Direct Replacement: Engineered to replace superseded part numbers 47-102077-02 and 47-102077-05 without modifying the control box

as a 2-pole thermostat

Industry-Standard 189-227 Microfarad Range: Provides consistent starting torque for medium to large tonnage compressors

1" water column for exact system balancing

Lennox 49W66 Control Board R-410A Direct Replacement: Engineered to replaceThe Lennox 49W66 Ignition Control Board is the heavy duty OEM replacement for legacy 790 311 and 102186 01 modules. Designed for direct spark ignition (DSI) systems, this 24VAC control board is a critical integrated component for Lennox GCS16 rooftop units and commercial series. It features a 30 second pre purge cycle and an 8 second ignition trial, providing precise timing to ensure safe combustion. As a veteran grade HVAC replacement part, it