Every dimension belongs to an object and a drawing. Original room numbers, object marks, printed values and source regions stay together—even when the answer is unresolved.
464 of 464 photographs have extraction records, containing 27,517 properties. Initial image review is not exhaustive extraction: 0 photographs have passed the full-region check. 66 numbered sheets are reconciled. Modeling and architectural registration are separate work; these counts do not establish a complete building.
Download the structured register (JSON)Object: Oil heating coil diagram source instance
Printed values, calculations, image traces and observed counts are different kinds of evidence. “Verified” applies to the specific reading—not to the whole room or model.
1.5 in
Local leader nominal pipe size; no material/seamless fabrication asserted.
Drawing notation: 1½″ PIPE HEATING COIL
Local leader nominal pipe size; no material/seamless fabrication asserted.
1.5 in
Same original coil-top steam branch leader; not tank shell, apparatus OD or installed quantity.
Drawing notation: 1½″ STEAM
Same original coil-top steam branch leader; not tank shell, apparatus OD or installed quantity.
26 count
Spacing-chain count, not installed coil/fixture quantity or developed pipe length.
Drawing notation: 26 @ 3″ CENTERS = 6′-6″ APPROX
Spacing-chain count, not installed coil/fixture quantity or developed pipe length.
3 in
Printed centers of coil spacing chain.
Drawing notation: 26 @ 3″ CENTERS = 6′-6″ APPROX
Printed centers of coil spacing chain.
6.5 ft
Printed6feet6inches as decimal feet; approximate qualifier retained, distinct from developed160ft reading.
Drawing notation: 26 @ 3″ CENTERS = 6′-6″ APPROX
Printed6feet6inches as decimal feet; approximate qualifier retained, distinct from developed160ft reading.
Exact PIPE noun does not supply material species or seamless fabrication. Earlier2″SEAMLESS locus still needs separate reconciliation.
Drawing notation: 1½″ PIPE HEATING COIL
Exact PIPE noun does not supply material species or seamless fabrication. Earlier2″SEAMLESS locus still needs separate reconciliation.
Source inventory is separate from the floor filters above. Select one drawing to inspect it; no drawing set is preloaded.