HVAC consulting services invoice, NYC WTC site, 2003

NYC 9/11 Public Portal Document 2.1 Central Ven~l~a fl System Visual Veatila2ion System Identific a on Inspection Form t~" Pe 1 of 2 fdAC. Location: av ~ ~~ ~~ Serv~ad Associated mechanical roam: dean ALL Y N ~3'~1' stored chemicalstrefuse_____Y System Components Surface [NOTE: if component ml present Component (NP), net found (NF) or WTC • not present indicate in last column] inaccessiible (I) Please Dew Outside air intake: PieslrK Dust M K • not folatid Pre Location: • inacce Accessible for inspection' Y Y N (ems ): — louvers, grates and/or screens — outside air duct (V - outside air damper(s) Air handling unit: — outside air mixing chamber - raterr (S) y — filter media — blower assembly incL ':►lower wheel, blower housing,air vanes' in-line noise attenuators — blower housing acoust l lining — Pre-heat coils — heating coils 1J p — cooling coils y N — re-heat coils N — condensate drain pan Q — fly air plenum y — Supply air plenum damiser(s) — vibration collars y --;p •w u»t"Ounon: - — Supply air ducts Est. to-al In t ~7 5O No. locations inspected Specify type (circle): . C sous I jjjj a y thous class board L-. w — Accessible in-line fire darr.oers Est total qty . ~_ No. locations inspected_ — Accessible b11ning v~ Est. total qty No. locations Inspected — In-line ----.— reheat/cooling

— Supply air diffusers Est total qty No. locations inspected JJf Est. total qty No. locations inspected2~ Return air disirlbution: — Return air ducts Est, to 1 _

N In R p No. locations Pe~ed Specify type (circle): t nea m I me =_

— Return air plenum Est. total RA plenum areas No. locations inspected_ — Return air plenum ---1 — Pet Est total qty No. locations inspected — Accessible in-lineIire dal.lpers Est. total qty — Accessible turning vanes No. locations ittspected~— total , No. locations inspected — Return air grilles ----— Eat total qty No. locations inspected t _u_F r

NYC-WTC 000135407