HVAC consulting services invoice, NYC WTC site, 2003

NYC 9/11 Public Portal Document 2.1 Central Ventilation Syste risual Inspection Form Page 1 of 2 Ventilation System Identification: AC VN1T 4MN4 t N 4 FROM T1tE ( i toN - o quaOR Ae& - Location: 3 t9O A L AN 5eT P.EWt Area Served: ~c'HM MLZt: -i YEst1ut't ft.A#X C A(l* M 1 'DC N Y i t8t.3Lc -APC- - Associated mechanical room: clean Y N dry Y N stored chemicals/refuse Y N Surface WTC . Component System Components D t// not present [NOTE: if component not present (NP), not found {NF) or inaccessible (1) please Debris Dust . not found indicate in last column]. Present? Present? • Inaccessible Outside air intake: Location:

Accessible for inspection? Y V N (explain):

— louvers, grates and/or screens N — outside air duct — outside air damper(s) Air handling unit: — outside air mixing chamber N F — filter rack(s) — filter media — blower assembly incl blower wheel, blower housing, air vanes, in-line noise attenuators — blower housing acoustical lining — pre-heat coils — heating coils ' — cooling coils — re-heat coils Ip — condensate drain pan — supply air plenum — supply air plenum damper(s) — vibration collars Supply air distribution: — Supply air ducts Est. total In ft 20 No. locations inspected .~ Specify type (circle): fibrous glass lined metal masonxy fibrous alass board flex-duct wo — Accessible in-line fire dampers Est. total qty ( No. locations inspected 1 — Accessible turning vanes Est. total qty_ _ No. locations inspected F — In-line reheat/cooling coils Est. total qty No. locations inspected — Supply air diffusers Est. total qty rI No. locations inspected__, Return air distribution: — =-- — Return air ducts Est.ot tal in ft 20 No. locations inspected

~► Specify type (circle):( ) fibrous glass lined metal rnasomv fibrous glass board

— Return air plenum Est. total RA plenum areas I No. locations inspected i — Return air plenum damper Est. total qty No. locations inspected — Accessible in-line fire dampers Est total qty o2 No. locations inspected o NF — Accessible turning vanes Est total qty ot No. locations inspected V N+ — Return air grilles Est. total qty No. locations inspected_

NYC-WTC 000135448