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Prior Chicago Building Code
BUILDING CODE AND RELATED EXCERPTS OF THE MUNICIPAL CODE OF CHICAGO
DIVISION 1 - ADMINISTRATION
DIVISION 2 - DEFINITIONS
DIVISION 3 - USE AND OCCUPANCY CLASSIFICATIONS
DIVISION 4 - SPECIAL DETAILED REQUIREMENTS BASED ON USE AND OCCUPANCY
DIVISION 5 - GENERAL BUILDING HEIGHTS AND AREAS
DIVISION 6 - TYPES OF CONSTRUCTION
DIVISION 7 - FIRE-RESISTANCE-RATED CONSTRUCTION
DIVISION 8 - INTERIOR FINISHES (NA)
DIVISION 9 - FIRE PROTECTION SYSTEMS
CHAPTER 15-16 FIRE PROTECTION EQUIPMENT
ARTICLE I. FIRE PROTECTION (15-16-010 et seq.)
ARTICLE II. FIRE PROTECTION EQUIPMENT (15-16-170 et seq.)
PART 1. STANDARD SPRINKLER SYSTEMS (15-16-170 et seq.)
15-16-170 Definition of system.
15-16-180 Other definitions.
15-16-190 Permit and fees.
15-16-200 Installation certification.
15-16-210 Inspections.
15-16-220 Notice of defective conditions.
15-16-230 Requirements for light hazard occupancies.
15-16-240 Requirements for extra hazardous occupancies.
15-16-250 Requirements for special systems.
15-16-260 System tests.
15-16-270 Water supply requirements.
15-16-280 Use of pressure tank for other services.
15-16-290 Gravity tanks.
15-16-300 Pressure tanks.
15-16-310 Fire pumps.
15-16-311 Test manifold.
15-16-320 Supply to tanks.
15-16-330 Filling pipe.
15-16-340 Small equipment.
15-16-350 Location and arrangement of sprinklers.
15-16-351 Display booths.
15-16-360 Sprinklers.
15-16-370 Sprinkler piping.
15-16-380 Piping supports.
15-16-390 Siamese connections.
15-16-400 Valves.
15-16-410 System drainage.
15-16-420 Hand hose connections.
15-16-430 Protection against freezing.
15-16-440 Protection against corrosion.
15-16-450 Test pipes.
15-16-451 Test pipes for high-rise buildings.
15-16-460 Dry pipe systems.
15-16-470 Dry pipe system capacity limits.
15-16-480 Quick opening devices.
15-16-490 Non-freezing systems.
15-16-500 Gauges.
15-16-510 Relief valves.
15-16-520 Painting or finishing.
15-16-530 Alarms.
15-16-540 Spare sprinklers.
15-16-550 Reserved.
15-16-560 Reserved.
15-16-570 Reserved.
15-16-580 Reserved.
15-16-590 Reserved.
15-16-600 Hydraulically calculated sprinkler systems.
15-16-601 Residential sprinklers.
15-16-610 Retroactivity.
15-16-611 Carbon dioxide extinguishing systems.
PART 2. STANDARD FIRE EXTINGUISHERS (15-16-620 et seq.)
PART 3. STANDARD INSIDE STANDPIPE SYSTEMS (15-16-710 et seq.)
PART 4. STANDARD FIRE ALARM SYSTEMS (15-16-1200 et seq.)
PART 5. SPRINKLER SYSTEMS - ADDITIONAL PROVISIONS (15-16-1520 et seq.)
DIVISION 10 - MEANS OF EGRESS
DIVISION 11 - ACCESSIBILITY
DIVISION 12 - INTERIOR ENVIRONMENT
DIVISION 13 - ENERGY EFFICIENCY AND ENVIRONMENTAL PROTECTION
DIVISION 14 - EXTERIOR WALLS (NA)
DIVISION 15 - ROOF ASSEMBLIES AND ROOFTOP STRUCTURES (NA)
DIVISION 16 - STRUCTURAL DESIGN
DIVISION 17 - STRUCTURAL TESTS AND SPECIAL INSPECTIONS
DIVISION 18 - SOILS AND FOUNDATIONS
DIVISION 19 - CONCRETE
DIVISION 20 - ALUMINUM (NA)
DIVISION 21 - MASONRY
DIVISION 22 - STEEL
DIVISION 23 - WOOD
DIVISION 24 - GLASS AND GLAZING (NA)
DIVISION 25 - GYPSUM BOARD AND PLASTER (NA)
DIVISION 26 - PLASTIC (NA)
DIVISION 27 - ELECTRICAL
DIVISION 28 - MECHANICAL SYSTEMS
DIVISION 29 - PLUMBING SYSTEMS
DIVISION 30 - ELEVATORS AND CONVEYING SYSTEMS
DIVISION 31 - SPECIAL CONSTRUCTION (NA)
DIVISION 32 - ENCROACHMENTS INTO THE PUBLIC RIGHT-OF-WAY
DIVISION 33 - SAFEGUARDS DURING CONSTRUCTION
DIVISION 34 - EXISTING STRUCTURES
DIVISION 35 - REFERENCED STANDARDS

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15-16-280  Use of pressure tank for other services.
