streamlined aesthetic for commercial HVAC systems where tamper resistance and a minimalist profile are required

This is the copper tube assembly only

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

Robust SPNO contact configuration (Normally Open) ensures a reliable circuit path for secondary fan motors or humidifiers

it is designed strictly for refrigerant pressure monitoring

Williams P296201 Switch streamlined aesthetic for commercial HVACThe 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