City receiving report acknowledging delivery of HVAC consulting services for WTC from TAMS Consultants Inc.
NYC-WTC_000135765–000135950
OCR status: ok · source: pdftotext
NYC 9/11 Public Portal Document
Encapsulant coatings shall be for specific use in ventilation systems and applied per manufacturer's instructions including safety instructions. Encapsulant coatings shall be applied directly to the interior porous surfaces of AC/ventilation system components by hand brushing, rolling, or troweling, or via spray system, with a maximum distance of 24" from the spray discharge tip to the surface being treated. Encapsulant coatings may not be fogged into the system. A continuous film thickness should be achieved in treated areas, as per manufacturer's instructions. Encapsulants shall be water-based, with low VOC (volatile organic compound) emissions, and meet NFPA smoke development and flame spread requirements for ventilation system products. Encapsulant coatings shall be applied in accordance with applicable federal, state, or local regulations regarding the use of such products and MSDS copies for any encapsu]ant products used in the AC/ventilation system shall be available on-site.
Areas of damaged interior AC/ventilation system fan unit or duct insulation that is abraded or delaminated such that application of an encapsulant coating would be inappropriate as determined by the NADCA-certified ASCS should be removed in consultation with building management. Replacement of such insulation with an appropriate material shall be the responsibility of building management.
Procedures
1. Identify the system to be cleaned including outside air intake, fan unit, supply ducts and return ducts if appropriate.
2. Determine how the system will be segregated for cleaning; typically the fan unit will be cleaned separately from the ductwork unless the ductwork consists of very short runs on the same floor. Cleaning should start from the furthest point in the system and proceed towards the collection device.
3. Lock out and tag out the fan unit. Building management will be responsible for identify and disabling in-duct smoke detectors if present.
4. Attach a local capture, HEPA filtered, Air Filtration Device (AFD) or vacuum collection system to place the system under negative pressure. Sufficient negative pressure shall be maintained to prevent the dispersion of dust outside of the duct. Isolation/zone pillows shall be used as necessary to isolate sections of the system, so that sufficient negative pressure is maintained in each work zone.
5. Exhaust the AFD or vacuum collection system to the outdoors. If no window is available, a stairwell may be appropriate. Alternately, two AFD's or vacuum collection systems may be connected in series so that a second unit filters the exhaust air from the first. Alternately, the cleaning contractor can have the collection equipment leak tested in-place by an independent third party to ensure that contaminants do not leak through the air cleaning device.
6. Cover all open supply air grilles, supply diffusers, and return air grilles located in the affected ductwork using fire-retardant polyethylene sheeting or bags and duct tape or preservation tape.
7. Place the air handling units and their components under containment prior to beginning work. A temporary Zip-wall containment of 6-mil, fire retardant polyethylene sheeting extending from the floor to the ceiling deck, with a flapped entrance, and maintained
NYC-WTC 000135783
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Ranked by indexed similarity. Reasons describe shared subjects and filing context; check the source records.
NYC-WTC_000135339
Invoice for HVAC consulting services provided at the World Trade Center site in 2003.
22 shared non-person entities · 1 shared topics · Same agency, volume and box · similarity 0.994
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000134538
An HVAC inspection report from Cole Consulting Corporation dated February 13, 2003, recommending cleaning of units at 275 Greenwich Street due to WTC dust.
5 shared non-person entities · 1 shared topics · similarity 0.996
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000132758
A ventilation system evaluation form for a multi-use facility with 300 residential units and nine floors.
2 shared non-person entities · 1 shared topics · similarity 0.995
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000129218
Form documenting ventilation system types and facility details for a building at 49 Fulton Street.
2 shared non-person entities · 1 shared topics · similarity 0.995
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000117345
January 30, 2003 letter from Athenica Environmental Services regarding HVAC and environmental inspections at 250 South End Avenue.
5 shared non-person entities · 1 shared topics · similarity 0.994
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000134597
An HVAC inspection report from Cole Consulting Corporation dated February 13, 2003, recommending cleaning of units at 295 Greenwich Street due to WTC dust.
6 shared non-person entities · 1 shared topics · similarity 0.994
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000133722
Memo recommending cleaning of specific roof equipment at 295 Greenwich Street after WTC dust was found during inspection.
6 shared non-person entities · 1 shared topics · similarity 0.994
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000131909
Blank ventilation system evaluation form for recording building details and inspection data.
2 shared non-person entities · 1 shared topics · similarity 0.994
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000116234
Form documenting building details and inspection results for 300 Albany Street, including checks for ACM, air monitoring, and facade conditions.
4 shared non-person entities · 1 shared topics · similarity 0.994
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000113892
Invoice from Athenica Environmental Services for HVAC and environmental inspections performed at 380 Rector Place on January 13, 2003.
6 shared non-person entities · 1 shared topics · similarity 0.994
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000133682
Blank form for evaluating ventilation systems including building contact details and system types at the World Trade Center site.
2 shared non-person entities · 1 shared topics · similarity 0.993
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000116323
List of HVAC components including fans, ducts, and mixing chambers at 300 Albany Street.
4 shared non-person entities · 1 shared topics · similarity 0.993
machine-extracted · confidence unavailable · Check page ↗Similar subjects in other documents. Similarity does not establish the same event, measurement or conclusion.
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Readers open these alongside this record — through an Ask answer, the same folder, or indexed similarity. Not a claim they are about the same event.
NYC-WTC_000134538
An HVAC inspection report from Cole Consulting Corporation dated February 13, 2003, recommending cleaning of units at 275 Greenwich Street due to WTC dust.
Similar indexed content
A ventilation system evaluation form for a multi-use facility with 300 residential units and nine floors.
Similar indexed content
NYC-WTC_000129218
Form documenting ventilation system types and facility details for a building at 49 Fulton Street.
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January 30, 2003 letter from Athenica Environmental Services regarding HVAC and environmental inspections at 250 South End Avenue.
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NYC-WTC_000134597
An HVAC inspection report from Cole Consulting Corporation dated February 13, 2003, recommending cleaning of units at 295 Greenwich Street due to WTC dust.
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