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[{"$nulls":8},"Input Data",{"$nulls":12},"Nominal Duct","Core Area","H & W"]
[null,"Enter Duct Width in inches =",{"$nulls":6},12,"Inches",{"$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 =",{"$nulls":6},10,"Inches",{"$nulls":11},0.8333333333333334,0.72265625,0.75]
[null,"Enter Minimum Neck Velocity (greater than 0)=",{"$nulls":6},350,"FPM"]
[null,"Enter Maximum Neck Velocity =",{"$nulls":6},1100,"FPM",{"$nulls":16},"Throw Zones"]
[{"$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,350,252.9296875,0.02068393492736659,"11 - 17 - 29",0.0284356373093766,"9 - 13 - 23",0.03618733969138661,"5 - 8 - 13"," - ",33.90125667447507,21.63783802755581,22.87699639479849," - "," - "," - ",{"$nulls":9},"m","b",null," "," "]
[null,null,null,443.75,320.6787109375,0.03324863391863997,"14 - 21 - 33",0.04570919887645644,"11 - 17 - 26",0.0581697638342729,"6 - 10 - 15",12.052704088815137,39.431500492251935,28.154114385031228,29.278101974792015,16.274496047368764," - "," - ",{"$nulls":8},"0 Degrees",0,2.7083333333333326]
[null,null,null,537.5,388.427734375,0.04878137204171022,"17 - 26 - 36",0.06706312931764964,"13 - 20 - 28",0.08534488659358905,"8 - 12 - 16",17.778790741474968,43.89775280161758,33.41669145920782,34.44766655840781,23.500049543288277,11.687428048943337," - ",{"$nulls":8},"22.5 Degrees",0,3.723333333333333]
[null,12,null,631.25,456.1767578125,0.06728214929657733,"20 - 28 - 39",0.0924974286329562,"16 - 22 - 30",0.11771270796933503,"9 - 12 - 18",22.581909582937943,47.64410557605155,37.83101220440424,38.78396716995909,29.560941430093443,19.620782196355783,14.04421488526629,{"$nulls":8},"45 Degrees",0,4.738333333333333]
[null,"x",0.8333333333333334,725,523.92578125,0.08875096568324133,"23 - 30 - 42",0.1220120968223761,"18 - 23 - 33",0.15527322796151086,"11 - 13 - 19",26.71870735934967,50.87073900705199,41.632948580713965,42.51870689217146,34.78102548547171,26.4535679090879,21.069129127917343,{"$nulls":14},"Coefficients from 880 New Sound Regression..xls"]
[null,10,null,818.75,591.6748046875,0.11318782120170218,"26 - 32 - 45",0.15560713388590935,"20 - 25 - 35",0.19802644657011653,"12 - 14 - 20",30.351734708589976,53.704439887389846,44.97189323833411,45.79863796118804,39.365418816627574,32.454271522738175,27.23856426809875,{"$nulls":8},"Sound",{"$nulls":6},"2","3","4","5","6","7","NC"]
[null,null,null,912.5,659.423828125,0.14059271585195987,"27 - 33 - 47",0.19328253982355598,"21 - 26 - 37",0.24597236379515203,"12 - 15 - 21",33.59047522984138,56.23060360266579,47.94846740673709,48.72260319430328,43.45227504414098,37.80372807269027,32.73844017349649,{"$nulls":10},"B","CVn","CAn",null,"M(An)",9.732037858594214,9.732037858594222,9.73203785859422,9.732037858594229,9.73203785859424,9.435504715179798]
[null,null,null,1006.25,727.1728515625,0.17096564963401445,"29 - 35 - 50",0.23503831463531594,"22 - 27 - 38",0.29911097963661737,"13 - 16 - 22",36.512194292660915,58.50949585547057,50.63368205504086,51.36035848978259,47.13909270322129,42.629557457651636,37.699965238719535,{"$nulls":8},"0 deg",null,-167.6,68.79,9.6,null,"M(Vn)",53.65505536290635,63.22165536290803,62.10425536290874,86.80375536290886,113.62105536291052,116.81592305706788]
