{"product_id":"ewc-controls-end-22x8-nd-motorized-damper-22x8-in","title":"Ewc Controls END-22X8 Nd Motorized Damper 22x8 in","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe EWC CONTROLS END-22X8 is a rectangular motorized zone damper designed for zoned HVAC duct systems in residential and light commercial applications. Operating on 24 volts, this ND-series damper controls airflow through a 22 x 8 inch rectangular duct opening and is actuated by a side-mounted motor with a 3-wire connection. An onboard LED indicator allows technicians to confirm damper position and operation during installation and checkout without additional test equipment. Nylon bushings reduce motor and blade noise during cycling, contributing to quieter system operation and reducing wear over time.\u003c\/p\u003e\n\u003cp\u003eThe END-22X8 is suited for forced-air zoning systems where individual zones require independent airflow control. It is typically installed in rectangular supply or return ducts as part of a multi-zone HVAC setup using a compatible zone control panel. The damper is appropriate for residential new construction and retrofit zoning projects where duct dimensions match the 22 x 8 inch opening. Licensed HVAC technicians install this damper as part of a complete zoning system.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e24-volt operation compatible with standard zone control panels\u003c\/li\u003e\n  \u003cli\u003eLED indicator for visual confirmation of damper position during commissioning\u003c\/li\u003e\n  \u003cli\u003eSide-mounted motor with 3-wire connection for straightforward wiring\u003c\/li\u003e\n  \u003cli\u003eNylon bushings for quieter operation and extended motor life\u003c\/li\u003e\n  \u003cli\u003eRectangular form factor fits 22 x 8 inch duct openings\u003c\/li\u003e\n  \u003cli\u003eSturdier frame construction for faster and more secure duct installation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style motorized zone damper for rectangular duct systems requiring a 22 x 8 inch damper with 24-volt actuation and 3-wire motor wiring.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eThis damper is installed by licensed HVAC technicians as part of a zoned forced-air system. Before installation, shut down the air handler and de-energize the zone control panel at the disconnect or breaker. Secure the damper firmly in the duct using sheet metal screws through the frame, and verify low-voltage wiring connections to the zone panel match the 3-wire motor configuration per the zone controller manufacturer wiring diagram. Confirm LED operation during system startup to validate damper actuation before closing up the duct.\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: 22 x 8 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 indicator light\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eApplication\u003c\/strong\u003e: Air quality \/ zone airflow control\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-22X8\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"EWC CONTROLS","offers":[{"title":"Default Title","offer_id":51345817469234,"sku":"END-22X8","price":259.79,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/310554921.jpg?v=1782063838","url":"https:\/\/voomisupply.com\/products\/ewc-controls-end-22x8-nd-motorized-damper-22x8-in","provider":"Voomi Supply","version":"1.0","type":"link"}