NYC 9/11 Public Portal Document
2.2 : Mechanical Exhaust System Visual Inspection
Form 1 of I
Mechanical Exhaust System Identification:
Location:
Area Served:
Associated mechanical room: clean Y N dry Y N
stored chemicals/refuse Y
System Components Surface Component
[NOTE: if component not present (NP), not found (NF) or DusU WTC not
inaccessible (I) please Debris Dust
indicate in last column) present
Present? Present?
4 not
found
Exhaust air outlet: Location: Inaccessible
Accessible for inspection? YIN
louvers, grates and/or screens
(explain):
Y I ^'
outside air duct
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
Exhaust air distribution:
Exhaust air ducts
inspected I
Est total In ft A°
I Q No, locations
Specify type (circle): metal fibrous glass lined metal masonry fibrous glass board
flex-duct wood
Accessible in-Iine fire dampers Est. total qty Z No locations inspected
Accessible turning vanes Est. total 9t y No._ locations inspected
Exhaust air grilles Est total qty i2.. No locations inspected
Other (specify):
Other Information:
General impression (indicate recommendations for cleaning based
on finding of R'TC dust):
[ KEY: NP = not present; NF = not found; I = inaccessible; U =
unknown
NYC-WTC 000133787
OCR can misread numbers and units. Confirm readings against the page image before using them.