{"product_id":"io-hvac-controls-rm-2618-rectangular-zone-damper-26x18","title":"Io Hvac Controls RM-2618 Rectangular Zone Damper 26x18","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe IO HVAC CONTROLS RM-2618 is a rectangular zone damper designed for zoned HVAC duct systems. It ships with a Belimo actuator rated for a 35-second stroke cycle and wired for 3-wire control, which supports both normally open and normally closed operation from a compatible zone control board. The damper measures 26 inches wide by 18 inches in duct opening size and weighs 15.73 pounds. Licensed HVAC technicians install this component when segmenting a forced-air system into independently controlled comfort zones.\u003c\/p\u003e\u003cp\u003eThis damper is suited for residential and light-commercial forced-air zoning applications where rectangular duct transitions require a motorized volume control. It fits inline in rectangular ductwork and is actuated by a low-voltage signal from a zone panel or thermostat-driven controller. The 3-wire actuator configuration allows the zone panel to drive the blade both open and closed rather than relying solely on spring return, which is common in multi-zone systems with high duct static pressure.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e26-inch by 18-inch rectangular duct opening for high-volume airflow zones\u003c\/li\u003e\n\u003cli\u003eBelimo actuator with 35-second travel time for smooth, quiet blade operation\u003c\/li\u003e\n\u003cli\u003e3-wire actuator wiring supports active open and active close control\u003c\/li\u003e\n\u003cli\u003eLow-voltage control interface compatible with standard zone control panels\u003c\/li\u003e\n\u003cli\u003eRobust construction at 15.73 pounds suitable for commercial-grade installations\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style rectangular zone damper for forced-air zoning systems requiring a 26-inch by 18-inch inline motorized damper with a 3-wire low-voltage Belimo actuator.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\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 actuator wiring. Verify duct dimensions and support the damper body independently before fastening to avoid stress on the actuator housing. Low-voltage wiring must comply with applicable NEC guidelines for Class 2 circuits.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDuct Opening Width\u003c\/strong\u003e: 26 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\u003eOverall Width\u003c\/strong\u003e: 26 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Height\u003c\/strong\u003e: 33 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Depth\u003c\/strong\u003e: 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\u003eActuator Stroke Time\u003c\/strong\u003e: 35 seconds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 15.73 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: RM-2618\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"IO HVAC CONTROLS","offers":[{"title":"Default Title","offer_id":67950554906930,"sku":"RM-2618","price":420.62,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/745ecffd07cbe47f75f5847deb081dca_2585132a-2713-405c-b5ed-f61b894eb7e2.jpg?v=1791721261","url":"https:\/\/voomisupply.com\/products\/io-hvac-controls-rm-2618-rectangular-zone-damper-26x18","provider":"Voomi Supply","version":"1.0","type":"link"}