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Is professional installation required for this heat exchanger
it is frequently utilized for low water cutoff and alarm functions in boiler and cooling tower loops
it is engineered for specific A
designed specifically for high-efficiency unit heater applications
Fenwal 35-605311-221 Module 319847-401 Is professional installation required forUpgrade your gas fired appliance's reliability with the Fenwal 35 605311 221, a microprocessor based Direct Spark Ignition (DSI) control specifically engineered for precision and safety. This 24 VAC module replaces older, less stable ignition boards in furnaces, boilers, and water heaters, offering a robust 30 second pre purge cycle to clear the combustion chamber before the 4 second Trial For Ignition (TFI). As a veteran grade gas ignition module, it
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