NYC 9/11 Public Portal Document
2.2 Mechanical Exhaust System Visual Inspection Form S Poe •I nf 1
Mechanical Exhaust System Identification:
Location: (~ Area Served:
Associated mechanical room: clean Y N dry ? N stored chemicals!refuse Y N
Surface Component
System Components Dust/ WTC p not
~TOTE: if cornP onent itbtpresent (NP), not found m)
F or inaccessible (1) please Debris Dust present
indicate in last column] Present? Present? not
found
inaccessible
Exhaust air outlet: Location:
Accessible for inspection? Y V TT (explain):
louvP s, grates and/or screens /V
outside air duct
outside air damper(s) At
Exhaust fan unit:
blower assembly incl. blower wheel, housing, air vanes, in-line noise
attenuators Al
blower housing acoustical lining N
vibration collars n/ p
Exhaust air distribution:
Exhaust air ducts Est total In ft_____________ No. locations
inspected_ • •
Specify type (circle): Lnetal fibrous class lined metal masonry fibrous glass board
ex-duct wood
Accessible in-line fire dam rs Est. total t y `? No. locations ins ected D
Accessible turning vanes Est. total No. location_ inspected NA
Exhaust air grilles Est. total gxy 7 No. locations inspected 0
Other (specify):
__
Other Information:
General impression (indicate recommendations for cleaning based on finding of \1TC dust):
KEY: NP = not present; NF = not found; I = inaccessible; U == unknown
NYC-WTC 000133930
OCR can misread numbers and units. Confirm readings against the page image before using them.