4.02a Galley_Plumbing.pdf

This is a Plumbing Plan A - Main Level architectural drawing, scaled at 1:50, showing the plumbing system layout for an as-built residential or commercial structure. The plan illustrates the main level plumbing configuration with detailed piping runs, fixture locations, water distribution lines, and drainage systems throughout the building. The drawing includes multiple sections (labeled A through E across columns 1-5) with comprehensive notes and specifications regarding pipe sizing, material types, and installation requirements. Water hammer arresters are positioned at specific locations to prevent pressure surge issues, and the plan identifies hot water supply lines, cold water distribution, and drainage piping with corresponding diameter and material designations. A water supply riser diagram is provided in the lower left section, detailing the vertical distribution of potable water throughout the building levels. The drawing incorporates a detailed waste pipe spacing table on the right side indicating horizontal and vertical measurements for various pipe configurations. General notes specify that for detailed water fixture direction at indicated locations, engineers should refer to architectural drawings, and provide positioning details for pipes and fixtures as noted. The document is controlled under EAR technical data per ECCN EAR99 and is marked as "For As-Built" construction documentation, with the drawing number P-F43101A.