HVAC consulting services invoice, NYC WTC site, 2003

NYC 9/11 Public Portal Document 2.1 Central Ventilntinn Svstnm Visnal Tnenaetinn Fnrm 'D...-_ iIs Vi_r it Ventilation System Identification: f7FAT,NG L. JtT Location: Area Served: a5o fN 1ISOB8y LO ERS7 Jttat Associated mechanical room: clean Y N dry~Y N stored chemicals/refuse YLN Surface Component System Components Dust/ WTC • not present [NOTE: if component not present (NP), not found (NF) or inaccessible (I) please Debris Dust . not found indicate in last column] Present? Present? • Inaccessible Outside air intake: Location:

Accessible for inspection? Y N (explain):

— louvers, grates and/or screens r N — outside air duct fs, 1J — outside air damper(s) Mr handling unit: '- — outside air mixing chamber ,, 7t — filter rack(s) — filter media — blower assembly incl. blower wheel, blower housing, air vanes, in-line noise attenuators N — blower housing acoustical lining — pre-heat coils N j) — heating coils N — cooling coils I) N — re-heat coils — condensate drain pan fS ,) — supply air plenum N — supply air plenum damper(s) — vibration collars Supply air distribution: — Supply air ducts Est. total in ft 9.. _ No. locations inspected 1. Specify type (circle): (__metal } fibrousglass lined metal masonr ++ fibrous glass board flex-duct wow — Accessible in-line fire dampers Est. total qty No. locations inspected — Accessible turning vanes Est. total qty No. locations inspected — In-line reheat/cooling coils Est, total qty No. locations inspected — Supply air diffusers Est. total qty No. locations inspected Return air distribution: — Return air ducts Est. total In R D, No. locations inspected Specify type (circle): fibrous glass lined metal das y fibrous glass board Q flex-duct wo — Return air plenum Est. total RA plenum areas N No. locations inspected N~ — Return air plenum damper Est. total qty No. locations inspected - Accessible in-line fire dampers Est. total qty No. locations inspected j) — Accessible turning vanes Est. total qty No. locations inspected tif) — Return air grilles Est. total qty No. locations inspected fit

NYC-WTC 000135544