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n • a <br /> Rhvac-Residential&Light Commercial HVAC Loads Elite Software Development,Inc. <br /> HVAC Designs RDT Office Addition 576 e <br /> �Tampa,FL 33615 _ _ ___ _ Pa e 3 <br /> Manual D Ductsize - Duct System 1 - Return _ __ _ � <br /> ---Duct Name, <br /> etc. Roughness Diameter Velocity SPL.Duct <br /> Type Temperature Width Loss/100 SPL.Fit <br /> Upstream Length Height Fit.Eq.Len SPL.Tot <br /> Shape CFM Area SP.Avail SPL.Cumull <br /> I Sizing__ � <br /> ---Duct Name: RMT-100, Feeds From:Sw Office, Fitting: 5-A, Effective Length:43.7 <br /> Trunk 0.003 14 698 0.002 <br /> �I Up: Fan 75 11 0.078 0.032 <br /> I Rect 3.0 15 40.7 0.034 � <br /> Nearest Inch 800 13 -0.092 0.127 � <br /> � — — --- --- -- -- -- - <br /> ---Duct Name: 18x18,14",-720 CFM, Returns From: Hall, Fittings: 10-A,8-D2, 6-F, Effective Length: 128.0 <br /> Runout 0.01 15.1 600 0.005 <br /> Up: RMT-100 75 12 0.072 0.087 <br /> Rect 7.2 16 120.9 0.092 <br /> Nearest Inch 800 33.4 0.000 0.092 <br /> Report Units: Pressure: in.wg, Duct lengths:feet, Duct sizes: inch,Airflow: CFM,Velocity:ft./min,Temperature:°F <br /> Notes: Static pressure available values for return ducts are at the entrance of the duct. For supply,they are at the <br /> exit. The cumulative static pressure loss value for a return trunk is with respect to the entry point of the return <br /> runout upstream with the highest static pressure available. Total and cumulative static pressure loss values for <br /> the supply main trunk include any device pressure losses entered,and the cumulative may also include the total <br /> i static pressure loss of the return side. , <br /> �Summary - -- - - - - - — - - -- � <br /> Number of active trunks: 1 <br /> Number of active runouts: � <br /> ; Total runout outlet airflow: 800 <br /> i Main trunk airflow: 800 I <br /> Largest trunk diameter: 14 RMT-100 <br /> Largest runout diameter: 15.1 18x18,14",-720 CFM <br /> Smallest trunk diameter: 14 RMT-100 <br /> Smallest runout diameter: 15.1 18x18,14",-720 CFM , <br /> Runout maximum cumulative static pressure loss: 0.092 18x18,14",-720 CFM <br /> Return loss added to supply: 0.127 <br /> � Total effective length of return (ft.): 171.8 18x18,14",-720 CFM <br /> System duct surface area(Scenario 1): 46.4 Main (Not linked to duct load) <br /> Total system duct surtace area: 46.4 <br /> �I <br /> I <br /> � <br /> � I <br /> Wednesday,August 26,2009, 3:39 PM <br />