Lochinvar & A.O. Smith 100346570 Control Valve 319848-301 used to prevent overheating
Baker’s notes & crumb story
Description
Lochinvar & A.O. Smith 100346570 Control Valve 319848 301 used to prevent overheating used to prevent overheating the Maxitrol M420B 1 2 ensures smooth gas flow modulation without the "hunting" often associated with inferior controls