Lennox 97M59 Discharge
HomeStore

Lennox 97M59 Discharge

Lennox 97M59 Discharge

The Lennox 97M59 Discharge Thermostat (Part #100503-02) is a critical OEM defrost thermostat sensor engineered for precise thermal management in high-demand residential and commercial HVACR systems. This SPST (Single Pole Single Throw) switch provides automated coil protection by monitoring discharge temperatures at the compressor. Specifically calibrated to high-tolerance technical standards, the 97M59 opens at 225°F and closes at 180°F, effectively preventing system failure caused by overheating. Whether you are performing a routine Lennox heat pump repair or replacing a legacy 100503-02 thermostat, this genuine sensor ensures the refrigerant cycle remains within its engineered safety parameters. Its rugged construction allows it to withstand the extreme temperature fluctuations found in discharge lines, maintaining long-term reliability and system efficiency for licensed contractors and service technicians.

Key Benefits:

  • OEM Direct Replacement: Designed specifically as the Lennox catalog replacement for part #100503-02, ensuring seamless mechanical and electrical integration.
  • High-Temperature Calibration: Rapidly interrupts the control circuit when temperatures reach 225°F to safeguard the compressor from thermal damage.
  • Automatic Reset Function: Closes at 180°F to restore standard operations once the unit has successfully returned to safe temperature thresholds.
  • Versatile Compatibility: Fits a wide range of Lennox air conditioners and heat pumps requiring precise discharge line monitoring.

Common Questions:

Which systems are compatible with the Lennox 97M59?
This sensor is a universal fit for several Lennox HVAC models that utilize a discharge thermostat for coil protection. Always verify the part number against your unit’s service manual or schematic.

What is the difference between a defrost sensor and a discharge thermostat?
While often categorized together, the 97M59 specifically monitors the high-side discharge temperature near the compressor to prevent overheating, whereas a standard defrost sensor typically monitors the outdoor coil temperature to initiate a defrost cycle.

Can I use a generic 225/180 thermostat as a substitute?
We recommend using this genuine Lennox 97M59 to ensure the exact set points and mounting configurations required by the original manufacturer are maintained for safety.

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.

$7.09
Lennox 97M59 Discharge
$7.09

Lennox 97M59 Discharge

The Lennox 97M59 Discharge Thermostat (Part #100503-02) is a critical OEM defrost thermostat sensor engineered for precise thermal management in high-demand residential and commercial HVACR systems. This SPST (Single Pole Single Throw) switch provides automated coil protection by monitoring discharge temperatures at the compressor. Specifically calibrated to high-tolerance technical standards, the 97M59 opens at 225°F and closes at 180°F, effectively preventing system failure caused by overheating. Whether you are performing a routine Lennox heat pump repair or replacing a legacy 100503-02 thermostat, this genuine sensor ensures the refrigerant cycle remains within its engineered safety parameters. Its rugged construction allows it to withstand the extreme temperature fluctuations found in discharge lines, maintaining long-term reliability and system efficiency for licensed contractors and service technicians.

Key Benefits:

  • OEM Direct Replacement: Designed specifically as the Lennox catalog replacement for part #100503-02, ensuring seamless mechanical and electrical integration.
  • High-Temperature Calibration: Rapidly interrupts the control circuit when temperatures reach 225°F to safeguard the compressor from thermal damage.
  • Automatic Reset Function: Closes at 180°F to restore standard operations once the unit has successfully returned to safe temperature thresholds.
  • Versatile Compatibility: Fits a wide range of Lennox air conditioners and heat pumps requiring precise discharge line monitoring.

Common Questions:

Which systems are compatible with the Lennox 97M59?
This sensor is a universal fit for several Lennox HVAC models that utilize a discharge thermostat for coil protection. Always verify the part number against your unit’s service manual or schematic.

What is the difference between a defrost sensor and a discharge thermostat?
While often categorized together, the 97M59 specifically monitors the high-side discharge temperature near the compressor to prevent overheating, whereas a standard defrost sensor typically monitors the outdoor coil temperature to initiate a defrost cycle.

Can I use a generic 225/180 thermostat as a substitute?
We recommend using this genuine Lennox 97M59 to ensure the exact set points and mounting configurations required by the original manufacturer are maintained for safety.

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

Shipping & Returns

Description

The Lennox 97M59 Discharge Thermostat (Part #100503-02) is a critical OEM defrost thermostat sensor engineered for precise thermal management in high-demand residential and commercial HVACR systems. This SPST (Single Pole Single Throw) switch provides automated coil protection by monitoring discharge temperatures at the compressor. Specifically calibrated to high-tolerance technical standards, the 97M59 opens at 225°F and closes at 180°F, effectively preventing system failure caused by overheating. Whether you are performing a routine Lennox heat pump repair or replacing a legacy 100503-02 thermostat, this genuine sensor ensures the refrigerant cycle remains within its engineered safety parameters. Its rugged construction allows it to withstand the extreme temperature fluctuations found in discharge lines, maintaining long-term reliability and system efficiency for licensed contractors and service technicians.

Key Benefits:

  • OEM Direct Replacement: Designed specifically as the Lennox catalog replacement for part #100503-02, ensuring seamless mechanical and electrical integration.
  • High-Temperature Calibration: Rapidly interrupts the control circuit when temperatures reach 225°F to safeguard the compressor from thermal damage.
  • Automatic Reset Function: Closes at 180°F to restore standard operations once the unit has successfully returned to safe temperature thresholds.
  • Versatile Compatibility: Fits a wide range of Lennox air conditioners and heat pumps requiring precise discharge line monitoring.

Common Questions:

Which systems are compatible with the Lennox 97M59?
This sensor is a universal fit for several Lennox HVAC models that utilize a discharge thermostat for coil protection. Always verify the part number against your unit’s service manual or schematic.

What is the difference between a defrost sensor and a discharge thermostat?
While often categorized together, the 97M59 specifically monitors the high-side discharge temperature near the compressor to prevent overheating, whereas a standard defrost sensor typically monitors the outdoor coil temperature to initiate a defrost cycle.

Can I use a generic 225/180 thermostat as a substitute?
We recommend using this genuine Lennox 97M59 to ensure the exact set points and mounting configurations required by the original manufacturer are maintained for safety.

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.

Lennox 97M59 Discharge | GSIstore