Lochinvar & A.O. Smith 100166244 Pressure Switch 30067439-890 not a hot surface ignitor

not a hot surface ignitor (HSI)

This Powers repair kit provides a direct OEM replacement to ensure the valve body maintains its low-lead compliance and 100% seating integrity

How do I test if a 120Z0464 crankcase heater is functioning properly

40" WC calibration for reliable safety circuit closure

this specific model is calibrated for R-22 refrigerant pressure-temperature characteristics

Lochinvar & A.O. Smith 100166244 Pressure Switch 30067439-890 not a hot surface ignitorThe Lochinvar & A. O. Smith 100166244 is a critical OEM boiler replacement part engineered for precise air pressure monitoring within high efficiency heating systems. This 1. 06" WC SPDT pressure switch is a factory certified component designed to ensure the inducer motor or blower is generating sufficient draft before allowing the ignition sequence to proceed. As a Single Pole Double Throw (SPDT) configuration, it provides versatile switching logic,