Williams high performance vertical fan coils are ducted with an unpainted cabinet and bottom or front return. They are used primarily in vertical floor mounted or hideaway applications. This fan coil is furred into partition walls or hidden in closets, utility rooms and other concealed locations with a ducted discharge. A removable front access panel facilitates easy servicing of the coil, blower assembly, with quick connect plug and filter. A one inch discharge duct flange is standard on top panel of each unit.