Patent ID: 7984619

Claim:
An air conditioning system comprising: an air passage having a first passage in which outdoor air flows to an inside of a room and a second passage in which room air flows to an outside of the room; a refrigerant circuit for performing a vapor compression type refrigeration cycle; and an adsorbent capable of adsorbing moisture in air and releasing moisture into the air, wherein: a heat exchanger of the refrigerant circuit is constructed of a first adsorption heat exchanger and a second adsorption heat exchanger which have the adsorbent supported on their surfaces; the refrigerant circuit is constructed so as to be able to switch between a first refrigerant flowing state, in which the first adsorption heat exchanger acts as an evaporator and in which the second adsorption heat exchanger acts as a condenser, and a second refrigerant flowing state, in which the second adsorption heat exchanger acts as an evaporator and in which the first adsorption heat exchanger acts as a condenser; the air passage is constructed so as to be able to switch between a first air flowing state, in which air flowing from the outside of the room to the inside of the room passes through the first adsorption heat exchanger and in which air flowing from the inside of the room to the outside of the room passes through the second adsorption heat exchanger, and a second air flowing state, in which the air flowing from the outside of the room to the inside of the room passes through the second adsorption heat exchanger and in which the air flowing from the inside of the room to the outside of the room passes through the first adsorption heat exchanger; and wherein the air conditioning system is configured to perform: a dehumidifying operation mode and a humidifying operation mode which are performed by switching the refrigerant flowing state and the air flowing state at specified intervals; a cooling operation mode and a heating operation mode which are performed not by switching but by fixing the refrigerant flowing state and the air flowing state; and a ventilating control operation which is performed by flowing air through the air passage in a state where the refrigerant circuit is stopped.