Lennox 22W69 Limit
The Lennox 22W69 Limit Control Switch is a mission-critical safety component designed for heavy-duty commercial and industrial HVAC systems. Engineered for precision, this Lennox 100079-02 compatible switch features an L190-40F rating, meaning it is set to open the electrical circuit at 190°F to prevent furnace overheating and automatically reset when the temperature drops to 40°F. Professionals utilize this SPDT limit switch (Single-Pole, Double-Throw) to ensure consistent temperature regulation and protect the heat exchanger from thermal stress.
When troubleshooting HVAC error codes or system rapid cycling, replacing aged or drifted controls with this genuine OEM Lennox part restores the manufacturer's safety sequence. Its robust bimetal construction is built to withstand the harsh environments of forced air heating systems and commercial air handlers. Integrating this high-limit switch into your maintenance routine ensures the inducer, gas valve, and indoor blower operate within safe thermal parameters, significantly reducing equipment downtime and terminal component failure.
Key Benefits:
- Precise L190-40F Operation: Ensures a hard cut-off at 190°F with a reliable reset at 40°F for HVAC safety.
- SPDT Configuration: Versatile switch design supports a variety of wiring setups for Lennox furnaces and PTAC units.
- Bimetal Reliability: Durable sensor reacts quickly to temperature fluctuations, preventing heat exchanger damage.
- Direct OEM Fit: Specifically engineered for compatibility with Lennox 22W69 and 100079-02 specifications.
Common Questions:
What causes a Lennox limit switch to trip frequently?
Frequent tripping is often caused by restricted airflow, such as a clogged HVAC filter, undersized ductwork, or a failing blower motor. If airflow is sufficient and the L190-40F limit still opens, the switch itself may have drifted out of spec.
Is the Lennox 22W69 switch manual or automatic reset?
This model is an automatic reset limit control. It will close the circuit once the ambient temperature at the sensor drops to the 40°F reset point.
Can I use a different length limit switch for this application?
No. In HVACR technical maintenance, the insertion depth is critical. Using a shorter or longer probe can cause delayed sensing or premature tripping, potentially leading to unsafe heat exchanger temperatures.
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 22W69 Limit
The Lennox 22W69 Limit Control Switch is a mission-critical safety component designed for heavy-duty commercial and industrial HVAC systems. Engineered for precision, this Lennox 100079-02 compatible switch features an L190-40F rating, meaning it is set to open the electrical circuit at 190°F to prevent furnace overheating and automatically reset when the temperature drops to 40°F. Professionals utilize this SPDT limit switch (Single-Pole, Double-Throw) to ensure consistent temperature regulation and protect the heat exchanger from thermal stress.
When troubleshooting HVAC error codes or system rapid cycling, replacing aged or drifted controls with this genuine OEM Lennox part restores the manufacturer's safety sequence. Its robust bimetal construction is built to withstand the harsh environments of forced air heating systems and commercial air handlers. Integrating this high-limit switch into your maintenance routine ensures the inducer, gas valve, and indoor blower operate within safe thermal parameters, significantly reducing equipment downtime and terminal component failure.
Key Benefits:
- Precise L190-40F Operation: Ensures a hard cut-off at 190°F with a reliable reset at 40°F for HVAC safety.
- SPDT Configuration: Versatile switch design supports a variety of wiring setups for Lennox furnaces and PTAC units.
- Bimetal Reliability: Durable sensor reacts quickly to temperature fluctuations, preventing heat exchanger damage.
- Direct OEM Fit: Specifically engineered for compatibility with Lennox 22W69 and 100079-02 specifications.
Common Questions:
What causes a Lennox limit switch to trip frequently?
Frequent tripping is often caused by restricted airflow, such as a clogged HVAC filter, undersized ductwork, or a failing blower motor. If airflow is sufficient and the L190-40F limit still opens, the switch itself may have drifted out of spec.
Is the Lennox 22W69 switch manual or automatic reset?
This model is an automatic reset limit control. It will close the circuit once the ambient temperature at the sensor drops to the 40°F reset point.
Can I use a different length limit switch for this application?
No. In HVACR technical maintenance, the insertion depth is critical. Using a shorter or longer probe can cause delayed sensing or premature tripping, potentially leading to unsafe heat exchanger temperatures.
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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Shipping & Returns
Description
The Lennox 22W69 Limit Control Switch is a mission-critical safety component designed for heavy-duty commercial and industrial HVAC systems. Engineered for precision, this Lennox 100079-02 compatible switch features an L190-40F rating, meaning it is set to open the electrical circuit at 190°F to prevent furnace overheating and automatically reset when the temperature drops to 40°F. Professionals utilize this SPDT limit switch (Single-Pole, Double-Throw) to ensure consistent temperature regulation and protect the heat exchanger from thermal stress.
When troubleshooting HVAC error codes or system rapid cycling, replacing aged or drifted controls with this genuine OEM Lennox part restores the manufacturer's safety sequence. Its robust bimetal construction is built to withstand the harsh environments of forced air heating systems and commercial air handlers. Integrating this high-limit switch into your maintenance routine ensures the inducer, gas valve, and indoor blower operate within safe thermal parameters, significantly reducing equipment downtime and terminal component failure.
Key Benefits:
- Precise L190-40F Operation: Ensures a hard cut-off at 190°F with a reliable reset at 40°F for HVAC safety.
- SPDT Configuration: Versatile switch design supports a variety of wiring setups for Lennox furnaces and PTAC units.
- Bimetal Reliability: Durable sensor reacts quickly to temperature fluctuations, preventing heat exchanger damage.
- Direct OEM Fit: Specifically engineered for compatibility with Lennox 22W69 and 100079-02 specifications.
Common Questions:
What causes a Lennox limit switch to trip frequently?
Frequent tripping is often caused by restricted airflow, such as a clogged HVAC filter, undersized ductwork, or a failing blower motor. If airflow is sufficient and the L190-40F limit still opens, the switch itself may have drifted out of spec.
Is the Lennox 22W69 switch manual or automatic reset?
This model is an automatic reset limit control. It will close the circuit once the ambient temperature at the sensor drops to the 40°F reset point.
Can I use a different length limit switch for this application?
No. In HVACR technical maintenance, the insertion depth is critical. Using a shorter or longer probe can cause delayed sensing or premature tripping, potentially leading to unsafe heat exchanger temperatures.
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.
