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Invoice for HVAC consulting services, April-May 2003

Machine-extracted title · confidence 95%

Invoice submitted for professional engineering services related to HVAC consulting and oversight of World Trade Center evaluation and cleaning.

NYC-WTC_000133898–000133963
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Scanned page image, NYC-WTC_000133952
OCR text

OCR status: ok · source: pdftotext

NYC 9/11 Public Portal Document

2.2 Mechanical Exhaust System Visual Inspection Form paeo I .,r, Mechanical Exhaust System Identification: o(

Location: n c

Area Served:

Associated mechanical room: clean Y N dry Y N stored chemicalslrefuse Y. N Surface Component System Components 0 Dust/ %N7C t; 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? YI'N (explain): ~° L louvk s, grates and/or screens NP outside air duct rJ • 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 p

Exhaust air distribution: Exhaust air ducts Est total In ft- fSy No. locations inspected t Specify type (circle): metal fibrous class lined metal masonry fibrous class board flex-duct wood

Accessible in-line fire dam ers Est. total t No. locations ins ected Accessible turning vanes Est. total No. location=_ inspected Exhaust air illes Est. total No. locations ins ected Other (specify):

Other Information:

K-idJb

General impression (indicate recommendations for cleaning based on finding of %N'TC dust):

KEY: NP = not present; NF = not found; I = inaccessible; U = unknown

NYC-WTC 000133952

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NYC-WTC_000133952Source: NYC Law Department, mirrored locally

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