{"product_id":"io-hvac-controls-rrd-05-round-retro-zone-damper-5-in","title":"Io Hvac Controls RRD-05 Round Retro Zone Damper 5 in","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe IO HVAC CONTROLS RRD-05 is a 5-inch round retro zone damper designed for residential and light-commercial HVAC zoning systems. It controls airflow in round duct branches, allowing a zone controller to open or close the damper blade and direct conditioned air only where it is needed. The unit ships with a 35-second Belimo 3-wire actuator pre-installed, so the assembly arrives ready to drop into an existing duct run without sourcing a separate actuator. Licensed HVAC technicians typically install this component during zone-system retrofits or new zoned-duct installations.\u003c\/p\u003e\n\u003cp\u003eThe RRD-05 fits into round duct runs where a 5-inch damper is required. It is well suited for retrofit applications, as the name suggests, making it a practical choice when adding zoning to an existing forced-air system without major ductwork modifications. The Belimo 3-wire actuator supports floating-point control signals, which are common on most residential and light-commercial zone control boards. An HVAC technician performing a zone-system upgrade or replacement will find this damper compatible with standard low-voltage zoning wiring practices.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e5-inch round duct sizing for common residential and light-commercial branch runs\u003c\/li\u003e\n  \u003cli\u003ePre-installed Belimo 3-wire actuator eliminates the need for a separate actuator purchase\u003c\/li\u003e\n  \u003cli\u003e35-second actuator stroke time provides smooth, reliable damper operation\u003c\/li\u003e\n  \u003cli\u003eRetro-fit design allows installation into existing round ductwork\u003c\/li\u003e\n  \u003cli\u003e3-wire floating-point control signal compatible with most residential zone control boards\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style replacement or retrofit zone damper for 5-inch round duct HVAC zoning systems using Belimo 3-wire actuator-compatible zone control boards.\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 and low-voltage control wiring. Shut down the air handler and disconnect power to the zone control board before beginning any duct or wiring work. The damper must be inserted and secured into the round duct section before low-voltage actuator leads are connected to the zone controller. Follow the zone control board manufacturer's wiring diagram for proper 3-wire actuator termination.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDuct Size\u003c\/strong\u003e: 5 inches round\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eActuator Type\u003c\/strong\u003e: Belimo 3-wire floating-point\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eActuator Stroke Time\u003c\/strong\u003e: 35 seconds\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePackage Width\u003c\/strong\u003e: 12 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePackage Height\u003c\/strong\u003e: 12 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePackage Depth\u003c\/strong\u003e: 4 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 2 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: RRD-05\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"IO HVAC CONTROLS","offers":[{"title":"Default Title","offer_id":67952826286386,"sku":"RRD-05","price":144.35,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/fe4d0583c4e9e56b8a9f172f22451cf1_3f1e9c28-5144-4429-94e8-f7f72d7e620b.png?v=1791752263","url":"https:\/\/voomisupply.com\/products\/io-hvac-controls-rrd-05-round-retro-zone-damper-5-in","provider":"Voomi Supply","version":"1.0","type":"link"}