An air conditioning system configured to treat a latent heat load and a sensible heat load in a room by performing a vapor compression refrigeration cycle operation, comprising: a plurality of first utilization side refrigerant circuits (10a, 10b) (110a, 10b) (210a, 210b) (310a, 2310b) (410a, 2410b) (510a, 2510b) (610a, 2610b) (710a, 210b) (910a, 910b) each having an adsorbent heat exchanger (22, 23, 32, 33) (122, 123, 132, 133) (322, 323, 332, 333) (522, 523, 532, 533) (722, 723, 732, 733) (922, 923, 932, 933) provided with an adsorbent on the surface each thereof, capable of alternating between an adsorption process in which moisture in air is adsorbed onto the adsorbent by causing the adsorbent heat exchanger to function as an evaporator that evaporates refrigerant and a regeneration process in which moisture is desorbed from the adsorbent by causing the adsorbent heat exchanger to function as a condenser that condenses the refrigerant, and connected in parallel with one another; a plurality of second utilization side refrigerant circuits (10c, 10d) (110c, 110d) (210c, 210d) (310c, 310d) (410c, 410d) (510c, 510d) (610c, 610d) (710c, 710d) (1010a, 1010b) each having an air heat exchanger (42, 52) (142, 152) (242, 252) (342, 352) (442, 452) (542, 552) (642, 652) (742, 752) (1022, 1032), capable of exchanging heat between refrigerant and air, and connected in parallel with one another, wherein the air conditioning system can supply a room with air that passed through the adsorbent heat exchanger, and can supply a room with air that passed through the air heat exchangers, characterized in that the air conditioning system further comprises: a heat source side refrigerant circuit including a compression mechanism and a heat source side heat exchanger and used as a heat source by both the first utilization side refrigerant circuits (10a, 10b) (110a, 110b) (210a, 210b) (310a, 310b) (410a, 410b) (510a, 510b) (610a, 610b) (710a, 710b) and the said second utilization side refrigerant circuits (10c, 10d) (110c, 110d) (210c, 210d) (310c, 310d) (410c, 410d) (510c, 510d) (610c, 610d) (710c, 710d), wherein the first utilization side refrigerant circuits are connected to a discharge gas connection pipe connected to a discharge side of the compression mechanism, and are connected to an inlet gas connection pipe connected to an inlet side of the compression mechanism. a plurality of first utilization side refrigerant circuits (10a, 10b) (110a, 10b) (210a, 210b) (310a, 2310b) (410a, 2410b) (510a, 2510b) (610a, 2610b) (710a, 210b) (910a, 910b) each having an adsorbent heat exchanger (22, 23, 32, 33) (122, 123, 132, 133) (322, 323, 332, 333) (522, 523, 532, 533) (722, 723, 732, 733) (922, 923, 932, 933) provided with an adsorbent on the surface each thereof, capable of alternating between an adsorption process in which moisture in air is adsorbed onto the adsorbent by causing the adsorbent heat exchanger to function as an evaporator that evaporates refrigerant and a regeneration process in which moisture is desorbed from the adsorbent by causing the adsorbent heat exchanger to function as a condenser that condenses the refrigerant, and connected in parallel with one another; a plurality of second utilization side refrigerant circuits (10c, 10d) (110c, 110d) (210c, 210d) (310c, 310d) (410c, 410d) (510c, 510d) (610c, 610d) (710c, 710d) (1010a, 1010b) each having an air heat exchanger (42, 52) (142, 152) (242, 252) (342, 352) (442, 452) (542, 552) (642, 652) (742, 752) (1022, 1032), capable of exchanging heat between refrigerant and air, and connected in parallel with one another, the air conditioning system can supply a room with air that passed through the adsorbent heat exchanger, and can supply a room with air that passed through the air heat exchangers, characterized in that the air conditioning system further comprises: a heat source side refrigerant circuit including a compression mechanism and a heat source side heat exchanger and used as a heat source by both the first utilization side refrigerant circuits (10a, 10b) (110a, 110b) (210a, 210b) (310a, 310b) (410a, 410b) (510a, 510b) (610a, 610b) (710a, 710b) and the said second utilization side refrigerant circuits (10c, 10d) (110c, 110d) (210c, 210d) (310c, 310d) (410c, 410d) (510c, 510d) (610c, 610d) (710c, 710d), a heat source side refrigerant circuit including a compression mechanism and a heat source side heat exchanger and used as a heat source by both the first utilization side refrigerant circuits (10a, 10b) (110a, 110b) (210a, 210b) (310a, 310b) (410a, 410b) (510a, 510b) (610a, 610b) (710a, 710b) and the said second utilization side refrigerant circuits (10c, 10d) (110c, 110d) (210c, 210d) (310c, 310d) (410c, 410d) (510c, 510d) (610c, 610d) (710c, 710d), the first utilization side refrigerant circuits are connected to a discharge gas connection pipe connected to a discharge side of the compression mechanism, and are connected to an inlet gas connection pipe connected to an inlet side of the compression mechanism.