Lochinvar & A.O. Smith 100109295 Pilot Assembly 320788-704 A calibrated manometer is required

A calibrated manometer is required to set and verify the manifold pressure after the regulator spring is swapped

If your EHU series humidifier is failing to drain properly

This part is a direct-fit solution for maintaining the electrical integrity of residential and light commercial air handlers and condensing units

reliable ignition of the burner assembly

The Lennox 36A77 Relay is a mission-critical 24V 3PDT relay engineered for precise electrical switching in commercial and residential HVAC systems

Lochinvar & A.O. Smith 100109295 Pilot Assembly 320788-704 A calibrated manometer is requiredThe Lochinvar & A. O. Smith 100109295 Pilot Assembly is a critical combustion component designed for Flammable Vapor (FV) ignition systems. Rated for 190 Deg C, this assembly ensures reliable flame rectification and pilot ignition in high temperature environments. It serves as the direct OEM replacement for part number 9003542105, addressing common failure points in residential water heater pilot burners such as carbon buildup or thermocouple