Attachment 2 - Main Building Renovation Drawings.pdf

These are Record Drawings dated June 24, 2008, for a laboratory building project prepared by Bernard Johnson Corporation for the USDA. The drawings provide comprehensive architectural, mechanical, plumbing, electrical, and structural documentation for a multi-sector facility.

The project encompasses detailed demolition plans across six sectors showing structural removal sequencing, roof demolition strategies, and floor-by-floor dismantling procedures. The mechanical systems documentation includes floor plans for HVAC distribution, piping layouts for chilled and hot water systems, air balance diagrams for four sectors, schedules for multiple equipment types (Air Handling Units, Water Chillers, Supply/Exhaust Fans, Cooling Towers, Sound Absorbers, Heat Exchangers, Expansion Tanks, Electric Unit Heaters, and Steam Unit Heaters), and detailed system flow diagrams for chilled/condenser water, heating hot water, and chemical treatment. Plumbing documentation comprises demolition plans by sector, domestic water riser diagrams, and plumbing fixture schedules. The records include floor plans showing mechanical piping distribution, temporary utility plans, fire protection layouts with sprinkler system details, and structural sections through the laboratory building. Additional details cover AHU condensate drain connections, steam humidifier systems, exhaust valve configurations, cooling tower piping, heat exchanger arrangements, and various specialty system details. The drawings also contain control abbreviations, symbols legend, greenhouse operation sequences, and equipment schedules with specifications for capacity, electrical requirements, and design parameters. These technical documents serve as the as-built record of the facility's mechanical, plumbing, and related systems infrastructure.