the 327972-756 features a manifold kit rated for up to 155

Reliable OEM Performance: Designed as a direct replacement part

Is the 20046601S a drop-in replacement for the 10219801

this switch monitors the incoming gas supply pressure to prevent the burner from firing under insufficient pressure conditions

The kit includes the EL1214-P sensing probe with a long nut

Lochinvar & A.O. Smith 100289391 Pressure Switch 30067439-890 the 327972-756 features a manifoldThe Lochinvar & A. O. Smith 100289391 Pressure Switch is a critical safety component engineered for high efficiency condensing water heaters and commercial boilers. Calibrated to a 0. 55" WC (Water Column) set point, this direct replacement for 100294588 monitors the induced draft blower to ensure proper venting of combustion gases. In the field, this switch is the primary defense against blocked flue conditions and inducer motor failure, preventing