Enhanced Safety: Built-in lockout mechanisms monitor the cad cell flame sensor to prevent fuel accumulation in the combustion chamber

ensuring your pneumatic controls respond accurately to controller signals

Common Questions: What boilers use the 560-528-989 orifice

EA51-00000-000

Lochinvar & A.O. Smith 100111120 Pressure Switch 326058-758 Enhanced Safety: Built-in lockout mechanismsThe Lochinvar & A. O. Smith 100111120 is a high precision . 80" WC air pressure switch designed for critical safety monitoring in gas fired water heaters and residential or commercial boilers. As a veteran technician knows, the pressure switch is the primary safety interlock that verifies the inducer motor is moving sufficient combustion air through the heat exchanger before allowing the ignition sequence to proceed. This OEM component is calibrated