Motorized Dampers
February 2007
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According to the company, IRIS-M motorized dampers precisely measure minimum and maximum airflows within +/- 5 percent by using the pressure ports, and alter the airflow by means of the actuator adjustment screws. The motorized damper quietly and accurately varies airflow in response to a 0 to 10 V DC or 4 to 20 mA signal, to precisely control temperature, humidity or ventilation rate. An external switch retracts the damper fully for duct cleaning. Made from galvanized steel with neoprene seals, six sizes fit standard ducts from 4- to 12-inch diameters. Continental Fan

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