{"product_id":"ewc-controls-end-10x20-ma15s-motorized-zone-damper-10x20","title":"Ewc Controls END-10X20-MA15S Motorized Zone Damper 10x20","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe EWC CONTROLS END-10X20-MA15S is a motorized zone damper from the ND Ultra-Zone series, engineered for residential and light-commercial HVAC zoning applications. This 10 x 20 inch damper operates on a 3-wire power open\/power closed configuration and is driven by a motor producing 17 inch-pounds of torque with a built-in manual gear release. An LED display on the motor assembly allows technicians to verify damper position during commissioning without additional test equipment. Nylon bushings reduce operational noise, and a 97% leak-proof blade seal rating ensures accurate zone control with minimal air bypass.\u003c\/p\u003e\n\u003cp\u003eThe END-10X20-MA15S installs into rectangular sheet metal ductwork in zoned forced-air systems, both new construction and retrofit. It is designed for use with the EWC Ultra-Zone zoning system and pairs with compatible zone control boards and thermostats. The quick-connecting terminal block eliminates wire nuts and speeds field wiring. Licensed HVAC technicians handling residential zoning projects will find this damper suited for multi-zone split systems, air handlers, and ducted heat pump applications where precise zone isolation is required.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e3-wire power open\/power closed motor operation for positive zone control\u003c\/li\u003e\n  \u003cli\u003e17 inch-pounds of motor torque with manual gear release for commissioning or emergency override\u003c\/li\u003e\n  \u003cli\u003eLED diagnostic display for visual confirmation of damper position without a meter\u003c\/li\u003e\n  \u003cli\u003e97% leak-proof blade seal rating with overlapping blade design\u003c\/li\u003e\n  \u003cli\u003eNylon bushings for quieter operation and extended motor service life\u003c\/li\u003e\n  \u003cli\u003eQuick-connect terminal block — no wire nuts required\u003c\/li\u003e\n  \u003cli\u003eUL listed motor with NEMA Class 2 certification\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for use with the EWC Ultra-Zone zoning system. Fits standard 10 x 20 inch rectangular duct openings in forced-air HVAC systems.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation should be performed by a licensed HVAC technician familiar with zoned forced-air systems. Power down the air handler and zone control panel before wiring the damper. Verify duct opening dimensions match the damper frame size before fastening to avoid frame distortion. Follow applicable mechanical codes and the zone panel manufacturer's low-voltage wiring diagram when terminating the 3-wire connection at the control board.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDamper Size\u003c\/strong\u003e: 10 x 20 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMotor Operation\u003c\/strong\u003e: 3-wire power open \/ power closed\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMotor Torque\u003c\/strong\u003e: 17 inch-pounds\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLeak Rating\u003c\/strong\u003e: 97% leak-proof\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\u003ePackage Length\u003c\/strong\u003e: 22 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePackage Width\u003c\/strong\u003e: 14 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePackage Height\u003c\/strong\u003e: 7 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 6.9 pounds\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: END-10X20-MA15S\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"EWC CONTROLS","offers":[{"title":"Default Title","offer_id":51346754568498,"sku":"END-10X20-MA15S","price":308.96,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/310555088.webp?v=1782089346","url":"https:\/\/voomisupply.com\/products\/ewc-controls-end-10x20-ma15s-motorized-zone-damper-10x20","provider":"Voomi Supply","version":"1.0","type":"link"}