Abstract: A connection block facilitates connection between circular pipes with excellent fracture withstand pressure and has flow holes to allow fluid movement between pipes, a header connector connecting the connection block to a header pipe, and a condenser including of the same and a plurality of connection tubes in a plurality of rows. The connection block includes a first surface, a second surface spaced apart from the first surface, a pair of curved portions connecting ends of the first surface and ends of the second surface, and a plurality of flow holes penetrating through the curved portions, wherein the pair of curved portions have the same curvature in cross section, perpendicular to a longitudinal direction.

Abstract: An air conditioner having a water nozzle cleaning system for cleaning a water nozzle spraying water to a heat exchanger, and a braking control method used therein are provided, the air conditioner including an evaporator, an expansion valve, a compressor and an evaporative condenser through which refrigerant circulates includes a water supply line including a first water line and a second water line branching from a water supply source and a third water line at which the first water line and the second water line are joined, and configured to supply water to the evaporative condenser; and a water control module including a control unit configured to control the water supply line.

Abstract: Accordingly, the present disclosure provides an air conditioner including an evaporator, an expansion valve, a compressor, and an evaporative condenser through which refrigerant circulates, comprising: an outdoor unit in which the evaporative condenser is disposed; an indoor unit in which the evaporator is disposed; and a control unit connected to the indoor unit and the outdoor unit; wherein the evaporative condenser includes a cooing flow path through which a refrigerant passe and a condenser injection water module providing water to the cooling flow path, the outdoor unit includes first control valve for controlling water supplied to the condenser injection water module, and the control unit is connected to the first control valve and the evaporative condenser, and changes the amount of water supplied through the first control valve according to operating conditions.