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<br />EXHIBIT A <br />SUMMARY OF WORK <br /> <br />Mechanical <br />A. Remove existing dehumidification unit and install new packaged exterior unit for ventilation <br />B. Reuse existing natural gas <br />C. Re-connect existing supply and return ductwork <br />a. Double walled with exterior dimensions of 44” x 38” <br />D. Unit to be located in the same location as existing but on structure <br />a. Unit to be 5’ in the air <br />b. AHU has downward discharge and return <br />c. Modify supply ductwork as needed to go around water spout <br />d. Catwalk shall be installed around unit where service need to be done <br />Electrical: <br />A. Disconnect power for dehumidification unit <br />B. Provide electrical power for the new unit <br />C. Bring in new power from building for larger load <br />Controls: <br />A. Provide new Controls for the unit <br />B. New VFD’s on both supply and return motors <br />C. New space temperature, humidity, and CO2 in return ductwork <br /> <br />City Hall Boiler Plant Replacement: Contractor to remove existing boiler plant and install new boilers <br />Mechanical <br />A. Remove existing equipment, disconnect hot water and natural gas lines <br />B. Contractor to provide and install two 2MMBTU boilers <br />a. Provide and install new combined stack for the units <br />b. Install OA based on boiler recommendation <br />c. Provide and install new <br />C. Replace hot water pumps <br />a. Pumps shall be in the same location as old <br />D. Clean and flush the full system <br />E. Eliminate the Heat Exchanger, pumps, expansion tank and accessories in the penthouse <br />a. Connect existing 2.5” lines from the boiler plant in penthouse with piping <br />b. System has 35% Propoline Glycol <br />Electrical: <br />A. Disconnect equipment for Mechanical Contractor to remove. <br />B. Provide electrical power for the new equipment <br />Controls: <br />A. Disconnect any controls from the equipment <br />B. Provide new VFD’s for the pumps. <br />C. Provide new Controls for the new equipment – Field Mounted Controls <br /> <br /> <br /> <br /> <br />Library Boiler Addition: Contractor Provide and install new hot water boiler for heating system <br />Mechanical <br />EXHIBIT A Page 6 of 13 <br /> <br />