High efficiency outdoor air conditioning system

摘要

A heat recovery and dehumidifier system for ventilating fresh air to a conditioned space. The system is comprised of an enthalpy wheel or body for treating incoming fresh air to remove heat and moisture therefrom and a duct for introducing fresh air to a first segment of the enthalpy wheel or body. An evaporator coil is in communication with the enthalpy wheel or body to receive fresh air having heat and moisture removed therefrom, the evaporator coil further lowering the temperature of said fresh air and a subcooling coil is provided in communication with the evaporator coil to receive fresh air from said evaporator coil, said subcooling coil treating the fresh air to provide conditioned fresh air having the temperature thereof raised after leaving the evaporator coil, the subcooling coil in communication with said space to be conditioned to supply the conditioned fresh air thereto. Means is provided for returning air from said conditioned space to the enthalpy wheel or body thereby providing a return air and means is provided for passing the return air through a segment of said enthalpy wheel or body to exchange sensible and latent heat from the return air to the enthalpy wheel or body thereby cooling the enthalpy wheel or body. The return air is exhausted to the atmosphere after passing through the enthalpy wheel or body.