{"product_id":"ewc-controls-end-18x8-ma15s-motorized-zone-damper-18x8-in","title":"Ewc Controls END-18X8-MA15S Motorized Zone Damper 18x8 in","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe EWC CONTROLS END-18X8-MA15S is a motorized zone damper engineered for residential HVAC zoning systems. It delivers power open and power closed operation via a 3-wire configuration, driven by a motor rated at 17 inch-pounds of torque with a manual gear release for override capability. The damper features a 97% leak-proof rating achieved through overlapping blades and a positive-off motor, ensuring accurate airflow control across all zones. Nylon bushings reduce operational noise, and onboard fail-safe LEDs give technicians a fast visual indication of damper status. A quick-connecting terminal block eliminates wire nuts for cleaner, faster field wiring.\u003c\/p\u003e\n\u003cp\u003eThis damper is intended for use in residential forced-air zoning installations where individual zone control is required. It mounts directly into the ductwork and is designed to pair with Ultra-Zone zoning control systems. The sturdier frame construction speeds up duct installation and reduces flex during seating. Licensed HVAC technicians performing zoning retrofits or new-construction multi-zone builds are the primary installers. The LED display allows for immediate visual confirmation of blade position during commissioning and troubleshooting without additional test equipment.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003ePower open and power closed 3-wire operation for reliable zone control\u003c\/li\u003e\n  \u003cli\u003eMotor produces 17 inch-pounds of torque with manual gear release for override\u003c\/li\u003e\n  \u003cli\u003e97% 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\u003eOnboard LED display and fail-safe LEDs for fast diagnostic checks\u003c\/li\u003e\n  \u003cli\u003eQuick-connecting terminal block eliminates wire nuts and speeds wiring\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 Ultra-Zone zoning system and compatible with standard residential forced-air duct systems requiring an 18x8 inch motorized damper.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation should be performed by a licensed HVAC technician familiar with forced-air zoning systems and low-voltage control wiring. Power down the air handler and de-energize the zone control board before making any wiring connections at the terminal block. Verify blade orientation and confirm LED status indicators show correct open and closed positions before restoring system power. Follow local mechanical codes and manufacturer wiring diagrams for proper 3-wire hookup.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDamper Size\u003c\/strong\u003e: 18x8 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOperation Type\u003c\/strong\u003e: Power Open \/ Power Closed (3-wire)\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\u003eLength\u003c\/strong\u003e: 22 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: 6.4 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-18X8-MA15S\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"EWC CONTROLS","offers":[{"title":"Default Title","offer_id":51344205545778,"sku":"END-18X8-MA15S","price":273.5,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/310555110.webp?v=1782031739","url":"https:\/\/voomisupply.com\/products\/ewc-controls-end-18x8-ma15s-motorized-zone-damper-18x8-in","provider":"Voomi Supply","version":"1.0","type":"link"}