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Always verify your model number against the service manual before installation
this board is primarily configured as a safety device for low-water cutoff
burner management system to ensure seamless logic integration
This model features a Single-Pole Double-Throw (SPDT) contact configuration
Lennox 96L73 RTU Transition 321042-401 Always verify your model numberThe Lennox 96L73 RTU Transition is a critical administrative and mechanical interface designed for commercial HVAC equipment. Primarily utilized in Lennox L Series rooftop units, this inducer motor transition ensures a precision seal and aerodynamic path between the combustion air blower and the heat exchanger assembly. High performance Lennox OEM parts like the 96L73 are engineered to withstand the rigorous static pressures and thermal cycling common