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The Lennox 78H55 Transformer is a critical OEM replacement part designed for HVAC 24V control circuits
metal-to-metal seal
Whether you are performing a full V5097 valve train installation or routine maintenance on a commercial safety shut-off valve
Whether you are dealing with a blown furnace transformer due to a shorted contactor or a simple component failure
Rheem-Ruud SP20172 Sensor Kit The Lennox 78H55 Transformer isThe Rheem Ruud SP20172 Sensor Kit is the essential OEM replacement for managing flammable vapor ignition resistance (FVIR) in gas fired water heaters. Designed as a direct supersession for AP13447 3, this flammable vapor sensor (FVS) monitors the environment for volatile substances, triggering a safe shutdown via the gas control valve if high concentrations are detected. A common indicator for a malfunctioning or tripped sensor is the seven flash
US$ 151.95
US$ 103.95
US$ 151.95
US$ 151.95