HVAC consulting services invoice, NYC WTC site, 2003

NYC 9/11 Public Portal Document Ventilation System Idents5cation~ -- - • ""• Raavu r vrm Page I of 2 EAST ~'IE4F urr— Location: •, ^ ,. -~, — ,`t~.~ Area Served: "i i' Associated mechanical room: clean I--L fir' --+Cy N dry Y N stored chemic ais/refuse y. N System Components (NOTE: if component not present (NP), Surface Component not found (NP) or inaccessible (I) • not present Indicate in last column] please Debris t • not found Outside air intake: Present? Present? Location: • inaccessible

Accessible for inspection? Y N (explain): — louvers, grates and/or screens — outside air duct '3 — outside air damper(s) Air handling unit: — outside air mixing chamber — filter racks) — filter media — blower assembly incl. blower wheel, blower housing, air vanes, in-line noise — blower housing acoustical lining attenuators — 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 ft No. locations inspected_ Specify type (circle): me fibrous glass ;*+Pd metal aco fInous glassboard ._ ftex çt yQ — Accessible in-line fire dampers Est, total qty No. locations inspected e — 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 Zs No. locations inspected CI I Return air distribution: — Return air ducts Est total In ft No. locations inspected l Specify type (circle): 11 flInous class lined zne asom bus class bq flex ' ,J — Return air plenum Est total RA plenum areas I No. locations inspected [_ iV — Return air plenum damper Eat total qty __ No. locations inspected — Accessible in-line fire dampers Est total qty No. locations inspected — Accessible turning vanes Est. total qty No. Locations inspected — Return air Imes Est. 'total qty No. locations insoectea I

NYC-WTC 000135512