[null,null,null,1100,794.921875,0.2043066225478659,"30 - 37 - 52",0.28087445832118924,"23 - 28 - 40",0.35744229409451256,"13 - 16 - 23",39.173458699365334,60.58523781036309,53.07952507219799,53.76297288580222,50.4972515128678,47.0251915685617,42.219198530885485,{"$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,1.778,119.3695083984375,5.150299796914281,"3.4 - 5.2 - 8.9",7.080473690034774,"2.7 - 4.0 - 6.9",9.010647583155265,"1.5 - 2.3 - 4.0"," - ",33.90125667447507,21.63783802755581,22.87699639479849," - "," - "," - "]
[null,null,null,2.2542500000000003,151.34348386230468,8.278909845741353,"4.4 - 6.5 - 10.0",11.381590520237655,"3.4 - 5.1 - 7.8",14.484271194733951,"2.0 - 2.9 - 4.5",12.052704088815137,39.431500492251935,28.154114385031228,29.278101974792015,16.274496047368764," - "," - "]
[null,null,null,2.7305,183.31745932617187,12.146561638385846,"5.3 - 7.8 - 11.0",16.69871920009476,"4.1 - 6.0 - 8.5",21.250876761803674,"2.4 - 3.5 - 5.0",17.778790741474968,43.89775280161758,33.41669145920782,34.44766655840781,23.500049543288277,11.687428048943337," - "]
[null,304.79999999999995,null,3.20675,215.29143479003906,16.753255174847755,"6.2 - 8.4 - 11.9",23.031859729606094,"4.8 - 6.5 - 9.3",29.31046428436442,"2.8 - 3.8 - 5.4",22.581909582937943,47.64410557605155,37.83101220440424,38.78396716995909,29.560941430093443,19.620782196355783,14.04421488526629]
[null,"x",0.07741920000000001,3.6830000000000003,247.26541025390625,22.09899045512709,"7.1 - 9.0 - 12.8",30.38101210877165,"5.5 - 7.0 - 9.9",38.663033762416205,"3.2 - 4.1 - 5.8",26.71870735934967,50.87073900705199,41.632948580713965,42.51870689217146,34.78102548547171,26.4535679090879,21.069129127917343]
[null,254,null,4.15925,279.2393857177735,28.183767479223842,"7.8 - 9.6 - 13.6",38.74617633759143,"6.1 - 7.5 - 10.5",49.30858519595902,"3.5 - 4.3 - 6.1",30.351734708589976,53.704439887389846,44.97189323833411,45.79863796118804,39.365418816627574,32.454271522738175,27.23856426809875]
[null,null,null,4.6355,311.21336118164066,35.00758624713801,"8.3 - 10.1 - 14.4",48.127352416065435,"6.4 - 7.9 - 11.1",61.247118584992855,"3.7 - 4.6 - 6.5",33.59047522984138,56.23060360266579,47.94846740673709,48.72260319430328,43.45227504414098,37.80372807269027,32.73844017349649]
[null,null,null,5.111750000000001,343.1873366455078,42.5704467588696,"8.7 - 10.7 - 15.1",58.52454034419367,"6.7 - 8.3 - 11.7",74.47863392951773,"3.9 - 4.8 - 6.8",36.512194292660915,58.50949585547057,50.63368205504086,51.36035848978259,47.13909270322129,42.629557457651636,37.699965238719535]
[null,null,null,5.588,375.161312109375,50.87234901441861,"9.1 - 11.1 - 15.8",69.93774012197612,"7.1 - 8.6 - 12.2",89.00313122953362,"4.1 - 5.0 - 7.1",39.173458699365334,60.58523781036309,53.07952507219799,53.76297288580222,50.4972515128678,47.0251915685617,42.219198530885485]
[]
[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"]