it is not necessary for air in the environment to enter the air duct from directly above the casing.

Provided is a wall-mounted air conditioner. The wall-mounted air conditioner comprises a casing; the casing internally comprises an air duct; the air duct comprises an air intake channel and an air output channel, which are connected to each other; the air duct is provided with an air inlet and an air outlet; at least a part of the air inlet faces the front face of the wall-mounted air conditioner; and a first included angle, which is between a central line of the air intake channel and a central line of the air output channel, is greater than or equal to 10 degrees and less than or equal to 85 degrees. Since at least a part of the air inlet of the wall-mounted air conditioner is positioned on the front face of the casing, it is not necessary for air in the environment to enter the air duct from directly above the casing.

An evaporator air cooler having vertically stackable major components. A water reservoir is located within the bottom panel of the housing. A filtered media is positioned generally above the water reservoir. A fan is positioned above the water reservoir and the filter media. In this manner, the footprint of the unit is minimized. The warm air intake and the cool air discharge are located on the same side of the housing so that the unit may be placed against a wall thereby further minimizing the footprint. Automated controls are included to monitor temperature and humidity than oscillate the vertical louvers.

An evaporator air cooler having vertically stackable major components. A water reservoir is located within the bottom panel of the housing. A filtered media is positioned generally above the water reservoir. A fan is positioned above the water reservoir and the filter media. In this manner, the footprint of the unit is minimized. The warm air intake and the cool air discharge are located on the same side of the housing so that the unit may be placed against a wall thereby further minimizing the footprint. Automated controls are included to monitor temperature and humidity than oscillate the vertical louvers.

An air conditioner unit may include a housing, an outdoor heat exchanger assembly, an indoor heat exchanger assembly, a compressor, a sterilization light assembly, and a flow sensor. 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 indoor portion to transmit an ultraviolet light emission thereto. The flow sensor may be disposed within the indoor portion upstream from the exhaust outlet. The flow sensor may be operably coupled to the sterilization light assembly and configured to activation of sterilization light assembly in response to detecting a predetermined airflow within the indoor portion.