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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_000135482
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NYC 9/11 Public Portal Document 2.1 Central Ventilation System Visual Inspection Form Page 1 of 2 venwauon ayswm luenuncanon: IWAC ( obr Jq Lo lion: Area S 35GhLI3Ar►,.~ s'~ ~e~'z~ 5't, vm ok Vcow1 erved: Associated mechanical room: clean Y N dry Y N stored chemicals/refuse Y N System Components Surface Component Dust/ WTC • not present [NOTE: if component not present (NP), not found (NP) or inaccessible (1) please Debris Dust indicate in last column] • not found Present? Present? • Inaccessible Outside air intake: Location: Accessible for inspection? Y, __N (explain):

— louvers, grates and/or screens — outside air duct — outside air damper(s) Air handling unit: — outside air mixing chamber — filter rack(s) — filter media — blower assembly incl. blower wheel, blower housing, air vanes, in-line noise attenuators — blower housing acoustical lining .y — pre-heat coils — heating coils N !' — cooling coils s.f — re-heat coils p — condensate drain pan I — supply air plenum — supply air plenum damper(s) NP — vibration collars ,P Supply air distribution: — Supply air ducts Est. total In ft No. locations inspected 2_ Specify type (circle): :brou l lindieta masonry fibrous class board fleductw — Accessible in-line fire dampers Est. total qty No. locations inspected Np — Accessible turning vanes Est. total qty I No. locations inspected N P — In-line reheat/cooling coils Est. total qty No. locations inspected P N — Supply air diffusers Est. total qty No. locations inspected Return air distribution: — Return air ducts Est, total in ft 5 No. locations inspected 2. Specify type (circle): eta ous ]ass ' ed mete masonry fibrous class board flex-duct w '1 — Return air plenum Est. total RA plenum areas_I No. locations inspected — Return air plenum damper Est. total qty I_ No. locations inspected_L Nj — Accessible in-line fire dampers Est. total qty No. locations inspected — Accessible turning vanes Est. total qty_,.[ No. locations inspected I — Return air grilles Est. total qty I No. locations inspected 1 • '

NYC-WTC 000135482

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NYC-WTC_000135482Source: NYC Law Department, mirrored locally

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