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Duotone terrace — saffron brief on the left, garden-folded ledger on the right.
Always verify your specific boiler series and size prefix before installation
It is compatible with specific 40 MBH and 80 MBH 95% furnaces but is not intended for use with Ultra LoNOx models
Whether you are performing a routine repair or addressing a complete system outage
covering standard heating and cooling requirements
This component is specifically designed to handle the rigorous duty cycles of industrial thermal management
Resideo 50057547-001 Circuit Board 321894-709 Always verify your specific boilerThe Resideo 50057547 001 Circuit Board is the dedicated control center for the HE300 TrueEASE Fan Humidifier. Designed for precise integration, this 24V replacement control board manages critical system functions, including blower motor activation, solenoid valve sequencing, and humidity level maintenance. As a direct fit HVAC replacement part, it eliminates the need for field modifications, ensuring a standard plug and play installation for
US$ 159.99
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