Air-conditioning system

Abstract

An air-conditioning system according to an embodiment of the present disclosure is an air-conditioning system that conditions air of a room partitioned into a plurality of rectangular air-conditioning target areas in a plan view, and includes a use-side unit that is installed above a ceiling of one of the air-conditioning target areas and is configured to perform air-conditioning operation to condition air of the one air-conditioning target area. Where the air-conditioning target area where the use-side unit is installed is an installation area, the use-side unit includes a main body unit that cools and heats air of the installation area sucked from an air inlet provided on a bottom surface, and a blowout unit that is connected to the main body unit by a duct, and blows out air supplied from the main body unit, from an air outlet provided on a bottom surface, the blowout unit includes a vertical wind direction louver that adjusts a direction of the air blown out from the air outlet in a vertical direction, and the vertical wind direction louver is inclined against a vertical line and guides the air toward a center of the installation area.

1 . An air-conditioning system that conditions air of a room partitioned into a plurality of rectangular air-conditioning target areas in a plan view, the air-conditioning system comprising a use-side unit that is installed above a ceiling of one of the air-conditioning target areas and is configured to perform air-conditioning operation to condition air of the one air-conditioning target area, wherein
 where an installation area is the one air-conditioning target area in which the use-side unit is installed,   the use-side unit includes a main body unit that is installed above the ceiling of the installation area, and cools and heats air of the installation area sucked from an air inlet provided on a bottom surface, and a blowout unit that is connected to the main body unit by a duct, is installed above the ceiling of the installation area, blows out air supplied from the main body unit, from an air outlet provided on a bottom surface of the use-side unit and disposed on an outer peripheral side in the installation area in a plan view,   the blowout unit includes a vertical wind direction louver that adjusts a direction of the air blown out from the air outlet in a vertical direction, and   the vertical wind direction louver is inclined against a vertical line and guides the air toward a center of the installation area.   
     
     
         2 . The air-conditioning system of  claim 1 , wherein the blowout unit is installed at a position where a distance between a center of the air inlet and a center of the air outlet is 3.6 m or less in a plan view. 
     
     
         3 . The air-conditioning system of  claim 1 , wherein
 the vertical wind direction louver is of a movable type changeable in inclination by power during operation of the use-side unit,   the use-side unit includes a feeder line supplying the power to the vertical wind direction louver, and   the feeder line is at least partially disposed in contact with the duct.   
     
     
         4 . The air-conditioning system of  claim 1 , wherein
 the vertical wind direction louver is of a movable type changeable in inclination by power during operation of the use-side unit,   the use-side unit is configured to perform cooling operation and heating operation as the air-conditioning operation, and   inclination of the vertical wind direction louver to the vertical line during the cooling operation is larger than inclination of the vertical wind direction louver to the vertical line during the heating operation.   
     
     
         5 . The air-conditioning system of  claim 1 , wherein
 the use-side unit is configured to perform cooling operation as the air-conditioning operation, and   in a side view, the air blown out from the air outlet during the cooling operation reaches a vertical line passing through the center of the installation area before reaching a floor surface of the installation area.   
     
     
         6 . The air-conditioning system of  claim 1 , wherein
 the use-side unit is configured to perform heating operation as the air-conditioning operation, and   in a side view, the air blown out from the air outlet during the heating operation reaches a floor surface of the installation area before reaching a vertical line passing through the center of the installation area.   
     
     
         7 . The air-conditioning system of  claim 1 , further comprising a human detection sensor configured to detect presence of a person in the installation area, wherein
 the use-side unit includes a fan that feeds the air of the installation area sucked from the air inlet, to the blowout unit,   the use-side unit performs air-sending operation when no person is present in the installation area, and   a rotation speed of the fan when the use-side unit performs the air-sending operation is lower than a rotation speed of the fan when the use-side unit performs the air-conditioning operation.   
     
