Lochinvar & A.O. Smith 100208547 Sensor
The Lochinvar & A.O. Smith 100208547 Sensor is a critical High Limit Outlet Sensor designed for precision temperature monitoring in high-efficiency commercial and residential boilers. This genuine OEM heating system sensor provides essential boiler high-limit protection by tracking outlet water temperatures and triggering an automatic safety shutdown to prevent heat exchanger damage or system failure. Built with a durable brass body and stainless steel probe, this NTC thermistor sensor is engineered to withstand the rigorous thermal cycling of modern hydronic systems, ensuring accurate resistance signals to the control board.
As a direct 100208547 replacement sensor, it is compatible with a wide range of high-performance units, including the Lochinvar Knight KHB, WHB, and A.O. Smith NKC series. It also serves as a direct cross-reference for part numbers 100170550, TST20022, and TST20022K. Professional contractors rely on this Lochinvar temperature sensor for maintaining the operational integrity of condensing boilers and water heaters, ensuring the system remains within safe thermal parameters during peak demand.
Key Benefits:
- Critical Safety Shutdown: Provides reliable high-limit outlet monitoring to prevent system overheating.
- OEM Precision: Guaranteed compatible 10k ohm NTC curve for seamless integration with Lochinvar and A.O. Smith boiler control logic.
- Heavy-Duty Construction: Features a corrosion-resistant brass body and stainless steel probe for long-term immersion service.
- Broad Compatibility: Fits popular series such as Lochinvar KHB055-399, WHB055-399, and NKC110-199.
- Easy Installation: Compact design allows for quick threaded installation in tight boiler manifold spaces.
Common Questions:
What are the symptoms of a failing 100208547 sensor?
Common signs include "High Limit" lockout codes on the boiler display, intermittent cycling, or the boiler failing to fire despite adequate flow, often caused by drifting resistance in the sensor probe.
Can I use this as an inlet sensor?
While functionally similar to some inlet sensors, manufacturers recommend using the 100208547 specifically as a high limit outlet sensor to match the specific safety temperature setpoints of the control firmware.
Does this include the O-ring or gasket?
This is typically the standalone immersion sensor; it is recommended to verify the condition of the existing mounting port before installation to ensure a leak-free seal.
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: $29.28
-65%$29.28
$10.25Lochinvar & A.O. Smith 100208547 Sensor
The Lochinvar & A.O. Smith 100208547 Sensor is a critical High Limit Outlet Sensor designed for precision temperature monitoring in high-efficiency commercial and residential boilers. This genuine OEM heating system sensor provides essential boiler high-limit protection by tracking outlet water temperatures and triggering an automatic safety shutdown to prevent heat exchanger damage or system failure. Built with a durable brass body and stainless steel probe, this NTC thermistor sensor is engineered to withstand the rigorous thermal cycling of modern hydronic systems, ensuring accurate resistance signals to the control board.
As a direct 100208547 replacement sensor, it is compatible with a wide range of high-performance units, including the Lochinvar Knight KHB, WHB, and A.O. Smith NKC series. It also serves as a direct cross-reference for part numbers 100170550, TST20022, and TST20022K. Professional contractors rely on this Lochinvar temperature sensor for maintaining the operational integrity of condensing boilers and water heaters, ensuring the system remains within safe thermal parameters during peak demand.
Key Benefits:
- Critical Safety Shutdown: Provides reliable high-limit outlet monitoring to prevent system overheating.
- OEM Precision: Guaranteed compatible 10k ohm NTC curve for seamless integration with Lochinvar and A.O. Smith boiler control logic.
- Heavy-Duty Construction: Features a corrosion-resistant brass body and stainless steel probe for long-term immersion service.
- Broad Compatibility: Fits popular series such as Lochinvar KHB055-399, WHB055-399, and NKC110-199.
- Easy Installation: Compact design allows for quick threaded installation in tight boiler manifold spaces.
Common Questions:
What are the symptoms of a failing 100208547 sensor?
Common signs include "High Limit" lockout codes on the boiler display, intermittent cycling, or the boiler failing to fire despite adequate flow, often caused by drifting resistance in the sensor probe.
Can I use this as an inlet sensor?
While functionally similar to some inlet sensors, manufacturers recommend using the 100208547 specifically as a high limit outlet sensor to match the specific safety temperature setpoints of the control firmware.
Does this include the O-ring or gasket?
This is typically the standalone immersion sensor; it is recommended to verify the condition of the existing mounting port before installation to ensure a leak-free seal.
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
Shipping & Returns
Shipping & Returns
Description
The Lochinvar & A.O. Smith 100208547 Sensor is a critical High Limit Outlet Sensor designed for precision temperature monitoring in high-efficiency commercial and residential boilers. This genuine OEM heating system sensor provides essential boiler high-limit protection by tracking outlet water temperatures and triggering an automatic safety shutdown to prevent heat exchanger damage or system failure. Built with a durable brass body and stainless steel probe, this NTC thermistor sensor is engineered to withstand the rigorous thermal cycling of modern hydronic systems, ensuring accurate resistance signals to the control board.
As a direct 100208547 replacement sensor, it is compatible with a wide range of high-performance units, including the Lochinvar Knight KHB, WHB, and A.O. Smith NKC series. It also serves as a direct cross-reference for part numbers 100170550, TST20022, and TST20022K. Professional contractors rely on this Lochinvar temperature sensor for maintaining the operational integrity of condensing boilers and water heaters, ensuring the system remains within safe thermal parameters during peak demand.
Key Benefits:
- Critical Safety Shutdown: Provides reliable high-limit outlet monitoring to prevent system overheating.
- OEM Precision: Guaranteed compatible 10k ohm NTC curve for seamless integration with Lochinvar and A.O. Smith boiler control logic.
- Heavy-Duty Construction: Features a corrosion-resistant brass body and stainless steel probe for long-term immersion service.
- Broad Compatibility: Fits popular series such as Lochinvar KHB055-399, WHB055-399, and NKC110-199.
- Easy Installation: Compact design allows for quick threaded installation in tight boiler manifold spaces.
Common Questions:
What are the symptoms of a failing 100208547 sensor?
Common signs include "High Limit" lockout codes on the boiler display, intermittent cycling, or the boiler failing to fire despite adequate flow, often caused by drifting resistance in the sensor probe.
Can I use this as an inlet sensor?
While functionally similar to some inlet sensors, manufacturers recommend using the 100208547 specifically as a high limit outlet sensor to match the specific safety temperature setpoints of the control firmware.
Does this include the O-ring or gasket?
This is typically the standalone immersion sensor; it is recommended to verify the condition of the existing mounting port before installation to ensure a leak-free seal.
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.
