single-phase PSC motor specifically engineered for continuous duty in exhaust and supply fan applications

Does this unit require manual calibration after mounting

allowing for rapid return to service in critical fluid control lines

(Energy Cut Off) for maximum safety

Lennox 74W75 Limit Switch 318423-701 single-phase PSC motor specifically engineeredThe Lennox 74W75 Limit Switch is a genuine OEM safety component specifically calibrated to open the circuit at 225F, providing essential high limit protection for your heating system. As a Lennox furnace limit switch replacement, this fixed temperature control prevents the heat exchanger from reaching critical temperatures that could lead to structural fatigue or safety hazards. For technicians, installing a genuine Lennox 74W75 ensures the system