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Mechanical HVAC&R - Power required at fan motor input. This equation is in the handbook and lifted verbatim from the ASHRAE Handbook, Fundamentals. Why are there "drive loss" AND "belt drive efficiency"? -
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EQUATION - Slim bathroom fan - exhaust fan - wall fan - humidity sensor / timer - with backflow flap - 150 x 150 mm - diameter 100 mm - 7 m² - 72 m3/h - 8 W : Amazon.de: Home & Kitchen
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