A ventilation air conditioning structure including a room that has a floor portion to a fourth wall portion, a first wall portion to be a building outer wall in which an air supply opening is formed in a vicinity of a third wall portion, and an air exhaust opening that is formed in a vicinity of the fourth wall portion. The ventilation air conditioning structure also includes an air conditioner that is disposed inside the room and where at least one of air sending openings of a room interior unit is capable of sending air in a direction of a second wall portion, and an external-air conditioner that is disposed outside the room. The external-air conditioner includes heat exchangers that are incorporated in a refrigerant circuit of the air conditioner via a branched pipe that is branched from a refrigerant piping and a casing that houses the heat exchangers.

A refrigerated air conditioning unit partitioned into an inside plenum and an outside plenum and having a single refrigeration loop, a single evaporator, and a recirculated air stream, the unit also having a dynamic intelligent air management system (DIAMS) internal to the unit that is cooperatively configured and operable to continuously introduce preconditioned fresh air directly into the recirculated air stream whenever the unit is operating and to exercise control over a mixed air flow discharged from the unit into an identified space to achieve a desired air temperature and humidity within the identified space.

A refrigerated air conditioning unit partitioned into an inside plenum and an outside plenum and having a single refrigeration loop, a single evaporator, and a recirculated air stream, the unit also having a dynamic intelligent air management system (DIAMS) internal to the unit that is cooperatively configured and operable to continuously introduce preconditioned fresh air directly into the recirculated air stream whenever the unit is operating and to exercise control over a mixed air flow discharged from the unit into an identified space to achieve a desired air temperature and humidity within the identified space.

A heating, ventilation, and/or air conditioning (HVAC) unit includes a heat exchange section having a plurality of panels defining an air flow path through the heat exchange section. The air flow path includes an upstream portion and a downstream portion, the upstream portion has a first cross-sectional area, and the downstream portion has a second cross-sectional area greater than the first cross-sectional area.

A panel assembly for an air conditioner includes a face frame and an air inlet panel. The face frame includes an air inlet and an air outlet located above the air inlet. An air outlet surface of the air outlet extends obliquely backward in a direction from bottom to top. The air outlet surface is a plane on which an end surface of the air outlet is located. The air inlet panel is provided at the air inlet.

A panel assembly for an air conditioner includes a face frame and an air inlet panel. The face frame includes an air inlet and an air outlet located above the air inlet. An air outlet surface of the air outlet extends obliquely backward in a direction from bottom to top. The air outlet surface is a plane on which an end surface of the air outlet is located. The air inlet panel is provided at the air inlet.

The present invention discloses a novel packaged terminal air conditioner (PTAC) system that is compact, leakless, and power-efficient and integrates an evaporating element that heats and evaporates the meltwater collected within a drain pan disposed of in the outdoor portion. The proposed PTAC system includes an air sealing frame configurable within the sleeve of the PTAC system to completely seal off air infiltration from the sidewalls of the sleeve. The air sealing frame configurable within the sleeve further provides sufficient insulation and prevents any thermal bridge creation and also insulates the sound that usually gets transmitted from the outdoor portion to the indoor portion of the PTAC system or sound that’s experienced in the room. The proposed PTAC has a decreased protruding length of the indoor portion within the interior of the room due to the presence of the air sealing frame.

The present invention discloses a novel packaged terminal air conditioner (PTAC) system that is compact, leakless, and power-efficient and integrates an evaporating element that heats and evaporates the meltwater collected within a drain pan disposed of in the outdoor portion. The proposed PTAC system includes an air sealing frame configurable within the sleeve of the PTAC system to completely seal off air infiltration from the sidewalls of the sleeve. The air sealing frame configurable within the sleeve further provides sufficient insulation and prevents any thermal bridge creation and also insulates the sound that usually gets transmitted from the outdoor portion to the indoor portion of the PTAC system or sound that’s experienced in the room. The proposed PTAC has a decreased protruding length of the indoor portion within the interior of the room due to the presence of the air sealing frame.

An air management device may include three independently operated primary impellers 131, 131′, 131″, and drawn-in air is discharged through discharge ports 15′-1, 15′-2, 15′-3 provided in the front plate 15 of the housing 10. Louvers 141, 142, 143 installed downstream of the air flow and discharge ports 15′-1, 15′-2, 15′-3 may be independently opened or closed to provide discharge of the air to the surrounding environment. Further, at least one retractable or pop-up fan may be provided. The air management allows customization of air flow. The housing 10 of the furniture-type air management device may be installed on the floor of the livable space and may have a hexahedron shape that extends from side to side. A bottom inlet 11′ may be formed on the bottom plate 11 of the housing 10 facing the floor of the living space above a predetermined distance. The replaceable filter 300 may be installed to filter the air sucked through the bottom inlet 11′, and may be drawn in and out of the housing 10. A plurality of passage openings 302 may be formed in a filter frame 301, and filters 320, 330, and 340 are stacked over the passage openings 302.

An air management device may include three independently operated primary impellers 131, 131′, 131″, and drawn-in air is discharged through discharge ports 15′-1, 15′-2, 15′-3 provided in the front plate 15 of the housing 10. Louvers 141, 142, 143 installed downstream of the air flow and discharge ports 15′-1, 15′-2, 15′-3 may be independently opened or closed to provide discharge of the air to the surrounding environment. Further, at least one retractable or pop-up fan may be provided. The air management allows customization of air flow. The housing 10 of the furniture-type air management device may be installed on the floor of the livable space and may have a hexahedron shape that extends from side to side. A bottom inlet 11′ may be formed on the bottom plate 11 of the housing 10 facing the floor of the living space above a predetermined distance. The replaceable filter 300 may be installed to filter the air sucked through the bottom inlet 11′, and may be drawn in and out of the housing 10. A plurality of passage openings 302 may be formed in a filter frame 301, and filters 320, 330, and 340 are stacked over the passage openings 302.