Its snap-action bimetal disc design provides responsive switching

How do I adjust the pressure setting for this unit

The "B" indicates the basic model

ensuring stable control air quality

Williams P321942 Limit Switch 326010-701 Its snap-action bimetal disc designThe Williams P321942 Limit Switch is a critical OEM safety component engineered for Williams Forsaire Direct Vent Wall Furnaces and 6007 Series counterflow units. This temperature sensitive switch, classified as an L210 40F limit switch, monitors plenum air temperature to prevent heat exchanger damage and hazardous overheating conditions. As a technical HVAC replacement part, it is designed with a normally closed contact configuration that opens the