NYC 9/11 Public Portal Document
2.2 Mechanical Exhaust System Visual Inspection Form
Mechanical Exhaust System Identification:
Page 1
1
Location: (b_ F Area Served:
Associated mechanical room: clean Y N dry Y N
stored chemicals/refuse Y N
System Components Surface Compos
Dust/ WTC no
(NOTE: if component not present (NP), not found (NF) or inaccessible (I) please
Debris Dust
4
indicate in last column] present
Present? Present?
4 n
found
Exhaust air outlet: inacces
Location:
Accessible for inspection? Y__/ ' N (explain):
louvers, grates and/or screens
outside air duct
N
outside air damper(s)
Exhaust fan unit: NP
blower assembly incl. blower wheel, housing, air vanes, in-line noise
attenuators
blower housing acoustical lining N
vibration collars
Exhaust air distribution: P
Exhaust air ducts Est total In ft I 2A.) No. locations
inspected
Specify type (circle): metal fibrous ¢lass lined metal masonry fibrous ¢lass board Al
flex-duct wood
Accessible in-line fire dampers Est. total gty I2 No. locations inspected O
Accessible fuming vanes Est. total qty No. locations inspected ,s.JP
Exhaust air illes Est. total No. locations ins ected
Other (specify):
v
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 000133677
OCR can misread numbers and units. Confirm readings against the page image before using them.