The S1-063-90037-000 is the structural housing plate only

though it has a higher burst pressure rating for safety overhead

Since each switch (Element A and B) is adjusted independently via its own calibration screw

Replacing a faulty temperature actuated switch with this genuine HH19ZA201 Carrier part restores secondary safety cut-out functionality

Burnham Boiler 60160885 Pressure Switch Els PW 17895 The S1-063-90037-000 is the structuralAlright, let's talk about the Burnham Boiler 60160885 Differential Pressure Switch. This isn't just another part; it's a critical component for maintaining optimal performance and safety in your hydronic heating systems. Engineered for precision, this HVAC pressure switch is designed to accurately monitor and control pressure differentials within your boiler, preventing imbalances that can lead to system inefficiencies or shutdowns. With a factory set