{"product_id":"io-hvac-controls-hd-bm-na-2014-zone-damper-20x14-bottom-mount","title":"Io Hvac Controls HD-BM-NA-2014 Zone Damper 20x14 Bottom Mount","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe IO HVAC CONTROLS HD-BM-NA-2014 is a two-position zone damper sized at 20 x 14 inches, designed for bottom-mount installation without an actuator included. It accepts a 5\/8-inch to 1\/2-inch shaft, giving installers flexibility when pairing it with a separately sourced actuator. Zone dampers like this one control airflow distribution in ducted HVAC systems by opening or closing to direct conditioned air to specific zones. Licensed HVAC technicians install this component as part of a zoning system, typically in residential or light commercial forced-air applications where independent temperature control per zone is required.\u003c\/p\u003e\n\u003cp\u003eThis damper is suited for rectangular duct installations where a bottom-mount configuration is necessary due to duct orientation or access constraints. It fits into zoning systems that use two-position control signals, meaning the damper moves to a fully open or fully closed position based on the zone thermostat demand. The no-actuator configuration allows the installer to select and mount a compatible actuator separately, which is useful when upgrading existing dampers or matching a specific zone control board output. Typical install locations include trunk lines, branch ducts, and plenum takeoffs in residential forced-air systems.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eTwo-position operation for fully open or fully closed airflow control\u003c\/li\u003e\n  \u003cli\u003eBottom-mount design accommodates specific duct orientations and tight spaces\u003c\/li\u003e\n  \u003cli\u003eCompatible with 5\/8-inch and 1\/2-inch actuator shafts\u003c\/li\u003e\n  \u003cli\u003eShips without actuator, allowing pairing with installer-specified or zone-board-matched actuator\u003c\/li\u003e\n  \u003cli\u003e20 x 14 inch damper size fits standard rectangular duct dimensions\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style replacement or new-installation zone damper for rectangular ducted residential and light commercial forced-air HVAC zoning systems requiring a bottom-mount, two-position damper with a 5\/8-inch to 1\/2-inch shaft interface.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation should be performed by a licensed HVAC technician. Power down the air handler and zone control board before mounting the damper or connecting any actuator. Verify shaft diameter compatibility before securing the actuator to avoid binding or slippage during operation. Follow local mechanical codes and the zone control system manufacturer wiring instructions when completing the actuator connection.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDamper Size\u003c\/strong\u003e: 20 x 14 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMount Type\u003c\/strong\u003e: Bottom Mount\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eActuator\u003c\/strong\u003e: Not Included\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShaft Size\u003c\/strong\u003e: 5\/8 inch to 1\/2 inch\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOperation Type\u003c\/strong\u003e: Two-Position\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePackage Width\u003c\/strong\u003e: 21 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePackage Height\u003c\/strong\u003e: 22 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: 9.04 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: HD-BM-NA-2014\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"IO HVAC CONTROLS","offers":[{"title":"Default Title","offer_id":67950259798322,"sku":"HD-BM-NA-2014","price":237.29,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/dfc267a04b5a03da4e75e1fa41af6494_7ff5cf3c-dc34-4bdc-a634-2572d2a5f5a4.png?v=1791711184","url":"https:\/\/voomisupply.com\/products\/io-hvac-controls-hd-bm-na-2014-zone-damper-20x14-bottom-mount","provider":"Voomi Supply","version":"1.0","type":"link"}