Lennox 10M51 Pressure Switch
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 compressor failure or catastrophic system leaks.
Designed for professional-grade reliability, this manual reset pressure switch (M/R) ensures that a technician inspects the system for airflow obstructions or refrigerant issues before operation resumes. The unit comes equipped with 12-inch lead wires and a built-in valve core depressor for direct installation onto standard service ports. Whether you are addressing a Lennox error code 225 or performing preventative maintenance on TCA, THA, or TGA series units, the 10M51 maintains the precise trip points required for high-side safety monitoring.
Key Benefits- Precision Calibration: Reliable 450 PSI cutout protects the compressor from high-side pressure spikes.
- Manual Reset Security: Prevents short-cycling by requiring a manual override after a high-pressure trip.
- Direct Compatibility: Genuine Lennox 10M5101 replacement ensures exact fitment with zero field modifications.
- Durable Construction: Built to withstand the vibrational and thermal stresses of commercial HVACR environments.
What causes a Lennox high-pressure switch to trip?
Common culprits include a dirty outdoor condenser coil, a failing condenser fan motor, or non-condensables in the refrigerant line. Always check for airflow blockages before resetting the switch.
Can I replace a 10M51 with an automatic reset switch?
It is not recommended. The manual reset feature is a safety requirement to ensure the underlying cause of the overpressure is diagnosed by a technician.
Does this switch include the depressor pin?
Yes, this model features an integrated valve core depressor for simplified mounting on the liquid line or discharge service port.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
Original: $36.60
-65%$36.60
$12.81Lennox 10M51 Pressure Switch
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 compressor failure or catastrophic system leaks.
Designed for professional-grade reliability, this manual reset pressure switch (M/R) ensures that a technician inspects the system for airflow obstructions or refrigerant issues before operation resumes. The unit comes equipped with 12-inch lead wires and a built-in valve core depressor for direct installation onto standard service ports. Whether you are addressing a Lennox error code 225 or performing preventative maintenance on TCA, THA, or TGA series units, the 10M51 maintains the precise trip points required for high-side safety monitoring.
Key Benefits- Precision Calibration: Reliable 450 PSI cutout protects the compressor from high-side pressure spikes.
- Manual Reset Security: Prevents short-cycling by requiring a manual override after a high-pressure trip.
- Direct Compatibility: Genuine Lennox 10M5101 replacement ensures exact fitment with zero field modifications.
- Durable Construction: Built to withstand the vibrational and thermal stresses of commercial HVACR environments.
What causes a Lennox high-pressure switch to trip?
Common culprits include a dirty outdoor condenser coil, a failing condenser fan motor, or non-condensables in the refrigerant line. Always check for airflow blockages before resetting the switch.
Can I replace a 10M51 with an automatic reset switch?
It is not recommended. The manual reset feature is a safety requirement to ensure the underlying cause of the overpressure is diagnosed by a technician.
Does this switch include the depressor pin?
Yes, this model features an integrated valve core depressor for simplified mounting on the liquid line or discharge service port.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
Product Information
Product Information
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Description
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 compressor failure or catastrophic system leaks.
Designed for professional-grade reliability, this manual reset pressure switch (M/R) ensures that a technician inspects the system for airflow obstructions or refrigerant issues before operation resumes. The unit comes equipped with 12-inch lead wires and a built-in valve core depressor for direct installation onto standard service ports. Whether you are addressing a Lennox error code 225 or performing preventative maintenance on TCA, THA, or TGA series units, the 10M51 maintains the precise trip points required for high-side safety monitoring.
Key Benefits- Precision Calibration: Reliable 450 PSI cutout protects the compressor from high-side pressure spikes.
- Manual Reset Security: Prevents short-cycling by requiring a manual override after a high-pressure trip.
- Direct Compatibility: Genuine Lennox 10M5101 replacement ensures exact fitment with zero field modifications.
- Durable Construction: Built to withstand the vibrational and thermal stresses of commercial HVACR environments.
What causes a Lennox high-pressure switch to trip?
Common culprits include a dirty outdoor condenser coil, a failing condenser fan motor, or non-condensables in the refrigerant line. Always check for airflow blockages before resetting the switch.
Can I replace a 10M51 with an automatic reset switch?
It is not recommended. The manual reset feature is a safety requirement to ensure the underlying cause of the overpressure is diagnosed by a technician.
Does this switch include the depressor pin?
Yes, this model features an integrated valve core depressor for simplified mounting on the liquid line or discharge service port.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
