This axial fan blade features a counter-clockwise (CCW) rotation and is designed with a 1/2-inch bore on the intake side

this unit is designed to interrupt the burner circuit the moment a low-water condition is detected

Verify your transformer output before installation to prevent board failure

ensuring full functional interchangeability

it allows for finite modulation in complex hydronic and steam systems

Siemens Combustion LFL1.335-110V Control 319825-402 This axial fan blade featuresThe Siemens Combustion LFL1. 335 110V Control is a specialized 120V gas burner control engineered for the management and supervision of forced draft burners and atmospheric burners of medium to high capacity. This electro mechanical primary flame safeguard is essential for multistage or modulating burners in intermittent operation, requiring a controlled shutdown every 24 hours. Professionals rely on the LFL1. 335 for its ability to provide precise