Ventilation System Evaluation Form, WTC Site, Feb 2003

NYC 9111 Public Portal Document

2.1 .' Central Ventilation System Visual Inspection Ventilation System Identification: Form L Au.%./) 2 Pagel of 2 Location: ✓Q" tL M Area Served: JAssociatedmechanica l room: clean y thy 7 Y au'~D.2 2M N stored chemicals'refuse Y System Components Surface Component i\OTE: if component not presen t (NP), not found (NF) or inaccessible (1) please I Dust! «TC not indicate in last col umn] Debris Dust Present? I present Present? not found Outside air intake: Location: inaccessible Accessible for inspection? Y N (explain): lou •ers, grates and'or screens outside air duct outside air dam er(s) Air handling unit: outside air mixing chamber filter r+ack(s) filter media A) blotyer assembly incl. blower noise attenuators wheel, blower housing, air vanes, in -line blower housing acoustical lining re -heat coils heating coils N cooling coils N re -heat coils con,derjzate drain, an su I 'air lenum Nn su I • airPlenum dam er(s) Vibration collars NP Supple air distributior;: • Supply air ducts Fs:. total in ft of( N-c . locations inspected Specify type (circle) metal fibrous ¢lass lined metal masons• fi brous class board AJ Accessible in -line fire dam ers l Est. total tv 1\0• locations i ts ected Accessible.nirnin~ vanes Est total qn No locations inspected N Su ~I~ air diffusers ; - :~:a: oa ins ected Est. total \o. locations ins ¢tied P Return air distribution: Z n/ Return air ducts Est. total In • ft No. locations inspected Specify type (circle) 2 ( 2l fibrous glass lined metal masonry fibrous glass board flex -duct ~~ood

P.e irn air plenum Est. total Rk pl.'n'-`-" m areas~ locations insoec re d / No. Return air plenum damper Est. A) cted total qty No. locations Accessible in-line fire dampers AP locations inspected Est. total qty No. 'vP

NYC-WTC 000133691