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Inspect the nozzle during annual maintenance
this valve ensures reliable operation in low-pressure gas systems ranging from 0 to 25 PSI
you can upgrade from a 40VA or 75VA to this 375VA control transformer as long as the voltage ratings (120V/24V) match
making it an exact drop-in replacement for the G93ASL-4C
Lochinvar & A.O. Smith 100275527 Flue Sensor 319825-402 Inspect the nozzle during annualThe Lochinvar & A. O. Smith 100275527 Flue Sensor with integrated grommet is a critical safety and monitoring component used across high efficiency condensing boilers and commercial water heaters. This negative temperature coefficient (NTC) thermistor provides real time flue gas temperature monitoring to the control board, ensuring the appliance operates within specified thermal limits and prevents heat exchanger damage. Designed as a direct
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