A06_Drawings.pdf

These are HVAC ductwork design drawings for the Lowell National Historical Park, specifically detailing first and second floor HVAC systems and mechanical room configurations. The drawings (H3, H5, and H16) provide technical specifications for existing and proposed mechanical systems, with key notes indicating requirements such as:

1. Replacing two air handlers in the existing mechanical room, with instructions to connect to all related ducts and pipes. The drawings specify replacing components to meet fire, building codes, and design requirements, including verifying mechanical room dimensions and ensuring proper maintenance clearances. Specific equipment mentioned includes ACU-2 and ACU-4, with detailed routing for supply, return, and exhaust air ducts across multiple floors. Additional notes highlight specific system details like return air filtering for the weave room, cotton fiber considerations, and a separate humidity control system.