NYC 9/11 Public Portal Document
2.2 Mechanical Exhaust System Visual Insnectinn
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Mechanical Exhaust System Identification:
Location: Area Served:
Associated mechanical room: clean Y N dry Y N
stored chemicals!refuse Y N
Surface Component
System Components Dust/ Wy7C not
]NOT£:.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 ID' (explain): `•°
Jouv s, grates and/or screens
outside air duct N
outside air damper(s)
Exhaust fan unit:
blower assembly incl. blower wheel, housing, air vanes, in-line noise
attenuators
blower housing acoustical lining
vibration collars NP
Exhaust air distribution: c
Exhaust air ducts Est total in ft Cfy No. locations
inspected__________
Specify type (circle): trietal -fibrous class lined metal masonry fibrous class hoard
flex-duct wood
Accessible in-line fire dampers Est. total gty 7 No. locations inspected d ?
Accessible turning vanes Est. total gty No. location: inspected ,v()
Exhaust air rilles Est. total No. locations ins ected U ,T
Other (specify):
Other Information:
General impression (indicate recommendations for, cleaning based on finding of \VTC dust):
KEY: NP = not present; NF = not found; I = inaccessible; U = unknown
NYC-WTC 000133934
OCR can misread numbers and units. Confirm readings against the page image before using them.