Daikin Industries, Ltd.

Norihiro Nabeshima

Makoto Ikeda

Atsushi Matsubara

Akio Tasaka

Yuusuke Shiono

An air conditioning system suppresses energy consumption by efficient shared use of air in a common space that is not subjected to air conditioning in an indoor area, among a plurality of air conditioners for the purpose of heat exchange. A plurality of air conditioners each include: a usage-side heat exchanger configured to carry out heat exchange with air in an air-conditioning target space; a heat source-side heat exchanger configured to carry out heat transfer to and from the usage-side heat exchanger; and a heat source-side fan configured to feed air from a common space to the heat source-side heat exchanger and to blow the air into the common space. The heat source-side heat exchangers of the air conditioners are disposed in the common space. A first ventilation fan whose airflow volume is changeable is disposed near an exhaust port through which air is discharged from the common space toward an outdoor area. A controller changes the airflow volume of the ventilation fan, based on information on an air temperature of the common space.

Air conditioning system

In an air conditioning system which conditions air in one air-conditioning-target space with a plurality of air conditioners each including a compressor, the energy consumption efficiency as a whole is improved. The air conditioners (to) each include a service-side heat exchanger exchanging heat between air of a room which is the air-conditioning-target space and a refrigerant, a heat-source-side heat exchanger exchanging heat between air of a common space and the refrigerant, and a compressor (to) compressing the refrigerant circulating through the service-side heat exchanger and the heat-source-side heat exchanger. When an air conditioning capacity falls within a predetermined range for at least two of the plurality of air conditioners (to), part of the air conditioners whose compressors are in operation has its compressor stopped.

An air conditioning system includes air conditioners having at least one installed function of multiple functions, a mobile terminal carried by a user, and information mediation devices configured to carry out exchange of information between the air conditioners and the mobile terminal using a public network. The mobile terminal has an air conditioning management program configured to manage the air conditioners. The air conditioners store installed function information relating to the functions installed in the air conditioners. The air conditioning management program of the mobile terminal reads out the installed function information via the information intermediation devices, and generates, in accordance with the installed function information, an air conditioner management screen image displayed on a display of the mobile terminal.

Air conditioning system and air conditioning management program

An air conditioning system includes air conditioners having a room temperature sensor to detect temperature of rooms, a mobile terminal carried by a user, and information mediation devices configured to cause exchange of information between the air conditioners and the mobile terminal using a public circuit. An air-conditioning management program installed in the mobile terminal is capable of causing an image that includes information related to a registered plurality of the air conditioners to be displayed on a display screen of the mobile terminal. When the rooms have been determined to be in a predetermined high-temperature state based on detection results of the room temperature sensor of the registered air conditioners, the information mediation devices provide a push-notification about the high-temperature information to the mobile terminal.

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Osaka, Japan

Norihiro Nabeshima