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this control prevents nuisance shutdowns caused by momentary pressure fluctuations during startup or normal cycling
Optimized for commercial water regulation
Superior Metallurgy: Stainless steel construction provides enhanced resistance to oxidation and sulfur-bearing flue gases
Engineered for floating 3-point signal operation
Designed for media temperatures up to 266°F for water and 250°F for low-pressure steam (max 15 psi differential)
Lochinvar & A.O. Smith 100110806 Switch 319848-301 this control prevents nuisance shutdownsThe Lochinvar & A. O. Smith 100110806 BTH 400 Blower Prover Switch is a critical safety component designed specifically for Cyclone BTH 400 commercial water heaters. This normally open, positive air pressure switch acts as a safety interlock, verifying that the combustion air blower is generating sufficient airflow before the ignition sequence is allowed to proceed. By "proving" the blower's operation, it prevents the gas valve from opening if exhaust