{"product_id":"ewc-controls-end-14x8-ma15s-nd-series-motorized-damper","title":"Ewc Controls END-14X8-MA15S Nd Series Motorized Damper","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe EWC CONTROLS END-14X8-MA15S is a motorized zone damper in the ND Series Ultra-Zone line, sized at 14 inches by 8 inches for rectangular duct applications. It is designed for HVAC zoning systems and is installed by licensed HVAC technicians to control airflow across individual zones in residential and light commercial ductwork. The motor delivers 17 inch-pounds of torque and operates on a 3-wire power-open\/power-closed configuration. Nylon bushings reduce operational noise, and a 97 percent leak-proof blade seal rating ensures accurate zone isolation. An LED display lets the technician confirm damper position and status at a glance during installation and checkout.\u003c\/p\u003e\u003cp\u003eThe END-14X8-MA15S fits into standard rectangular duct systems where zone control is required. It is intended for use as part of a zoning system, particularly compatible with the EWC CONTROLS Ultra-Zone zoning platform. A sturdier frame design allows faster field installation compared to earlier ND Series models. The quick-connecting terminal block eliminates wire nuts and simplifies wiring connections during rough-in. The damper is well suited for residential forced-air systems where multiple zones are served by a single air handler or furnace.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e17 inch-pounds of motor torque for reliable blade actuation\u003c\/li\u003e\n\u003cli\u003e3-wire power-open\/power-closed operation with fail-safe LED diagnostics\u003c\/li\u003e\n\u003cli\u003e97 percent leak-proof rating from overlapping blade design and positive-off motor\u003c\/li\u003e\n\u003cli\u003eNylon bushings for quieter operation and extended motor service life\u003c\/li\u003e\n\u003cli\u003eQuick-connecting terminal block eliminates wire nuts for faster wiring\u003c\/li\u003e\n\u003cli\u003eManual gear release for damper positioning during power-off conditions\u003c\/li\u003e\n\u003cli\u003eUL listed motor with NEMA Class 2 certification\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned for use with the EWC CONTROLS Ultra-Zone zoning system. Fits standard 14-inch by 8-inch rectangular duct openings in residential and light commercial forced-air HVAC applications.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation should be performed by a qualified HVAC technician familiar with duct zoning systems. Disconnect power to the air handler and zone control board before wiring or mounting the damper. Verify duct dimensions before installation to confirm proper fit. Follow all applicable mechanical codes and the zone controller manufacturer wiring diagram during low-voltage connection.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDamper Size\u003c\/strong\u003e: 14 inches x 8 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMotor Torque\u003c\/strong\u003e: 17 inch-pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOperation Type\u003c\/strong\u003e: 3-wire power-open\/power-closed\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLeak-Proof Rating\u003c\/strong\u003e: 97 percent\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMotor Certification\u003c\/strong\u003e: UL Listed, NEMA Class 2\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength\u003c\/strong\u003e: 21 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWidth\u003c\/strong\u003e: 14 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeight\u003c\/strong\u003e: 7 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 5.5 pounds\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: END-14X8-MA15S\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"EWC CONTROLS","offers":[{"title":"Default Title","offer_id":51343113912626,"sku":"END-14X8-MA15S","price":268.86,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/310555095.webp?v=1782017019","url":"https:\/\/voomisupply.com\/products\/ewc-controls-end-14x8-ma15s-nd-series-motorized-damper","provider":"Voomi Supply","version":"1.0","type":"link"}