Precision is critical in furnace safety circuits

this specific kit is designed for the polymer header assembly

you should verify if your local code or specific unit requires a 2-pole replacement

Contractors can utilize this SPST limit control to reduce inventory

Proper orifice sizing is essential for maintaining flame stability and preventing incomplete combustion or soot buildup within the heat exchanger

Cleveland Controls AFS-442 Sensing Switch Precision is critical in furnaceThe Cleveland Controls AFS 442 is a professional grade air pressure sensing switch designed for critical monitoring in HVAC and energy management systems. Engineered for precision, this differential pressure switch features SPDT contacts and an adjustable set point range from 0. 05" w. c. to 2. 0" w. c., making it the industry standard for proving airflow in package burners and furnaces. The AFS 442 is technically identical to the AFS 442 3, ensuring