Lochinvar & A.O. Smith 100277781 Control R-22 Always verify the lead-end or

Always verify the lead-end or shaft-end rotation requirement of your specific blower housing before installation

Ensure the internal SW1 selector matches your clock power

What models does the 0131P00029SP replace

or excessive noise and vibration

this 460V 3-phase motor is purpose-built for heavy-duty applications

Lochinvar & A.O. Smith 100277781 Control R-22 Always verify the lead-end orThe Lochinvar 100277781 Control (Model FB751 1251) is an integrated control board engineered specifically for Crest Heating Boilers. As a critical OEM replacement part, this module manages the firing sequence, ignition control, and safety parameters for high efficiency hydronic systems. This model is a direct boiler part replacement for units with serial numbers beginning with 4015, ensuring seamless integration with existing HVAC wiring harnesses and