904.12 Commercial cooking systems.
BC § 904.12
The automatic fire-extinguishing system for commercial cooking systems shall be of a type recognized for protection of commercial cooking equipment and exhaust systems of the type and arrangement protected. Preengineered automatic wet-chemical extinguishing systems shall be approved by the Fire Commissioner, tested in accordance with UL 300, and listed and labeled for the intended application. The protected area shall include the area under the hood and over the cooking equipment, the area above or behind the filters and the opening of the hood into the branch duct. Where a preengineered system is installed and the size of the protected area exceeds that allowed for a single preengineered system, additional pre-engineered systems arranged for simultaneous operation shall be provided. Other types of automatic fire-extinguishing systems shall be listed and labeled for specific use as protection for commercial cooking operations. The system shall be installed in accordance with this code, its listing and the manufacturer's instructions. Only automatic fire-extinguishing systems of the following types shall be installed in accordance with the New York City Fire Code: 1. Foam water sprinkler system or foam water spray systems.
2.Wet-chemical extinguishing systems. Automatic sprinkler systems, dry-chemical fire-extinguishing systems, and carbon dioxide fire-extinguishing systems shall not be installed to protect commercial cooking equipment and exhaust systems.
