11/30/2022 0 Comments Carrier manual outside air damper![]() ![]() The switch is a 24 volt operator that will make a circuit to close the damper on a fall in pressure or make a circuit to open the damper on a rise in pressure. The round modulating bypass damper consists of a power open/power close damper operated by a static pressure switch. Round Modulating Bypass Damper MBD (6 – 20) The damper can be mounted in the vertical or horizontal position by rotating the donut and tightening the weighted arm in the correct position. The 8” bolt with weight is screwed into a threaded donut that is mounted around end of the damper shaft. ![]() Round bypass damper is designed to relieve air pressure when less than all zones are open. The spring return model has a red led to indicate the damper is powered. The power open/power close model has a red and green LED to indicate full open or close position. The damper is available in power open/power close, power open/close/modulating, power close/spring open, and power open/spring close. Rectangular dampers are designed to hold duct dimensions when mounted inside rectangular duct using extruded aluminum frame and mitered corners with L brackets. RECTANGULAR DAMPERS 8X8 THRU 30X30 CUSTOM SIZES AVAILABLE Related DocumentsĮconomical alternative for Residential & Commercial New Construction Screwless connections are reliable and easy to use. The insulated hat section retards condensation around the motor. This guarantees a closed damper on a loss of power. This damper powers open and springs closed. Spiral construction insures roundness and strength. Related DocumentsĮconomical alternative for Residential New Contruction. This guarantees an open damper on a loss of power. This damper powers closed and springs open. Two bolts with neoprene nuts attach the damper blade to the ½” shaft to insure reliable operation. The ½” shaft is made of solid aluminum for long lasting strength and reliability. The gasketed edge on the blade furnishes a 99% shut off. Each motor allows adjustment of the minimum close position. 24 vac actuator has ed and green LED’s that indicate when damper is fully open and fully closed Screw terminals are reliable and easy to use. Round dampers are power open/power close. ![]()
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