NYC-WTC_000163408
Second addendum to monitoring scope including HVAC system checklist and inspection procedures.
10 shared non-person entities · 1 shared topics · similarity 0.992
machine-extracted · confidence unavailable · Check page ↗Document / 7 pages
SCOPES OF WORK IN DOOR AIR & CLEANING
Label derived from the City's folder field. The City does not supply document titles.NYC-WTC_000140413–000140419Page image
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NYC 9/11 Public Portal Document
ADDENDUM #2 World Trade Center Dust Cleaning Program Monitoring Contract Scope of Work
— Rotary metal cutting saw — For covering service openings, sheet metal plates, panels or access doors meeting NADCA 9705, NFPA 90A/90B and SMACNA specifications — Telescoping inspection mirrors and flashlights — Boroscope — HEPA vacuum
6.4 Typical system components for each equipment category
The ventilation systems may contain, but may not necessarily be limited to combinations of the listed components in each category.
6.4.1 Ventilators, wall air conditioning units and window air conditioning units in common spaces
— Outside air intake louvers, grates and screens — Outside air duct -- Outside air dampers — Return air grille — Return air plenum — Filter rack — Filter media — Coils (evaporator) — Blower assembly — Condensate drain pan — In-line electrical resistance strip heaters (in supply ducts connected to unit ventilators) — Fire dampers — Turning vanes — Supply plenum or supply duct liner — Supply air diffuser
6.4.2 Fan coil/heat pump units in common spaces
— Return grille — Return air plenum — Filter rack — Filter media — Blower assembly — Thermal coils — Supply plenum — Supply diffusers
6.4.3 Central air system
NYC-WTC 000140415
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NYC-WTC_000140415Source: NYC Law Department, mirrored locally
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NYC-WTC_000140472
Addendum detailing all ventilation system components to be inspected and cleaned, including intake louvers, ducts, coils, blower assemblies, and duct linings at World Trade Center.
1 shared non-person entities · 1 shared topics · similarity 0.971
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Addendum defining scope for cleaning World Trade Center dust from ventilation components including ducts, coils, and filters.
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Guidelines for evaluating direct exhaust systems and identifying dust accumulation points in residential ventilation equipment.
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Identification of ventilation system components most likely to have WTC-related dust accumulation, including air intakes, dampers, filters, and downstream components.
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Addendum defining inspection scope for HVAC components at World Trade Center sites to assess dust accumulation.
2 shared non-person entities · 1 shared topics · similarity 0.957
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000140475
Criteria for distinguishing WTC dust from other contaminants and determining the need for cleaning or sampling.
9 shared non-person entities · similarity 0.956
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Addendum specifying accessible HVAC components for inspection and methods for accessing system elements during World Trade Center dust evaluation.
2 shared non-person entities · 1 shared topics · similarity 0.956
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000140300
Scope of work detailing evaluation procedures for HVAC systems to assess World Trade Center dust impact and cleaning recommendations.
9 shared non-person entities · similarity 0.955
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000140291
Bibliography section listing standards from NADCA and SMACNA required for conducting World Trade Center dust evaluations in HVAC systems.
1 shared non-person entities · similarity 0.952
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000140466
Document listing applicable standards like ACR 2002 and NADCA 97-05 for the assessment and cleaning of HVAC systems.
1 shared non-person entities · similarity 0.952
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000140471
Addendum listing required inspection equipment and typical HVAC system components for World Trade Center dust cleaning.
1 shared non-person entities · 1 shared topics · similarity 0.952
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NYC-WTC_000163408
Second addendum to monitoring scope including HVAC system checklist and inspection procedures.
Similarity score 1.000 (not a probability)
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000140471
Addendum listing required inspection equipment and typical HVAC system components for World Trade Center dust cleaning.
Similarity score 0.999 (not a probability)
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000140296
Technical guidelines defining which ventilation components are included in the World Trade Center dust evaluation and where dust accumulation occurs.
Similarity score 0.998 (not a probability)
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000163408
Second addendum to monitoring scope including HVAC system checklist and inspection procedures.
Similarity score 0.976 (not a probability)
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000140472
Addendum detailing all ventilation system components to be inspected and cleaned, including intake louvers, ducts, coils, blower assemblies, and duct linings at World Trade Center.
Similarity score 0.975 (not a probability)
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000140297
Addendum defining scope for cleaning World Trade Center dust from ventilation components including ducts, coils, and filters.
Similarity score 0.974 (not a probability)
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