Lennox 47W64 Limit Control
The Lennox 47W64 Limit Control is a critical safety component engineered for high-limit thermal protection in Lennox HVAC units. This fixed-temperature limit switch features an L210-30F configuration, meaning it is designed to open the electrical circuit at 210°F and automatically reset when the temperature drops by a 30°F differential. Built for durability in high-cycle environments, this manual reset limit control prevents heat exchanger overheating, ensuring system integrity and operator safety. It serves as a direct replacement for various OEM Lennox furnace parts, offering a precise fit and reliable terminal connections for professional contractors. When diagnosing furnace limit switch tripping, verifying the airflow across the heat exchanger is essential, as this thermal cut-out switch is calibrated to strict tolerances. Integrating this genuine Lennox replacement part ensures the heating system maintains compliance with original equipment specifications and safety standards during peak demand cycles.
Key Benefits for Technicians:
- Precise Thermal Calibration: The L210-30F rating ensures accurate high-limit protection, preventing premature failure or safety hazards.
- Direct OEM Compatibility: Engineered specifically as a Lennox 47W64 replacement to maintain system certification and electrical clearances.
- Reliable Snap-Action Logic: High-quality internal bimetal disc provides crisp making and breaking of contacts to prevent electrical pitting.
- Industrial Grade Construction: Built to withstand the temperature fluctuations common in residential and commercial ducted heating systems.
Common Technical Questions:
What causes a Lennox 47W64 limit switch to trip frequently?
Frequent tripping is usually indicative of restricted airflow, such as a clogged filter, undersized ductwork, or a failing blower motor, rather than a faulty limit control.
Can the L210-30F be substituted with a different temperature rating?
Field substitutions of heat ratings are not recommended. Utilizing a switch with a higher limit can lead to heat exchanger damage, while a lower limit will cause nuisance tripping.
Is the 47W64 compatible with specific Lennox G-series furnaces?
Yes, this part is commonly found in various G-series and SLP models. Always verify the specific Lennox part number in the service manual to ensure the mounting footprint and temperature range match.
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: $21.62
-65%$21.62
$7.57Lennox 47W64 Limit Control
The Lennox 47W64 Limit Control is a critical safety component engineered for high-limit thermal protection in Lennox HVAC units. This fixed-temperature limit switch features an L210-30F configuration, meaning it is designed to open the electrical circuit at 210°F and automatically reset when the temperature drops by a 30°F differential. Built for durability in high-cycle environments, this manual reset limit control prevents heat exchanger overheating, ensuring system integrity and operator safety. It serves as a direct replacement for various OEM Lennox furnace parts, offering a precise fit and reliable terminal connections for professional contractors. When diagnosing furnace limit switch tripping, verifying the airflow across the heat exchanger is essential, as this thermal cut-out switch is calibrated to strict tolerances. Integrating this genuine Lennox replacement part ensures the heating system maintains compliance with original equipment specifications and safety standards during peak demand cycles.
Key Benefits for Technicians:
- Precise Thermal Calibration: The L210-30F rating ensures accurate high-limit protection, preventing premature failure or safety hazards.
- Direct OEM Compatibility: Engineered specifically as a Lennox 47W64 replacement to maintain system certification and electrical clearances.
- Reliable Snap-Action Logic: High-quality internal bimetal disc provides crisp making and breaking of contacts to prevent electrical pitting.
- Industrial Grade Construction: Built to withstand the temperature fluctuations common in residential and commercial ducted heating systems.
Common Technical Questions:
What causes a Lennox 47W64 limit switch to trip frequently?
Frequent tripping is usually indicative of restricted airflow, such as a clogged filter, undersized ductwork, or a failing blower motor, rather than a faulty limit control.
Can the L210-30F be substituted with a different temperature rating?
Field substitutions of heat ratings are not recommended. Utilizing a switch with a higher limit can lead to heat exchanger damage, while a lower limit will cause nuisance tripping.
Is the 47W64 compatible with specific Lennox G-series furnaces?
Yes, this part is commonly found in various G-series and SLP models. Always verify the specific Lennox part number in the service manual to ensure the mounting footprint and temperature range match.
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.
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Description
The Lennox 47W64 Limit Control is a critical safety component engineered for high-limit thermal protection in Lennox HVAC units. This fixed-temperature limit switch features an L210-30F configuration, meaning it is designed to open the electrical circuit at 210°F and automatically reset when the temperature drops by a 30°F differential. Built for durability in high-cycle environments, this manual reset limit control prevents heat exchanger overheating, ensuring system integrity and operator safety. It serves as a direct replacement for various OEM Lennox furnace parts, offering a precise fit and reliable terminal connections for professional contractors. When diagnosing furnace limit switch tripping, verifying the airflow across the heat exchanger is essential, as this thermal cut-out switch is calibrated to strict tolerances. Integrating this genuine Lennox replacement part ensures the heating system maintains compliance with original equipment specifications and safety standards during peak demand cycles.
Key Benefits for Technicians:
- Precise Thermal Calibration: The L210-30F rating ensures accurate high-limit protection, preventing premature failure or safety hazards.
- Direct OEM Compatibility: Engineered specifically as a Lennox 47W64 replacement to maintain system certification and electrical clearances.
- Reliable Snap-Action Logic: High-quality internal bimetal disc provides crisp making and breaking of contacts to prevent electrical pitting.
- Industrial Grade Construction: Built to withstand the temperature fluctuations common in residential and commercial ducted heating systems.
Common Technical Questions:
What causes a Lennox 47W64 limit switch to trip frequently?
Frequent tripping is usually indicative of restricted airflow, such as a clogged filter, undersized ductwork, or a failing blower motor, rather than a faulty limit control.
Can the L210-30F be substituted with a different temperature rating?
Field substitutions of heat ratings are not recommended. Utilizing a switch with a higher limit can lead to heat exchanger damage, while a lower limit will cause nuisance tripping.
Is the 47W64 compatible with specific Lennox G-series furnaces?
Yes, this part is commonly found in various G-series and SLP models. Always verify the specific Lennox part number in the service manual to ensure the mounting footprint and temperature range match.
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.
