Lochinvar & A.O. Smith 100109816 Pressure Switch 340155-7026 and light oil applications where

and light oil applications where internal wear on the diaphragm or piston assembly compromises pressure holding

Can the differential be adjusted independently of the range

making it a reliable choice for commercial air conditioning and medium-temperature refrigeration applications

Key Benefits Direct OEM Fit: Drop-in replacement for S900-185 ensures no field modifications are needed for mounting or electrical leads

Can I use this to replace a 30 Amp contactor

Lochinvar & A.O. Smith 100109816 Pressure Switch 340155-7026 and light oil applications whereThe Lochinvar & A. O. Smith 100109816 Pressure Switch is a critical OEM replacement part engineered for precise atmospheric monitoring in high efficiency commercial water heaters and boilers. Calibrated to a 6. 5" WC (Water Column) set point, this differential pressure switch acts as a safety critical flue prover, ensuring the combustion blower is generating sufficient negative pressure to safely vent exhaust gases. Designed for compatibility with