46 - Attachment 0004 SEED PROJ SOW 2007 MECH PLN UPGD 054886.pdf

This is a mechanical engineering concept plan and technical drawing document for a proposed mechanical upgrade to Buildings 4501 and 4504 located in the Aberdeen Proving Ground area of Maryland. The document is marked "NOT-FOR-CONSTRUCTION" and is prepared by the Directorate of Installation Operations, Engineering & Construction Division.

The drawings depict proposed piping, HVAC system modifications, and mechanical equipment installations for the facility upgrade. The plan includes system layout schematics for both buildings, showing detailed specifications for new piping routing, air separators, expansion tanks, hot water converters, and connections to existing systems. Key mechanical components illustrated include proposed additions to the existing piping infrastructure, modifications to support new or upgraded equipment, and integration points with current facility systems. The document includes multiple cross-sectional views, isometric representations of the mechanical systems, and detailed annotations indicating valve types, piping sizes, and connection points. The drawing is identified as Sheet 1 of 1 and bears the project number MFH054886, indicating this is a preliminary concept design intended for planning and approval purposes rather than final construction documentation.