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[{"$nulls":28},"DMGS/DMGD Single/Double Deflection Duct Mounted Supply Grille, Free Jet Data"]
[{"$nulls":8},"Input Data",{"$nulls":12},"Nominal Duct","Core Area","H & W",null,null," "," "]
[null,"Enter Duct Width in inches =",{"$nulls":6},30,"Inches",{"$nulls":11},"Area '( ft2 )","( ft2 )","border",null,null," Free area & Core Area Ratio",null,"Ak/Ac",0.77,null,null," - ",null," "," "]
[null,"Enter Duct Height in inches =",{"$nulls":6},4,"Inches",{"$nulls":11},0.8333333333333334,0.66015625,0.75]
[null,"Enter Minimum Neck Velocity (greater than 0)=",{"$nulls":6},200,"FPM"]
[null,"Enter Maximum Neck Velocity =",{"$nulls":6},1000,"FPM",{"$nulls":16},"Throw Zones"]
[{"$nulls":27},"c(ii)","c(iii)","c(iv)"]
[{"$nulls":26},"0 Deg, free",1.2726,3.535,9.190999999999999,null,1.8,5,13,null,"reduced by sqrt of 2 for free jet."]
[null,"DMGS/DMGD Single/Double Deflection Duct Mounted Supply Grille, Free Jet Data",{"$nulls":24},"22.5 Deg free",0.986265,2.7396249999999998,7.123025,null,1.395,3.875,10.075]
[null,null,null,"IP Data",{"$nulls":22},"45 Deg, free",0.57267,1.5907499999999999,4.13595,null,0.81,2.25,5.85]
[null,"Nom","Duct ","Neck","Air","0°",null,"22.5°",null,"45°"]
[null,"Duct","Area","Vel","Flow","Pt","Throw","Pt","Throw","Pt","Throw","Nc","Octave Band, dB"]
[null,"in","ft²","FPM","CFM","\"WG","ft","\"WG","ft","\"WG","ft",null,2,3,4,5,6,7,{"$nulls":8},"Pressure Constants",null,null,null," "]
[null,null,null,200,132.03125,0.0074293317290133045,"3 - 6 - 13",0.010213616666225063,"2 - 5 - 10",0.012997901603436817,"1 - 3 - 6"," - ",25.468186479025803,10.879720035543828,12.39044911838842," - "," - "," - ",{"$nulls":9},"m","b",null,"880 data"," "]
[null,null,null,300,198.046875,0.016715996390279937,"6 - 10 - 18",0.022980637499006397,"5 - 8 - 14",0.029245278607732846,"3 - 4 - 8"," - ",34.916372732582275,22.012500927982686,23.32646563795855," - "," - "," - ",{"$nulls":8},"0 Deg, free",0,2.979166666666666,null,2.7083333333333326]
[null,null,null,400,264.0625,0.029717326916053218,"9 - 13 - 21",0.04085446666490025,"7 - 10 - 16",0.05199160641374727,"4 - 6 - 10",13.574626462403902,41.61996756227218,29.91133467530976,31.085692840999613,16.968673596804578," - "," - ",{"$nulls":8},"22.5 Deg free",0,4.095666666666667,null,3.723333333333333]
[null,30,null,500,330.078125,0.04643332330633316,"11 - 16 - 24",0.06383510416390666,"8 - 13 - 18",0.08123688502148012,"5 - 7 - 11",20.241066257228088,46.81967967543942,36.03814611892001,37.10421703607476,25.38082665817221,12.725914955452156," - ",{"$nulls":8},"45 Deg, free",0,5.212166666666667,null,4.738333333333333]
