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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_000135343
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NYC 9/11 Public Portal Document 2J Lentrat •entttatton systems tcot) I At;HM1,1\'.1 A - SU01 UY WORK

ust/Dirt/Debris • • Suspect WT .Relate ust Estimate % of total dust System loading • light Heavy • Component (c1/16 inch (21/16 inch Present? • System Components Substrate Material None depth) depth (Y/N) Outside air intake louvers, grates • and/or screens Outside air duct • Outside air, dampers) Return air grilles' • . Return air plenum. • Return air plenum dampei . Return air ducts 'Turning vanes Mixing chambers . Filter rack(s) . Filter banks/media Pre-heat coil i • Cooling coils •. . • • Reheat coils Humidification and/or air•cleaning . . equipment Fire dampers . In-line re-heat coils Acoustical blower housing lining Duct connectors Blower assembly including blower wheel, blower housing, air vanes, i a- line noise attenuators, acoustical treatments (e.g. baffles, duct linings) - x• Condensate drain pan Condensate accumulator Supply air plenum • Supply air plenum damper(s) Supply air ducts -High pressure . main trunk i -Low pressure — branches I • Supply plenum or supply duct linings Supply air duct damper(s) Supply air diffusers Terminal-boxes - Open or ducted passive ventilation • shaft(s) ' Other Information: . Unit cycled prior to inspection Color of Dust/Dirt/Debris Filter loading (general impression) p-rw..4A .. Water damage Filter bypass (describe) Visible suspect mold growth Abraded'delarninated acoustical lining Evidence of animal incursion (carcasses, feathers, fecal matter)

NYC-WTC 000135343

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NYC-WTC_000135343Source: NYC Law Department, mirrored locally

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