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With a 21-ohm coil resistance and water-resistant housing
While the valve can function in various positions
Its compact solid core design allows for seamless integration into Lennox and Allied units
Manual Reset Safety: Prevents automatic recycling in an overheat condition
Testing with a multimeter should show a specific resistance value based on ambient temperature
MARS 43331 Pressure Switch 320819-301 With a 21-ohm coil resistanceThe MARS 43331 Pressure Switch is a professional grade high pressure cutout designed for heavy duty HVACR applications. Engineered for precision, this SPST normally closed control features a fixed setpoint that triggers an open on pressure rise at 400 PSI and provides an automatic reset when system pressure drops to 300 PSI. This encapsulated pressure control is built to withstand harsh environments, utilizing a hermetically sealed sensor to ensure