Patent ID: 7905108

Claim:
An air conditioning apparatus controlling temperature and humidity of an airstream supplied to an air-conditioned space, comprising: a cold and hot water circuit for the flow of cold and hot water, the cold and hot water circuit including four heat exchangers for effecting heat exchange between the cold and hot water and said airstream, wherein two of the four heat exchangers are air heat exchangers which mainly perform air sensible heat processing, at least one of the air heat exchangers effecting direct heat exchange between water in the water circuit and a first portion of said airstream and the other two heat exchangers are adsorption heat exchangers which mainly perform air latent heat processing with an adsorbent supported on a surface thereof by effecting direct heat exchange between water in the water circuit and a second portion of said airstream, the first portion of said airstream being distinct from the second portion of said airstream, a first switching mechanism for switching a direction of cold and hot water flow so that hot water flows through one of the adsorption heat exchangers while cold water flows through the other adsorption heat exchanger, and a second switching mechanism for switching the direction of cold and hot water flow so that hot water flows through one of the air heat exchangers while cold water flows through the other air heat exchanger.