{"product_id":"io-hvac-controls-mbd-2412-manual-balancing-damper-24x12","title":"Io Hvac Controls MBD-2412 Manual Balancing Damper 24x12","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe IO HVAC CONTROLS MBD-2412 is a manual balancing damper sized 24 inches wide by 12 inches tall, designed for airflow regulation in ducted HVAC distribution systems. The damper includes a locking quadrant that holds the blade in a fixed position once the desired airflow setting is reached. This prevents unintended adjustment after commissioning. At 9.45 pounds, the unit is substantial enough for commercial and residential duct installations. Licensed HVAC technicians and sheet metal contractors are the typical installers for this type of balancing hardware.\u003c\/p\u003e\n\u003cp\u003eManual balancing dampers like the MBD-2412 are used in forced-air systems where individual branch circuits or zones require airflow throttling to achieve proper system balance. This model is suited for rectangular duct openings measuring 24 inches by 12 inches. Typical applications include trunk-and-branch supply systems, VAV bypass circuits, and multizone air distribution networks in both light commercial and residential construction. The locking quadrant is particularly useful in commissioning workflows where technicians set airflow rates at startup and need them to stay fixed.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e24-inch by 12-inch duct opening size for standard rectangular duct fitment\u003c\/li\u003e\n  \u003cli\u003eLocking quadrant holds blade position securely after airflow balancing\u003c\/li\u003e\n  \u003cli\u003eManual operation requires no actuator, wiring, or control signal\u003c\/li\u003e\n  \u003cli\u003eWeighs 9.45 pounds, built for durable in-duct installation\u003c\/li\u003e\n  \u003cli\u003eSuitable for supply and return air balancing in ducted forced-air systems\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style manual balancing damper for rectangular duct systems with a 24-inch by 12-inch opening.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is performed by licensed HVAC technicians or sheet metal contractors. Shut down the air handling unit and de-energize the system before cutting into ductwork or securing the damper frame. The damper should be fastened per local mechanical code requirements, referencing SMACNA standards for duct connections. After installation, set the locking quadrant only after system airflow has been measured and verified against design specifications.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDamper Opening Width\u003c\/strong\u003e: 24 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDamper Opening Height\u003c\/strong\u003e: 12 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePackage Width\u003c\/strong\u003e: 14 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePackage Height\u003c\/strong\u003e: 31 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: 9.45 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: IO HVAC CONTROLS\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: MBD-2412\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"IO HVAC CONTROLS","offers":[{"title":"Default Title","offer_id":67952246391090,"sku":"MBD-2412","price":208.52,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/ba3d4f3cbb8cf1c8856a9e660a2c3e26_62a28d75-25d6-4e50-b7b4-a804d20b49af.png?v=1791750515","url":"https:\/\/voomisupply.com\/products\/io-hvac-controls-mbd-2412-manual-balancing-damper-24x12","provider":"Voomi Supply","version":"1.0","type":"link"}