NYC 9/11 Public Portal Document
2.2 Mechanical Exhaust System Visual Incneetinn Fern, D...e I of I
Mechanical Exhaust System Identification:
Location, Area Served:
(L
Associated mechanical room: clean Y N dry Y stored chemicals/refuse
N Y N
Surface Component
System Components Dust/ WTC not
(NOTE: if component not present (NP), not found (NF) or inaccessible (I) please Debris Dust present
indicate in last column] Present? Present?
4 not
found
Inaccessible
Exhaust air outlet: Location:
Accessible for inspection? Y h (explain): y ~j
r
louvers, grates and/or screens
• -- outside air duct r
outside air dam er(s - .
_.N
Exhaust fan unit:
blower assembly incl. blower wheel, housing, air vanes, in-line noise .... .
attenuators
blower housing acoustical lining
vibration collars - fv
Exhaust air distribution:
Exhaust air ducts Est total In ft No. locations
inspected
Specify type (circle): me i rou elan lined etal asonry fibrous glass board
flex-duct
Accessible in-line fire dam ers Est. total No. locations ins ected
Accessible timing vanes Est. total gty No. locations inspected P
Exhaust air rilles Est. total No. locations ins ected
Other (specify):
Other Information:
General impression (indicate recommendations for cleaning based on finding of %\'TC dust):
N t
a,
KEY: NP = not present; NF = not found; I - inaccessible; U = unknown
NYC-WTC 000135901
OCR can misread numbers and units. Confirm readings against the page image before using them.