{"product_id":"io-hvac-controls-rm-2218-rectangular-zone-damper-22x18","title":"Io Hvac Controls RM-2218 Rectangular Zone Damper 22x18","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe IO HVAC CONTROLS RM-2218 is a rectangular zone damper designed for zoned HVAC duct systems. It ships with a 3-wire Belimo actuator rated at a 35-second stroke time, giving the actuator enough travel speed for responsive zone control without abrupt airflow transitions. The damper body measures 22 x 18 inches and weighs 12.73 pounds. It is installed by licensed HVAC technicians in ducted forced-air systems where independent temperature control is required across multiple zones. The combination of the IO HVAC CONTROLS damper and the integrated Belimo actuator makes this a ready-to-install assembly rather than a field-paired component.\u003c\/p\u003e\n\u003cp\u003eThis damper is suited for residential and light commercial zoning applications where a 22 x 18 inch rectangular duct opening is present. It fits into existing ductwork as part of a multi-zone control system managed by a compatible zone control panel. The 3-wire actuator wiring configuration supports standard spring-return or modulating zone control setups common in split-system and air-handler installations. HVAC contractors installing zone dampers in retrofit or new-construction duct systems will find this assembly ready for connection to low-voltage zone control wiring.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e22 x 18 inch rectangular damper body fits standard duct openings of that size\u003c\/li\u003e\n  \u003cli\u003eIntegrated Belimo actuator eliminates the need for a separately sourced actuator\u003c\/li\u003e\n  \u003cli\u003e3-wire actuator connection supports common zone panel wiring configurations\u003c\/li\u003e\n  \u003cli\u003e35-second actuator stroke time provides smooth, controlled airflow transitions\u003c\/li\u003e\n  \u003cli\u003eFactory-assembled unit reduces field installation time\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 22 x 18 inch damper with a 3-wire Belimo actuator.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation should be performed by a licensed HVAC technician. Shut down the air-handling unit and set the thermostat to off before working in the duct system. Secure the damper body to the duct using appropriate sheet-metal fasteners and seal with foil-backed tape or mastic per local mechanical code requirements. Connect the 3-wire low-voltage actuator leads to the zone control panel according to the panel manufacturer's wiring diagram.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDamper Size\u003c\/strong\u003e: 22 x 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 Stroke Time\u003c\/strong\u003e: 35 seconds\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 12.73 pounds\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: 29 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePackage Depth\u003c\/strong\u003e: 9 inches\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: RM-2218\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"IO HVAC CONTROLS","offers":[{"title":"Default Title","offer_id":67948886786354,"sku":"RM-2218","price":351.96,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/745ecffd07cbe47f75f5847deb081dca_8cbc8bc3-082e-4546-bf79-2fedb5fc394d.jpg?v=1791675961","url":"https:\/\/voomisupply.com\/products\/io-hvac-controls-rm-2218-rectangular-zone-damper-22x18","provider":"Voomi Supply","version":"1.0","type":"link"}