Patent ID: 7810342

Claim:
An air conditioning system comprising: a compressor; a first refrigerant circuit provided with a heat-source side heat exchanger, an air heat exchanger, a first four-way selector valve, and a first variable-opening expansion valve; and a second refrigerant circuit provided with a first adsorption heat exchanger, a second adsorption heat exchanger, a second four-way selector valve, and a second variable-opening expansion valve; wherein the first and second adsorption heat exchangers are provided with an adsorbent on the surface thereof and the air heat exchanger is without an adsorbent, the air conditioning system supplies the air having passed through the first or second adsorption heat exchanger to a room to cope with latent heat load in the room and supplies the air having passed through the air heat exchanger to the room to cope with sensible heat load in the room, the first and second four-way selector valves are controlled for providing a flow passage of refrigerant from the compressor to the air heat exchanger and the heat source side heat exchanger and back to the compressor via the first four-way selector valve, while providing a flow passage of refrigerant from the compressor to the first and second adsorption heat exchangers and back to the compressor via the second four-way selector valve, and the refrigerant circuit alternately creates an adsorption action of allowing moisture in the air to adsorb on the first or second adsorption heat exchanger and a regeneration action of allowing moisture to desorb from the first or second adsorption heat exchanger.