Lochinvar & A.O. Smith 100167772 Control Module 320074-702 this component is designed to
Baker’s notes & crumb story
Description
Lochinvar & A.O. Smith 100167772 Control Module 320074 702 this component is designed to this component is designed to break the furnace circuit if the heat exchanger temperature reaches a 220 degree threshold Enhanced Safety: Built in SPDT auxiliary switch allows for easy integration of status tallies or secondary equipment interlocks