Lochinvar & A.O. Smith 100208375 Dual Pressure Switch Hi 1.06 Lo .75″wc

Description

Lochinvar & A.O. Smith Dual Pressure Switch — Part #100208375

The Lochinvar & A.O. Smith 100208375 is an OEM dual pressure switch engineered for precise combustion air and venting pressure monitoring in Lochinvar and A.O. Smith boiler and water heater applications. With a high set point of 1.06″ w.c. and a low set point of 0.75″ w.c., this switch provides two-stage pressure sensing in a single compact assembly, helping to ensure safe and reliable burner operation.

Key Features

• Dual pressure switch design — monitors both high and low pressure thresholds in one unit
• High set point: 1.06″ w.c.
• Low set point: 0.75″ w.c.
• OEM replacement part for Lochinvar and A.O. Smith boilers and water heaters
• Helps protect equipment by verifying proper combustion air pressure and venting conditions before and during burner operation
• Direct drop-in replacement for simplified installation and reduced downtime

Application

Designed as a genuine OEM replacement component, the 100208375 dual pressure switch is intended for use in Lochinvar and A.O. Smith residential and commercial heating equipment. It monitors inducer and venting system pressure to confirm safe operating conditions, shutting down the burner if pressure falls outside the specified range — a critical safety function in modern condensing and non-condensing boilers.

Specifications

• Part Number: 100208375
• Type: Dual Pressure Switch
• High Set Point: 1.06″ w.c.
• Low Set Point: 0.75″ w.c.
• Brand: Lochinvar & A.O. Smith