Utica-Dunkirk 28688 Switch
The Utica-Dunkirk 28688 Switch is a high-limit safety control engineered for precise thermal regulation in hydronic systems and gas-fired boilers. This LMT 3"INSRT L170Deg component features a fixed 170-degree Fahrenheit trip point, serving as a critical safeguard to prevent heat exchanger overheating. Designed for seamless integration into ECR International brands like Utica Boiler and Dunkirk Heating, this switch utilizes a 3-inch insertion probe for direct immersion and rapid response to temperature fluctuations. A standard HVAC limit switch replacement, the 28688 supports 36T01B3 logic, ensuring the burner circuit opens immediately if internal temperatures exceed safe operating parameters. For service technicians, this OEM part provides the exact electrical ratings and mounting footprint required to restore factory system performance. Maintaining the integrity of the safety loop with a genuine Utica Dunkirk part is essential for meeting AHRI ratings and ensuring stable boiler operation under varying load conditions.
Key Benefits
- Precise Thermal Cut-off: The L170Deg limit switch prevents equipment damage by interrupting the ignition circuit at a fixed 170°F threshold.
- OEM Compatibility: Specifically designed for Utica-Dunkirk boiler parts catalogs, ensuring a 1:1 fit with 3-inch insertion requirements.
- Heavy-Duty Construction: Built with industrial-grade materials to withstand the high-temperature environment of a combustion chamber.
- System Protection: Acts as a primary boiler high limit control to maintain safe operating temperatures and prevent hazardous overheating scenarios.
Common Questions
How do I know if my Utica-Dunkirk 28688 switch is faulty?
If your boiler fails to fire and indicates a high-limit lockout code, or if the switch does not show continuity when cool, the 28688 limit switch may be open. Professional diagnostic testing of the safety circuit is recommended.
Can I use a higher temperature limit switch instead of the L170?
No. Using a switch with a higher thermal rating can bypass critical safety margins. Always replace with the exact 170-degree limit switch specified by the manufacturer for your specific model.
Is this switch manually resettable?
The Utica-Dunkirk 28688 is typically an automatic reset limit; however, it is vital to identify the cause of the high-temperature excursion before returning the system to service.
This item is not eligible for free shipping.
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.
Utica-Dunkirk 28688 Switch
The Utica-Dunkirk 28688 Switch is a high-limit safety control engineered for precise thermal regulation in hydronic systems and gas-fired boilers. This LMT 3"INSRT L170Deg component features a fixed 170-degree Fahrenheit trip point, serving as a critical safeguard to prevent heat exchanger overheating. Designed for seamless integration into ECR International brands like Utica Boiler and Dunkirk Heating, this switch utilizes a 3-inch insertion probe for direct immersion and rapid response to temperature fluctuations. A standard HVAC limit switch replacement, the 28688 supports 36T01B3 logic, ensuring the burner circuit opens immediately if internal temperatures exceed safe operating parameters. For service technicians, this OEM part provides the exact electrical ratings and mounting footprint required to restore factory system performance. Maintaining the integrity of the safety loop with a genuine Utica Dunkirk part is essential for meeting AHRI ratings and ensuring stable boiler operation under varying load conditions.
Key Benefits
- Precise Thermal Cut-off: The L170Deg limit switch prevents equipment damage by interrupting the ignition circuit at a fixed 170°F threshold.
- OEM Compatibility: Specifically designed for Utica-Dunkirk boiler parts catalogs, ensuring a 1:1 fit with 3-inch insertion requirements.
- Heavy-Duty Construction: Built with industrial-grade materials to withstand the high-temperature environment of a combustion chamber.
- System Protection: Acts as a primary boiler high limit control to maintain safe operating temperatures and prevent hazardous overheating scenarios.
Common Questions
How do I know if my Utica-Dunkirk 28688 switch is faulty?
If your boiler fails to fire and indicates a high-limit lockout code, or if the switch does not show continuity when cool, the 28688 limit switch may be open. Professional diagnostic testing of the safety circuit is recommended.
Can I use a higher temperature limit switch instead of the L170?
No. Using a switch with a higher thermal rating can bypass critical safety margins. Always replace with the exact 170-degree limit switch specified by the manufacturer for your specific model.
Is this switch manually resettable?
The Utica-Dunkirk 28688 is typically an automatic reset limit; however, it is vital to identify the cause of the high-temperature excursion before returning the system to service.
This item is not eligible for free shipping.
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 Utica-Dunkirk 28688 Switch is a high-limit safety control engineered for precise thermal regulation in hydronic systems and gas-fired boilers. This LMT 3"INSRT L170Deg component features a fixed 170-degree Fahrenheit trip point, serving as a critical safeguard to prevent heat exchanger overheating. Designed for seamless integration into ECR International brands like Utica Boiler and Dunkirk Heating, this switch utilizes a 3-inch insertion probe for direct immersion and rapid response to temperature fluctuations. A standard HVAC limit switch replacement, the 28688 supports 36T01B3 logic, ensuring the burner circuit opens immediately if internal temperatures exceed safe operating parameters. For service technicians, this OEM part provides the exact electrical ratings and mounting footprint required to restore factory system performance. Maintaining the integrity of the safety loop with a genuine Utica Dunkirk part is essential for meeting AHRI ratings and ensuring stable boiler operation under varying load conditions.
Key Benefits
- Precise Thermal Cut-off: The L170Deg limit switch prevents equipment damage by interrupting the ignition circuit at a fixed 170°F threshold.
- OEM Compatibility: Specifically designed for Utica-Dunkirk boiler parts catalogs, ensuring a 1:1 fit with 3-inch insertion requirements.
- Heavy-Duty Construction: Built with industrial-grade materials to withstand the high-temperature environment of a combustion chamber.
- System Protection: Acts as a primary boiler high limit control to maintain safe operating temperatures and prevent hazardous overheating scenarios.
Common Questions
How do I know if my Utica-Dunkirk 28688 switch is faulty?
If your boiler fails to fire and indicates a high-limit lockout code, or if the switch does not show continuity when cool, the 28688 limit switch may be open. Professional diagnostic testing of the safety circuit is recommended.
Can I use a higher temperature limit switch instead of the L170?
No. Using a switch with a higher thermal rating can bypass critical safety margins. Always replace with the exact 170-degree limit switch specified by the manufacturer for your specific model.
Is this switch manually resettable?
The Utica-Dunkirk 28688 is typically an automatic reset limit; however, it is vital to identify the cause of the high-temperature excursion before returning the system to service.
This item is not eligible for free shipping.
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.
