An open circuit (infinite resistance) indicates a tripped or failed switch

Broad Compatibility: Fits a wide range of Carrier HVAC equipment

Utilizing a genuine Reznor 197030 helps maintain the factory-specified safety sequence and equipment efficiency in demanding commercial and industrial environments

Ensure your unit heater serial number matches the Reznor HVAC replacement parts catalog for seamless electrical and mechanical integration

generic motors lack the proprietary Bard OEM specifications required to communicate with the system's control logic

Lennox 10M51 Pressure Switch 326058-756 An open circuit (infinite resistance)The Lennox 10M51 Pressure Switch is a high limit safety control engineered for demanding refrigeration and air conditioning applications. This OEM Lennox replacement part features a Single Pole Double Throw (SPDT) contact configuration, offering versatile electrical integration for monitoring system critical points. Factory calibrated to actuate at 450 PSI, the 10M51 provides essential protection against overpressure conditions that can lead to