this specific part is designed for natural gas (NG) water heaters only

water ingress is the leading cause of premature motor failure

by monitoring the heat generated by the increased current in the remaining phases

this wheel provides the exact static pressure needed to purge the heat exchanger and satisfy HVAC pressure switch requirements

Siemens Building Technology ASK791.165 Fusible Link 318973-401 this specific part is designedThe Siemens ASK791. 165 is a precision engineered 165F electrical fusible link designed for integration with UL listed fire and smoke control damper actuators. Built specifically for the OpenAir GJD series, this heat responsive device serves as a critical fail safe within commercial HVAC ventilation systems. When ambient duct temperatures exceed the 165F (74C) threshold, the sensor interrupts power to the actuator, allowing the internal spring return