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What is NYC MC § 506.3.2.4?

Quick Answer

This section outlines the requirements for vibration isolation connectors used to connect ducts to fans. It specifies that these connectors must consist of noncombustible packing in a metal sleeve joint or a coated-fabric flexible duct connector that is approved for the application. Applies to building owners installing duct systems connected to fans.

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

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506.3.2.4 Vibration isolation.

MC § 506.3.2.4

A vibration isolation connector for connecting a duct to a fan shall consist of noncombustible packing in a metal sleeve joint of approved design or shall be a coated-fabric flexible duct connector listed and labeled for the application. Vibration isolation connectors shall be installed only at the connection of a duct to a fan inlet or outlet.

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