Section BC 903: Automatic Sprinkler Systems
903.1 General.
Automatic sprinkler systems shall comply with this section. Installation of automatic sprinkler systems shall comply with the special inspection requirements of Chapter 17.
903.1.1 Alternative protection.
Where permitted by the New York City Fire Code, the Fire Department may approve the installation of alternative automatic fire-extinguishing systems complying with this code and the New York City Fire Code in lieu of automatic sprinkler protection.
(Am. L.L. 2018/195, 12/1/2018, eff. 5/30/2019)
Editor's note: For related unconsolidated provisions, see Appendix A at L.L. 2018/195.
903.1.2 Construction documents.
Construction documents for automatic sprinkler systems shall contain plans that include the following data and information:
1. The location and size of water supplies and the location, number, and type of sprinkler heads to be used, with approximate location and size of all feed mains, valves and other essential features of the system. For hydraulically calculated systems, hydraulic data substantiating pipe sizes shown shall be submitted and hydraulic reference points and areas must be indicated on the plan. If any other methods are utilized to size the sprinkler system and its components, as allowed by NFPA 13, supporting documentation shall be submitted to the department.
2. A diagram showing the proposed sprinkler system in relation to principal construction features of the building, such as its size, walls, columns, and partitions; and such other information as may be necessary for the evaluation of the system.
3. The location, number, and type of any electrical or automatic devices or alarms to be used in the system.
4. In buildings where a new separate fire sprinkler system is required, the available water pressure at the top and bottom floors of each zone shall be shown on the riser diagram.
5. For street pressure-fed systems and fire pumps, a statement from the New York City Department of Environmental Protection, giving the minimum water pressure in the main serving the building.
903.2 Where required.
Approved automatic sprinkler systems in new buildings and structures shall be provided in the locations described in Sections 903.2.1 through 903.2.13.
Exceptions:
1. Sprinklers shall not be required in electrical equipment rooms where all of the following conditions are met:
1.1. The room is dedicated to electrical equipment only.
1.2 Only dry-type electrical equipment is used.
1.3 Equipment is installed in a 2-hour fire-rated enclosure including protection for penetrations.
1.4 No combustible storage is permitted to be stored in the room.
2. Sprinklers shall not be permitted in elevator machine rooms and elevator machinery spaces.
3. Sprinklers shall not be required in rooms and spaces protected by an alternative fire suppression system in accordance with the New York City Fire Code and Section 904 of this code.
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