meaning the module attempted the 15-second trial but failed to sense a flame via rectification

Operating at 115/230V dual voltage

Designed with a split-bobbin construction

a feature often overlooked in generic alternatives

Built for Trane Precedent and Voyager package systems

Ruskin FL165-B Fusable Link 318820-201 meaning the module attempted theThe Ruskin FL165 B Fusable Link is a critical UL classified heat responsive device designed for precise fire safety management. This 165 degree temperature rating link serves as the primary thermal trigger for life safety dampers, ensuring rapid mechanical closure when ambient temperatures reach the 165F set point. Engineered as the direct replacement for FL165 J, the FL165 B update maintains exact physical and performance parity for existing