Williams P200400 Selector Switch potentially allowing contaminants into the

potentially allowing contaminants into the rest of the pneumatic loop

Operating at a standard 120V rating

the point can be trimmed with a sharp blade to prevent mechanical binding against the housing

this fitting ensures a secure

Common Questions Is the QwikCheck QT2000 compatible with newer HFC and HFO refrigerants

Williams P200400 Selector Switch potentially allowing contaminants into theThe Williams P200400 F145 30F Selector Switch is a critical temperature actuated control engineered specifically for Williams Forsaire Direct Vent Wall Furnaces and high performance HVAC systems. This OEM Williams P200400 component functions as a dual point thermal safety and operational interface, maintaining precise system thresholds at 145F and 30F. Built with a robust toggle mechanism, it serves as a protective switch to safeguard heat exchangers