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HVAC consulting services invoice, NYC WTC site, 2003

Machine-extracted title · confidence 95%

Invoice for HVAC consulting services provided at the World Trade Center site in 2003.

NYC-WTC_000135339–000135553
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Scanned page image, NYC-WTC_000135464
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NYC 9/11 Public Portal Document Mechanical Exhaust System Identification: aman Exnaust System Visual Inspection Form Page 1 of 1 MECHANICAL EXHALST FAN#4 Location: 16"4002-RICF -350 ALBANYETRETY Area Served: ndl". : APTS 2 iEE TO 15F200R E: PENTHOLSE#2 Associated mechanical room: clean Y_N dry. _N stored chemicals/refuse System Components INOTE: if component not present (NP), not found (NF) or inaccessible (I) please indicate in last column] Exbaust air outlet: Surface Dust/ Debris Present? WTC Dust Present? Component • not present • not found • Inaccessible Location: Accessible for inspection? Y N _(explain): - louvers. grates and/or screens - outside air duct - ouzside air damper(s) Exhaust fan unit: - blower assembly incl. blower wheel, housing, air vanes, in-line noise attenuators - blower housing acoustical lining - vibration collars Eshaust air distribution: - Exhaust air ducts Est iotal ln ft 160 No. locations inspected_ Specify type (circle): fibrous glass lined meta masonry fibrous glass board flex-duct wood - Accessible in-line fire dampers Est. total qty_ 15No. locations inspected_ 0 - Accessible tuming vanes Est. total qty No. locations inspecied - Exhaust air grilles Est. total qty 15 No. locations inspected O Other (specify): Y Y Y Y Other Information: THE UNIT IS NOT WORKING. NP NP I NP I General impression (indicate recommendations for cleaning based on finding of WTC dust) - WTC REATED DUST W'AS ORSERNED iN THE COMDONGNTS DF THE FAN ABOVE AND BELOW THE LOUVERS. IUTC RELATED DUST WAS OBSERUED IN THE DUTWORK CEANING FOR WOTC PELATED DUST IS RECOMHENDED CLEAN THE COHPONENTS OF THE FAN AND 1S ASSOCIATED DUCTIRORK. KEY: NP = not present; NF = not found; I = inaccessible; U = unknown NYC-WTC_000135464

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NYC-WTC_000135464Source: NYC Law Department, mirrored locally

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