The Williams 7131 is a high-performance 4" WC Natural Gas Valve engineered for precise manifold pressure regulation in Williams wall furnaces and floor heaters

System Protection: Effectively stops liquid refrigerant migration to prevent flooded starts and compressor slugging

Precise Pressure Response: High-sensitivity poppet provides accurate regulation even at extremely low pressure differentials

5 HP motor remains within optimal temperature ranges without requiring additional fans or airflow

Precision fitment ensures that 1

Lochinvar & A.O. Smith 100208627 Wire R-410A The Williams 7131 is aThe Lochinvar & A. O. Smith 100208627 Wire is a critical gas valve wire harness engineered for precise communication between the ignition control module and the gas manifold assembly. As a direct OEM replacement part, this harness eliminates the troubleshooting headaches caused by intermittent signal loss or high resistance connections in aging boiler circuits. It is specifically designed for high efficiency hydronic systems, including the Lochinvar