HVAC Verification Form, 7 World Trade Center, April 1998

NYC 9/11 Public Portal Document r. via .. inoiin^jffniint hinal Submiual

6 M-4.01 • Please correct the cooling loads' typographical error for AC-1 SuT------ ♦ Complete ventilation index. * Will the motor for the exhaust fan EF«S ed to be explosion proof? 7 Section Paragraph 1.4: Identify shut off valves VI ihr 14 on the drawings. Wh^---- ' I5U0 the butterfly and check valves arc being usedTy 8 Section Paragraph 1.4: The abbreviation of fusible linl: dampers (FLD) do not 15120 correlate with drawings (ALP). _____ 9 Section - paragraph 1.1 item F. ’ 15150 » Edit paragraph 1.2 item A. .

.________________ Fire protcctiott_______ 1 FPLOl Please verify the need to provide fire protcctim l for the 6 Gal Fuel Oil Tank in accordance with NYS code, Subefaaptty B, Pert 1002,7. 2 FP2.07 Verify the need to provide thermal detectors in the emergency dl'Sd ~ generators room to close off the Fresh Air Intal e and exhaust in case of fire. 3 FPS^3 1. is there a necd'for a preaction sprinkler syst for the A/V room? ~ 2. Verify the need to provide sprinklers he^ ih the electrical closet adjacent to elevator shaft PE-18 and stairway. This oon contains a 112.5K.VA transformer. 3. Verify the di stances between ^>rinklers in the Mechanical Room and the watch command areas. 4. Verify the need of the inspector’s test connedtioa at the end of the sprinkler system. S. Show the drain lines for the preactionsystcc 3._______ _________■ ■ 4 What measure of fire protection is provid^ for me radio room on Ae roofT"

_______________________ PLUMBING____________________ 1 P2.07& What provision Is made to minimize disruption o tenants when the cold P5.23 water riser will be installed or when the drain lin ss will be nm below flicir su^>eoded ceilings. 2 P3.23 Indicate the location of the backflow preventer ft r the two cooling towers. 3 Section Where do you use a submersible pump? If that u the sump pump for the 15445 tank room what size reservoir is required.

______________ Ekctricad _________ 1 General ♦ Indicate the motor horsepower for each motoil symbol, • Are meters required? • Complete the riser diagram; indicate the loads being served from each panel and the size of the breakers. • Indicate the transformers' type of connection voltages as well as their primary switches and fuses. • Can the oil fill pump, the water tank fill pump and the exhaust fanEF'5 on the 1st floor, be activated from the dual ci ic power supply. « Show the automatic power transfer distribution to the existing pneumatics controls and to the Air Handling uric serving the 23rd floor. ♦ Show circuit breakers panel schedule.___________________ _____

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