{"product_id":"io-hvac-controls-ld-2018-bm-zone-damper-20x18-2-position","title":"Io Hvac Controls LD-2018-BM Zone Damper 20x18 2 Position","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe IO HVAC CONTROLS LD-2018-BM is a rectangular two-position zone damper designed for zoned HVAC duct systems. It controls airflow by opening or closing in response to a 3-wire actuator signal, allowing individual zones to be conditioned independently. The actuator includes an LED indicator for quick visual confirmation of damper position during commissioning or service. The bottom-mount actuator configuration suits installations where access from below the duct is more practical. This damper ships at 11 pounds and fits a 20-inch by 18-inch rectangular duct opening.\u003c\/p\u003e\n\u003cp\u003eThis damper is installed in residential and light commercial forced-air zoning systems where a central air handler serves multiple independently controlled zones. Typical applications include new construction zoning layouts and retrofit zone-control projects where rectangular duct runs feed separate areas of a structure. Licensed HVAC technicians install this component as part of a complete zone control system alongside a zone control board and room thermostats.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eTwo-position operation opens or closes fully for straightforward zone control\u003c\/li\u003e\n  \u003cli\u003e3-wire actuator provides reliable, direct zone control board integration\u003c\/li\u003e\n  \u003cli\u003eLED indicator on actuator confirms damper position without additional test tools\u003c\/li\u003e\n  \u003cli\u003eBottom-mount actuator placement simplifies access in overhead or tight duct runs\u003c\/li\u003e\n  \u003cli\u003eRectangular form factor fits standard 20-inch by 18-inch duct openings\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 duct systems requiring a 20-inch by 18-inch two-position damper with a 3-wire actuator interface.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation should be performed by a licensed HVAC technician familiar with zoned forced-air systems. Shut down the air handler and de-energize the zone control panel before connecting or disconnecting the actuator wiring. Verify the actuator wiring matches the zone control board terminal designations before restoring power. Follow local mechanical codes and manufacturer wiring diagrams when integrating the damper into an existing or new zoning system.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDuct Opening Width\u003c\/strong\u003e: 20 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDuct Opening Height\u003c\/strong\u003e: 18 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDamper Shape\u003c\/strong\u003e: Rectangular\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eActuator Type\u003c\/strong\u003e: 3 Wire\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eActuator Position\u003c\/strong\u003e: Bottom Mount\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOperation\u003c\/strong\u003e: 2 Position\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLED Indicator\u003c\/strong\u003e: Yes\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: 25 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\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: LD-2018-BM\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"IO HVAC CONTROLS","offers":[{"title":"Default Title","offer_id":67950443102514,"sku":"LD-2018-BM","price":289.41,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/87434551ce229afb9558d3baad520579_4f3f32fa-c63d-4d79-9400-b7fb539b16d1.png?v=1791717943","url":"https:\/\/voomisupply.com\/products\/io-hvac-controls-ld-2018-bm-zone-damper-20x18-2-position","provider":"Voomi Supply","version":"1.0","type":"link"}