Abstract: An air conditioning system configured to supply a plurality of places in a building with conditioned air with use of ducts inhibits malfunction of the air conditioning system due to airflow volume through a utilization heat exchanger. A heat exchanger unit includes a utilization heat exchanger. The heat exchanger unit is connected with a plurality of ducts. A plurality of fan units sucks conditioned air from the heat exchanger unit through the plurality of ducts and supplies a plurality of blow-out ports with the conditioned air. The fan units include fan motors as a plurality of actuators configured to individually change supply air volume of the conditioned air. A main controller controls the plurality of fan motors such that airflow volume through the utilization heat exchanger satisfies a predetermined condition.

Abstract: An air conditioning system configured to supply a plurality of places in a building with conditioned air with use of ducts inhibits malfunction of the air conditioning system due to airflow volume through a utilization heat exchanger. A heat exchanger unit includes a utilization heat exchanger. The heat exchanger unit is connected with a plurality of ducts. A plurality of fan units sucks conditioned air from the heat exchanger unit through the plurality of ducts and supplies a plurality of blow-out ports with the conditioned air. The fan units include fan motors as a plurality of actuators configured to individually change supply air volume of the conditioned air. A main controller controls the plurality of fan motors such that airflow volume through the utilization heat exchanger satisfies a predetermined condition.

Abstract: Provided is an air conditioning system that uses ducts to supply conditioned air to a plurality of places inside a building, and is configured to counteract air backflow that occurs in ducts. A heat exchanger unit (10) includes a use side heat exchanger (11). A plurality of ducts (20) are connected to the heat exchanger unit (10). A plurality of fan units (30) suction conditioned air from the heat exchanger unit (10), and supply the conditioned air to a plurality of air outlets (71) through the plurality of ducts (20). A differential pressure sensor (121) acting as a detection device detects air backflow proceeding from at least one air outlet (71) among the plurality of air outlets (71) toward the heat exchanger unit (10) in a plurality of distribution flow paths including the plurality of ducts (20), the plurality of fan units (30), and the air outlets (71) of a plurality of outlet units (70).

Abstract: A body of a casing is provided with a predetermined component. An imaging device includes an attachment portion detachably attached to the component so as to be at a position at which the imaging device can image the at least one predetermined object to be imaged.

Abstract: An air treatment device includes a casing, a drain pan provided in the casing, a camera configured to capture an inner surface of the drain pan to obtain image data, and a lighting device configured to apply, to a photographing target of the camera, visible light having a maximum peak wavelength in a wavelength band from 400 nm to 500 nm.

Abstract: The air processing device is provided with a processing unit that determines the state of a predetermined part(s) in a casing on the basis of the change in a plurality of image data acquired by an imaging unit.

Abstract: An imaging target includes a light emitter configured to emit visible light from a surface of the imaging target, and an imaging device captures an image of at least the light emitter of the imaging target and acquires image data including the light emitter.

Abstract: The present disclosure controls the supply of conditioned air to moderate the energy consumption by the heat source side in the supply of conditioned air using ducts in an air conditioning system. A heat exchanger unit includes a use side heat exchanger. A plurality of ducts distribute conditioned air that has passed through the use side heat exchanger of the heat exchanger unit. A plurality of fan units suction the conditioned air from the heat exchanger unit through the plurality of ducts, and supply the conditioned air to an air conditioned space. Each fan unit includes a fan motor that acts as an actuator configured to change an individual air supply amount of the conditioned air. A controller controls the plurality of fan motors to control the respective air supply amounts of the plurality of fan units.

Abstract: A control load is reduced in a fan unit capable of controlling air flow volume. The rotation speed of a fan can be changed. An air flow volume detector detects air flow volume of the fan or equivalent air flow volume that is a physical quantity corresponding to the air flow volume of the fan. A unit casing houses, therein, the fan and the air flow volume detector. A fan controller, which is a controller, controls the rotation speed of the fan. The fan controller controls the rotation speed of the fan on the basis of a command value of the air flow volume of the fan given from outside the unit and a detected value of the air flow volume or the equivalent air flow volume detected by the air flow volume detector.

