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and a flammable vapor sensor
System Protection: Helps prevent heat exchanger overheating by maintaining strict control over fan "on" and "off" delays
Common indicators include the unit failing to spark after the blower starts
intermittent blower relay failure
Lochinvar & A.O. Smith 100208378 Pressure Switch 318518-761 and a flammable vapor sensorThe Lochinvar & A. O. Smith 100208378 Pressure Switch is a critical OEM safety component engineered for precise airflow monitoring in high efficiency boilers and water heating systems. This switch is factory calibrated to a 4. 10" WC (Water Column) set point, ensuring the inducer fan generates sufficient negative pressure for safe combustion. As a direct cross reference for part 100166100, it serves as a standard replacement for several Lochinvar
US$ 387.50
US$ 185.00