model X11873B5B

If you are seeing furnace error codes related to an open limit

it is designed to manage both 2-pipe and 4-pipe configurations

Pressure Stability: Maintains the necessary vacuum/pressure seal to prevent intermittent pressure switch errors and system lockdowns

allowing for a 7°F to 55°F variance between cut-in and cut-out settings to prevent short-cycling

Copeland Comfort Control (White Rodgers) 36C03U-333 Valve Els PW 17895 model X11873B5BThe Copeland Comfort Control (White Rodgers) 36C03U 333 Gas Valve is a 750 mV millivolt gas valve designed for high capacity standing pilot systems. This universal replacement gas valve features a straight through design with 1 2" x 3 4" NPT threads and includes reducer bushings to handle various manifold configurations in the field. Engineered for multi application flexibility, it serves as a direct replacement for B67RA192, 36C03U 300, and