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NYC Mechanical Code

§ 506.5.6 — § 506.5.6

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What is NYC MC § 506.5.6?

Quick Answer

This section outlines the operational requirements for exhaust fans in relation to extinguishing systems. It mandates that exhaust fans continue to operate after the extinguishing system is activated, unless otherwise specified. Applies to building owners with cooking appliances that must comply with ventilation system standards.

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

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506.5.6 Exhaust fan operation.

MC § 506.5.6

The operation of the exhaust fan shall be in accordance with the following requirements: 1. The hood exhaust fan(s) shall continue to operate after the extinguishing system has been activated unless fan shutdown is required by a listed component of the ventilation system or by the design of the extinguishing system.

2.The hood exhaust fan shall not be required to start automatically upon activation of the extinguishing system if the exhaust fan and all cooking equipment served by the fan have previously been shut down.

3.The cooking appliances shall be interlocked with the exhaust hood system to prevent appliance operation when the exhaust hood system is not operating.

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