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this "one-shot" high limit control provides a definitive fail-safe
maintaining consistent burner performance even in demanding residential or commercial applications
Technicians should check for intermittent relay failure or "GV Relay Fail" error codes on the display
making it highly versatile for LBP
Direct-fit Fulton boiler parts configuration minimizes installation labor and field modifications
Siemens Building Technology QFA3212.EWNN Sensor 322838-754 this "one-shot" high limit controlThe Siemens Building Technology QFA3212. EWNN Sensor is a precision engineered room relative humidity and temperature sensor designed for demanding commercial HVACR applications. Built for high traffic environments where tamper resistance is a priority, this no display (blank front) unit provides reliable environmental monitoring without the risk of unauthorized adjustments. It utilizes a capacitive polymer sensing element for humidity and a 1k Ohm