Abstract: An air conditioning system includes an outdoor air latent cooling treatment stage providing parallel airflow with a return air sensible cooling treatment stage. A mixer mixes the treated outdoor air with the return air to form the conditioned space supply air. A first relative humidity controller monitors the outdoor air relative humidity and separates the outdoor air from saturation to maintain relative humidity in outdoor air ducting below a predetermined mould growth limit. A second relative humidity controller monitors the conditioned space supply air relative humidity and separates the space supply air from saturation to maintain relative humidity in space supply air ducting below a predetermined mould growth limit. The outdoor air latent cooling treatment stage includes a dehumidification heat exchanger, combination pre-cooling and heat reclaim heat exchangers, or a heat transfer pump. The return air sensible cooling treatment stage includes at least a sensible cooling heat exchanger.

Abstract: An air conditioning system includes an outdoor air latent cooling treatment stage providing parallel airflow with a return air sensible cooling treatment stage. A mixer mixes the treated outdoor air with the return air to form the conditioned space supply air. A first relative humidity controller monitors the outdoor air relative humidity and separates the outdoor air from saturation to maintain relative humidity in outdoor air ducting below a predetermined mould growth limit. A second relative humidity controller monitors the conditioned space supply air relative humidity and separates the space supply air from saturation to maintain relative humidity in space supply air ducting below a predetermined mould growth limit. The outdoor air latent cooling treatment stage includes a dehumidification heat exchanger, combination pre-cooling and heat reclaim heat exchangers, or a heat transfer pump. The return air sensible cooling treatment stage includes at least a sensible cooling heat exchanger.

Abstract: An air conditioning system capable of treating a conditioned space by treating outdoor air from outside the conditioned space and treating air returned from inside the conditioned space, and mixing the outdoor air with the returned air to form supply air for the conditioned space, the air conditioning system including: an outdoor air latent cooling treatment stage and a return air sensible cooling treatment stage, and an air mixer for mixing outdoor air with return air to form the conditioned space supply air; wherein the outdoor air latent cooling treatment stage includes a dehumidification evaporator and the return air sensible cooling treatment stage includes a sensible evaporator, both evaporators being coupled to a direct expansion refrigeration circuit, and wherein the dehumidification evaporator thermal capacity is regulated in response to conditioned space humidity and the sensible evaporator thermal capacity is regulated in response to conditioned space dry bulb temperature.

Abstract: An air conditioning system capable of treating a conditioned space by treating outdoor air from outside the conditioned space and treating air returned from inside the conditioned space, and mixing the outdoor air with the returned air to form supply air for the conditioned space, the air conditioning system including: •an outdoor air latent cooling treatment stage and a return air sensible cooling treatment stage, and •an air mixer for mixing outdoor air with return air to form the conditioned space supply air; wherein the outdoor air latent cooling treatment stage includes a dehumidification evaporator and the return air sensible cooling treatment stage includes a sensible evaporator, both evaporators being coupled to a direct expansion refrigeration circuit, and wherein the dehumidification evaporator thermal capacity is regulated in response to conditioned space humidity and the sensible evaporator thermal capacity is regulated in response to conditioned space dry bulb temperature.

Abstract: The present invention provides an air conditioning system that is capable of treating a conditioned space by treating outdoor air from outside the conditioned space and return air from inside the conditioned space, and mixing the outdoor air with the return air to form supply air for the conditioned space, the air conditioning system including an outdoor air latent cooling treatment stage configured to provide parallel airflow with a return air sensible cooling treatment stage, and a means for mixing outdoor air with return air to form conditioned space supply air, wherein the outdoor air latent cooling treatment stage includes at least a dehumidification heat exchanger, combination pre-cooling and heat reclaim heat exchangers, and a heat transfer pump, and the return air sensible cooling treatment stage includes at least a sensible cooling heat exchanger.

Abstract: The present invention provides an air conditioning system that is capable of treating a conditioned space by treating outdoor air from outside the conditioned space and return air from inside the conditioned space, and mixing the outdoor air with the return air to form supply air for the conditioned space, the air conditioning system including an outdoor air latent cooling treatment stage configured to provide parallel airflow with a return air sensible cooling treatment stage, and a means for mixing outdoor air with return air to form conditioned space supply air, wherein the outdoor air latent cooling treatment stage includes at least a dehumidification heat exchanger, combination pre-cooling and heat reclaim heat exchangers, and a heat transfer pump, and the return air sensible cooling treatment stage includes at least a sensible cooling heat exchanger.