Lochinvar & A.O. Smith 100111904 Board 320720-756 Spring-loaded ball style ensures fast

Spring-loaded ball style ensures fast closing response to pressure changes

Durable Construction: Built to withstand the high-cycle demands of modern residential HVAC units

comparing the value to the resistance-to-temperature chart in the service manual

The unit operates on 208-230V

Accumulated particulate matter or bypass air debris can build up on the vanes

Lochinvar & A.O. Smith 100111904 Board 320720-756 Spring-loaded ball style ensures fastThe Lochinvar & A. O. Smith 100111904 Power Distribution Board is a critical OEM replacement part engineered for high performance commercial water heating systems and boiler controls. As a primary voltage distribution center, this board manages the complex electrical pathways necessary for heating cycle regulation and robust system diagnostics. Designed to meet the precise tolerances of Lochinvar and A. O. Smith hydronic systems, it facilitates