HVAC Verification Form, 7 World Trade Center, April 1998

NYC 9/11 Public Portal Document

H Dep^t Citywide Administrative Services To; Olenn Pymento Sheet 1 of 3 A: Incorpora Contract Number: Consultant: Consentini As;. B-.Kot EJescription: Mayor’s Office Of Emergency 100 %Submiral Management cxplanatioii} Rc\icwcr; JOSEPH Title Mcchanicai Cb-tc; 4/17Z9B C:Clarificat* MENASCE, PE Engineer. Required CoocEir Pkg; . No/ Comments No. S?BC. Pg .

_____________ _____________ HVAC_______________ _ 1 A-1-1 Please verify that the 6000 gal tank can be brou^ ht inside the building. rigged in place, that there is enough room for the 'iVr'clder to work, that it is tn compliance with NYC code section 27-&29 whic h rKjuires a 15" dearancc all around tank and thai it is in compliance with' 'fYS code, Subchaptcr B, part lO(g._____________ _______ ________________________________ 2 A-1-1 Note Water line is shown op-d^ plumbing (hawing.- 3 MI.01 1. What protection is provided against fill pump cavitation in the illustrated fuel oil diagram? 2. Specify the size of&e day tank on the drawirgs or in section 15190. Specify the make and model of the circulatinj; pump for the generators. 3. Shouldn't the vent line for the new emergency'fuel tank be higher than ihetank? 4. Shouldn't the fuel oil return from the day tank be drained to die new storage tank?____________________ | _ 4 M1.Q7 Verify ^tii the Generator raanufechirer the requu^ opening to air cool the” units? 5 1. Arc the Air Handlers in the building serving 23rd floor on emergency gercrators as well? 2. Specify the inake> «55del and size of the coolh j towers. 3. Clarify in the schematic diagram the location r f the backflow preventers to supply make up water to the cooling towers 4. Verify the need, to have exhaust fans for the otTCT conference rooms, like the one facing Verscy Street. 5. Clarify the need to provide fresh air intake to aC-4 <£5. Describe how to achieve free cooling. ___ _

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