Lochinvar & A.O. Smith 100288429 Switch Refrigerant Key Benefits: Precision Alignment: Engineered

Key Benefits: Precision Alignment: Engineered with a 3-leg configuration to provide a stable housing for 1-9/16" bearings

System Efficiency: Accurate thermal sensing allows for proper modulation

this kit provides a precise S211 high-pressure series repair solution compatible with standard 3/8"

or system lockouts caused by pressure switches detecting out-of-range parameters

Lochinvar & A.O. Smith 100288429 Switch Refrigerant Key Benefits: Precision Alignment: EngineeredThe Lochinvar & A. O. Smith 100288429 Switch is a critical safety component designed for precise air pressure sensing in high efficiency heating systems. This OEM replacement part is factory calibrated to a 3. 90" water column (WC) set point, serving as a primary air proving switch to ensure the blower motor is moving sufficient combustion air before the ignition sequence begins. Engineered for compatibility with specific Lochinvar boilers and A. O.