The invention relates an air conditioner (10,40) comprising a casing (11, 41) for receiving an air conditioning unit, an air inlet (13) in the casing (11, 14) for introducing air to be conditioned to the air conditioning unit, an air outlet (14-17, 45) in the casing (11, 41) for discharging conditioned air from the air-conditioning unit to the vicinity of the air conditioner (10, 40), and a windblocker (A-E) arranged at a distance in front of the outlet downstream of the conditioned air flow to deflect this flow transversely to its discharge direction, characterized in that the windblocker (A-E) is adapted for positive, tool-free connection to the casing (11, 41) of the air conditioner (A-E) without need for separate fixing means.

A ceiling-embedded air conditioner includes: a box-shaped housing that is embedded in a ceiling of an air-conditioned room; a square decorative panel that is attached to a lower surface of the housing and covers the ceiling; main body outlets that are provided along respective four sides of a bottom surface of the housing and blow heat-exchanged air; outlets that are provided in the decorative panel in correspondence with the main body outlets; corner blowoff units that are provided in the decorative panel in correspondence with coupling portions for coupling the outlets; a blowoff path that is circumferentially provided in the decorative panel in correspondence with the outlets and the corner blowoff units; and wind direction plates that are rotatably provided along the respective sides of the decorative panel so as to cover or open the blowoff path and are longer than a long side of the outlets.

Disclosed herein is a diffuser module that can be used to air condition a space. The space may comprise the interior space(s) of buildings such as hospitals, enclosed shopping malls, warehouses, factories, etc. The module may comprise a body defining an interior chamber, the body having an upper end able to be connected to the air conditioning unit (AHU) and an opposing lower end. The module may also comprise a first channel disposed in the chamber for receiving a first air stream from the unit. The module may also comprise at least one diffuser connected to the lower end of the body, the at least one diffuser able to receive the first air stream from the first channel and discharge it to the space.

An air intake and exhaust assembly includes an air exhaust pipe, a connection pipe, and an air intake pipe arranged adjacent to the air exhaust pipe. The air exhaust pipe includes an air exhaust channel formed in the air exhaust pipe. One end of the connection pipe is connected to a lower end of the air exhaust pipe and another end of the connection pipe is configured to be connected to an air exhaust volute of a packaged air conditioner, such that the air exhaust channel is communicated with an air outlet of the air exhaust volute. An air intake channel is formed between an inner wall of the air intake pipe and an outer wall of the air exhaust pipe, and the air intake channel is communicated with an air inlet of the packaged air conditioner.

An air-conditioning apparatus performs an air conditioning action by causing heat exchange to be performed between refrigerant cycling through a refrigerant circuit and indoor and outdoor air, the air-conditioning apparatus including: a measuring unit configured to measure a concentration of the refrigerant leaked into air; a control determination unit configured to determine leakage of the refrigerant in a case where a value indicating the concentration is equal to or more than a first threshold; and a storage unit configured to cumulate and store at least one of a time period elapsed during a determination of the leakage of the refrigerant and a number of times of the determination of the leakage of the refrigerant, wherein the control determination unit prohibits the air conditioning action in at least one case out of a case where the time period cumulated is equal to or more than a predetermined time period, a case where the number of times cumulated is equal to or more than a predetermined number, and a case where the value indicating the concentration is equal to or more than a second threshold, being a value greater than the first threshold.

An insert for an air intake of a suction duct, the insert including an inner portion configured to extend within the suction duct, a mating portion configured for sealingly engaging the air intake, and an outer portion configured for extending outside of the suction duct. The inner portion includes a conduit having a central axis extending along an inlet direction at the inlet end and along an outlet direction at the outlet end, the inlet and outlet directions being non-parallel. The outlet end has a smaller cross-sectional area than that of the suction duct. The insert includes an inlet in fluid communication with the inlet end of the conduit. The outer portion includes a curved lip surrounding at least part of an inlet opening of the inlet, the lip configured to direct a flow into the inlet opening and toward the inlet end of the conduit.

The present invention relates to an air conditioner, the air conditioner according to the embodiment of the present invention may include; a case forming the exterior; a panel having an air inlet and disposed at one side of the case; an electric dust collector for collecting foreign substances introduced through the air inlet; and a high voltage applying device electrically connected to the electric dust collector, wherein the electric dust collector includes: a discharge electrode extending toward the air inlet and charging particles contained in air introduced through the air inlet; and an electrode holder supporting the discharge electrode so that an angle formed between an extension direction of the discharge electrode and a flow direction of air introduced through the air inlet can be changed. Accordingly, there is an advantage in that the distribution of the ion field can be adjusted by adjusting the angle between the discharge electrode and the flow direction.

An air terminal device for a ventilation system includes a pressure box, with an inlet admitting supply air into the pressure box and outlet openings for admitting supply air out. The air terminal device further includes a cover plate to control and change the open area of the outlet openings. The outlet openings are in a wall of the pressure box forming an outlet surface of the pressure box. The cover plates are arranged to make contact with and slide relative the outlet surface while changing the open area of the outlet openings. The cover plate is located on the high pressure side of the outlet surface. The cover plate cooperates with the outlet surface such that there is at least one outlet opening or suction opening being partly or fully covered by the cover plate also when the air terminal device is set to maximum flow.

According to the present disclosure, it is determined whether or not the room is heated according to a temperature difference between a room temperature Tp and a set temperature Ts, and even when there is little or no heating load due to the temperature difference between the room temperature Tp and the set temperature Ts, the floor heating is performed by determining a temperature difference between the room temperature Tp and a floor temperature Tb.

An air supply device with an annular air outlet and a design method thereof are provided. The device includes an air delivery section arranged in a horizontal plane and communicated with a plurality of air-out sections, wherein an axis of each of the plurality of air-out sections is in a vertical direction; the air delivery section and the plurality of air-out sections are respectively provided with air return ducts communicated with each other, the air return ducts each have a fresh air duct provided therein; an axis of the fresh air duct is parallel to an axis of corresponding air return duct of the air return ducts, and the fresh air duct and the corresponding air return duct are equal in length, the plurality of air-out sections are arranged above office cubicles in a room.