This specific part number is designed as a direct OEM replacement for York systems

For steam applications up to 15 psi

a fouled or degraded S1-2845-3111 is a primary cause of repetitive ignition failure and system lockouts

Precise Electrical Tapping: Features standard 1/4" quick-connect terminals for rapid

ensuring seamless integration with the existing wiring harness

Weil McLain 511-624-303 Pressure Switch Els PW 17895 This specific part number isThe Weil McLain 511 624 303 Pressure Switch is a critical safety component specifically designed for Weil McLain CGi series boilers, most notably the CGi 5 model. This SPST (Single Pole Single Throw) switch is factory calibrated to a set point of 1. 12" WC (Water Column), ensuring the inducer motor is moving sufficient combustion air before the ignition sequence initiates. Featuring a dual 1 4" barb connection, this OEM replacement part provides a