Patent ID: 6427461
Filing Date: 2002-08-06
Classification: F24F,G05D

Abstract:
A space conditioning system for conditioning air within an enclosed space, comprising:an air mover for circulating air to an enclosed space; a first heat exchanger for cooling air being circulated to the enclosed space; a second heat exchanger disposed to heat air being circulated to the enclosed space to a temperature above the temperature of air discharged from said first heat exchanger; a duct in communication with said first heat exchanger for circulating air from the enclosed space through said first and second heat exchangers and said air mover for circulation back to the enclosed space; a vapor refrigeration unit, including a compressor, a condenser, a first conduit for conducting condensed refrigerant fluid from said compressor to said first heat exchanger and a second conduit for conducting heated refrigerant gas from said compressor to said second heat exchanger; and a control system, including a humidity sensor for sensing a humidity corresponding to humidity of air in the enclosed space and a controller operably connected to said humidity sensor, said refrigeration unit being responsive to a control signal from said controller indicating that the humidity is above a setpoint of said humidity sensor to conduct heated refrigerant gas from said compressor to said second heat exchanger and from said second heat exchanger to said condenser and to conduct condensed refrigerant fluid from said condenser to said first heat exchanger, whereby air being circulated to the enclosed space is cooled and dehumidified by said first heat exchanger and is reheated by said second heat exchanger.