Lennox 51W93 Pressure Switch 315602 is identical to 315602/U

315602 is identical to 315602/U

and System 450 modules ensures a direct-fit replacement

technicians rely on the S1-7705-3591 to resolve common issues like rapid cycling or lockout codes caused by restricted airflow or failing blowers

it ensures direct compatibility with various gas furnace models

Constructed from high-grade multi-layer aluminum media

Lennox 51W93 Pressure Switch 315602 is identical to 315602/UThe Lennox 51W93 Pressure Switch is a critical safety component designed for precise draft monitoring in high efficiency gas furnaces. Engineered with a 1. 12" WC set point, this SPST (Single Pole Single Throw) switch ensures the inducer motor establishes proper static pressure before allowing the ignition sequence to proceed. As a veteran grade furnace pressure switch replacement, the 51W93 features a dual 1 4" barb connection for secure pneumatic