By installing this Bunn replacement part

Its steel shell construction provides 500-hour salt spray resistance

this switch is calibrated to open on temperature rise at 195

It is rated for a maximum inlet pressure of 1/2 PSI and provides a versatile outlet pressure range of 5 to 12 inches water column (wc)

Always verify static pressure and airflow before assuming the switch is defective

Belimo AV6-20 Shaft extension By installing this Bunn replacementThe Belimo AV6 20 is a heavy duty shaft extension 170 mm designed for professional HVAC mechanical installations where the standard damper shaft length is insufficient for actuator mounting. This accessory provides a critical 6. 7 inch extension, making it indispensable for deep set dampers or applications with thick insulation. Crafted from galvanized steel, the AV6 20 is engineered to withstand high torque environments without slipping or losing