{"product_id":"ewc-controls-nd248-motorized-damper-24x8-inch-rectangular","title":"Ewc Controls nd248 Motorized Damper 24x8 Inch Rectangular","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe EWC CONTROLS nd248 is a 24 x 8 inch rectangular motorized damper designed for zoned HVAC duct systems. It operates on a power-open, power-close actuation method, meaning the motor drives the blade in both directions rather than relying on a spring return. This design gives the zone controller positive blade position confirmation in both the open and closed states. The nd248 uses a side-mount configuration, making it suitable for installations where end-mount access is restricted. Licensed HVAC technicians and sheet metal contractors are the primary installers of this type of damper in residential and light commercial zoning applications.\u003c\/p\u003e\n\u003cp\u003eThe nd248 is intended for rectangular duct zoning installations where reliable two-way motorized control is required. Its 24 x 8 inch face size fits standard duct openings of that dimension and is commonly installed in trunk-and-branch or extended plenum duct systems. The side-mount actuator positioning allows the damper to be placed in tighter duct runs where clearance above or below the duct is limited. It works within a zone control panel wiring scheme that supplies power to open and a separate power signal to close the blade.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003ePower-open and power-close actuation provides positive blade position control in both directions\u003c\/li\u003e\n  \u003cli\u003e24 x 8 inch rectangular face size fits standard duct openings of that dimension\u003c\/li\u003e\n  \u003cli\u003eSide-mount actuator design accommodates installations with limited clearance above or below the duct\u003c\/li\u003e\n  \u003cli\u003eSuitable for residential and light commercial HVAC zoning systems\u003c\/li\u003e\n  \u003cli\u003eCompatible with zone control panels wired for dual-powered damper operation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style replacement or new-installation motorized damper for rectangular duct zoning systems requiring power-open and power-close operation in a 24 x 8 inch duct opening.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation should be performed by a licensed HVAC technician familiar with low-voltage duct zoning wiring. Shut off power to the zone control panel and the air handler before beginning installation. Verify the duct opening measures 24 x 8 inches before mounting and confirm the zone panel supports power-open, power-close damper wiring. Follow local mechanical codes and the zone controller manufacturer wiring diagram when making low-voltage connections.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDuct Opening Size\u003c\/strong\u003e: 24 x 8 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDuct Shape\u003c\/strong\u003e: Rectangular\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eActuator Mount\u003c\/strong\u003e: Side Mount\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eActuation Type\u003c\/strong\u003e: Power Open \/ Power Close\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eStandard Information\u003c\/h4\u003e\n\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: nd248\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"EWC CONTROLS","offers":[{"title":"Default Title","offer_id":51138784526642,"sku":"ND248","price":237.74,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/305534240.png?v=1778263379","url":"https:\/\/voomisupply.com\/products\/ewc-controls-nd248-motorized-damper-24x8-inch-rectangular","provider":"Voomi Supply","version":"1.0","type":"link"}