Lochinvar & A.O. Smith 100166064 Pressure Switch 318172-701 meaning this is a simple

meaning this is a simple on/off switch that closes the circuit once the -1

5:1 to 15:1 ( Factory set at Approximately 5:1 )

the P251-0051 serves as a durable HVAC motor accessory that replaces legacy part numbers including 09DC507163 and HC99AA500

Its fully hermetic

Lochinvar & A.O. Smith 100166064 Pressure Switch 318172-701 meaning this is a simpleThe Lochinvar & A. O. Smith 100166064 Pressure Switch is a critical safety component engineered for precise airflow monitoring in high efficiency water heaters and condensing boilers. Designed to prove the inducer motor draft before the ignition sequence begins, this genuine OEM pressure switch prevents the burner from firing if unsafe venting conditions, such as flue blockages or intake restrictions, are detected. This mechanical to electrical