They are interchangeable in all Lochinvar and A

and MR-300B

this control is gas-type neutral as it manages the electrical sequence

Can I use a switch with a different WC rating as a substitute

Does this switch require a specific glass thickness for replacement

Lochinvar & A.O. Smith 100167793 Control R-407A They are interchangeable in allThe Lochinvar & A. O. Smith 100167793 Integrated Control is a critical OEM replacement part designed for high efficiency gas water heaters and boilers. This microprocessor based integrated control board acts as the central command for the unit, regulating ignition sequences, flame monitoring, and temperature modulation to ensure peak thermal efficiency. Specifically engineered for the Lochinvar KBN400 series with serial numbers prior to H10, this