Weil McLain 511-624-521 Pressure Switch Els PW 17895 This industrial-grade fan blade provides

This industrial-grade fan blade provides the structural rigidity necessary to resist flexing under high RPMs

This gasket is compatible with several Williams furnace series

OEM Fitment: Eliminates the need for bracket modifications

Does this kit include the relief valve spring

For veteran technicians and contractors maintaining International Comfort Products (ICP) equipment

Weil McLain 511-624-521 Pressure Switch Els PW 17895 This industrial-grade fan blade providesThe Weil McLain 511 624 521 Pressure Switch is a critical safety component designed for precise differential pressure sensing in high efficiency Weil McLain boilers. This SPST (Single Pole Single Throw) air pressure switch is factory calibrated to a 1. 25" W. C. (Water Column) set point, ensuring the vent blower is maintaining adequate airflow before allowing the ignition sequence to proceed. It features dual 1 4" barb connections for secure pneumatic