Mount Vernon Primary Center HVAC Replacement

Work covered by the Base Bid to include the demolition of the existing interior air-handling units and boilers in the mechanical room, existing exterior cooling tower, existing ceiling mounted unit ventilators, existing lay-in and gypsum ceilings throughout the school as required to access the existing mechanical systems, and make modifications to the existing ductwork as required for the new mechanical system. New work to include new ground mounted DOAS units, new ground mounted condensing units, new interior ceiling recessed variable refrigerant flow fan-coil system throughout the facility, new LED light fixtures, fire alarm system modifications, new ACT and gypsum ceilings, new gas lines, new exterior concrete pads and chain-link fencing, and painting of the gas line and gypsum ceilings. Corresponding structural, mechanical, electrical, and plumbing work will be included. Work covered by the Alternate Bid #1 include the complete demolition and required concrete patch work of the existing interior concrete curbs within the existing mechanical room. Work covered by the Alternate Bid #2 includes the install of HVAC equipment as manufactured by AAON and Mitsubishi

Division 02 -	Existing Conditions, Demolition, Selective Demolition.
Division 03 -	Concrete, Concrete Forming and Accessories, Cast-in-Place Concrete, Precast Concrete.
Division 04 -	Masonry, Unit Masonry.
Division 06 -	Wood, Plastics, and Composites, Rough Carpentry, Finish Carpentry.
Division 07 -	Thermal and Moisture Protection, Dampproofing and Waterproofing, Thermal Protection.
Division 08 -	Openings, Doors and Frames, Specialty Doors and Frames, Entrances, Storefronts, and Curtain Walls, Windows, Hardware.
Division 09 -	Finishes, Plaster and Gypsum Board, Tiling, Ceilings, Resilient Flooring, Carpeting, Painting.
Division 22 -	Plumbing, Common Work Results for Plumbing, Plumbing Piping, Plumbing Equipment, Plumbing Fixtures, Drinking Fountains and Water Coolers.
Division 23 -	Heating, Ventilating, and Air Conditioning (HVAC), Common Work Results for HVAC, Instrumentation and Control for HVAC, HVAC Air Distribution, Ventilation Hoods, Commercial-Kitchen Hoods, Central HVAC Equipment.
Division 26 -	Electrical, Instrumentation and Control for Electrical Systems, Lighting, Interior Lighting, Emergency Lighting, Exit Signs, Exterior Lighting.
Division 28 -	Electronic Safety and Security, Common Work Results for Electronic Safety and Security, Electronic Access Control and Intrusion Detection, Fire Detection and Alarm.
Division 31 -	Earthwork, Common Work Results for Earthwork, Grading, Earthwork Methods, Soil Treatment.
Division 32 -	Exterior Improvements, Flexible Paving, Rigid Paving, Fences and Gates, Irrigation, Planting, Turf and Grasses.