it is recommended to use the factory-finished 12-inch length to ensure the ends are square and fire-polished for the best seal

This HVAC high limit control is calibrated to trigger at a high-end threshold of 220°F and reset at 190°F

Engineered specifically for use with the Danfoss CPCE 15 capacity regulator

For shorter runs

Cleveland Control AFS-227-161 Switch Els PW 17895 it is recommended to useThe Cleveland Controls AFS 227 161 is a professional grade proving switch engineered for precision air pressure monitoring in HVAC and energy management systems. Designed to sense positive, negative, or differential air pressure, this SPDT airflow switch features an adjustable set point range from 0. 05" 0. 02" to 12. 0" w. c., providing the technical flexibility required for complex duct static pressure and fan proving applications. The unit utilizes