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Document / 98 pages

WTC Cleaning Recommendation Memo, 45 Wall Street, January 2003

Machine-extracted title · confidence 98%

Memo recommending cleaning of HVAC components at 45 Wall Street following a visual inspection related to World Trade Center reports.

NYC-WTC_000133531–000133628
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Scanned page image, NYC-WTC_000133569
OCR text

OCR status: ok · source: pdftotext

NYC 9/11 Public Portal Document

Return air grille Sheet Metal B& G < 1/16 inch — No -------

Fresh Air Intake Grille Nil Nil Nil Nil No Nil

Return air plenum Nil Nil Nil Nil No Nil Filter rack Nil Nil Nil Nil No Nil Filter media Fiberglass Disposable BG < 1/16 inch 24x30x1 Blower assembly Nil Nil Nil Nil No Nil Thermal coils Aluminum Copper B&G <1/16 inch Nil No Nil Supply air plenum Nil Nil Nil Nil No Nil Supply air diffuser Sheet Metal G < 1/16 inch No Nil Other Information: Unit needs proper cleaning ® Unit cycled prior to inspection Yes Color of Dust/Dirt/Debris BG (See Column C Above) Filter loading (general impression) 35% ® Water dams e : - NO Filter bypass (describe) N/A Visible suspect mold growth :- No Abraded/delaminated acoustical lining No Evidence of animal incursion (carcasses, feathers, fecal matter) :- NO

4.0 Conclusions/ Recommendations:-

General Impression: There is a small unit in the elevator room providing heat and cool air. There is no fresh air intake. Cleaning is not necessary.

NYC-WTC 000133569

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NYC-WTC_000133569Source: NYC Law Department, mirrored locally

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