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[{"$nulls":28},"680/6880-30 H or V, 5680,56880-30 H or V Supply Grille"]
[{"$nulls":8},"Input Data",{"$nulls":12},"Nominal Duct","Core Area","H & W",null,null," "," "]
[null,"Enter Duct Width in inches =",{"$nulls":6},10,"Inches",{"$nulls":11},"Area '( ft2 )","( ft2 )","border",null,null," Free area & Core Area Ratio",null,"Ak/Ac",1,null,null," - ",null,"based on","KECdata"]
[null,"Enter Duct Height in inches =",{"$nulls":6},18,"Inches",{"$nulls":11},1.25,1.1080729166666667,0.75]
[null,"Enter Air Flow (must be greater than 0) =",{"$nulls":6},1108,"CFM"]
[null,"Series =","680-30H or V",{"$nulls":4},"Tag =","RG-009",{"$nulls":17},"Throw Zones"]
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[null,"680-30H or V Supply Grille",{"$nulls":24},0,2.1907862171648422,6.688057526849242,17.30413919808573]
[null,"Tag : RG-009",null,"IP Data",{"$nulls":22},15,1.7692756480075045,5.766403120735049,15.661279849986391]
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[null,"680-30H or V Supply Grille",{"$nulls":24},0,0,2.1012432750000003]
[null,"Tag : RG-009",null,"Metric Data",{"$nulls":22},15,0,2.5664040000000004]
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[{"$nulls":26},"0 deg",null,-181,68.79,9.6,null,"M(Vn)",61.11,59.7,65.5,76.5,89.5,90.25]
[{"$nulls":32},"B",-138.7,-137.1,-156,-193,-236,-251]
[]
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