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why the discharge pressure of ID fan showing negative at fan
running condition.(boiler operating condition.)

Answer Posted / girish_b_k

pressure always flow from high to low pressure .
furnace pressure is high and atmospheric pressure is low

when the damper is opened automatically all the pressure to
the low pressure. the low pressure in the sense it is vaccum
only and negative is only vaccum

Is This Answer Correct ?    4 Yes 10 No



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