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[{"$nulls":28},"S80Z/S580Z Return Grille / 0 Deg deflection"]
[{"$nulls":8},"Input Data",{"$nulls":12},"Nominal Duct","Core Area","H & W",null,null," "," "]
[null,"Enter Duct Width in inches =",{"$nulls":6},46,"Inches",{"$nulls":11},"Area ( ft2 )","( ft2 )","border",null,null," Free area & Core Area Ratio",null,"Ak/Ac",1,null,null," - ",null,"Based on Titus 350 RLZ test data"]
[null,"Enter Duct Height in inches =",{"$nulls":6},46,"Inches",{"$nulls":11},14.694444444444445,14.219184027777779,0.75]
[null,"Enter Minimum Neck Velocity (greater than 0)=",{"$nulls":6},350,"FPM"]
[null,"Enter Maximum Neck Velocity =",{"$nulls":6},800,"FPM"]
[{"$nulls":26},"Pressure Constants",null,null,null," "]
[{"$nulls":27},"m","b",null," "," "]
[null,"S80Z/S580Z Return Grille / 0 Deg deflection",{"$nulls":24},"0 Degrees",0,1.5715583151141086]
[null,"IP Data",{"$nulls":5},"Metric Data"]
[null,"Nom","Duct ","Neck","Air"," ",null,"Nom","Duct ","Neck","Air"," ",{"$nulls":19}," ","from S80Z Sound regression.xls"]
[null,"Duct","Area","Vel","Flow","Ps","Nc","Duct","Area","Vel","Flow","Ps","Octave Band, dB",{"$nulls":20},"2","3","4","5","6","7"]
[null,"in","ft²","FPM","CFM","\"WG",null,"mm","m²","m/s","L/s","Pa",2,3,4,5,6,7,{"$nulls":8},"Sound",{"$nulls":5},"M(An)",14.36021043418606,23.196044930344378,22.01266627473711,20.15512365155787,24.151822219046334,31.229159247287757]
[null,null,null,350,4976.714409722223,-0.0043650738450518815,21.565273136708196,null,null,1.778,2348.7474262109376,-1.0869033874179186,48.03271087637174,47.657026369654005,43.1732570099461,36.40508334284577,27.628482742021667,23.69134681842297,{"$nulls":10},"B","CVn","CAn",null,"M(Vn)",31.97449593135393,53.98486974255536,54.72419088216035,60.697466657554315,83.58617579102742,92.3793642012851]
[null,null,null,406.25,5776.543511284723,-0.005880879143923531,25.898382913657525,null,null,2.06375,2726.2246911376956,-1.4643389068369592,50.102270665494515,51.15121485913278,46.71529830389315,40.33374688036584,33.03862552316331,29.670631617975744,{"$nulls":8},"0 deg",null,-169.9409491329986,66.94612142222914,18.380778523438032,null,"B",-49.86810539385367,-116.42628838085231,-121.4266537433719,-141.249733582771,-212.86446022850734,-247.3313484208025]
[null,null,null,462.5,6576.372612847223,-0.0076221761401479935,29.668678887256032,null,null,2.3495000000000004,3103.7019560644535,-1.8979218588968503,51.90302193691613,54.19155435455892,49.79727515569829,43.75212884611507,37.74606212050988,34.87328619291344]
[null,46,null,518.75,7376.201714409723,-0.009588964833725261,33.005700202812434,1168.3999999999999,null,2.63525,3481.1792209912114,-2.3876522435975898,53.49683457624957,56.88250428894341,52.52507756711191,46.77767738774092,41.912529786968086,39.47806240560794]
[null,"x",14.694444444444445,575,8176.030815972223,-0.011781245224655328,35.99884354883501,"x",1.36515856,2.9210000000000003,3858.656485917969,-2.9335300609391766,54.92640581512316,59.296153507495035,54.971781637872596,49.49144503531913,45.649645553697404,43.60831929569659,{"$nulls":8}," ",{"$nulls":4},"From Titus","b","MVN","MAN"]
[null,46,null,631.25,8975.859917534723,-0.014199017312938211,38.71240727028582,1168.3999999999999,null,3.20675,4236.133750844727,-3.5355553109216147,56.222445530759146,61.48435173210498,57.189947170226674,51.951728618696634,49.037689691621544,47.35278254437793,{"$nulls":13},"Band","Const","Slope 1","Slope 2","NC"]
[null,null,null,687.5,9775.689019097223,-0.016842281098573907,41.19418778291684,null,null,3.4925,4613.611015771485,-4.193727993544902,57.40778202550767,63.48564164790153,59.21864469019607,54.2018633048679,52.136338841064905,50.77740671936215,{"$nulls":13},2,-49.86810539385367,31.97449593135393,14.36021043418606,18.380778523438032]
[null,null,null,743.75,10575.518120659723,-0.019711036581562404,43.480684106787024,null,null,3.7782500000000003,4991.088280698243,-4.908048108809038,58.49984779199983,65.32945580156178,61.08770982228424,56.27494134781257,54.9911641784009,53.93255704264237,{"$nulls":13},3,-116.42628838085231,53.98486974255536,23.196044930344378,66.94612142222914," ",null,null," "]
[null,null,null,800,11375.347222222223,-0.022805283761903702,45.60039970204191,null,null,4.064,5368.565545625001,-5.678515656714022,59.51225652063454,67.03877917788364,62.820442329952755,58.196805735668775,57.637753952504305,56.85756561397051,{"$nulls":13},4,-121.4266537433719,54.72419088216035,22.01266627473711,-169.9409491329986]
[{"$nulls":26}," "," ",null,null,null,5,-141.249733582771,60.697466657554315,20.15512365155787]
[null,"1) Performance data does not include damper",{"$nulls":29},6,-212.86446022850734,83.58617579102742,24.151822219046334,{"$nulls":4}," "]
[null,"2) Data were obtained from test conducted in accordance with ANSI / ASHRAE Standard 70-1991.",{"$nulls":29},7,247.3313484208025,92.3793642012851,31.229159247287757]
[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."]