{"product_id":"io-hvac-controls-cd-2108-rectangular-zone-damper-21x8","title":"Io Hvac Controls cd-2108 Rectangular Zone Damper 21x8","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe IO HVAC CONTROLS cd-2108 is a rectangular zone damper designed for use in ducted HVAC zoning systems. Sized at 21 x 8 inches, it incorporates a Belimo 3-wire actuator for reliable, motorized airflow control. Zone dampers like this one regulate conditioned air delivery to individual zones within a residential or light commercial system, allowing independent temperature management in different areas of a building. Licensed HVAC technicians and zoning system installers are the primary trades working with this component.\u003c\/p\u003e\n\u003cp\u003eThe cd-2108 is sized for rectangular duct applications at 21 x 8 inches, matching common duct trunk and branch dimensions found in residential and light commercial forced-air systems. The factory-mounted Belimo 3-wire actuator eliminates the need for a separate actuator installation, making it suitable for new construction and retrofit zoning projects. This damper is specifically referenced for Carrier and Bryant system applications.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e21 x 8 inch rectangular duct size for common trunk and branch applications\u003c\/li\u003e\n  \u003cli\u003eFactory-mounted Belimo 3-wire actuator included\u003c\/li\u003e\n  \u003cli\u003eMotorized damper blade for precise airflow zone control\u003c\/li\u003e\n  \u003cli\u003eDesigned for Carrier and Bryant ducted zoning systems\u003c\/li\u003e\n  \u003cli\u003eEliminates separate actuator sourcing and field mounting\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for use in Carrier and Bryant rectangular duct zoning systems requiring a 21 x 8 inch damper with a Belimo 3-wire actuator.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation should be performed by a licensed HVAC technician familiar with zoning system wiring and duct modification. Shut down the air handling unit and de-energize the zone control panel before beginning installation. Follow the zoning system manufacturer wiring diagram for proper 3-wire actuator connections. Duct penetrations and damper fitment should be sealed according to local mechanical codes to prevent air bypass.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDamper Size\u003c\/strong\u003e: 21 x 8 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eActuator Type\u003c\/strong\u003e: Belimo 3-Wire\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDamper Shape\u003c\/strong\u003e: Rectangular\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: cd-2108\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"IO HVAC CONTROLS","offers":[{"title":"Default Title","offer_id":51268230283570,"sku":"CD-2108","price":275.37,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/308910714.jpg?v=1780702345","url":"https:\/\/voomisupply.com\/products\/io-hvac-controls-cd-2108-rectangular-zone-damper-21x8","provider":"Voomi Supply","version":"1.0","type":"link"}