Desiccant refrigerant dehumidifier

A method for conditioning ambient air for supply to an enclosure comprising the steps of cooling an ambient supply air stream having a temperature range of between 65° F.-95° and above and a moisture content of between 90-180 gr/lb with a refrigerant system cooling coil to reduce the moisture content and temperature thereof to a first predetermined moisture content saturation level and saturation temperature range, passing the thus cooled and dried ambient supply air stream through a segment of a rotating desiccant wheel under conditions which increase its temperature to a second predetermined temperature range of about 73° F.-78° F. and reduces its moisture content further to a predetermined humidity level of between 55-71 gr/lb;

• and then delivering the thus treated air to said enclosure;
• and regenerating the desiccant wheel by heating an ambient regeneration air stream whose temperature and moisture content are substantially the same as that of the ambient supply air stream with the condensing coil of the refrigerant system to increase its temperature to a third predetermined temperature range of 105° F.-135° F. while decreasing its relative humidity and then passing the heated regeneration air stream through another segment of the rotating desiccant wheel to regenerate the desiccant in the wheel.