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[]
[{"$nulls":8},"Input Data",{"$nulls":12},"Nominal Duct","Core Area","H & W"]
[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",0.78,null,null," - "]
[null,"Enter Duct Height in inches =",{"$nulls":6},10,"Inches",{"$nulls":11},2.0833333333333335,1.87890625,0.75]
[null,"Enter Air Flow (must be greater than 0) =",{"$nulls":6},2000,"CFM"]
[null,"Series =","AF80H or V",{"$nulls":4},"Tag =","RG-009",{"$nulls":17},"Throw Zones"]
[{"$nulls":27},"c(ii)","c(iii)","c(iv)"]
[null,"AF80H or V Supply Grille",{"$nulls":24},"0 Degrees",1.8,5,13]
[null,"Tag : RG-009",null,"IP Data",{"$nulls":22},"22.5 Degrees",1.395,3.875,10.075]
[null,"Nom","Duct ","Neck","Air","0°",null,"22.5°",null,"45°",{"$nulls":16},"45 Degrees",0.81,2.25,5.85]
[null,"Duct","Area","Vel","Flow","Pt","Throw","Pt","Throw","Pt","Throw","Nc","Octave Band, dB"]
[null,"in","ft²","FPM","CFM","\"WG","ft","\"WG","ft","\"WG","ft",null,2,3,4,5,6,7]
[null,"30 x 10",2.0833333333333335,1064.4490644490645,2000,0.1177317170439249,"47 - 58 - 82",0.16011513517973783,"37 - 45 - 64",0.20249855331555075,"21 - 26 - 37",37.22951806379518,58.96943166132006,51.327224582353765,52.02661523629949,48.40848632352656,44.55380249136398,39.70222571862401,{"$nulls":8},"Pressure Constants",null,null,null," "]
[{"$nulls":27},"m","b",null," "," "]
[null,"AF80H or V Supply Grille",{"$nulls":24},"0 Degrees",0,1.666666666666667]
[null,"Tag : RG-009",null,"Metric Data",{"$nulls":22},"22.5 Degrees",0,2.2666666666666666]
[null,"Nom","Duct ","Neck","Air","0°",null,"22.5°",null,"45°",{"$nulls":16},"45 Degrees",0,2.8666666666666663]
[null,"Duct","Area","Vel","Flow","Pt","Throw","Pt","Throw","Pt","Throw","Nc","Octave Band, dB",{"$nulls":19},"Coefficients from 880 New Sound Regression..xls"]
[null,"mm","m²","m/s","L/s","Pa","m","Pa","m","Pa","m",null,2,3,4,5,6,7,{"$nulls":8},"Sound",{"$nulls":6},"2","3","4","5","6","7","NC"]
[null,"762 x 254",0.19354800000000003,5.407401247401248,943.8948,29.315197543937302,"14.4 - 17.7 - 25.0",39.86866865975472,"11.2 - 13.7 - 19.4",50.422139775572134,"6.5 - 8.0 - 11.2",37.22951806379518,58.96943166132006,51.327224582353765,52.02661523629949,48.40848632352656,44.55380249136398,39.70222571862401,{"$nulls":10},"B","CVn","CAn",null,"M(An)",9.732037858594214,9.732037858594222,9.73203785859422,9.732037858594229,9.73203785859424,9.435504715179798]
[{"$nulls":26},"0 deg",null,-172.6,68.79,9.6,null,"M(Vn)",53.65505536290635,63.22165536290803,62.10425536290874,86.80375536290886,113.62105536291052,116.81592305706788]
[null,"1) Throw values are given for terminal velocities of 150, 100, and 50 fpm, (0.75,0.5 and 0.25 m/s) Isothermal Conditions",{"$nulls":26},-167.6,null,null,null,"B",-106.19017272305152,-142.7916727230564,-138.7097727230585,-217.09637272305886,-302.1303727230637,-316.6532129957984]
[null,"2) NC values are based on octave band 2 - 7 sound power levels minus a room absorption of 10dB, re 1.0 E-12 watts."]
[null,"Sound data is based on 0° 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,"3) When selecting larger supply grilles for cooling purposes, account for drop by referring to the Engineering Guidelines."]
[null,"4) See K-Select program for performance data not shown, including octave band data."]