50 - Attachment 0004 SEED PROJ SOW 2020 MECH PLMB ALTER 1ST FLR BTH 085810.pdf

This is a mechanical and plumbing notes, legend, and abbreviations sheet for a set of toilet room renovation construction drawings for APG Building 4504 at Aberdeen Proving Ground, Aberdeen, Maryland.

The document serves as a technical reference guide for the construction project, containing four primary sections. Section 1 presents general notes outlining contractor responsibilities for safety, code compliance, quality assurance, and coordination with existing conditions. Section 2 provides mechanical abbreviations including standard HVAC terminology (e.g., AC for air conditioner, AOU for adjustable, BFP for backflow preventer, HPS for high pressure steam). Section 3 lists plumbing abbreviations covering water and drainage systems (e.g., AC for air compressor, AGL for adjustable, BLU for building, CU for clean out, DWV for domestic hot water recirculation pump). Section 4 contains a comprehensive piping legend and ductwork legend with symbols indicating various connection types, equipment designations, and pipe classifications (supply air diffuser, return air grille, exhaust air grille, equipment designation, point of connection, ductwork orientation, and existing infrastructure). The drawing was prepared by the Directorate of Installation Operations, Engineering & Construction Division at Aberdeen Proving Ground, with involvement from Frederick Ward Associates. The project is identified as MP- (Mechanical & Plumbing) drawing dated 06/27/2003, with original size specifications and scale notations included.