The Williams P323011 Pilot Valve is the certified OEM direct replacement for the obsolete P172100A gas control

This kit serves as the direct OEM replacement valve for legacy part numbers 998-0510-40 and 998-0510-44

is designed with a black jacket and red stripe to ensure rapid pneumatic circuit identification during multi-line installations

it is compatible with a broad range of brands including Arcoaire

As a standard 3-speed PSC motor

Weil McLain 512-050-235 Fuse 320074-702 The Williams P323011 Pilot ValveThe Weil McLain 512 050 235 is a critical rollout thermal fuse element designed for high limit safety monitoring in gas fired atmospheric boilers and AHE Series 2 and 3 blowers. This thermal cutoff is factory calibrated to trip at a 121C (250F) temperature rating, providing a non resettable safety break if combustion temperatures breach the firebox boundary. As an essential boiler safety device, it functions by interrupting the electrical circuit to