{"product_id":"systemair-49905-inline-centrifugal-fan-806-cfm-12-inch","title":"Systemair 49905 Inline Centrifugal Fan 806 Cfm 12 Inch","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe SYSTEMAIR 49905 is a 12-inch inline centrifugal fan designed for ducted ventilation applications in residential and light commercial HVAC systems. Powered by an ECM (electronically commutated motor), it moves 806 CFM of air while consuming significantly less energy than standard PSC motors. The metal housing provides durability in demanding mechanical room and attic installations. This fan is installed by licensed HVAC technicians and sheet metal contractors working on supply, exhaust, or makeup-air duct runs where a compact, high-efficiency inline unit is required.\u003c\/p\u003e\n\u003cp\u003eThe 49905 fits standard 12-inch round duct systems and is suited for kitchen exhaust, bathroom or locker-room ventilation, equipment room air circulation, and general forced-air ducting in both new construction and retrofit projects. Its single-phase, 120-volt power requirement makes wiring straightforward on standard residential and light commercial circuits. The ECM motor delivers consistent airflow with reduced noise and lower operating costs compared to conventional motor types.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eECM high-efficiency motor reduces energy consumption versus standard PSC inline fans\u003c\/li\u003e\n  \u003cli\u003e806 CFM rated airflow for strong, consistent duct performance\u003c\/li\u003e\n  \u003cli\u003e12-inch duct diameter fits standard round duct connections\u003c\/li\u003e\n  \u003cli\u003eAll-metal housing for durability in mechanical, attic, and utility installations\u003c\/li\u003e\n  \u003cli\u003eSingle-phase, 120-volt operation compatible with standard branch circuits\u003c\/li\u003e\n  \u003cli\u003eInline centrifugal design mounts mid-duct without requiring a dedicated cabinet or plenum box\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style inline centrifugal fan for use with 12-inch round duct systems in residential and light commercial ventilation applications.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation should be performed by a licensed HVAC technician or qualified mechanical contractor. Disconnect and lock out power at the breaker before handling any wiring connections. The fan should be supported independently of the duct using appropriate hangers or brackets to prevent stress on duct connections. Follow local mechanical codes and NEC requirements for branch circuit sizing and disconnect placement.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAirflow\u003c\/strong\u003e: 806 CFM\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDuct Diameter\u003c\/strong\u003e: 12 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eVoltage\u003c\/strong\u003e: 120 volts\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePhase\u003c\/strong\u003e: 1\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMotor Type\u003c\/strong\u003e: ECM High Efficiency\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHousing Material\u003c\/strong\u003e: Metal\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 15.99 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: SYSTEMAIR\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 49905\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SYSTEMAIR","offers":[{"title":"Default Title","offer_id":51383034872114,"sku":"49905","price":1007.58,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/312670658.png?v=1782586224","url":"https:\/\/voomisupply.com\/products\/systemair-49905-inline-centrifugal-fan-806-cfm-12-inch","provider":"Voomi Supply","version":"1.0","type":"link"}