HVAC consulting services invoice, NYC WTC site, 2003

NYC 9/11 Public Portal Document 2.1 Central Venrlilstf, ge I of 2 c~ a .! .? k-0 -Q j.j _ Area Associated mechanical mum: 2Sotfi~i FND>~va clean y N QYM a Yrtrx~a, use System Components Y L,• N [NOTE: if component act :larfhce -- present (NP), net found (M) DwH Component dicate in last colwnnj or inaccessible (I) please Debris Dust t not pu'e+eat wnon: Present? Present? • not found 0

Accessible for inspections Y f

louvers, grates and/or screens - outside air duct outside air dafper(s)

- Outside air nixing cha;nber - filter rack(s) filter nmedia blower assembly incl. '.)lower Y wheel, blower air vanes, in--line noise - blower housing acoust; ;,a attenuators lining - pre-heat coils - heating coils - cooling coils - re-heat coils - condensate drain pan supply air plenum - supply air t)IEtmm -vibration collars

` SuPP1Y air ducts `-----Eat tcl In t7~ Specify type (circle): s No. locations itnspec ed

- Accessible in-line fire chapners total - Accessible turning vanes - No. locations irispe total ~Y_.~_ No. -- litre reheaxlcooltng locations inspected O ails Eat. total clay - Supg*y air di isers --- — No. locations inspectod Est, total ptv

— Return air dcts Est. total In ft SAY type (circle)/l No. loc ons hAspecie~_ ) 17ro1LS`~ g1Aec nin A ...es t

Ica - Return ag plen Est !otal RA plea= - Return air areas--- I No. locations plenum dame• Eat total qty Accessible in-line --______ No. locatiaita inspected dat7pErs Est total clap - Accessible taming No. Ioc tions inspected vanes Eat. total q, — Return grilles No. locations inspected Eat total qty —._ ~ No. locations inspected N

NYC-WTC 000135413