Williams 7735 Limit Switch 321142-301 and ensures the longevity of

and ensures the longevity of your burner assembly

While some universal boards may offer similar functionality

and harsh environmental conditions

facility managers can ensure seamless compatibility with existing system controls and sensors

The all-bronze body construction ensures durability in high-demand HVACR environments

Williams 7735 Limit Switch 321142-301 and ensures the longevity ofThe Williams 7735 Limit Switch is a critical OEM replacement part designed for high temperature safety regulation in Williams Forsaire Counterflow top vent furnaces. Engineered with a 330F fixed temperature setpoint and a 5 inch insertion depth, this high limit safety control ensures the combustion chamber does not exceed safe operating parameters. When air temperature reaches the 330F threshold, the switch opens the electrical circuit to the gas