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NYC Mechanical Code

§ 313.3.7 — § 313.3.7

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What is NYC MC § 313.3.7?

Quick Answer

This section mandates that all moving parts of cooling towers situated on roofs or elevated floors must be installed on vibration isolators with a specified efficiency and deflection. It also requires the inclusion of vibration cutoff switches. Applies to building owners with cooling towers.

General informational summary. Not legal advice for your situation. Consult an attorney before acting on any specific matter.

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313.3.7 Cooling towers and fluid coolers.

MC § 313.3.7

All moving parts of cooling towers located on a roof or floor other than a floor on grade shall be installed on vibration isolators providing a minimum isolation efficiency of 90 percent at fan rotor rpm with a maximum static deflection of 4 inches (101.6 mm). Each isolator shall incorporate a leveling device and a resilient pad having a minimum thickness of 1/4 inch (6.4 mm). Vibration cutoff switches shall be provided.

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