Lochinvar & A.O. Smith 100166234 Pressure Switch 30067439-890 including SC and SSCBL series

including SC and SSCBL series heaters

Always verify the furnace ground connection during installation

OEM Compatibility: Exact dimensional match for ICP part 1057877

When diagnosing a furnace burner won’t stay lit condition

Lochinvar & A.O. Smith 100166234 Pressure Switch 30067439-890 including SC and SSCBL seriesThe Lochinvar & A. O. Smith 100166234 is a robust 1. 15" WC SPDT pressure switch designed for critical monitoring in high efficiency heating systems. As a direct OEM replacement part, it is identical to PRS30014 and PRS2424, ensuring seamless integration without field modifications. This diaphragm actuated switch utilizes a Single Pole Double Throw (SPDT) contact configuration, allowing it to function as a safety interlock by verifying proper venting