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20.08.049 <br />Not Exceeding twelve thousand <br />square feet (12,000 square feet) shall <br />be as follows: <br />402.2.1 The number of design <br />sprinklers shall be the hydraulically <br />most remote six (6) sprinklers above <br />or below the ceiling. When a com- <br />mon fire sprinkler and domestic <br />water supply is provided, the fire <br />sprinkler calculation shall include the <br />simultaneous domestic flow of five <br />(5) gallons per minute per dwelling <br />unit. This domestic flow shall be <br />calculated at the base of the riser. <br />Exception: This standazd does not <br />include hotels, motels, or day caze <br />centers with more than twelve (12) <br />occupants. <br />402.2.2 Sprinklers shall be provid- <br />ed in attics and between floors where <br />floor/ceiling assemblies consist of <br />open web wood joists or trusses. <br />Exception: Townhouses with ap- <br />proved one-hour sepazations at the <br />property line shall have pilot sprin- <br />klers per 402.1.2. <br />402.3 Water Demand <br />The water demand for the system <br />shall be determined by multiplying <br />the design azea of the largest com- <br />partment by the specified applica- <br />tion rate. Additional demand may <br />be required for domestic use as <br />specified in 9.401 and 9.402. <br />Sec. 9.403 Sprinkler Coverage <br />403.1 Residential sprinklers shall be <br />spaced so that the maximum area <br />protected by a single sprinkler does <br />not exceed 144 squaze feet (13.4 m) <br />or in accordance with the sprinkler <br />listing. <br />403.2 The maximum distance be- <br />tween sprinklers shall not exceed <br />listed distance of the fire sprinkler on <br />or between pipelines, or minimum <br />distance between sprinklers within a <br />compartment shall be 8 feet. <br />403.3 The minimum operating pres- <br />sure of any sprinkler shall be in <br />accordance with the listing informa- <br />tion of the sprinkler and provide the <br />minimum flow rates specified in <br />9.401. <br />403.4 Application rates, design <br />areas, areas of coverage, and mini- <br />mum design pressures other than <br />those specified in 9.401, 9.403.1, <br />9.403.2 may be used with special <br />sprinklers which have been listed for <br />such specific residential installation <br />conditions. <br />Sec. 9.404 Positions <br />404.1 Pendent and upright sprinklers <br />shall be positioned so that the deflec- <br />tors aze within 1 to 4 inches. (15.4 to <br />102 mm) from the ceiling. <br />Exception: Special residential <br />(Pleasanton April 2000) ']~~_g <br />