Common Questions: Why is my electric furnace blowing cold air

Versatile Signaling: The SPDT contact arrangement allows the switch to be used for both "high-limit" safety shutoffs and "low-limit" airflow proofing

preventing premature wear on the control board and internal components

maintaining operational efficiency in commercial environments

EWC Controls URD-12 Damper Els PW 29614 Common Questions: Why is myThe EWC Controls URD 12 Damper is a professional grade 12 inch round motorized zone damper engineered for high performance airflow management in residential and commercial HVAC systems. This power open power closed damper utilizes a 3 wire floating actuator (MA ND5) that delivers 18 in lb of torque, ensuring reliable blade positioning even in high velocity systems. Constructed from heavy duty 24 gauge galvanized steel with rolled stiffening beads, the