HVAC inspection report, Warren & [name], Nov 2002

NYC 9/11 Public Portal Document

23 Central ventilation systems (coAfITACHMENT A— SCOPE OF WORK

:.~ Dust/DirUDebtir: • Sus ect.WTC-Related , ust ! ; Estirhate % of total dust- loading System Light Heavy • Component (<1/16 inch (2 1/16 inch Present? System Components . Substrate Material None depth) depth (Y/N) Outside air intake louvers, grates and/orscreens •. . Outside air duct' N Outside airdamper(s) ' • ' Return air grilles Return air plenum'. Return air plenum damper Returri air ducts Turning vanes Mixing chambers '. Filter rack(s)- . • ~• ~. •. : ' Filter batiks/media Pre-heat coils . Cooling coils Re-heat coils - Humidification and/or air'cleaning . equipment • • Fire dampers • . In-line re-heat coils. . 7•' Acoustical bloWer housing'lining • Duct connectors Blower assein •ly including blower wheel, blower-housing, air vanes, in- line noise atteneators, acoustical treatments (e.g. baffles, duct linings) • Condensate drain pan • • $ Condensate'accumulator Supply.air plenum ' Supply air'plenun'i damper(s) Supply air ducts yC -High pressure - main trunk • • -Low pressure — branches ' Supply plenum or supply duct linings ' • X • 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 ofDust/Dirt/Debris Filter loading (general impression) • • Water damage . Filter bypass (describe) Visible suspect mold growth Abraded/delariiinated acoustical lining ' Evidence of animal incursion (carcasses, feathers, fecal matter) • '

NYC-WTC 000132826