NASA BUILDING 301 — JOB 2837 — ASSEMBLED DOUBLE-WALL RUNS, 3D
All 16 pieces from the shop tickets dated 10/8/2026, assembled and routed per M-402. Use the view buttons for true plan and elevation views. In 3D, drag to spin; in plan or elevation, drag to pan. Pinch or scroll to zoom.
Supply straight/box
Return straight/box
Taper
Flex connector
90° elbow
Silencer / equipment
Grille Note: Routed per the M-402 bid drawing: S-1 is the vertical drop at AHU-B301-2; E-1 (orange) is a square-throat, square-heel elbow with 6″ throats on both ends and turning vanes, drawn the way the duct builder builds it (one fitting, outline only) — a shop fitting, not on the 10/8 ticket. RTU return is the standalone riser boot (R-2 flare to the RG-1 neck, R-1 = 22×28 RA riser to the roof). FCU return grille RG-2 is on the east end of the return plenum. The silencer is per M-402 Plan Note 16. The RTU and FCU are separate systems and do not connect. Equipment boxes are schematic; piece sizes are the ticket I.D. sizes; notched pieces (RTU S-1, S-4, R-1) verify against structure in the field.