{"product_id":"ewc-controls-eurd-6-ma15s-6-inch-round-motorized-damper","title":"Ewc Controls EURD-6-MA15S 6 Inch Round Motorized Damper","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe EWC CONTROLS EURD-6-MA15S is a single-blade, round motorized damper designed for 6-inch duct applications in residential and light commercial HVAC zoning and air quality systems. The unit features a two-position, 24-volt motor that is powered in both directions — powered open and powered closed — eliminating reliance on a spring-return mechanism. The 3-wire configuration uses a common wire, a power-open leg, and a power-close leg, giving the installer precise directional control over airflow. This damper is installed by licensed HVAC technicians as part of zone control or indoor air quality setups.\u003c\/p\u003e\u003cp\u003eThe EURD-6-MA15S is suited for round duct systems where positive damper positioning is required in both open and closed states. Its 6-inch diameter fits standard round duct fittings commonly found in residential forced-air systems and light commercial zoning applications. The powered-both-ways motor design makes it well-suited for IAQ systems, fresh air intake control, and multi-zone HVAC configurations where fail-safe spring-return operation is not preferred or required.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eTwo-position, 24-volt motor powered open and powered closed — no spring return required\u003c\/li\u003e\n\u003cli\u003e3-wire hookup: common, power-open leg, and power-close leg for direct directional control\u003c\/li\u003e\n\u003cli\u003eSingle-blade round damper design sized for 6-inch round duct\u003c\/li\u003e\n\u003cli\u003eSuitable for air quality, zoning, and fresh air control applications\u003c\/li\u003e\n\u003cli\u003eCompatible with standard 24-volt HVAC control systems\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style motorized damper for use in 6-inch round duct HVAC zoning and air quality systems operating on 24-volt control circuits.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation should be performed by a licensed HVAC technician. Disconnect power to the air handler and zone control panel before wiring or mounting the damper. Verify that the 24-volt control transformer has adequate VA capacity to support the powered-both-ways motor load. Follow local mechanical codes and the zone controller manufacturer wiring diagram when connecting the common, power-open, and power-close leads.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type\u003c\/strong\u003e: URD Motorized Damper\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShape\u003c\/strong\u003e: Round\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSize\u003c\/strong\u003e: 6 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMotor Voltage\u003c\/strong\u003e: 24 volts\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMotor Operation\u003c\/strong\u003e: Two-position, powered open and powered closed\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWires to Motor\u003c\/strong\u003e: 3\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication\u003c\/strong\u003e: Air Quality\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: EWC CONTROLS\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: EURD-6-MA15S\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"EWC CONTROLS","offers":[{"title":"Default Title","offer_id":51343175614770,"sku":"EURD-6-MA15S","price":184.24,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/310554842.jpg?v=1782019098","url":"https:\/\/voomisupply.com\/products\/ewc-controls-eurd-6-ma15s-6-inch-round-motorized-damper","provider":"Voomi Supply","version":"1.0","type":"link"}