HVAC Inspection Report 330 [name], Nov 2002

NYC 9/11 Public Portal Document •. .:. {• ; .• _ SCOPE O Other Iafor#nation: Unit cycled nor to Inspection Colgr. Qf dust/ irt/debns' Filter loading (general pression) ' >' Waterdamage ••Fi fgr bypass (describe) 'Visible¢uapt:ct tndld growth . Abt aded/delaminated acoustical lining D Evidence of imunalincursiori (carcasses, feathers, fecal matter General Impression:

2.2 Fan 'coil! heat pump units in common spaces

Ventilation Syster#s'Identification: Location: .' ' Access adequate fo} inspection of components:

= • Dust/Dtrt/Debrls_ Susp t \VTC-Related Dust • System Component on "' Light Heavy • Substrate hMaterial' Present?: );st1.tnate % of total dust (<1/16 inch (~ 1/16 inch .(YIN) loading (sheet ritetal gapped) depth) depth System Components (sheet metal'lined) • (fiberglass). (flexible connector) (double walled) ' Return air grille .Return -air plenum Fi tenfack Filter media Blower. assembly . . • Thermal coils ' Supply air plenum- •

Supply air diffuser' Informat#on: . rJ •Other

Unit cycled prior.to inspection . Color of Dust/DirtlDebris 'Filter loading (general •impression) stet damage Filter bypass (describe) Visible suspect mold growth.. Abraded/delaminated acoustical lining Evidence, of animal incursion (carcasses, feathers, fecal matter) • GenerallmpressIon: '

23 .. Central ventilation systems

Ventilation System Identification: .

Location: • Area ,Served: Mechanical room: clean Y dry H• Y N stored chemicals/refuse .Y _N . Access adequate for inspection of components: . • • • . ABU interior surfaces are visibly accessible: ' .

NYC-WTC 000132755