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Expanded Outlet Design: A 1-1/2" outlet reduces backpressure and allows for greater flow rates compared to standard pipe sizes
providing essential overpressure protection for downstream equipment
this high-performance component is the administrative direct replacement for CTR1138
protecting the integrity of your pipework and reducing noise during operation
Lochinvar & A.O. Smith 100158115 Pressure Switch 340155-7024 Expanded Outlet Design: A 1-1/2"Maintaining proper combustion and safety protocols in high efficiency water heating systems requires precision components like the Lochinvar & A. O. Smith 100158115 Pressure Switch. This genuine OEM replacement part is a normally closed (N. C.) air pressure switch factory calibrated to a 1. 42" WC (Water Column) set point. It serves as a blocked inlet air pressure switch, functioning as a critical safety limit that monitors the differential pressure
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