Hvac

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Hvac

  1. 1. HVAC
  2. 2. VENTILATION Inline fanExhaust duct A/W duct
  3. 3. passing through it whereas a larger area will have a larger CFM requirement •The CFM requirement of a room decides theand hence a larger duct.•In the lower basement plan we notice that when a duct originates from an AIR WASHERits size is large (here, 1300x350) and as we move further the size decreases to 1250x300, 500x300,etc.Simultaneously the CFM also decreases from 6650, 6150, size of the ductwork and vents needed there. A•Same principle applies for the exhaust network of ducts. room with less CFM requirement will have a smaller duct passing through it whereas a larger area will have a larger CFM requirement and hence a larger duct. •In the lower basement plan we notice that when a duct originates from an AIR WASHER its size is large (here, 1300x350) and as we move further the size decreases to 1250x300, 500x300,etc. •Simultaneously the CFM also decreases from 6650, 6150, 4650, 3650 & 1000,etc. •Same principle applies for the exhaust network of ducts.
  4. 4. DUCT SIZE AND CFM DECREASES 1000 CFM 500X3006650 CFM1300X350

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