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HVAC compliance memo, Mayor's Office of Emergency Management, Apr 1998

Machine-extracted title · confidence 95%

Memo requesting verification that a 6000-gallon tank installation meets NYC code clearance requirements.

NYC-WTC_000167817–000167819

Folder label: “General Design Review Comments

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NYC 9/11 Public Portal Document

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zaMl Dep’t Citywide Administrative Services To: Glenn Pymento Sheet 1 of 3 A: Incorporated Contract Number: Consultant: Consentini Ass. B:Not Inc^^ijorated Description: Mayor's Office Of Emergency 100 % Submittal Management. explanation) Reviewer: JOSEPH Title Mechanical Date: 4/17/98 C: Clarification MENASCE, PE Engineer. II Required COWENT Dwg. No/ No. Spec. Po. Comments

_____________________________ HVAC_____________________________ 1 A-l-l Please verify that the 6000 gal tank can be brought inside the building, rigged in place, that there is enough room for the welder to work, that it is in compliance with NYC code section 27-829 which requires a 15" clearance all around tank and that it is in compliance with NYS code. Subchapter B, part 1002._______________________________________________________ 2 A-l-l Note #1: Water line is shown on-the plumbing drawing.__________________ 3 Ml.Ol 1. What protection is provided against fill pump cavitation in the illustrated fuel oil diagram? 2. Specify the size of the day tank on the drawings or in section 15190. Specify the make and model of the circulating pump for the generators. 3. Shouldn't the vent line for the new emergency fuel tank be higher than the tank? 4. Shouldn't the fuel oil return from the day tank be drained to the new storage tank? 4 Ml.07 Verify with the Generator manufacturer the required opening to air cool the units?__________________________________________________________ 5 M-1.23 I. Are the Air Handlers in the building serving the 23rd floor on emergency generators as well? 2. Specify the make, model and size of the cooling towers. 3. Clarify in the schematic diagram the location of the backflow preventers to supply make up water to the cooling towers. 4. Verify the need to have exhaust fans for the other conference rooms, like the one facing Versey Street. 5. Clarify the need to provide fresh air intake to AC-4 &5. Describe how to achieve free cooling.

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NYC-WTC_000167817

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