Lennox 63W57 Pressure Switch Els PW 17895 All motors in the parallel

All motors in the parallel sequence should be of the same series to ensure synchronized stroke and timing

The Conbraco Industries 50-502-301 Valve is a 1/2 inch FNPT bronze 2-piece shut-off ball valve engineered for critical main burner gas applications

OEM Integrity: Original equipment manufacturer part ensures compliance with original safety listings and operating specifications

What is the difference between the T4398B1029 and the T4398B1029/U model

High Dielectric Strength: Factory-tested to withstand up to 600 volts on a dry line with no flashover

Lennox 63W57 Pressure Switch Els PW 17895 All motors in the parallelThe Lennox 63W57 Pressure Switch is a critical genuine OEM component engineered for precise furnace diagnostic monitoring. This SPST furnace pressure switch is factory calibrated with a 0. 55 . 95" WC pressure rating, ensuring the inducer motor provides sufficient draft for safe combustion. As a direct replacement for Lennox 56M22, the 63W57 eliminates compatibility guesswork during emergency service calls. It functions as a safety interlock,