{"product_id":"ewc-controls-end-20x10-nd-motorized-damper-20x10-in","title":"Ewc Controls END-20X10 Nd Motorized Damper 20x10 in","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe EWC CONTROLS END-20X10 is a rectangular motorized zone damper designed for use in residential and light-commercial HVAC ductwork. Operating on 24 volts, this ND series damper controls airflow to individual zones as part of a zoning system, allowing precise temperature management across different areas of a structure. The damper ships with a side-mounted motor and connects via a 3-wire configuration. An integrated LED display lets the installing technician visually confirm damper position and operation during commissioning without additional test equipment. Nylon bushings in the shaft reduce operating noise, and the reinforced frame is engineered for faster, more secure duct installation.\u003c\/p\u003e\n\u003cp\u003eThis damper is sized at 20 inches by 10 inches with a rectangular profile, making it suitable for standard rectangular duct runs in forced-air zoning applications. It is intended for use in air quality and airflow control systems where independent zone control is required. Typical installations include residential multi-zone systems where separate thermostats govern individual rooms or floors. The 3-wire motor connection is compatible with standard zone control panel wiring configurations used in low-voltage HVAC zoning setups.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eIntegrated LED display allows visual confirmation of damper position during installation and checkout\u003c\/li\u003e\n  \u003cli\u003e24-volt operation compatible with standard low-voltage HVAC zoning controls\u003c\/li\u003e\n  \u003cli\u003e3-wire motor connection with side-mounted motor for straightforward panel wiring\u003c\/li\u003e\n  \u003cli\u003eNylon bushings reduce operating noise for quieter long-term performance\u003c\/li\u003e\n  \u003cli\u003eReinforced frame design speeds up duct installation and improves structural fit\u003c\/li\u003e\n  \u003cli\u003eRectangular profile sized at 20 inches by 10 inches for standard duct applications\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 operating on 24-volt low-voltage control wiring.\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 zoning systems. De-energize the zone control panel and disconnect power to the air handler before installing or replacing any duct damper. Verify duct dimensions match the damper face size before securing the frame, and confirm wire connections to the zone panel follow the control board manufacturer's wiring diagram. Commissioning should include an LED status check at the damper to verify full open and full closed travel.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eProduct Type\u003c\/strong\u003e: ND Motorized Damper\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSize\u003c\/strong\u003e: 20 inches x 10 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShape\u003c\/strong\u003e: Rectangle\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eVoltage\u003c\/strong\u003e: 24 volts\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWires to Motor\u003c\/strong\u003e: 3\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMotor Mount\u003c\/strong\u003e: Side\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFeatures\u003c\/strong\u003e: LED Light\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eApplication\u003c\/strong\u003e: Air Quality\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-20X10\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"EWC CONTROLS","offers":[{"title":"Default Title","offer_id":51342898889010,"sku":"END-20X10","price":274.74,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/310555106.jpg?v=1782009982","url":"https:\/\/voomisupply.com\/products\/ewc-controls-end-20x10-nd-motorized-damper-20x10-in","provider":"Voomi Supply","version":"1.0","type":"link"}