Patent ID: 7913501

Claim:
A water-cooled air conditioning system for conditioning air in an enclosed space, the system associated with a water source, the system comprising: a condenser adapted to conduct heat from a refrigerant to water, the condenser having a water inlet and a water outlet; an evaporator adapted to conduct heat from air to refrigerant; a refrigerant circuit including a compressor and an expansion device and adapted to circulate refrigerant between the condenser and evaporator; a condenser water circuit comprising a supply conduit adapted to circulate water from the water source to the water inlet of the condenser and a return conduit adapted to circulate water from water outlet of the condenser to the water source; an air circuit adapted to receive return air from the space, to circulate the air through the evaporator, and to direct conditioned supply air to the space; a reheat heat exchanger adapted to conduct heat from water to air, the reheat heat exchanger disposed in the air circuit downstream of the evaporator and having a water inlet and a water outlet; a regenerative condenser water reheat circuit including a pump and adapted to circulate water from the return conduit of the condenser water circuit to the water inlet of the reheat heat exchanger and from the water outlet of the reheat heat exchanger to the supply conduit of the condenser water circuit; and a control assembly comprising: a temperature sensor for detecting the temperature of the supply air entering the space; and a flow modulation assembly adapted to adjust the amount of water from the water source relative to the amount of water from the reheat circuit that is entering the condenser through the condenser water circuit supply conduit to maintain the supply air near a selected temperature.