Common Questions What are the electrical requirements for this element

this valve is optimized for R22 systems with a 3

Most failures are caused by restricted airflow due to dirty filters or obstructed ductwork

Featuring a 13 3/16 inch diameter and 12 5/8 inch width

serving as a direct replacement part

Williams P323663 Safety Switch 340155-7026 Common Questions What are theThe Williams P323663 Safety Switch is a critical OEM vent limit protection component designed to maintain the operational safety of your gas fired heating equipment. Engineered as a safety limit switch for Williams wall furnaces and vented room heaters, this part features a high precision sensor that triggers at a fixed 200F temperature. When the exhaust gases in the vent reach this thresholdoften due to a blocked flue or inadequate draftthe switch