   Pressure tanks shall not be used for any purpose except to supply a sprinkler system, including hand hose attached to the system.
(Prior code §  91-12; Amend Coun. J. 10-30-96, p. 31216, § 1)
15-16-290  Gravity tanks.
   Gravity tanks shall be constructed and installed in accordance with the requirements of the Chicago Building Code in place at the time such construction or installation occurred. Provided, however, that gravity tanks constructed after September 10, 2014, shall be constructed and installed in accordance with N.F.P.A. Standard 22, Standard for Water Tanks for Private Fire Protection, 2013 Edition, as amended. Provided further, that all gravity tanks, regardless of the date of construction or installation, shall be maintained and disassembled in accordance with the latest edition of N.F.P.A. Standard 22, as amended.
(Prior code § 91-13; Amend Coun. J. 10-30-96, p. 31216, § 1; Amend Coun. J. 7-30-14, p. 86203, § 14)
15-16-300  Pressure tanks.
   The materials and construction of tanks under pressure shall be in accordance with the American Society of Mechanical Engineers “Rules for the Construction of Unfired Pressure Vessels”, Section VIII, dated 1986.
   They shall be installed on steel or reinforced concrete supports, located so as to prevent sagging or vibration in the tanks and so as to distribute the load. Each tank shall be provided with a glass water column installed on one end of the tank at such a height that the center of the gauge glass shall be at the normal level of the water in the tank and equipped with automatic safety cocks.
(Prior code §  91-14; Amend Coun. J. 10-30-96, p. 31216, § 1)
15-16-310  Fire pumps.
   Fire pumps and auxiliary equipment, including controllers required to form complete pumping units, shall be of a type designed and developed for sprinkler service. The installation shall comply with NFPA 20-2013. The suction pipe shall be six inches for 500 and 750 gallons per minute pumps and eight inches for 1,000 and 1,500 gallons per minute pumps. The city connection shall be increased two inches if used for both domestic consumption and fire protection demands when the domestic service exceeds two inches.
   In each case the pump used shall be selected to meet the conditions surrounding the installation. The pumping unit shall be designed to develop full capacity at its rated pressure. The design and installation of a pump shall be such that under any flow rate the intake pressure at the pump shall be not less than five pounds per square inch.
   A fire pump shall be automatic in operation. A time delay device set for one minute for each ten horsepower of motor rating but not to exceed seven minutes shall be provided. A separate automatically controlled centrifugal pressure maintenance pump to avoid too frequent starting and stopping of the fire pump shall be provided.
(Prior code § 91-15; Amend Coun. J. 10-30-96, p. 31216, § 1; Amend Coun. J. 9-6-17, p. 55278, Art. VII, § 23)
15-16-311  Test manifold.
   Each fire pump which supplies an automatic sprinkler system shall be provided with a discharge test manifold having one two and one-half inch corrosion resistant valve for each 250 gallons per minute of rated pumping capacity; however, no more than six valves need be provided. The discharge test manifold shall be located on an outside wall in a location which will permit safe discharge and drainage of water.
(Added Coun. J. 10-30-96, p. 31216, § 1)
15-16-320  Supply to tanks.
   A gravity tank used for a sprinkler system shall be supplied with water by a filling pump having a capacity such that the tank can be filled in less than eight hours.
   The pressure tanks shall be supplied with water by a filling pump having a capacity such that the tank can be filled in not mom than four hours and with air by an air compressor having a capacity of not less than 20 cubic feet of free air per minute if of 7,500 gallon capacity or over and 16 cubic feet of free air per minim if under 7,500 gallon capacity. Where the sprinkler system is equipped with both gravity and pressure tanks, one filling pump may be provided for both. Any storage tank used for fire protection purposes when supplied from the city water system shall conform to the piping provisions governing fill lines and overflow pipes for storage tanks prescribed in Chapter 11-8 of this code.
(Prior code §  91-16; Amend Coun. J. 10-30-96, p. 31216, § 1)
15-16-330  Filling pipe.
   The filling pipe to the gravity tank of any system shall be not less than two inches in diameter.
   The water filling pipe to the pressure tanks shall be not less than one and one-half inches in diameter; it shall be run separately from the source of supply with a bronze seat check valve and a renewable disc angle valve provided in the pipe near the tank, the angle valve being placed between the check valve and the tank. The air supply pipe shall be not less than one inch in diameter and shall have a bronze seat check valve and renewable disc angle check valve provided in the pipe near the tank with the angle valve between the tank and check valve. The air supply pipe shall be connected to the tanks above the water level in the tanks.
(Prior code §  91-17; Amend Coun. J. 10-30-96, p. 31216, § 1)
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