Lochinvar & A.O. Smith 100278134 Control 30067439-890 where a heating only SPST

where a heating only SPST switch is required

Maintaining the 1-inch 711 Series Solenoid Valve requires a high-quality GC Valves repair kit to prevent internal bypass and ensure a tight seal

charcoal filters are strictly disposable

The unit includes a 5-foot power cord for installation convenience

Lochinvar & A.O. Smith 100278134 Control 30067439-890 where a heating only SPSTThe Lochinvar & A. O. Smith 100278134 Control is a critical OEM User Interface Control board engineered for precise system management in high efficiency condensing boilers. As a direct replacement for legacy part numbers RLY20136K, RLY20136, and 100189277, this Boiler Control Board provides the necessary digital interface for real time monitoring and adjustment of combustion parameters. This HVAC Replacement Part is a standard component in the