Residential Multipurpose Fire Sprinkler Systems - City of Bonney Lake

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14. Sprinkler discharge shall not be blocked by obstructions unless additional sprinklers are installed to protect the obstructed area. Sprinkler separation from obstructions shall comply with the minimum distances specified in the sprinkler manufacturer's instructions. 15. Pendent sprinklers within 3 feet of the center of a ceiling fan, surface-mounted ceiling luminaire or similar object shall be considered to be obstructed, and additional sprinklers shall be installed. 16. Sidewall sprinklers within 5 feet of the center of a ceiling fan, surface-mounted ceiling luminaire or similar object shall be considered to be obstructed, and additional sprinklers shall be installed. 17. A means to drain the sprinkler system shall be provided on the system side of the water distribution shutoff valve. 18. Sprinklers shall be installed to protect all areas of a dwelling unit. Exceptions: a. Attics, crawl spaces and normally unoccupied concealed spaces that do not contain fuel-fired appliances do not require sprinklers. In attics, crawl spaces and normally unoccupied concealed spaces that contain fuel-fired equipment, a sprinkler shall be installed above the equipment; however, sprinklers shall not be required in the remainder of the space. b. Clothes closets, linen closets and pantries not exceeding 24 square feet in area, with the smallest dimension not greater than 3 feet and having wall and ceiling surfaces of gypsum board. c. Bathrooms not more than 55 square feet in area. d. Carports; exterior porches; unheated entry areas, such as mud rooms, that are adjacent to an exterior door; and similar areas. e. Garages without warm ceilings (room above) need only have one sprinkler covering the garage/house door. II. Plan submittal. 1. Provide floor plan scaled drawing (1/4” = 1’) showing all of the following: a. Size/type of sprinkler heads. b. Location/coverage of sprinkler heads. c. Size/type of sprinkler piping. d. Complete isometric diagram of water piping system including sprinkler heads. e. Drainage fixture units of all fixtures including sprinkler heads. f. Type and location of all valves check valves, shutoff valves, et cetera. Note: Backflow prevention devices are not required on this type of system. Stand alone systems are not allowed per BLMC 13.04.110 M #1 g. Exterior bell or horn and strobe on address side and audibility on the inside (smoke alarms). h. Size/type of sprinkler heads. i. Two family units require a separate meter for each unit (Each sprinkler system shall not serve more than one dwelling). No exceptions. C:\JH\2011\Handouts 2 rev. 2/14/11
j. All products used for the fire sprinkler system shall be new and listed as required by NFPA 13D and WAC 51- 51-60105 k. The fire sprinkler system shall be installed per NFPA 13 D and WAC. 51-51-60105 l. Minimum of 1” meter and 1 ½” service line to the building is required (see exception to #3 in common questions below). III. Rough Inspection. 1. All system components shall be in place at the time of rough pipe inspection. 2. Tenting insulation is required for all fire sprinkler piping that is installed in the attic space. 3. Bucket test will be required for the two most remote heads flowing at the same time. Note: No part of the system shall be covered until it has been inspected and approved. IV. Final Inspection. 1. The system shall be in service at the time of final inspection. 2. All heads and escutcheons shall be in place. 3. On completion of the final, all handles shall be removed or locked in place. Exception: Monitored systems. 4. A warning sign, with minimum ¼” letters, shall be affixed adjacent to the main shutoff valve and shall state the following: “Warning: The water system for this home supplies fire sprinklers that require certain flows and pressures to fight a fire. Devices that restrict the flow or decrease the pressure or automatically shut off the water to the fire sprinkler system, such as water softeners, filtration systems, and automatic shutoff valves, shall not be added to this system without review of the fire sprinkler system by a fire protection specialist.” DO NOT REMOVE THIS SIGN V. Common Questions for Residential Sprinkler Systems. Note: If you have a question you believe would benefit others, and would like it added to this list please email them to the Building Official Jerry E Hight at hightj@ci.bonney-lake.wa.us. 1. Are we required to have the residential sprinkler system monitored No. Instead, we require a bell or horn and strobe on address side of your home (see item II g above). The reason is to make sure if the system activates and you are not home, someone will see, or hear the alarm and alert authorities. 2. Are we required to install a backflow device on the residential sprinkler system No. The reason is that you are installing a complete flow through system. Therefore, the domestic water used for your home also flows through the sprinkler system. 3. What is the meter size that we are required to install for a residential sprinkler system C:\JH\2011\Handouts 3 rev. 2/14/11
Page 1: City Hall “The city of Bonney Lak
Page 5: Yes. This is in addition to the ext

Residential Multipurpose Fire Sprinkler Systems - City of Bonney Lake

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