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[{"$nulls":28},"S80/S580 Return Grille / 35 deg deflection"]
[{"$nulls":8},"Input Data",{"$nulls":12},"Nominal Duct","Core Area","H & W",null,null," "," "]
[null,"Enter Duct Width in inches =",{"$nulls":6},21,"Inches",{"$nulls":11},"Area ( ft2 )","( ft2 )","border",null,null," Free area & Core Area Ratio",null,"Ak/Ac",1,null,null," - ",null," "]
[null,"Enter Duct Height in inches =",{"$nulls":6},21,"Inches",{"$nulls":11},3.0625,2.84765625,0.75,{"$nulls":10},"Based on KEC data "]
[null,"Enter Minimum Air Flow (must be greater than 0)=",{"$nulls":6},850,"CFM"]
[null,"Enter Maximum Air Flow =",{"$nulls":6},2100,"CFM"]
[{"$nulls":26},"Pressure Constants",null,null,null," "]
[{"$nulls":27},"m","b",null," "," "]
[null,"S80/S580 Return Grille / 35 deg deflection",{"$nulls":24},"35 Degrees",0,2.206398652468027]
[null,"IP Data",{"$nulls":5},"Metric Data",{"$nulls":24},"2002-10-24"]
[null,"Nom","Duct ","Neck","Air"," ",null,"Nom","Duct ","Neck","Air"," ",{"$nulls":19}," ","from S80 Sound Analysis.XLS"]
[null,"Duct","Area","Vel","Flow","Ps","Nc","Duct","Area","Vel","Flow","Ps","Octave Band, dB",{"$nulls":20},"2","3","4","5","6","7","NC"]
[null,"in","ft²","FPM","CFM","\"WG",null,"mm","m²","m/s","L/s","Pa",2,3,4,5,6,7,{"$nulls":8},"Sound",{"$nulls":5},"M(An)",16.426827393252896,17.669397534954555,14.347603807884695,19.48229851843424,26.013788106292193,25.554006468112817,16.389513967275708]
[null,null,null,298.4910836762689,850,-0.006701137480343157," - ",null,null,1.516334705075446,401.15529000000004,-1.6685832326054462,42.04771772446756,35.34784098970748,26.159422533435837,17.013486816244573," - "," - ",{"$nulls":10},"B","CVn","CAn",null,"M(Vn)",21.665809428753967,41.11762067140564,54.268995374150585,70.48420933048389,79.64116848658534,77.72920904301,64.40662558522523]
[null,null,null,353.360768175583,1006.25,-0.009391229705232209,13.034250111911499,null,null,1.795072702331962,474.89707125,-2.33841619660282,43.63553919943574,38.36122672617604,30.136632642450472,22.179060786103456,15.13473468108541,10.621553161754404,{"$nulls":8},"35 Degrees",null,-158.53672406346595,64.40662558522523,16.389513967275708,null,"B",-19.039462279095734,-74.44596939533993,-114.67342363033684,-166.2845558068587,-199.63129386948748,-199.06342025152503,-158.53672406346595]
[null,null,null,408.2304526748971,1162.5,-0.012534199409058812,17.071712641606958,null,null,2.0738106995884773,548.6388525,-3.121015652855644,44.99370527240235,40.93876981685327,33.53859685585916,26.597509222444494,20.12720604042199,15.494169389082598]
[null,21,null,463.1001371742112,1318.75,-0.016130046591822968,20.59923203520797,533.4,null,2.3525486968449933,622.38063375,-4.016381601363919,46.18033106196282,43.190761797789875,36.51088319929206,30.457894906319716,24.489113900254388,19.75136016498601]
[null,"x",3.0625,517.9698216735254,1475,-0.02017877125352468,23.731297104523982,"x",0.28451556,2.6312866941015094,696.122415,-5.024514042127645,47.23392957443984,45.19029309240621,39.14995989697331,33.88551012410888,28.362027899859505,23.53129644168206,{"$nulls":8}," ",{"$nulls":4},"From S80 Sound Analysis.xls"]
[null,21,null,572.8395061728395,1631.25,-0.02468037339416393,26.547702512766882,533.4,null,2.910024691358025,769.8641962500001,-6.145412975146819,48.18134301668515,46.98830514754472,41.523061898248294,36.96767917970427,31.844617083911693,26.93027849885408,{"$nulls":13},"Band","Const","Slope 1","Slope 2"]
[null,null,null,627.7091906721537,1787.5,-0.029634853013740737,29.10628957854872,null,null,3.188762688614541,843.6059775,-7.379078400421443,49.042028687924855,48.62172424798142,43.678926273622885,39.767701455303886,35.00840437663198,30.018112197387723,{"$nulls":13},2,-19.039462279095734,21.665809428753967,16.426827393252896]
[null,null,null,682.5788751714678,1943.75,-0.035042210112255084,31.450327232273402,null,null,3.4675006858710566,917.34775875,-8.725510317951516,49.83054186708871,50.11817356836707,45.65401140548547,42.33292885485215,37.906893406648955,32.84701669495308,{"$nulls":13},3,-74.44596939533993,41.11762067140564,17.669397534954555,null," ",null,null," "]
[null,null,null,737.448559670782,2100,-0.04090244468970701,33.613030122637646,null,null,3.7462386831275727,991.08954,-10.184708727737046,50.55805566319103,51.498857562644645,47.47630394272658,44.699710251315274,40.58115531235942,35.45707712795314,{"$nulls":13},4,-114.67342363033684,54.268995374150585,14.347603807884695]
[{"$nulls":26}," "," ",null,null,null,5,-166.2845558068587,70.48420933048389,19.48229851843424]
[null,"1) Performance data does not include damper",{"$nulls":29},6,-199.63129386948748,79.64116848658534,26.013788106292193,{"$nulls":4}," "]
[null,"2) Data were obtained from test conducted in accordance with ANSI / ASHRAE Standard 70-1991.",{"$nulls":29},7,-199.06342025152503,77.72920904301,25.554006468112817]
[null,"3) All pressures are in inches of water (Pascals)"]
[null,"4) N.C. values are based on Octave Band 2 - 7 sound power levels minus a room absorption of 10dB."]