{"product_id":"ewc-controls-esid-8-round-motorized-slip-in-damper-8-in","title":"Ewc Controls ESID-8 Round Motorized Slip-in Damper 8 in","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe EWC CONTROLS ESID-8 is an 8-inch round motorized slip-in damper engineered for retrofit HVAC zoning applications. The damper installs by sliding into a 1.25-inch slot cut into existing round ductwork, making it compatible with installations where full duct replacement is not practical. It features a double-layered blade with an integrated cellular foam sealing gasket for low-leakage performance, rated at less than 5% leakage at static pressures up to 1 inch w.c. The 24-volt AC, 3-wire actuator is UL Listed, power-open and power-close, and rated at 18 inch-pounds of torque. Licensed HVAC technicians and sheet metal contractors are the typical installers.\u003c\/p\u003e\n\u003cp\u003eThe ESID-8 is suited for residential and light commercial zoning systems where existing round duct must be retrofitted with motorized dampers to control airflow to individual zones or areas. The adjustable end-stop feature allows technicians to set minimum and maximum blade positions to dial in design CFM for a specific zone without replacing the duct section. The motor housing is NEMA 1 rated, and the actuator includes an integrated terminal block for straightforward low-voltage field wiring.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eSlip-in design installs into a 1.25-inch slot cut in existing round duct — no duct replacement required\u003c\/li\u003e\n  \u003cli\u003eDouble-layered blade with integrated cellular foam gasket for less than 5% leakage at up to 1 inch w.c. static pressure\u003c\/li\u003e\n  \u003cli\u003eUL Listed 24-volt AC power-open \/ power-close actuator rated at 18 inch-pounds of torque\u003c\/li\u003e\n  \u003cli\u003eAdjustable end-stops for minimum and maximum blade position to set design CFM per zone\u003c\/li\u003e\n  \u003cli\u003eOPEN and CLOSE indicator LEDs plus travel indicator provide visual damper position confirmation\u003c\/li\u003e\n  \u003cli\u003eMotor can be oriented at any angle around the duct circumference for installation flexibility\u003c\/li\u003e\n  \u003cli\u003e5-year warranty; manufacturer states no routine maintenance required\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for retrofit installation in 8-inch round duct systems used in residential and light commercial HVAC zoning applications.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation should be performed by a licensed HVAC technician or qualified sheet metal contractor. Shut off the air handler or furnace and de-energize the low-voltage control circuit at the transformer before cutting the duct slot or making wiring connections. A 1.25-inch slot is required in the round duct to accept the damper blade — use appropriate sheet metal tools and follow local mechanical codes. Confirm actuator wiring at the integrated terminal block matches the zone control board wiring scheme before restoring power.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eProduct Type\u003c\/strong\u003e: Slip-In Damper\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShape\u003c\/strong\u003e: Round\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSize\u003c\/strong\u003e: 8 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eVoltage\u003c\/strong\u003e: 24 volts AC\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eActuator Type\u003c\/strong\u003e: Power Open \/ Power Close\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWires to Motor\u003c\/strong\u003e: 3\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTorque Rating\u003c\/strong\u003e: 18 inch-pounds\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMax Static Pressure\u003c\/strong\u003e: 1 inch w.c.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLeakage Rate\u003c\/strong\u003e: Less than 5% at rated static pressure\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMotor Housing Rating\u003c\/strong\u003e: NEMA 1\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eActuator Listing\u003c\/strong\u003e: UL Listed\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eApplication\u003c\/strong\u003e: Air Quality \/ HVAC Zoning\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWarranty\u003c\/strong\u003e: 5 years\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: EWC CONTROLS\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: ESID-8\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"EWC CONTROLS","offers":[{"title":"Default Title","offer_id":51344947020082,"sku":"ESID-8","price":154.77,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/310554851.jpg?v=1782046455","url":"https:\/\/voomisupply.com\/products\/ewc-controls-esid-8-round-motorized-slip-in-damper-8-in","provider":"Voomi Supply","version":"1.0","type":"link"}