This disclosure relates generally to cabinets for commercial heating, ventilation, air conditioning and refrigeration (HVACR) systems. More particularly, this disclosure relates to HVACR cabinets including one or more plenum fans located in a fan box. The fan box may be located between an indoor coil and a heat exchanger compartment of an HVACR unit. The fan box may be configured to direct air into a heat exchanger compartment inlet. The fan box may be parallel with or angled with respect to the indoor coil.

An air duct member, a ventilation and heat exchange component, and an air conditioner are provided. The air duct member includes an air duct portion and a water receiving portion. The air duct portion includes an air duct structure. The air duct structure has a first air duct wall and a second air duct wall, and a cross-flow air duct is defined between the first air duct wall and the second air duct wall. The water receiving portion is disposed at a lower end of the air duct portion and defines a water receiving recess. The water receiving recess is located at a side of the second air duct wall away from the first air duct wall and receives condensed water flowing down along the second air duct wall.

A dehumidifier drainage system includes a primary drain pan and a secondary drain pan. The primary drain pan is disposed at least partially below an evaporator. The primary drain pan includes one or more raised ribs that are configured to at least partially block air flowing across the primary drain pan as the air flows into the evaporator. The secondary drain pan is disposed at least partially between the evaporator and the primary drain pan. The secondary drain pan includes one or more downspouts. Each downspout is configured to funnel water condensed from the evaporator into an area of the primary drain pan that is at least partially surrounded by one of the raised ribs.

A dehumidifier drainage system includes a primary drain pan and a secondary drain pan. The primary drain pan is disposed at least partially below an evaporator. The primary drain pan includes one or more raised ribs that are configured to at least partially block air flowing across the primary drain pan as the air flows into the evaporator. The secondary drain pan is disposed at least partially between the evaporator and the primary drain pan. The secondary drain pan includes one or more downspouts. Each downspout is configured to funnel water condensed from the evaporator into an area of the primary drain pan that is at least partially surrounded by one of the raised ribs.

The present invention relates to an air conditioning system and, more particularly, to an air conditioning system comprising, within a single air conditioning case: a cool air passage in which an evaporator is installed; a warm air passage in which a condenser is installed; an installation space portion in which air conditioner parts such as a compressor are installed; and an air discharge passage for discharging, to the outside, air unnecessary for cooling and heating, thereby enabling attachment and detachment inside a vehicle, and enabling use as a portable air conditioner as well as a vehicle air conditioner. In addition, as the system is capable of cooling and heating, a separate heater core or PTC heater for heating is not required, thereby the structure is simple, and the system is capable of controlling cooling and heating modes through a single operation door, thereby allowing the system to be miniaturized.

The portable air conditioner system is an electrically operated and portable device that is used for cooling a small, but not necessarily enclosed, space. The portable air conditioner system is adapted to cool one or more objects. The portable air conditioner system is further adapted to be attached to an object selected from the one or more objects. In multiple potential embodiments the portable air conditioner system connects to a circulatory network that provides for more efficiently targeted cooling. The portable air conditioner system comprises a cooling unit, a housing, a control system, and an optional circulatory network. The cooling unit and the control are contained within the housing.

A variable refrigerant package air conditioner is shown that is easy to install in new construction with a unique base that causes collected mixture that overflows to drain outside the building. A control system is shown that has motors and compressor that are pulse width modulated so the air conditioner is infinitely variable while maintaining the highest possible power factor. Dehumidification of outside air occurs as it is mixed with inside air. By gradually approaching a temperature set point and even reheating after dehumidification, moisture is removed from the room. A snorkel that delivers fresh air to be mixed with inside entering air in front of the evaporator for a maximum dehumidification is also shown.

An air conditioner unit is provided that includes features for selectively cooling an indoor fan motor of the unit based at least in part on the outdoor temperature. Methods for selectively cooling indoor fan motors of air conditioner units are also provided.

A humidifying device comprising an air duct penetrating axially through the humidifying device, a water tank (201b) for storing water, and a filter element (204b) disposed in the water tank. The water tank (201b) surrounds the air duct. Further disclosed is an air handling system.

An air cleaner is provided that may include a first air cleaning module having a first fan that generates air flow from a first suction inlet toward a first discharge outlet; a second air cleaning module having a second fan that generates air flow from a second suction inlet toward a second discharge outlet; a dividing plate provided between the first air cleaning module and the second air cleaning module; and a display provided at inside of the dividing plate and in which a light source is provided.