[null,"x",0.8333333333333334,600,396.09375,0.06686398556111975,"13 - 18 - 26",0.09192254999602559,"10 - 14 - 20",0.11698111443093138,"6 - 8 - 12",25.6879441728442,51.06815381582861,41.04411556774856,42.021709360569744,32.25405616942051,21.72257169633356,16.07555710293242,{"$nulls":10},"10% add to pressure",null,null,null,"Coefficients from 880 New Sound Regression..xls"]
[null,4,null,700,462.109375,0.091009313680413,"15 - 20 - 28",0.12511680416125706,"12 - 15 - 22",0.15922429464210106,"7 - 9 - 13",30.293213831534107,54.66018751982803,45.27660242942831,46.17938987951628,38.065288918848424,29.32913658732265,23.896008129339876,{"$nulls":8},"Sound",{"$nulls":6},"2","3","4","5","6","7","NC"]
[null,null,null,800,528.125,0.11886930766421287,"17 - 21 - 30",0.163417866659601,"13 - 16 - 23",0.20796642565498907,"8 - 10 - 13",34.28247986412916,57.77174864551854,48.942949315075666,49.78093656361081,43.099207697318334,35.91824280547736,30.670390945414923,{"$nulls":10},"B","CVn","CAn",null,"M(An)",9.732037858594214,9.732037858594222,9.73203785859422,9.732037858594229,9.73203785859424,9.435504715179798]
[null,null,null,900,594.140625,0.15044396751251943,"18 - 22 - 32",0.20682573749105754,"14 - 17 - 25",0.2632075074695956,"8 - 10 - 14",37.801261883284496,60.516340069385095,52.17689646018742,52.957725880139876,47.539438742036495,41.73024639042377,36.6458200718031,{"$nulls":8},"0 deg",null,-162.6,68.79,9.6,null,"M(Vn)",53.65505536290635,63.22165536290803,62.10425536290874,86.80375536290886,113.62105536291052,116.81592305706788]
[null,null,null,1000,660.15625,0.18573329322533264,"19 - 24 - 33",0.2553404166556266,"15 - 18 - 26",0.32494754008592047,"9 - 11 - 15",40.94891965895334,62.97146075868578,55.069760758685945,55.79946075868595,51.51136075868594,46.92926075868611,41.991023568423444,{"$nulls":14},"B",-96.19017272305152,-132.7916727230564,-128.7097727230585,-207.09637272305886,-292.1303727230637,-306.6532129957984,null,null," "]
[]
[{"$nulls":26}," "]
[null,"1) Data were obtained from test conducted in accordance with ANSI / ASHRAE Standard 70-1991.",{"$nulls":25},"880 data",-167.6,68.79,9.6,null,"880 data",-101.19017272305152,-137.7916727230564,-133.7097727230585,-212.09637272305886,-297.1303727230637,-311.6532129957984]
[null,"2) All pressures are in inches or water",{"$nulls":26},5,{"$nulls":4},5,5,5,5,5,5]
[null,"3) Throw values are given for terminal velocities of 150, 100, and 50 fpm, Isothermal Conditions",{"$nulls":34}," ",null,null," "]
[null,"4) N.C. values are based on Octave Band 2 - 7 sound power levels minus a room absorption of 10dB.",{"$nulls":26},"Sound levels increased for duct mount location.",{"$nulls":4},5,"Correction"]
[null,"Sound data is based on 0 deg blade deflection. A setting of 22.5° and 45° increase sound by ",{"$nulls":24}," "," "]
[null,"4 or 9 dB/NC respectively.  Dash (-) in space denotes an NC or dB value of less than 10."]
