HVAC consulting services invoice, NYC WTC site, 2003

NYC 9/11 Public Portal Document 2.1 Central Venililasin Form 1 of2

Associated mechanical ro•nn. dean Y N dry Y 14 '•~ A ~= Tq N diL~ E stored chemicalsfref Y N System Components [NOTE: If component am:t present (NP), net found (NY) Surface Component flnstl indicate in last co#umnj or Inaccessible (I) please DW •• not present Outside air intake: Present? Present? . not found Location: h,accesatblc Accessible for inspectioni Y N (explain): - louvers, grates and/or screens y N - outside air duct 1J - outside air damper(s) Air handling unit: ~ - outside air nixing cha:nber - filter racks) - filter media - blower assembly ind. 'slower wheel, blower housing, air vanes, intine noise attenuators Y - blower housing acoust ,al lining - Preheat coils NJ - heating coils ' - Cooling coils N - reheat coils - condensate drain pan ~i P • - supply air plenum - Supply air plentnn dampers) - vibration collars Supply air distribution: - Supp1} air ducts Est. to al In ft u^ J No. locations inspected 1 Specify type (circle)~te fibrous eIass ;ned metalh„AcoT,,, sous ass h - Accessible in-line fire dazxpers board

N Est total qty Z No. locations inspected 0 - Accesssble tunoirig vanes N Est. total qty No. locations inspected - In-line reheat/cooling coils Est total qty No. locations inspected' - Supp ' air difinsers Est. total qty 2 No. locations P Return air d +stribution: inspected 2 y - Retum air ducts Et tgtjiinft -, ~.._. No. loc on~s~mspec d 2 Specid3'type (circle): , ~!} _ pFo is la s 7TPf} ~na~Dt ~. Y ~ } i Meson s ifl s -

- Return air plenum Eat total RA plenum areas( No. locations inspected 1 - Return air plenum damper Est. total qty' No. Iocations inspected` - Accessible in-line fire dampers Est, total qty No. locations inspected p Accessible turning vanes - Eat. total qty No. locations inspected -: Return air gri ers —~ - total qty No. locations insPected~.-.... a

NYC-WTC 000135409