HVAC consulting services invoice, NYC WTC site, 2003

NYC 9/11 Public Portal Document &..a a.auaiaa V VUIU1(J011 DVSL VIttl9I IfanPrtinn Fnrm ... xto--- - -A-^ Ventilation System Identificatipn - ------ - -- ` 1 °I .S k1L •- G pt,tT t)N tT• Location: Area Served: UVIP R - oo ie LL, Associated mechanical room: clean Y N dry_Y N stored chemicals/refuse Y N System Components Surface Component Dust/ WTC . not present [NOTE: If component not present (NP), not found (NI) 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 '9 — outside air duct — outside air damper(s) Air handling unit: — outside air mixing chamber l — 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 — condensate drain pan — supply air plenum •./ — supply air plenum damper(s) — vibration collars Supply air distribution: — Supply air ducts Est. total In R 5C) No. locations inspected ~+ Specify type (circle) glass ' masop y fibrous glass board flex-duct v — Accessible in-line fire dampers Est. total qty d2 No. locations inspected O is F — Accessible turning vanes Est. total qty No. locations inspected O K — Inline reheat/cooling coils Est, total qty No. locations inspected N7 ~. — Supply air diffusers Est. total qty No. locations inspected~ _ : jJ Return air distribution: — Return air ducts Est. total In ft 2 C3 No. locations inspected Specify type (circle): et • fibrous glass lined metal eus ,+ fibrous glass board flex-duct — Return air plenum Est. total RA plenum areas„b_ No. locations inspected — Return air plenum damper Est. total qty No. locations inspected i — Accessible in-line fire dampers Est. total qty 02. No. locations inspected O — Accessible turning vanes D p. F Est total qty No. locations inspected__ — Return air grilles Est, total qty L No. locations inspected

NYC-WTC 000135450