Williams P500472 Limit Switch Non-detergent chemistry prevents sludge buildup

Non-detergent chemistry prevents sludge buildup and protects internal valves from carbonization

Core Protection: Engineered as a Class 2 transformer to limit power delivery and enhance the safety of the low-voltage control loop

this unit serves as a direct professional replacement for EK-164 and CG-164 models

ensuring long-term reliability in demanding HVACR environments

Simplified Installation: Standard 2-pin spade terminal configuration allows for rapid field replacement in tight heat exchanger cabinets

Williams P500472 Limit Switch Non-detergent chemistry prevents sludge buildupMaintain the operational integrity of your heating equipment with the Williams P500472 Limit Switch, a critical OEM replacement part engineered for selective gas fired heating systems. This vent safety switch features a fixed temperature setting of 280F (L280), functioning as a primary safeguard against flue gas spillage and overheating conditions within the venting assembly. Specifically designed for manual reset (M R) operation, this switch requires