Lochinvar & A.O. Smith 100112148 Switch 340155-7026 which is typical for 1

which is typical for 1 HP HVAC blower applications

allowing for more accurate temperature control in large open commercial zones where the thermostat cannot be mounted in the ideal sensing location

This unit is compatible with standard 2" 4-bolt flange sets

Industrial Durability: Rugged design withstands the high-torque demands of hydronic balancing and automated temperature regulation

Lochinvar & A.O. Smith 100112148 Switch 340155-7026 which is typical for 1The Lochinvar & A. O. Smith 100112148 Switch is a critical safety component designed for high efficiency water heaters and boilers. As a normally open pressure switch, it monitors negative air pressure created by the combustion air blower, ensuring the unit only proceeds to ignition once a proper draft is established. This genuine OEM replacement part is engineered to meet 2" WC specifications, providing the precision required to prevent hazardous gas