     
         8 . The air-conditioning system of  claim 1 , wherein
 the use-side unit includes the blowout unit at each of two positions,   each of the two blowout units includes a lateral wind direction louver that adjusts the direction of the air blown out from the air outlet in a lateral direction,   where one of the two blowout units is a first blowout unit and an other of the two blowout units is a second blowout unit,   the first blowout unit and the second blowout unit face each other with the center of the installation area in between in a plan view,   where, in a plan view, a virtual straight line connecting a center of the air outlet of the first blowout unit and the center of the installation area is a first virtual straight line, a virtual straight line connecting a center of the air outlet of the second blowout unit and the center of the installation area is a second virtual straight line, one of directions perpendicular to the first virtual straight line is a first direction, and an other of the directions perpendicular to the first virtual straight line is a second direction,   the lateral wind direction louver of the first blowout unit is inclined to cause the air blown out from the air outlet to be inclined in the first direction to the first virtual straight line, and   the lateral wind direction louver of the second blowout unit is inclined to cause the air blown out from the air outlet to be inclined in the second direction to the second virtual straight line.   
     
     
         9 . The air-conditioning system of  claim 1 , wherein
 the use-side unit includes the blowout unit at each of a plurality of positions,   at least one side of the installation area faces a side wall of the room in a plan view, and   the plurality of blowout units are provided only along a side not facing the side wall of the room in a plan view.   
     
     
         10 . The air-conditioning system of  claim 1 , wherein
 the use-side unit includes the blowout unit at each of two positions,   each of the two blowout units includes a lateral wind direction louver that adjusts the direction of the air blown out from the air outlet in a lateral direction,   where one of the two blowout units is a third blowout unit and an other of the two blowout units is a fourth blowout unit,   the third blowout unit and the fourth blowout unit face each other with the center of the installation area in between in a plan view,   where, in a plan view, a virtual straight line connecting a center of the air outlet of the third blowout unit and the center of the installation area is a third virtual straight line, a virtual straight line connecting a center of the air outlet of the fourth blowout unit and the center of the installation area is a fourth virtual straight line, one of directions perpendicular to the third virtual straight line is a third direction, and an other of the directions perpendicular to the third virtual straight line is a fourth direction,   the air-conditioning target area adjacent to the installation area is present in the fourth direction of the installation area in a plan view,   the lateral wind direction louver of the third blowout unit is inclined to cause the air blown out from the air outlet to be inclined in the third direction to the third virtual straight line, and   the lateral wind direction louver of the fourth blowout unit is inclined to cause the air blown out from the air outlet to be inclined in the third direction to the fourth virtual straight line.   
     
     
         11 . The air-conditioning system of  claim 1 , wherein
 the use-side unit is provided at each of two positions, and   where one of the two use-side units is a first use-side unit, an other of the two use-side units is a second use-side unit, the air-conditioning target area where the first use-side unit is installed is a first installation area, and the air-conditioning target area where the second use-side unit is installed is a second installation area,   the first installation area and the second installation area are adjacent to each other.   
     
     
         12 . The air-conditioning system of  claim 11 , wherein set temperature of the first use-side unit and set temperature of the second use-side unit are different by two degrees C. or more. 
     
     
         13 . The air-conditioning system of  claim 11 , further comprising:
 a first ventilator that includes a first air supply port communicating with the first installation area; and   a second ventilator that includes a second air supply port communicating with the second installation area, wherein   each of the first use-side unit and the second use-side unit includes a human detection sensor that detects whether a person is present, and   where a person is present in the first installation area and no person is present in the second installation area, a flow rate of outside air supplied from the second air supply port to the second installation area is larger than a flow rate of outside air supplied from the first air supply port to the first installation area.   
     
     
         14 . The air-conditioning system of  claim 13 , wherein
 the first air supply port communicates with the first installation area at a position more away from the second installation area than a center of the first installation area is from the second installation area in a plan view, and   the second air supply port communicates with the second installation area at a position more away from the first installation area than a center of the second installation area is from the first installation area in a plan view.