[null,"5) When selecting larger supply grilles for cooling purposes, account for drop by referring to the "]
[null,"Engineering Guidelines"]
[]
[null,"DMGS/DMGD Single/Double Deflection Duct Mounted Supply Grille, Free Jet Data"]
[null,null,null,"Metric Data"]
[null,"Nom","Duct ","Neck","Air","0°",null,"22.5°",null,"45°"]
[null,"Duct","Area","Vel","Flow","Pt","Throw","Pt","Throw","Pt","Throw","Nc","Octave Band, dB"]
[null,"mm","m²","m/s","L/s","Pa","m","Pa","m","Pa","m",null,2,3,4,5,6,7]
[null,null,null,1.016,62.31180515625,1.8499036005243128,"0.8 - 1.9 - 4.0",2.5431905498900407,"0.6 - 1.4 - 3.1",3.2364774992557677,"0.4 - 0.8 - 1.8"," - ",25.468186479025803,10.879720035543828,12.39044911838842," - "," - "," - "]
[null,null,null,1.524,93.467707734375,4.162283101179704,"1.9 - 3.0 - 5.6",5.722178737252593,"1.4 - 2.3 - 4.3",7.282074373325479,"0.8 - 1.3 - 2.5"," - ",34.916372732582275,22.012500927982686,23.32646563795855," - "," - "," - "]
[null,null,null,2.032,124.6236103125,7.399614402097251,"2.7 - 4.0 - 6.4",10.172762199560163,"2.1 - 3.1 - 5.0",12.94590999702307,"1.2 - 1.8 - 2.9",13.574626462403902,41.61996756227218,29.91133467530976,31.085692840999613,16.968673596804578," - "," - "]
[null,762,null,2.54,155.779512890625,11.561897503276956,"3.3 - 5.0 - 7.2",15.894940936812757,"2.6 - 3.9 - 5.6",20.22798437034855,"1.5 - 2.2 - 3.2",20.241066257228088,46.81967967543942,36.03814611892001,37.10421703607476,25.38082665817221,12.725914955452156," - "]
[null,"x",0.07741920000000001,3.048,186.93541546875,16.649132404718817,"4.0 - 5.6 - 7.9",22.88871494901037,"3.1 - 4.3 - 6.1",29.128297493301915,"1.8 - 2.5 - 3.5",25.6879441728442,51.06815381582861,41.04411556774856,42.021709360569744,32.25405616942051,21.72257169633356,16.07555710293242]
[null,101.6,null,3.556,218.09131804687502,22.661319106422837,"4.6 - 6.0 - 8.5",31.154084236153007,"3.6 - 4.7 - 6.6",39.64684936588316,"2.1 - 2.7 - 3.8",30.293213831534107,54.66018751982803,45.27660242942831,46.17938987951628,38.065288918848424,29.32913658732265,23.896008129339876]
[null,null,null,4.064,249.247220625,29.598457608389005,"5.2 - 6.4 - 9.1",40.69104879824065,"4.1 - 5.0 - 7.0",51.78363998809228,"2.4 - 2.9 - 4.1",34.28247986412916,57.77174864551854,48.942949315075666,49.78093656361081,43.099207697318334,35.91824280547736,30.670390945414923]
[null,null,null,4.572,280.403123203125,37.460547910617336,"5.6 - 6.8 - 9.6",51.499608635273326,"4.3 - 5.3 - 7.5",65.5386693599293,"2.5 - 3.1 - 4.3",37.801261883284496,60.516340069385095,52.17689646018742,52.957725880139876,47.539438742036495,41.73024639042377,36.6458200718031]
[null,null,null,5.08,311.55902578125,46.247590013107825,"5.9 - 7.2 - 10.2",63.57976374725103,"4.5 - 5.6 - 7.9",80.9119374813942,"2.6 - 3.2 - 4.6",40.94891965895334,62.97146075868578,55.069760758685945,55.79946075868595,51.51136075868594,46.92926075868611,41.991023568423444]
[]
[]
[null,"1) Data were obtained from test conducted in accordance with ANSI / ASHRAE Standard 70-1991."]
[null,"2) All pressures are in inches or water"]
[null,"3) Throw values are given for terminal velocities of 150, 100, and 50 fpm, Isothermal Conditions"]
[null,"4) N.C. values are based on Octave Band 2 - 7 sound power levels minus a room absorption of 10dB."]
[null,"Sound data is based on 0 deg blade deflection. A setting of 22.5° and 45° increase sound by "]
[null,"4 or 9 dB/NC respectively.  Dash (-) in space denotes an NC or dB value of less than 10."]
[null,"5) When selecting larger supply grilles for cooling purposes, account for drop by referring to the "]
[null,"Engineering Guidelines"]