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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_000135349
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NYC 9/11 Public Portal Document Seqes on temauamnanes og 2eneers (Mag) CLONED bA> SGUPE UF WORK ey ow Suspect WIC. WiCsRalates Dust System Components System Component ee Substrate Material TaD -— | 7 Estimate % of total dust Light . * loading Heavy *(<1/16 inch (21416 inch Septh Present? 1 Outside eir intake louvers, Beaten andor screens . ee Sy, . . Septh) (Ym) Outside air duct* Outside air dampers) Retum gir grilles” Retuty air plenum. Retum air plenum dampér Retum air duets [Turning vanes -- | Mixing ea or: Filter rack(s) . an | Filter, banksimed Pre-heat coils Cooling coils Re-heat coils - Humidification and/or air cleaning - equipment | Fire dampers - In-line re-heat coils -° Acoustical blower housing ining Duct connectors + ° Blower assembly including blower wheel, blower housing, efr v: anés, in- line noise gnenuators, acoustical treatments (e.g. baffies, duct linings) Condensate érzin pan Condensate eccumulator Supply air plenum Supply air plenum damper(s) Supply gir ducts -High pressure - main frank ~ -Low pressure — branches Supply piesiom or supply duct linings * Supply air duct damper(s) Supply air diffusers Termine! boxes oc os Open or ducted | page ventilation shaft(s) Other Information: LJ Unit cycled prior to inspection - Fiher loading (general impression) Color of DusvDiw Debris Water damage ; Filter bypass (describe) } Visible suspect mold growth Abraded' velarinated acoustical ining ; Evidence of enimal i incursion (carcasse 8, feathers, fecal NYC-WTC_000135349 matter)

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NYC-WTC_000135349Source: NYC Law Department, mirrored locally

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