Addendum defining inspection scope for HVAC components at World Trade Center sites to assess dust accumulation.
NYC-WTC_000140298Folder label: “SCOPES OF WORK IN DOOR AIR & CLEANING”
OCR status: ok · source: pdftotext
NYC 9/11 Public Portal Document
ADDENDUM #2 World Trade Center Dust Cleaning Program Monitoring Contract Scope of Work
Determine the components that are accessible. At minimum, representative surfaces of the following system components should be inspected:
- air intake (outdoor or return) - air intake dampers - return air grilles - return air p lenum — horizontal surfaces - impingement points (e.g. turning vanes, elbows, transitions) - filter racks and filter media - blower - thermal coils - interior surfaces of the supply air ducts - horizontal surfaces - impingement points (e.g. turning vanes, elbows, transitions) - volume dampers - terminal boxes - supply diffusers
Note that depending on the size and complexity of the HVAC system, access may require the use of ladders, lifts or scaffolds using appropriate methods of fall protection.
6.5.1.2 Methods of Access
The following list summarizes methods of accessing HVAC system components for inspection;
- through existing service openings (i.e., access doors and panels) - by disassembly of housing - by installation of service openings (may range from 1” diameter holes to access doors)
The HVAC/Electrical Professional shall assess the accessibility of each HVAC system component to be inspected. If an HVAC system component is not accessible, the Environmental Professional shall be consulted to determine whether installation of a service opening will likely disturb asbestos-containing materials. After such consultation, if approved by the Environmental Professional, the HVAC/Electrical Professional shall install service openings as needed to inspect the HVAC components listed in 6.5.1.1.
NOTE: Disassembly of housing and installation of service openings may only be performed by the HVAC/Electrical Professional and replacement plates, panels or access doors shall be installed in accordance with NFPA, NADCA and SMACNA standards and NYC building codes.
NYC-WTC_000140298
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NYC-WTC_000140473
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 · Same agency, volume and box · similarity 0.999
machine-extracted · confidence unavailable · Check page ↗2 shared non-person entities · 1 shared topics · Same agency, volume and box · similarity 0.958
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.
1 shared non-person entities · 1 shared topics · Same agency, volume and box · similarity 0.934
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.
1 shared non-person entities · 1 shared topics · Same agency, volume and box · similarity 0.932
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000140474
Addendum outlining visual inspection protocols and methods for evaluating World Trade Center dust accumulation in HVAC systems.
2 shared non-person entities · 1 shared topics · Same agency, volume and box · similarity 0.928
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000140299
Addendum defining visual inspection methods and evaluation criteria for HVAC systems impacted by World Trade Center dust.
2 shared non-person entities · 1 shared topics · Same agency, volume and box · similarity 0.928
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 · Same agency, volume and box · similarity 0.922
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 · Same agency, volume and box · similarity 0.922
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000140470
Guidelines for evaluating direct exhaust systems and identifying dust accumulation points in residential ventilation equipment.
1 shared non-person entities · 1 shared topics · Same agency, volume and box · similarity 0.921
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000140295
Identification of ventilation system components most likely to have WTC-related dust accumulation, including air intakes, dampers, filters, and downstream components.
1 shared non-person entities · 1 shared topics · Same agency, volume and box · similarity 0.919
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000163408
Second addendum to monitoring scope including HVAC system checklist and inspection procedures.
2 shared non-person entities · similarity 0.950
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000162671
EPA forwards revised HVAC cleaning checklist and proposes meeting to brief DEP staff and contractors on implementation procedures.
1 shared non-person entities · 1 shared topics · similarity 0.923
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Review comments on a proposed scope of work document regarding the roles of technicians and monitors in the World Trade Center cleanup process.
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