NYC 9/11 Public Portal Document
2.2 Mechanical Exhaust System Visual TncnPrtinr Fnn,
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Mechanical Exhaust System Identification:
Location: Area Served:
Q
Associated mechanical room: clean Y N dry Y A' stored chemicals!refuse Y N
Surface Component
System Components Dust/ WTC i; not
)NOTE:.if component not present (NP), not found (NF) or Inaccessible (I) please Debris Dust present
Indicate In last column) Present? Present? not
found
• Inaccessible
Exhaust air outlet: Location:
Accessible for inspection? Y NT (explain): `•-
louv~' s, grates and/or screens
O
outside air duct SI
outside air damper(s)
N
Exhaust fan unit:
blower assembly incl. blower wheel, housing, air vanes, in-line noise
attenuators
blower housing acoustical lining
NO
vibration collars N p
Exhaust air distribution:
Exhaust air ducts Est total In ft ~y No. locations
inspected_
Specify type (circle): metal fibrous class lined metal masonry fibrous class board
flex-duct «•ood
Accessible in-line fire dampers Est. total gty 7 No. locations inspected 0 •i
Accessible turning vanes Est. total t y No. locations inspected Np
Exhaust air grilles Est. total gty 7 No. locations inspected Z•
Other (specify):
_____{___
Other Information:
General impression (indicate recommendations for cleaning based on finding of WTC dust):
KEY: NP = not present; NF not found; I @ inaccessible; U = unknown
NYC-WTC 000132725
OCR can misread numbers and units. Confirm readings against the page image before using them.