Abstract: An air conditioning system configured to supply a plurality of places in a building with conditioned air with use of ducts inhibits malfunction of the air conditioning system due to airflow volume through a utilization heat exchanger. A heat exchanger unit includes a utilization heat exchanger. The heat exchanger unit is connected with a plurality of ducts. A plurality of fan units sucks conditioned air from the heat exchanger unit through the plurality of ducts and supplies a plurality of blow-out ports with the conditioned air. The fan units include fan motors as a plurality of actuators configured to individually change supply air volume of the conditioned air. A main controller controls the plurality of fan motors such that airflow volume through the utilization heat exchanger satisfies a predetermined condition.

Abstract: An air treatment device includes a casing, a drain pan provided in the casing, a camera configured to capture an inner surface of the drain pan to obtain image data, and a lighting device configured to apply, to a photographing target of the camera, visible light having a maximum peak wavelength in a wavelength band from 400 nm to 500 nm.

Abstract: Provided is an air conditioning system that uses ducts to supply conditioned air to a plurality of places inside a building, and is configured to counteract air backflow that occurs in ducts. A heat exchanger unit includes a use side heat exchanger. A plurality of ducts are connected to the heat exchanger unit. A plurality of fan units suction conditioned air from the heat exchanger unit, and supply the conditioned air to a plurality of air outlets through the plurality of ducts. A differential pressure sensor acting as a detector detects air backflow proceeding from at least one air outlet among the plurality of air outlets toward the heat exchanger unit in a plurality of distribution flow paths including the plurality of ducts, the plurality of fan units, and the air outlets of a plurality of outlet units.

Abstract: An air treatment system controls airflow volume in accordance with momentarily varying airflow volume to be demanded. A supply fan unit is disposed separately from an air treatment unit, and sends outdoor air from an outdoor space to the air treatment unit and sends outdoor air treated by the air treatment unit to an indoor space. An exhaust fan unit is disposed separately from the air treatment unit, and sends indoor air from the indoor space to the air treatment unit and sends indoor air treated by the air treatment unit to the outdoor space. A controller controls a rotation speed of a first fan in accordance with a first detection value of a first airflow volume detection unit, and controls a rotation speed of a second fan in accordance with a second detection value of a second airflow volume detection unit.

Abstract: A contamination information estimation system includes a camera that captures an image of a drain pan in a casing of an air conditioner, and an estimator that estimates contamination information related to contamination on the drain pan on the basis of image data captured by the camera and operation data of the air conditioner and/or environment data related to an environment in which the air conditioner is provided.

Abstract: An imaging target includes a light emitter configured to emit visible light from a surface of the imaging target, and an imaging device captures an image of at least the light emitter of the imaging target and acquires image data including the light emitter.

Abstract: A body of a casing is provided with a predetermined component. An imaging device includes an attachment portion detachably attached to the component so as to be at a position at which the imaging device can image the at least one predetermined object to be imaged.

Abstract: An indoor unit includes: a blow-out port through which air is blown into a space to be air-conditioned; a refrigerant flow path through which flammable refrigerant gas flows; and a refrigerant detection sensor that detects the flammable refrigerant gas that leaks out of the refrigerant flow path. The refrigerant detection sensor faces the space. The refrigerant detection sensor includes a casing. The casing includes a gas intake port that takes in the flammable refrigerant gas. An outside-air-flow-area part of the refrigerant detection sensor is disposed outside of an air flow area through which the air blown through the blow-out port passes. The gas intake port is disposed on the outside-air-flow-area part.

Abstract: A refrigeration apparatus includes a refrigerant circuit including a utilization unit. The utilization unit includes: a heat exchanger; first and second refrigerant pipes connected to the heat exchanger; and first and second shutoff valves each of whose opening degrees are adjustable and which are respectively provided at the first refrigerant pipe and the second refrigerant pipe. The refrigeration apparatus includes: a refrigerant leakage detector; a refrigerant pressure acquiring part; and a controller configured to adjust the opening degrees of the first shutoff valve and the second shutoff valve. In an alert state where the first shutoff valve and the second shutoff valve are both closed and the refrigerant leakage detector detects the leakage, the controller adjusts the opening degree of at least one of the first and second shutoff valves to open when the pressure of the refrigerant is greater than a predetermined threshold value.

Abstract: The air processing device is provided with a processing unit that determines the state of a predetermined part(s) in a casing on the basis of the change in a plurality of image data acquired by an imaging unit.

Abstract: An air processing device includes: a casing; a component detachably provided on a body of the casing; and an imaging device that acquires image data of at least one predetermined object to be imaged in the casing. The imaging device is supported by the component so as to be located at a position at which the imaging device can image the object to be imaged.