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[{"$nulls":8},"Input Data",{"$nulls":12},"Nominal Duct","Core Area","H & W"]
[null,"Enter Duct Width in inches =",{"$nulls":6},20,"Inches",{"$nulls":11},"Area '( ft2 )","( ft2 )","border",null,null," Free area & Core Area Ratio",null,"Ak/Ac",0.77,null,null," - "]
[null,"Enter Duct Height in inches =",{"$nulls":6},20,"Inches",{"$nulls":11},2.7777777777777777,2.5733506944444446,0.75]
[null,"Enter Minimum Air Flow (must be greater than 0)=",{"$nulls":6},920,"CFM"]
[null,"Enter Maximum Air Flow =",{"$nulls":6},2500,"CFM",{"$nulls":16},"Throw Zones"]
[{"$nulls":27},"c(ii)","c(iii)","c(iv)"]
[{"$nulls":26},"0 Degrees",1.8,5,13]
[null,"80/880 H or V, 580,5880 H or V, 480/4880 H or V, 585/5885 H or V Supply Grille",{"$nulls":24},"22.5 Degrees",1.395,3.875,10.075000000000001]
[null,null,null,"IP Data",{"$nulls":22},"45 Degrees",0.81,2.25,5.8500000000000005]
[null,"Nom","Duct ","Neck","Air","0°",null,"22.5°",null,"45°"]
[null,"Duct","Area","Vel","Flow","Pt","Throw","Pt","Throw","Pt","Throw","Nc","Octave Band, dB"]
[null,"in","ft²","FPM","CFM","\"WG","ft","\"WG","ft","\"WG","ft",null,2,3,4,5,6,7,{"$nulls":8},"Pressure Constants",null,null,null," "]
[null,null,null,357.5105414066453,920,0.021581159653992436,"22 - 33 - 56",0.029669114256627143,"17 - 25 - 43",0.03775706885926185,"10 - 15 - 25",10.891841239360192,39.91167173111897,27.7364648602868,28.965319897339086,13.643677891181781," - "," - ",{"$nulls":9},"m","b",null," "," "]
[null,null,null,434.2587282847023,1117.5,0.03184154898175045,"26 - 40 - 61",0.04377478180014186,"21 - 31 - 48",0.055708014618533266,"12 - 18 - 28",16.701824309054842,44.44336184977014,33.07614718761003,34.21062695090053,20.975097415013963," - "," - ",{"$nulls":8},"0 Degrees",0,2.7083333333333326]
[null,null,null,511.0069151627593,1315,0.04409106900127017,"31 - 47 - 67",0.06061504501466928,"24 - 36 - 52",0.07713902102806838,"14 - 21 - 30",21.563779133144635,48.2356057116467,37.54454131871388,38.600045237834664,27.110232422076123,14.70892583513917," - ",{"$nulls":8},"22.5 Degrees",0,3.723333333333333]
[null,20,null,587.7551020408163,1512.5,0.058329719712551534,"36 - 51 - 72",0.08018990390020933,"28 - 39 - 55",0.10205008808786711,"16 - 23 - 32",25.74412201515227,51.49620360043939,41.38649795463586,42.374097888637394,32.385264561382215,21.61363538641895,15.938011255519726,{"$nulls":8},"45 Degrees",0,4.738333333333333]
[null,"x",2.7777777777777777,664.5032889188733,1710,0.07455750111559459,"40 - 54 - 76",0.10249935845676207,"31 - 42 - 59",0.13044121579792953,"18 - 24 - 34",29.410679030135697,54.35605706213717,44.75625815189905,45.68429985347525,37.01196783442744,27.66972024745543,22.164384887539725,{"$nulls":14},"Coefficients from 880 New Sound Regression..xls"]
[null,20,null,741.2514757969303,1907.5,0.09277441321039932,"45 - 57 - 80",0.12754340868432748,"35 - 44 - 62",0.1623124041582556,"20 - 26 - 36",32.67603275872517,56.90297863630404,47.75729126814953,48.63229173907702,41.13240636080978,33.06313406887644,27.70945408237931,{"$nulls":8},"Sound",{"$nulls":6},"2","3","4","5","6","7","NC"]
[null,null,null,817.9996626749872,2105,0.11298045599696574,"49 - 60 - 84",0.15532205458290554,"38 - 46 - 65",0.19766365316884535,"22 - 27 - 38",35.61938856706982,59.19874719059193,50.46239123217886,51.28958089077547,44.84652669128725,37.92470105903011,32.707721645065206,{"$nulls":10},"B","CVn","CAn",null,"M(An)",9.732037858594214,9.732037858594222,9.73203785859422,9.732037858594229,9.73203785859424,9.435504715179798]
[null,null,null,894.7478495530443,2302.5,0.13517562947529385,"51 - 62 - 88",0.1858352961524963,"39 - 48 - 68",0.23649496282969876,"23 - 28 - 40",38.29858975405017,61.28847953563913,52.92471910092674,53.708388779783135,48.22731931234641,42.34996150959371,37.25741432877949,{"$nulls":8},"0 deg",null,-167.6,68.79,9.6,null,"M(Vn)",53.65505536290635,63.22165536290803,62.10425536290874,86.80375536290886,113.62105536291052,116.81592305706788]
[null,null,null,971.4960364311013,2500,0.15935993364538362,"53 - 65 - 92",0.21908313339309973,"41 - 50 - 71",0.2788063331408158,"24 - 29 - 41",40.757169792808924,63.20613105611794,55.18428444316443,55.92801783280281,51.329717629319006,46.410820045688425,41.43245861773546,{"$nulls":14},"B",-101.19017272305152,-137.7916727230564,-133.7097727230585,-212.09637272305886,-297.1303727230637,-311.6532129957984]
[]
[null,"1) Performance data includes damper"]
[null,"2) Data were obtained from test conducted in accordance with ANSI / ASHRAE Standard 70-1991."]
