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featuring a nominal -1
This assembly is factory-calibrated to a 1
Efficient Dehydration: High-grade molecular sieve beads maximize moisture removal from the liquid line
Balanced Port Construction: Prevents pressure drop fluctuations from impacting valve pin alignment for stable performance
It also serves as the official replacement for superseded parts
Lochinvar & A.O. Smith 100110729 Prover Switch 320788-704 featuring a nominal -1The Lochinvar & A. O. Smith 100110729 Prover Switch is a critical safety component designed for high efficiency condensing boilers and commercial water heaters. This OEM pressure switch serves as a blower prover, ensuring the combustion air blower is generating sufficient static pressure to safely vent flue gases before the ignition sequence begins. As the direct updated version for FS6679 1338, this part features a normally open contact configuration
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