HVAC consulting services invoice, NYC WTC site, 2003

NYC 9/11 Public Portal Document 2.1 Central Ventiht~ P eIof Area Served Associated mechanical roam: clean YM y N mY--~,[Y N stored chemicals/ System Components Y_J N [NOTE: If component nct present (NP), net found ( Duati WTC -- r..,.can indicate in last coiumnj or inaccessible (I) please •.;;;;= not ptrsent Debris t Outside air Present? • not found Present? • Accessible for inspection' Y f N (explain): louvers, grates and/(,r screens — outside air duct outside air dampers)

outside air i i cha;nber — filte~k7 g Ater media blower assemb11 Incl. 'dower y wheel, blower housing, au — blower housing acoust; vaaest ln~-line noise atteanators ral lining — prebeat coils — heating coils — cooling coils — re-heat coils — condensate drain pan supply air plenum - supply air nlenttm .t., vibration collars

[ ply air distribution: upply air ducts Est, to•al In CrD l py type (circle): MO ! s No. locations

cessible in-line fire dampersEst total —Zccessible turning va s No. locationsi Est total No. locations inspected — Inline reheaticooling O - coils Est total qty Sn linep'y air ditJco No. locations inspected ~_ Est total qty : Return air distribntion: . locations i pected — ROOM air d&m Est. total in ft ~ No. locations Inspected Spey type (circle)• . DQ-"—' ~bIo1LS g cg in R ... w pg glass " Return air plenum. E eta! plenum _—j._` No. locations inspected — Return air plenum damper total No. locations inspected — Accessible in-line fire dar —"'--- Est total clap i — Accessible turning No. locations inspected Est total — Return ~--- No. locations inspected 8rillas Est total qty No. locations inspected N?

NYC-WTC 000135413