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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",{"$nulls":11},0.8333333333333334,0.66015625,0.75]
[null,"Enter Minimum Air Flow (must be greater than 0)=",{"$nulls":6},132,"CFM"]
[null,"Enter Maximum Air Flow =",{"$nulls":6},660,"CFM",{"$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,{"$nulls":8},"Pressure Constants",null,null,null," "]
[null,null,null,199.9526627218935,132,0.007425815301785774,"3 - 6 - 13",0.010208782390270416,"2 - 5 - 10",0.012991749478755053,"1 - 3 - 6"," - ",25.462670537593866,10.873220611661923,12.384064567427872," - "," - "," - ",{"$nulls":9},"m","b",null,"880 data"," "]
[null,null,null,299.92899408284023,198,0.016708084429017993,"6 - 10 - 18",0.022969760378108436,"5 - 8 - 14",0.029231436327198868,"3 - 4 - 8"," - ",34.91085679115035,22.00600150410075,23.320081086998," - "," - "," - ",{"$nulls":8},"0 Deg, free",0,2.979166666666666,null,2.7083333333333326]
[null,null,null,399.905325443787,264,0.029703261207143096,"9 - 13 - 21",0.040835129561081665,"7 - 10 - 16",0.05196699791502021,"4 - 6 - 10",13.567554591756565,41.614451620840256,29.904835251427826,31.079308290039066,16.959749844375025," - "," - ",{"$nulls":8},"22.5 Deg free",0,4.095666666666667,null,3.723333333333333]
[null,30,null,499.8816568047337,330,0.04641134563616109,"11 - 16 - 24",0.0638048899391901,"8 - 13 - 18",0.08119843424221908,"5 - 7 - 11",20.23399438658078,46.814163734007494,36.031646695038134,37.09783248511424,25.371902905742687,12.7142342837508," - ",{"$nulls":8},"45 Deg, free",0,5.212166666666667,null,4.738333333333333]
[null,"x",0.8333333333333334,599.8579881656805,396,0.06683233771607197,"13 - 18 - 26",0.09187904151243374,"10 - 14 - 20",0.11692574530879547,"6 - 8 - 12",25.680872302196892,51.062637874396714,41.037616143866686,42.015324809609226,32.245132416990984,21.710891024632204,16.06354798681953,{"$nulls":10},"10% add to pressure",null,null,null,"Coefficients from 880 New Sound Regression..xls"]
[null,4,null,699.8343195266273,462,0.09096623744687576,"15 - 20 - 28",0.12505758428081265,"12 - 15 - 22",0.15914893111474945,"7 - 9 - 13",30.28614196088674,54.654671578396105,45.2701030055464,46.17300532855573,38.05636516641884,29.317455915621238,23.883999013226926,{"$nulls":8},"Sound",{"$nulls":6},"2","3","4","5","6","7","NC"]
[null,null,null,799.810650887574,528,0.11881304482857238,"17 - 21 - 30",0.16334051824432666,"13 - 16 - 23",0.20786799166008085,"8 - 10 - 13",34.27540799348182,57.76623270408662,48.93644989119376,49.77455201265026,43.09028394488875,35.90656213377595,30.658381829301973,{"$nulls":10},"B","CVn","CAn",null,"M(An)",9.732037858594214,9.732037858594222,9.73203785859422,9.732037858594229,9.73203785859424,9.435504715179798]
[null,null,null,899.7869822485208,594,0.15037275986116197,"18 - 22 - 32",0.20672784340297595,"14 - 17 - 25",0.26308292694478985,"8 - 10 - 14",37.79419001263719,60.51082412795317,52.170397036305516,52.95134132917936,47.53051498960694,41.71856571872242,36.63381095569021,{"$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,999.7633136094674,660,0.18564538254464436,"19 - 24 - 33",0.2552195597567604,"15 - 18 - 26",0.3247937369688763,"9 - 11 - 15",40.941847788306006,62.965944817253856,55.06326133480401,55.793076207725406,51.502437006256386,46.9175800869847,41.979014452310494,{"$nulls":14},"B",-96.19017272305152,-132.7916727230564,-128.7097727230585,-207.09637272305886,-292.1303727230637,-306.6532129957984]
[]
[{"$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,1.015759526627219,62.2970568,1.8490280101446577,"0.8 - 1.9 - 4.0",2.5419868151773337,"0.6 - 1.4 - 3.1",3.2349456202100084,"0.4 - 0.8 - 1.8"," - ",25.462670537593866,10.873220611661923,12.384064567427872," - "," - "," - "]
[null,null,null,1.5236392899408284,93.4455852,4.1603130228254805,"1.9 - 3.0 - 5.6",5.719470334149,"1.4 - 2.3 - 4.3",7.278627645472518,"0.8 - 1.3 - 2.5"," - ",34.91085679115035,22.00600150410075,23.320081086998," - "," - "," - "]
[null,null,null,2.031519053254438,124.5941136,7.396112040578631,"2.7 - 4.0 - 6.4",10.167947260709335,"2.1 - 3.1 - 5.0",12.939782480840034,"1.2 - 1.8 - 2.9",13.567554591756565,41.614451620840256,29.904835251427826,31.079308290039066,16.959749844375025," - "," - "]
[null,762,null,2.5393988165680477,155.74264200000002,11.556425063404111,"3.3 - 5.0 - 7.2",15.887417594858336,"2.6 - 3.9 - 5.6",20.218410126312552,"1.5 - 2.2 - 3.2",20.23399438658078,46.814163734007494,36.031646695038134,37.09783248511424,25.371902905742687,12.7142342837508," - "]
[null,"x",0.07741920000000001,3.047278579881657,186.8911704,16.641252091301922,"4.0 - 5.6 - 7.9",22.877881336596,"3.1 - 4.3 - 6.1",29.114510581890073,"1.8 - 2.5 - 3.5",25.680872302196892,51.062637874396714,41.037616143866686,42.015324809609226,32.245132416990984,21.710891024632204,16.06354798681953]
[null,101.6,null,3.555158343195267,218.0396988,22.650593124272064,"4.6 - 6.0 - 8.5",31.13933848592235,"3.6 - 4.7 - 6.6",39.62808384757261,"2.1 - 2.7 - 3.8",30.28614196088674,54.654671578396105,45.2701030055464,46.17300532855573,38.05636516641884,29.317455915621238,23.883999013226926]
[null,null,null,4.063038106508876,249.1882272,29.584448162314523,"5.2 - 6.4 - 9.1",40.67178904283734,"4.1 - 5.0 - 7.0",51.759129923360135,"2.4 - 2.9 - 4.1",34.27540799348182,57.76623270408662,48.93644989119376,49.77455201265026,43.09028394488875,35.90656213377595,30.658381829301973]
[null,null,null,4.570917869822486,280.3367556,37.44281720542933,"5.6 - 6.8 - 9.6",51.47523300734101,"4.3 - 5.3 - 7.5",65.50764880925267,"2.5 - 3.1 - 4.3",37.79419001263719,60.51082412795317,52.170397036305516,52.95134132917936,47.53051498960694,41.71856571872242,36.63381095569021]
[null,null,null,5.078797633136095,311.48528400000004,46.225700253616445,"5.9 - 7.2 - 10.2",63.549670379433344,"4.5 - 5.6 - 7.9",80.87364050525021,"2.6 - 3.2 - 4.6",40.941847788306006,62.965944817253856,55.06326133480401,55.793076207725406,51.502437006256386,46.9175800869847,41.979014452310494]
[]
[]
[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"]