{"product_id":"io-hvac-controls-td-2018-rectangular-zone-damper-20x18","title":"Io Hvac Controls TD-2018 Rectangular Zone Damper 20x18","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe IO HVAC CONTROLS TD-2018 is a rectangular zone damper designed for residential and light commercial HVAC zoning applications. It ships with a 60-second Belimo 3-wire actuator pre-mounted, providing reliable blade control for supply or return air distribution. Measuring 20 inches wide by 18 inches tall, this damper fits standard rectangular ductwork in forced-air systems. The 3-wire actuator configuration allows both open and closed position control, making it compatible with most conventional zone control boards. Licensed HVAC technicians typically install this damper as part of a multi-zone system retrofit or new construction zoning layout.\u003c\/p\u003e\u003cp\u003eThis damper is sized for 20 by 18 inch rectangular duct openings commonly found in residential and light commercial forced-air systems. It is specifically designed for use in Trane and American Standard zoning applications where OEM-style fitment and actuator compatibility are required. The included Belimo actuator provides consistent, repeatable blade positioning with a 60-second travel time, suitable for both cooling and heating season operation in ducted split systems and air handlers.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003ePre-mounted 60-second Belimo 3-wire actuator for reliable open and closed blade control\u003c\/li\u003e\n\u003cli\u003eSized for 20 by 18 inch rectangular duct openings\u003c\/li\u003e\n\u003cli\u003e3-wire actuator wiring compatible with standard zone control boards\u003c\/li\u003e\n\u003cli\u003eOEM-style replacement designed for Trane and American Standard zoning systems\u003c\/li\u003e\n\u003cli\u003eRectangular construction fits standard sheet metal supply and return duct configurations\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style replacement zone damper for Trane and American Standard rectangular duct zoning systems requiring a 20 by 18 inch damper with a 3-wire Belimo actuator.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation should be performed by a licensed HVAC technician. Shut down the air handler or furnace and set the thermostat to off before cutting into ductwork or making any wiring connections. Secure the damper into the duct using sheet metal screws and seal all edges with foil-backed tape to prevent bypass air. Wire the actuator to the zone control board per the board manufacturer wiring diagram, following NEC low-voltage wiring requirements.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDamper Width\u003c\/strong\u003e: 20 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDamper Height\u003c\/strong\u003e: 18 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\u003eActuator Travel Time\u003c\/strong\u003e: 60 seconds\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: 26 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: 12 pounds\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\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: TD-2018\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"IO HVAC CONTROLS","offers":[{"title":"Default Title","offer_id":67948463718706,"sku":"TD-2018","price":331.13,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/50bbd6f74b2edbde3fa9d504fe30cd5d_6c454e87-fb7c-4689-9a8d-440cf285512b.jpg?v=1791664421","url":"https:\/\/voomisupply.com\/products\/io-hvac-controls-td-2018-rectangular-zone-damper-20x18","provider":"Voomi Supply","version":"1.0","type":"link"}