{"product_id":"io-hvac-controls-eb-2808-motorized-bypass-damper-28x8","title":"Io Hvac Controls EB-2808 Motorized Bypass Damper 28x8","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe IO HVAC CONTROLS EB-2808 is a heavy-duty motorized bypass damper designed to regulate airflow in zoned HVAC systems. When a zone closes, excess static pressure builds up in the supply duct. This damper opens automatically to redirect that air into a bypass duct, protecting the air handler and maintaining proper system balance. It ships at 11 pounds and has a packaged footprint of 10 inches wide by 35 inches tall by 8 inches deep. Licensed HVAC technicians install this damper as part of a complete zoning setup, typically in light commercial or residential ducted forced-air systems.\u003c\/p\u003e\u003cp\u003eThis damper is sized for a 28-inch by 8-inch duct opening, placing it in the larger range of residential and light commercial bypass applications. It is well-suited for multi-zone systems where pressure relief is required to prevent coil and blower damage when multiple zone dampers close simultaneously. The motorized actuator allows the damper to respond automatically to zone controller signals, eliminating the need for manual adjustment during system operation.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eMotorized operation allows automatic response to zone controller commands without manual intervention\u003c\/li\u003e\n\u003cli\u003eHeavy-duty construction handles the mechanical stress of frequent open-and-close cycling in active zoning systems\u003c\/li\u003e\n\u003cli\u003e28-inch by 8-inch nominal duct opening suits larger residential and light commercial ducted systems\u003c\/li\u003e\n\u003cli\u003eBypass design relieves excess static pressure and protects air handler components during partial-zone operation\u003c\/li\u003e\n\u003cli\u003ePackaged dimensions of 10 inches wide by 35 inches tall by 8 inches deep aid in pre-installation planning and rough-in\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style motorized bypass damper for use with ducted forced-air zoning systems requiring a 28-inch by 8-inch bypass opening.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation should be performed by a licensed HVAC technician familiar with zoned forced-air systems. Shut down the air handler and disconnect power at the disconnect or breaker before beginning any ductwork or wiring. Low-voltage wiring to the zone controller must comply with applicable NEC requirements and the controller manufacturer's wiring instructions. Confirm duct opening dimensions and blade clearance before securing the damper in place.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eNominal Duct Size\u003c\/strong\u003e: 28 x 8 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage Width\u003c\/strong\u003e: 10 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage Height\u003c\/strong\u003e: 35 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage Depth\u003c\/strong\u003e: 8 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 11 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDamper Type\u003c\/strong\u003e: Motorized Bypass\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDuty Rating\u003c\/strong\u003e: Heavy Duty\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: IO HVAC CONTROLS\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: EB-2808\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"IO HVAC CONTROLS","offers":[{"title":"Default Title","offer_id":67950481310002,"sku":"EB-2808","price":409.53,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/c48755c782494323bc8b0480a1692035_1e733fba-33cf-4883-a5b4-d1c2387bc3d3.png?v=1791719183","url":"https:\/\/voomisupply.com\/products\/io-hvac-controls-eb-2808-motorized-bypass-damper-28x8","provider":"Voomi Supply","version":"1.0","type":"link"}