The unit features a threshold adjustment potentiometer

this OEM Lennox replacement part is built to original factory specifications to ensure seamless compatibility with Lennox

Simplified Troubleshooting: Integrated diagnostic LED provides immediate feedback

preventing equipment damage and ensuring safe operational temperature rise

The 042N4230 is the updated version of the 042N4221

Mcquay Daikin 049751001 Ignition Board Els PW 29614 The unit features a thresholdThe McQuay Daikin 049751001 Ignition Board is a critical OEM replacement part engineered for reliable burner management in high performance heating sequences. As a specialized heating system ignition control, this board regulates gas flow and flame detection to ensure safe and efficient combustion cycles. Designed for precise compatibility with Daikin McQuay equipment, it functions as the central logic for burner ignition modules, receiving thermostat