Supply Fan Analysis:
Unit : East Mechanical Penthouse
Each Fan : 38,500 cfm
External Static Pressure : 2.20 wc
Internal Static Pressure
Outside Air Louver : 0.10” wc
Outside Air Damper : 0.10” wc
Mixing Section : 0.10” wc
Filters : 0.60” wc Heating Coil : 0.21” wc
Direct Expansion Coil : 0.91” wc
Inlet Silencer : 0.25” wc
Outlet Silencer : 0.25” wc
Total Static Pressure : 4.72” wc
Corrected T.S.P @ 5300ft. altitude : 3.78”wc
Fan Selection : (2) 42D5 Twin City - 1800 rpm
Fan Efficiency : 80 %
Fan BHP : 28.6 Hp
Motor Size : 30 H
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Return Fan Analysis Unit:
East Mechanical Penthouse
Total Airflow : 69,300 cfm
Each Fan : 23,100 cfm
External Static Pressure : 0.75” wc
Internal Static Pressure
Inlet Silencer : 0.25” wc
Outlet Silencer : 0.25” wc
Plenum Loss : 0.35” wc
Total Static Pressure : 1.60” wc
Correction Factor Ratio : .80” wc
Corrected T.S.P @ 5300ft. altitude : 1.28”wc
Fan Selection : (3) 36D5 TCVA - 1170 rpm
Fan Efficiency : 66 %
Fan BHP : 7.1 Hp
Motor Size : 10 Hp per fan
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