Laars Heating Systems 2400-226 Limit Switch
The Laars Heating Systems 2400-226 Limit Switch is a mission-critical 155F CO AUTO Limit Switch designed for high-precision temperature regulation in HVACR heating systems. Engineered specifically as a low strap-on style component, this OEM replacement part is a standard safety control for Laars HW series boilers and commercial hydronic applications. This automatic reset limit switch is calibrated to interrupt the electrical circuit when internal temperatures reach the fixed 155°F (68°C) threshold, preventing equipment damage and ensuring operational safety during high-demand cycles. As a veteran-grade Laars boiler part, it features a rugged construction that withstands the vibration and thermal stress typical of heavy-duty mechanical rooms. Utilizing genuine Laars replacement parts like the 2400-226 maintains the original engineering specifications of the appliance while providing reliable, long-term over-temperature protection without the need for manual intervention after the system cools to safe operating levels.
Key Benefits- Precise Thermal Cutoff: Fixed 155°F set point provides consistent high-limit protection for boiler heat exchangers.
- Automatic Reset Functionality: Restores circuit continuity automatically once temperatures drop, reducing unnecessary service calls for manual resets.
- Strap-On Mounting: Designed for rapid installation on copper or steel piping, ensuring direct thermal contact for accurate sensing.
- HVAC System Compatibility: Specifically indexed for Laars HW series and compatible Pennant high-efficiency units.
Is the 2400-226 a manual or automatic reset switch?
This is an automatic reset limit switch. It will re-engage the control circuit once the temperature falls below the 155°F threshold without technician intervention.
What symptom indicates this limit switch has failed?
Technicians often find the burner failing to fire or the system cycling on safety lockout. If the switch remains open at ambient temperatures, the internal bimetal disc or contacts have likely failed and require immediate replacement.
Can I use this on a pool heater?
While Laars makes various limits for pool heaters (typically 135°F or 150°F), the 2400-226 is primary for Laars HW series boilers. Always verify the set point and mounting style against the manufacturer’s parts list for your specific model.
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: $132.08
-65%$132.08
$46.23Laars Heating Systems 2400-226 Limit Switch
The Laars Heating Systems 2400-226 Limit Switch is a mission-critical 155F CO AUTO Limit Switch designed for high-precision temperature regulation in HVACR heating systems. Engineered specifically as a low strap-on style component, this OEM replacement part is a standard safety control for Laars HW series boilers and commercial hydronic applications. This automatic reset limit switch is calibrated to interrupt the electrical circuit when internal temperatures reach the fixed 155°F (68°C) threshold, preventing equipment damage and ensuring operational safety during high-demand cycles. As a veteran-grade Laars boiler part, it features a rugged construction that withstands the vibration and thermal stress typical of heavy-duty mechanical rooms. Utilizing genuine Laars replacement parts like the 2400-226 maintains the original engineering specifications of the appliance while providing reliable, long-term over-temperature protection without the need for manual intervention after the system cools to safe operating levels.
Key Benefits- Precise Thermal Cutoff: Fixed 155°F set point provides consistent high-limit protection for boiler heat exchangers.
- Automatic Reset Functionality: Restores circuit continuity automatically once temperatures drop, reducing unnecessary service calls for manual resets.
- Strap-On Mounting: Designed for rapid installation on copper or steel piping, ensuring direct thermal contact for accurate sensing.
- HVAC System Compatibility: Specifically indexed for Laars HW series and compatible Pennant high-efficiency units.
Is the 2400-226 a manual or automatic reset switch?
This is an automatic reset limit switch. It will re-engage the control circuit once the temperature falls below the 155°F threshold without technician intervention.
What symptom indicates this limit switch has failed?
Technicians often find the burner failing to fire or the system cycling on safety lockout. If the switch remains open at ambient temperatures, the internal bimetal disc or contacts have likely failed and require immediate replacement.
Can I use this on a pool heater?
While Laars makes various limits for pool heaters (typically 135°F or 150°F), the 2400-226 is primary for Laars HW series boilers. Always verify the set point and mounting style against the manufacturer’s parts list for your specific model.
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 Laars Heating Systems 2400-226 Limit Switch is a mission-critical 155F CO AUTO Limit Switch designed for high-precision temperature regulation in HVACR heating systems. Engineered specifically as a low strap-on style component, this OEM replacement part is a standard safety control for Laars HW series boilers and commercial hydronic applications. This automatic reset limit switch is calibrated to interrupt the electrical circuit when internal temperatures reach the fixed 155°F (68°C) threshold, preventing equipment damage and ensuring operational safety during high-demand cycles. As a veteran-grade Laars boiler part, it features a rugged construction that withstands the vibration and thermal stress typical of heavy-duty mechanical rooms. Utilizing genuine Laars replacement parts like the 2400-226 maintains the original engineering specifications of the appliance while providing reliable, long-term over-temperature protection without the need for manual intervention after the system cools to safe operating levels.
Key Benefits- Precise Thermal Cutoff: Fixed 155°F set point provides consistent high-limit protection for boiler heat exchangers.
- Automatic Reset Functionality: Restores circuit continuity automatically once temperatures drop, reducing unnecessary service calls for manual resets.
- Strap-On Mounting: Designed for rapid installation on copper or steel piping, ensuring direct thermal contact for accurate sensing.
- HVAC System Compatibility: Specifically indexed for Laars HW series and compatible Pennant high-efficiency units.
Is the 2400-226 a manual or automatic reset switch?
This is an automatic reset limit switch. It will re-engage the control circuit once the temperature falls below the 155°F threshold without technician intervention.
What symptom indicates this limit switch has failed?
Technicians often find the burner failing to fire or the system cycling on safety lockout. If the switch remains open at ambient temperatures, the internal bimetal disc or contacts have likely failed and require immediate replacement.
Can I use this on a pool heater?
While Laars makes various limits for pool heaters (typically 135°F or 150°F), the 2400-226 is primary for Laars HW series boilers. Always verify the set point and mounting style against the manufacturer’s parts list for your specific model.
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.
