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A-PEX Design Services Inc. Page 1 <br />GRAYSON TH BLDG J UNIT 60 -Tm Head Calculation (H.7 & H.10) Date 4l5/2023 <br />HYDRAULIC DESIGN INFORMATION SHFF.P <br />Name - GRAYSON TH BLDG J UNIT 60 - 3-15-23 <br />Location - EVERETT WA 98208 <br />Building - RESIDENTIAL SYsrem No. - 1 <br />Contractor - WEST COAST PLUMBING Contract No. - 230405-03 <br />Calculated By - TAYLOR FAHEY Drawing No. - <br />Construction: IN) Combustible ( ) Non -Combustible Ceiling Height <br />OCCUPANCY - RESIDENTIAL <br />S Type of Calculation: ( )NFPA 13 Residential ( )NFPA 13R (X)NFPA 13D <br />Y Number of Sprinklers Flowing: ( )1 (X)2 ( )4 ( 1 <br />S ( )Other <br />T ( )Specific Ruling Made by Date <br />E <br />M Listed Flow at Start Point - 9 Gpm System Type <br />Listed Pies. at Start Point - 9 Psi (X) Net ( ) Dry <br />D MAXIMUM LISTED SPACING 12 x 12 ( ) Deluge ( ) PreAction <br />E Domestic Flow Added - 0 GPM Sprinkler or Nozzle <br />S Additional Flow Added - Gpm Make LF SENJO SPRINKLER Model LL-RFC30 <br />I Elevation at Highest Outlet - 116 Feet Size 3/8 K-Factor 3 <br />G Note: Temperature Rating 155 <br />N <br />Calculation Gpm Required 18.0038 Psi Required 30.33 At Ref It SIR <br />Summary C-Factor Used; Overhead 150 Underground 150 <br />W Water Flow Test: Pump Data: <br />A Date of Test - Rated Cap. <br />T Time of Test - @ Psi <br />E Static (Psi) - 91 Elev. <br />R Residual (Psi) - 20 Other <br />Flow (Gpm) - 500 <br />S Elevation - 100 <br />P Location: <br />P <br />L Source of Information: <br />Y <br />Computer Pro mms by Hydmtec Inc. Route 111 Win ham N.H. USA ON87 <br />