HVAC consulting services invoice, NYC WTC site, 2003

NYC 9/11 Public Portal Document ..a %—enxrai venivanen >vctnr iienal lnenartinn Form Ventila 'on System Identifca

Loc Ntio . OC N - () Std '" /NEST /D Associated mechanical room: clean Y N dry Y N stored cbemicals(refuse Y N Surface Component System Components Dust( WTC • 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 ✓ N (explain):

— louvers, grates and/or screens — outside air duct — outside air damper(s) Air handling unit: — outside air mixing chamber — filt~}er racckk(s) - ~tW DID&

— blower assembly inci. blower wheel, blower housing. air vanes, in-line noise attenuators — blower housing acoustical lining — preheat coils — heating coils — cooling coils — re-heat coils ¼ — condensate drain pan — supply air plenum — supply air plenum damper(s) — vibration collars Supply air distribution: , •.', — Supply air ducts Est. total In ft l7 No. locations iaspected` L_ Specify type (circle): 4 i815 1ined t masonry fl ous class board . -

— Accessible in-line fire dampers Est. total qty No. locations inspected — Accessible turning vanes Est total qty No. locations inspected t'J E — In-line reheat/cooling coils Est. total qty • No. locations inspected t 9 Supply air 3iffusers Est. total qty No. locations inspected_ N Return air distribution: — Return air ducts Est. total In 8 No. locations inspected = Specify type (circle): i 5brousclass lined metal uiaacmv filrous mass board

— Return air plenum Est. total RA plenum areas__ I No. locations inspected_ j_ ~! — Return air plenum damper Est total qty No. locations inspected N {~ — Accessible in-line fire dampers Est. total qty No. locations inspected F — Accessible turning vanes Est. total qty No. locations inspected hF — Return air grilles Est. total qty I. No. locations inspected_ y y

NYC-WTC 000135446