Lochinvar & A.O. Smith 100346570 Control Valve 319848-301 or restricted airflow in the

or restricted airflow in the vent pipe

OEM Compatibility: Guaranteed fit for select 59MN

vital for system efficiency

used to prevent overheating

the Maxitrol M420B-1/2 ensures smooth gas flow modulation without the "hunting" often associated with inferior controls

Lochinvar & A.O. Smith 100346570 Control Valve 319848-301 or restricted airflow in theThe Lochinvar & A. O. Smith 100346570 Natural Gas Control Valve is a genuine OEM replacement engineered for high recovery residential and commercial water heating systems. As the direct replacement for 100339497, this Ultra Low NOx (ULN) gas valve features a 1 inch CAV (Constant Air Velocity) configuration. Designed for precision fuel regulation, it integrates a 750 millivolt generator power source and an internal spark igniter to ensure consistent