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this SPST (Single Pole Single Throw) control offers the reliability required for consistent heat cycles and minimal thermal overshoot in professional food service environments
and 8-13 psi ranges
Standardized Voltage: Configured for 460V 3-phase systems
Durable Construction: Built with industrial-grade materials to withstand frequent thermal cycling in high-traffic environments
preventing catastrophic motor failure and overheating
Lochinvar & A.O. Smith 100277781 Control 320788-702 this SPST (Single Pole SingleThe 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