Lochinvar & A.O. Smith 100289339 Neutralizer 30067439-890 The relay is a plug-in

The relay is a plug-in R8222B module

Rapid Diagnostics: Simplifies troubleshooting for "pressure switch stuck open" or "stuck closed" faults during mid-season service calls

Any visible hairline cracks in the plastic housing require immediate replacement to maintain HVAC system safety

This manual changeover thermostat provides reliable control for commercial HVAC systems

Lochinvar & A.O. Smith 100289339 Neutralizer 30067439-890 The relay is a plug-inThe Lochinvar & A. O. Smith 100289339 Neutralizer is a critical condensate neutralization kit designed for high efficiency condensing boilers and water heaters. Rated for systems up to 300,000 BTU hr (300K BTU), this CN2 300C model efficiently raises the pH level of acidic flue gas condensate, protecting your client's cast iron drains, concrete floors, and septic systems from corrosive damage. This unit serves as the direct OEM replacement for part