critical for maintaining proportional output signals in robust HVACR systems

This is the copper tube assembly only

it is designed strictly for refrigerant pressure monitoring

We recommend checking restrictor flow during every seasonal calibration cycle to ensure peak performance

Williams P296201 Switch critical for maintaining proportional outputThe Williams P296201 Switch is a mission critical differential temperature switch designed specifically for Williams Forsaire Counterflow top vent and Magnum High Efficiency furnace models. This genuine OEM replacement part functions as a high limit safety and blower control, featuring a fixed 165F setpoint for circuit interruption or activation, with a precise 35F differential. When the heat exchanger reaches the 165F threshold, the switch engages or