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The asker opted for community grading. The question was closed on 2013-11-11 17:54:16 based on peer agreement (or, if there were too few peer comments, asker preference.)
English to French translations [PRO] Tech/Engineering - Mechanics / Mech Engineering
English term or phrase:dampers
Consult equipment manufacturers about fan-speed safety factors.
Modulate dampers and measure fan-motor amperage to ensure no overload will occur.
Measure amperage in full cooling and free-cooling modes to determine the maximum required brake horsepower.
Adjust volume dampers for main duct, submain ducts, and major branch ducts to design airflows within specified tolerances.
Measure static pressure at a point downstream from the balancing damper and adjust volume dampers until the proper static pressure is achieved.
Where sufficient space in submains and branch ducts is unavailable for Pitot-tube traverse measurements, measure airflow at terminal outlets and inlets and calculate the total airflow for that zone.