This facility was 17,900 square feet and required concealed with ceiling-mounted fan coil units which served as the primary air-conditioning device for individual offices and other support areas. Two ground- mounted evaporative cooling, gas fired heating units were designed to introduce a minimum of 4 air changes/hr of ventilation air at all times and evaporative cooling in the summer. Heating space was provided via the low-intensity gas-fired radiant heating system. Hot water unit heaters were provided to heat spaces without ceilings. A mechanical room containing a 650 MBH input natural gas-fired atmospheric cast iron section boiler was employed as the source of heating hot water. An exterior air-cooled packaged nominal 30-ton chiller was utilized to generate chilled water for building cooling.