this component is designed to maintain consistent water temperatures while resisting scale buildup in standard water conditions

the 660149R is the correct technical substitute

Frequent tripping is often a symptom of restricted airflow

leak-free seal within the whip chamber assembly

Lennox 57W79 Pressure Switch this component is designed toThe Lennox 57W79 Pressure Switch is a critical OEM safety component engineered for precise inducer draft monitoring in Lennox gas furnaces. Calibrated to a 0. 70" WC activation setpoint, this green pressure switch ensures the combustion blower is establishing sufficient static pressure before allowing the ignition sequence to proceed. As a direct furnace pressure switch replacement, it resolves common fault codes related to airflow verification and