System Signal Integrity: Maintains factory-spec electrical resistance to ensure accurate relay chatter prevention and motor starts

System Safety: Restores proper combustion airflow to prevent premature heat exchanger fatigue and safety switch tripping

Enhanced Safety: Prevents gas valve energization if the venting system is obstructed or the inducer motor fails

provided the service technician applies the correct conversion factor to the flow (SCFH) based on the specific gravity of the gas

The Totally Enclosed Air Over (TEAO) enclosure protects internal windings from environmental debris

EWC Controls URD-14 Damper 318518-761 System Signal Integrity: Maintains factory-specFor high performance zone control, the EWC Controls URD 14 Damper delivers professional grade reliability and precision airflow management. Built for contractors who require a robust solution, this 14 inch round motorized damper features an integrated Poron sealing gasket and a double layered blade design, ensuring a tight seal with less than 2% leakage even in systems with higher static pressures. The 24 gauge galvanized steel construction,