HVAC consulting services invoice, NYC WTC site, 2003

NYC 9/11 Public Portal Document •.. A ..,~ULJ a, .- cnuiaiion system visual Inspection Form Ventilation System Identification: Page 1 of 2

Local Area Served• Associated mechanical room: clean Y N dn• Y N stored chemicals/refuse Y N System Components Surface Component NOTE: if component notpresent (NP , not found (NF) or Dust! WT Dust • not present inaccessible (Il) please Debris Dust • not found indicate in last column] Present? Present? Outside air intakes T ..,.e.:..... • inaccessible

i Accessible for inspection? Y ✓ N (explain):

— Iouvers, grates and/or screens — outside air duct — outside air damper(s) Air handling unit: — outside air mixing chamber — filter rack(s) — filter media N` — blower assembly incl: blovker wheel, blower housing, air vanes, in-line noise attenuators — blower housing acoustical lining — pre-heat coils — heating coils t NQ — cooling coils lJ — re-heat coils — condensate drain pan — supply air plenum — supply air plenum damper(s) — ibration collars N Supply air distribution: — Supply air ducts Est. total in ft ..,,3Q No. locations inspected 1 Specify type (circle): etal ous lass lined meta masonry fibrous glass board ex u w '/ — Accessible in-line fire dampers Est. total gty i No. locations inspected T ~- - Accessible turning vanes Est. total qty t No. locations inspected I — In-line reheat/cooling coils Est. total qty 1 No. locations inspected t — Supply air diffusers Est, total qty No. locations inspectedt Return air distribution: — Return air ducts Est. total In ft 0 No. locations inspected________ Specify type (circle): n to fibrous glass ' ed me t_riasoiw fibrous glass board flex-du v► i t — Return air plenum Est. total RA plenum areas_ No. locations inspected !_ — Return air plenum damper Est. total qty No. locations inspected i — Accessible in-line fire dampers Est. total qty, I No. locations inspected_ — Accessible turning vanes Est. total qty Z t_ No. locations inspected — Return air grilles Est. total qty I No. locations inspected -.t

NYC-WTC 000135480