EWC Controls URD-8 Damper Refrigerant A DC) or visible carbon

A DC) or visible carbon buildup and oxidation on the rod

Teflon washers

Do I still need to change the filter drier

Precision Control: Specifically designed to manage ECM variable speed blower ramps and two-stage gas heating cycles for optimal static pressure management

piecemeal component troubleshooting

EWC Controls URD-8 Damper Refrigerant A DC) or visible carbonThe EWC Controls URD 8 Damper is a professional grade 8 inch round motorized zone damper designed for high performance airflow management in residential and light commercial HVAC zone control systems. Constructed from heavy 24 gauge galvanized steel with factory rolled stiffening beads, this single blade damper is engineered to withstand static pressures up to 1. 5 in WC. It features an integrated Poron sealing gasket and a double layered blade design