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[{"$nulls":28},"DMGP Perforated Face Duct Mounted Supply Grille, Entrained Jet"]
[{"$nulls":8},"Input Data",{"$nulls":12},"Nominal Duct","Core Area","H & W",null,null," "," ",{"$nulls":12},"Titus says:"]
[null,"Enter Duct Width in inches =",{"$nulls":6},36,"Inches",{"$nulls":11},"Area '( ft2 )","( ft2 )","border",null,null," Free area & Core Area Ratio",null,"Ak/Ac",0.77,null,null," - ",null," "," ",{"$nulls":4},"negative ps =1.1 * Pt supply"]
[null,"Enter Duct Height in inches =",{"$nulls":6},12,"Inches",{"$nulls":11},3,2.75390625,0.75,{"$nulls":16},"if:"]
[null,"Enter Air Flow (must be greater than 0) =",{"$nulls":6},2203,"CFM",{"$nulls":30},"tp/vp =5.1","S80P return"]
[null,"Series =","DMGPR or U",{"$nulls":4},"Tag =","SD-987",{"$nulls":17},"Throw Zones",{"$nulls":13},"Then;","Pt","Pv","Ps"]
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[null,"DMGPR or U Supply Grille",{"$nulls":24},"Entrained",1,3,11,null,"from 1310 security grille",{"$nulls":7},"tp/vp",3.6914571562500003,0.33140212094432525,0.08977542117297199]
[null,"Tag : SD-987",{"$nulls":24},"Free",0.707,2.121,7.776999999999999,{"$nulls":9},"ratio",0.7238151286764707]
[null,"IP Data",{"$nulls":5},"Metric Data"]
[null,"Nom","Neck","Air","Entrained",null,"Nom","Neck","Air","Entrained"]
[null,"Duct","Vel","Flow","Pt","Throw","Duct","Vel","Flow","Pt","Throw","Nc","Octave Band, dB"]
[null,"in","FPM","CFM","\"WG","ft","mm","m/s","L/s","Pa","m",null,2,3,4,5,6,7,{"$nulls":8},"Pressure Constants",null,null,null," "]
[null,"36 x 12",799.9546099290781,2203,0.16114654840018314,"30 - 45 - 73","914 x 305",4.063769418439716,1039.7001222000001,40.1254905516456,"9.2 - 13.8 - 22.2",29.90146890202,52.21902624289786,45.631982292261455,42.48066105115745,40.73437060795526,42.32154668726153,41.249454301547544,{"$nulls":9},"m","b",null,"S80P"," ","S80P Return"]
[{"$nulls":26},"0 Degrees",0,4.0392,null,3.6719999999999997,null,5.1]
[{"$nulls":32},"reduce *.72for supply"]
[]
[{"$nulls":28},110,"add to pressure for duct effect",null,null,"Coefficients from S80P New Sound Regression..xls"]
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[{"$nulls":36}," ",null,null," "]
[{"$nulls":33},2,"Correction"]
[{"$nulls":26}," "," ","Sound levels Decreased  from S80P retrurn by 3, increased by 5 for duct mount = +2 for duct mount location."]
[{"$nulls":39}," "]