HVAC consulting services invoice, NYC WTC site, 2003

NYC 9/11 Public Portal Document - ---- - --- rit v1UiL Ventilation System Identification: ONE Location: ' () Area Served: R,,, •- ' ' " 3€ Gfk u ACE Lt Associated mechanical room: clean_ ,/Y N chy Y N stored chemicals/refuse Y✓ N System Components Surface Component Dust/ WTC . not present [NOTE: if component not present (NP), not found (NIA) or Inaccessible (I) please Debris Dust indicate In last column] • not found Present? Present? . inaccessible Outside air intake: Location:

Accessible for inspection? Y_/N (explain):

— louvers, grates andlor screens — outside air duct — outside air damper(s) Air handling unit: td P — outside air mixing chamber — filter rack(s) — filter media — blower assembly inci. blower wheel, blower housing, air vanes, in-line noise attenuators — blower housing acoustical lining h — preheat coils hi — heating coils }7 h — cooling coils — re-heat coils — condensate drain pan ~► — supply air plenum — supply air plenum damper(s) S H1P — vibration collars h }' Supply air distribution: —,Supply air ducts Est. total In R_ 1--f No. locations inspected Specify type (circle). ; ~ fibrous lass lined met1 taasomv fibrous glass board nex-duct `vpg — 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 Z No. locations inspected__J___ Return air distribution: — Return air ducts Est. total In ft 4 No. locations inspected 2 - Specify type (circle): fibrous glass lined metal masosnv fibrous glass board & flex-duct — Return air plenum Est total RA plenum areas I No. locations inspected,—, j_ — Return air plenum damper Est. total qty No. Iocations inspected ti — Accessible in-line fire dampers Est. total qty No. locations inspected — Accessible turning vanes Est. total qty No. locations inspected — Return air grilles Est. total qty No. locations inspected N

NYC-WTC 000135508