NYC 9/11 Public Portal Document
2.2 Mechanical Exhaust System Visual Insnertinn Fnrrn u.,.... ,J Vl
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Mechanical Exhaust System Identification:
Location: Area Served:
Associated mechanical room: clean Y N diy Y N
stored chemicals/refuse 1' NT
Surface Component
System Components Dust/ WZ'TC r; not
[NOTE: if component nbt 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 (explain):
lauv1 s, grates and/or screens
outside air duct
outside air dam er(s) Nn
Exhaust fan unit:
blower assembly incl. blower wheel, housing, air vanes, in-line noise
attenuators
blower housing acoustical lining ^f n
vibration collars N (~
Exhaust air distribution:
Exhaust air ducts Est total In ft_____________ No. locations
inspected____
Specify type (circle): et fibrous class lined metal masonry fibrous glass board
flex-duct good
Accessible in-line fire dam ers Est. total ? No. locations ins ected
Accessible turning vanes Est. total t ' No. locations inspected
Exhaust air rilles Est. total No. locations ins ected
Other (specify):
Other Information:
General impression (indicate recommendations for cleaning based on finding of NN'TC dust):
KEY: NP = not present; NF= not found; I Inaccessible; U.= unknown
NYC-WTC 000132731
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