Lennox 15G21 Inverter Control 323613-751 DSI) and does not support

DSI) and does not support traditional standing pilot thermocouples

It is engineered to replace legacy and superceded parts including 5KCP39FGV442AS

Oil burners typically require double-pole transformers or different voltage outputs to handle the specific requirements of oil atomization ignition

long-term operation within high-temperature furnace exhaust environments

delivering stable performance across varied duty cycles

Lennox 15G21 Inverter Control 323613-751 DSI) and does not supportThe Lennox 15G21 Inverter Control is a 5HP 230V Inverter Control specifically engineered for high demand variable frequency drive applications in commercial HVACR systems. As a pre programmed VFD replacement kit, it is the direct OEM solution for Lennox LG LC, SG SC, KG KC KH, and TA EL series rooftop units. This Mitsubishi FR D720 series platform provides precise 3 phase motor speed modulation, optimizing HVAC energy efficiency by adjusting frequency