[null,"3) All pressures are in inches or water"]
[null,"4) Throw values are given for terminal velocities of 150, 100, and 50 fpm, Isothermal Conditions"]
[null,"5) 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,"6) When selecting larger supply grilles for cooling purposes, account for drop by referring to the "]
[null,"Engineering Guidelines"]
[]
[null,"80/880 H or V, 580,5880 H or V, 480/4880 H or V, 585/5885 H or V Supply Grille"]
[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,1.8161535503457582,434.19160800000003,5.373708753844117,"6.6 - 9.9 - 17.0",7.387609449900158,"5.1 - 7.7 - 13.1",9.4015101459562,"3.0 - 4.5 - 7.6",10.891841239360192,39.91167173111897,27.7364648602868,28.965319897339086,13.643677891181781," - "," - "]
[null,null,null,2.206034339686288,527.4012195,7.928545696455862,"8.0 - 12.1 - 18.7",10.899920668235323,"6.2 - 9.4 - 14.5",13.871295640014784,"3.6 - 5.4 - 8.4",16.701824309054842,44.44336184977014,33.07614718761003,34.21062695090053,20.975097415013963," - "," - "]
[null,null,null,2.5959151290268174,620.6108310000001,10.978676181316272,"9.5 - 14.2 - 20.3",15.09314620865265,"7.3 - 11.0 - 15.7",19.20761623598903,"4.3 - 6.4 - 9.1",21.563779133144635,48.2356057116467,37.54454131871388,38.600045237834664,27.110232422076123,14.70892583513917," - "]
[null,508,null,2.985795918367347,713.8204425,14.524100208425333,"10.9 - 15.4 - 21.7",19.967286071152124,"8.4 - 11.9 - 16.8",25.41047193387891,"4.9 - 6.9 - 9.8",25.74412201515227,51.49620360043939,41.38649795463586,42.374097888637394,32.385264561382215,21.61363538641895,15.938011255519726]
[null,"x",0.258064,3.3756767077078766,807.0300540000001,18.564817777783052,"12.3 - 16.3 - 23.1",25.522340255733756,"9.5 - 12.7 - 17.9",32.47986273368445,"5.5 - 7.4 - 10.4",29.410679030135697,54.35605706213717,44.75625815189905,45.68429985347525,37.01196783442744,27.66972024745543,22.164384887539725]
[null,508,null,3.7655574970484063,900.2396655,23.100828889389433,"13.7 - 17.3 - 24.4",31.758308762397544,"10.6 - 13.4 - 18.9",40.41578863540564,"6.2 - 7.8 - 11.0",32.67603275872517,56.90297863630404,47.75729126814953,48.63229173907702,41.13240636080978,33.06313406887644,27.70945408237931]
[null,null,null,4.155438286388935,993.449277,28.132133543244468,"14.8 - 18.1 - 25.6",38.67519159114348,"11.5 - 14.1 - 19.9",49.21824963904249,"6.7 - 8.2 - 11.5",35.61938856706982,59.19874719059193,50.46239123217886,51.28958089077547,44.84652669128725,37.92470105903011,32.707721645065206]
[null,null,null,4.5453190757294655,1086.6588885,33.65873173934817,"15.5 - 19.0 - 26.8",46.27298874197158,"12.0 - 14.7 - 20.8",58.88724574459499,"7.0 - 8.5 - 12.1",38.29858975405017,61.28847953563913,52.92471910092674,53.708388779783135,48.22731931234641,42.34996150959371,37.25741432877949]
[null,null,null,4.935199865069995,1179.8685,39.68062347770052,"16.1 - 19.8 - 27.9",54.55170021488183,"12.5 - 15.3 - 21.7",69.42277695206315,"7.3 - 8.9 - 12.6",40.757169792808924,63.20613105611794,55.18428444316443,55.92801783280281,51.329717629319006,46.410820045688425,41.43245861773546]
[]
[null,"1) Performance data includes damper"]
[null,"2) Data were obtained from test conducted in accordance with ANSI / ASHRAE Standard 70-1991."]
[null,"3) All pressures are in inches or water"]
[null,"4) Throw values are given for terminal velocities of  0.75,0.5 and 0.25 m/s, Isothermal Conditions"]
[null,"5) 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,"6) When selecting larger supply grilles for cooling purposes, account for drop by referring to the "]
[null,"Engineering Guidelines"]