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// CODE SNIPPET

[F] 903.3.8 Limited Area Sprinkler Systems

Building Code 2018 of Illinois > 9 Fire Protection and Life Safety Systems > 903 Automatic Sprinkler Systems > 903.3 Installation Requirements > 903.3.8 Limited Area Sprinkler Systems
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Limited area sprinkler systems shall be in accordance with the standards listed in Section 903.3.1 except as provided in Sections 903.3.8.1 through 903.3.8.5.

903.3.8.1 Number of Sprinklers

Limited area sprinkler systems shall not exceed six sprinklers in any single fire area.

903.3.8.2 Occupancy Hazard Classification

ILLUSTRATION
Only areas classified by NFPA 13 as Light Hazard or Ordinary Hazard Group 1 shall be permitted to be protected by limited area sprinkler systems.

903.3.8.3 Piping Arrangement

Where a limited area sprinkler system is installed in a building with an automatic wet standpipe system, sprinklers shall be supplied by the standpipe system. Where a limited area sprinkler system is installed in a building without an automatic wet standpipe system, water shall be permitted to be supplied by the plumbing system provided that the plumbing system is capable of simultaneously supplying domestic and sprinkler demands.

903.3.8.4 Supervision

Control valves shall not be installed between the water supply and sprinklers unless the valves are of an approved indicating type that are supervised or secured in the open position.

903.3.8.5 Calculations

Hydraulic calculations in accordance with NFPA 13 shall be provided to demonstrate that the available water flow and pressure are adequate to supply all sprinklers installed in any single fire area with discharge densities corresponding to the hazard classification.

Related Code Sections


903.3.8 Fire Protection and Life Safety Systems, Limited Area Sprinkler Systems
Limited area sprinkler systems shall be in accordance with the standards listed in Section 903.3.1 except as provided in Sections 903.3.8.1 through ...
Building Code 2021 of Illinois > 9 Fire Protection and Life Safety Systems > 903 Automatic Sprinkler Systems > 903.3 Installation Requirements > 903.3.8 Limited Area Sprinkler Systems
903.3.8 Fire Protection and Life Safety Systems, Limited Area Sprinkler Systems
Limited area sprinkler systems shall be in accordance with the standards listed in Section 903.3.1 except as provided in Sections 903.3.8.1 through ...
Building Code 2018 of Illinois > 9 Fire Protection and Life Safety Systems > 903 Automatic Sprinkler Systems > 903.3 Installation Requirements > 903.3.8 Limited Area Sprinkler Systems
903.3.8.2 Fire Protection and Life Safety Systems, Occupancy Hazard Classification
Only areas classified by NFPA 13 as Light Hazard or Ordinary Hazard Group 1 shall be permitted to be protected by limited area sprinkler systems ...
Building Code 2018 of Illinois > 9 Fire Protection and Life Safety Systems > 903 Automatic Sprinkler Systems > 903.3 Installation Requirements > 903.3.8 Limited Area Sprinkler Systems > 903.3.8.2 Occupancy Hazard Classification
903.3.8.5 Fire Protection and Life Safety Systems, Calculations
all sprinklers installed in any single fire area with discharge densities corresponding to the hazard classification ...
Building Code 2021 of Illinois > 9 Fire Protection and Life Safety Systems > 903 Automatic Sprinkler Systems > 903.3 Installation Requirements > 903.3.8 Limited Area Sprinkler Systems > 903.3.8.5 Calculations
903.3.8.5 Fire Protection and Life Safety Systems, Calculations
all sprinklers installed in any single fire area with discharge densities corresponding to the hazard classification ...
Building Code 2018 of Illinois > 9 Fire Protection and Life Safety Systems > 903 Automatic Sprinkler Systems > 903.3 Installation Requirements > 903.3.8 Limited Area Sprinkler Systems > 903.3.8.5 Calculations
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