Honeywell SM11451U PCB (control board)

Honeywell SM11451U board is a specialized electronic module that, based on the part number, belongs to the SM114xx line. The SM114 series includes devices typically used as control boards for gas boilers and heating systems. This model is likely a functional equivalent or revision of the SM11450U board and may be used in Baxi or Westen equipment. In warehouse accounting systems, this board may also be known under part number 534.568.035. About the product: This module is a boiler control board. It performs functions of parameter monitoring, actuator control (pump, valves), and safety. Unlike the SM11450U (which often comes as CS0171B-LS), the SM11451U may have a different firmware or connector configuration, which is critical for compatibility. Key features: Original Honeywell configuration: Guarantees stable operation. Industrial reliability: Designed for long service life and temperature fluctuations. Compatibility check recommendations: Before purchasing, it is strongly recommended to: Visually compare: Compare the board's appearance with photos (connector layout, jumpers, fuses). Check revision: Ensure that the firmware version or marking SM11451U matches your equipment requirements. Confirm replacement: If the old board was marked SM11450U, check with a manager about replacing it with SM11451U, as they may be interchangeable only from a certain boiler revision. Specification Value Manufacturer Honeywell SKU SM11451U Device type Control board / Electronic module Category Electronic boards Honeywell SM11451U board is ready for shipment. For accurate compatibility verification with your boiler, please contact us.