Armstrong 46K69 Fan and Limit ControlArmstrong 46K69 Fan and Limit Control is a durable HVAC control designed to safely manage the furnace fan and limit switch operations. This reliable component helps regulate airflow and protect equipment with precise shutoff when temperatures reach the preset limit, preventing overheating and extending system life. Engineered for compatibility with Armstrong equipment, it also suits other standard furnace and air handler installations, delivering

this component provides dependable overheat protection for both residential and commercial water heaters

designed to fit AO Smith water heaters

Used on the 61/63/64 Series Low Water Cut-Off/Pump Controller

8 A input current

the unit features a 6-foot capillary

Designed for 1/2 inch nominal size with soldered union x female threaded end connections

designed to provide automatic water-fill control for residential

making it a versatile choice for many gas systems

it provides a dependable interface that guards against overheating while preserving efficiency

McDonnell & Miller SA150-106R Low Water Cut-Off/Pump Controller Bellows Assembly is a precision replacement part designed to protect boilers by accurately sensing water levels and coordinating pump operation

This model delivers precise control for natural gas

Type: Probe-style low water cutoff with solid-state/electronic actuation