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the 62-3668 minimizes nuisance lockouts by providing a stable Bunsen-type flame that effectively rectifies the flame signal back to the ignition module
Its robust NEMA 1 enclosure protects the snap-acting switch mechanism
Reliable Operation: The pilot-operated floating diaphragm design minimizes wear and improves cycling performance
This genuine Williams replacement part is built to original factory specifications
replacing a compromised cover with the 308118-405 furnace part ensures the inducer blower wheel remains protected and the unit operates at peak efficiency
McDonnell & Miller 51-2-HD Control 30067439-890 the 62-3668 minimizes nuisance lockoutsThe McDonnell & Miller 51 2 HD is a heavy duty head mechanism only (Part Number 135100) designed specifically for field replacement on Series 51 2 mechanical water feeders. This unit is engineered for low pressure steam and hot water boiler applications, supporting systems with a maximum vessel pressure of 35 PSI. As a specialized low water cut off (LWCO) component, it features a snap acting SPDT switch that provides simultaneous feed control and
