Pay in 4 interest-free payments of $35.78 Learn more
Ships within 48 hours · Estimated delivery Oct 31 - Nov 5
this valve is essential for systems requiring precise load matching or protection against low evaporating pressures
Built with a durable ABS housing and rated for operating temperatures between 40
Optimized Flow: Restores factory-standard flow characteristics (5
and mixed air control
Always verify the shell model before installation to ensure a proper seal
Lochinvar & A.O. Smith 100288429 Switch R-134A this valve is essential forThe 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.
