On the secondary side

When replacing an existing unit

7" WC setpoint

This 24VAC power relay features a robust 10A contact rating

changing the temperature rating of a damper may requires approval from the local authority having jurisdiction (AHJ) to maintain its UL listing

White-Rodgers 3F05-2 Fan Switch On the secondary sideThe White Rodgers 3F05 2 is a heavy duty adjustable snap disc fan control engineered for high reliability air management in HVAC systems and industrial heating units. As a high performance 3 4 inch fan switch, this 74T12 310709 model features a single pole single throw (SPST) configuration with a close on rise switch action. It provides a field adjustable temperature range from 140F to 180F and a fixed 20F differential, ensuring precise fan cycling