instantly interrupting the 120V or 230V line voltage circuit when the blower access panel is removed

This normally closed (NC) switch opens the circuit upon reaching the 175°F threshold

Technicians should check for continuity across the terminals when the system pressure is above 44 PSI

which is often lost with generic aftermarket alternatives

Honeywell 14004904-006 Gauge Els PW 17895 instantly interrupting the 120V orThe Honeywell 14004904 006 is a professional grade Pneumatic Receiver Gauge designed for precision monitoring in commercial HVACR control systems. Engineered with a large 2 1 2" diameter face, this instrument provides high visibility for technicians monitoring pneumatic pressure signals. The unit features a specialized 25 125 pound scale, specifically calibrated to translate pressure inputs (typically from a remote temperature sensing bulb or