Laars Heating Systems 2400-110 Stack Switch
The Laars Heating Systems 2400-110 Stack Switch is a critical exhaust temperature sensor designed for commercial and residential boiler systems. As an OEM Laars replacement part, this bimetallic stack relay monitors flue gas temperatures to provide essential furnace safety control. Engineered specifically for Mark II H Series (sizes 60-130) and Mark II 9600 models (HWG & CB, sizes 150-250), it ensures the burner only operates when a safe draft and combustion environment are detected. This high-limit switch acts as a primary flame detection device, shutting down the burner motor if it fails to sense the required heat rise within the programmed timing, preventing unburned fuel accumulation. For technicians servicing Teledyne Laars equipment, this 2400-110 stack switch provides a drop-in solution for blower and fan application control, maintaining the integrity of the exhaust vent monitoring system. Its rugged construction is built to withstand the high-cycle thermal stress of hydronic heating systems without drifting from its calibrated setpoints.
Key Benefits- Precise Thermal Sensing: Utilizes bimetallic technology for accurate stack temperature monitoring and rapid response to flame failure.
- System Compatibility: Fully compatible with Laars boiler models H, HW, HP, HWG, and CB, ensuring seamless integration with existing wiring and control boards.
- Enhanced Safety: Acts as a safety lockout control to prevent dangerous fuel buildup in the combustion chamber.
- OEM Reliability: Guaranteed Laars 2400-110 specifications for physical fitment in exhaust vent pipes and blower assemblies.
How do I troubleshoot a Laars 2400-110 stack switch?
If your boiler is short-cycling or stuck in lockout, check the bimetallic probe for soot buildup. Clean the sensor or check the "cold" and "hot" contacts for continuity. If the stack relay 9600 does not sense heat within 90 seconds, it will trip the manual reset.
Can I replace a stack switch with a cad cell primary control?
While stack switches are older technology, they are often required for specific Laars Mark II configurations. If upgrading to a cad cell, verify that your control board supports flame sensor modernization before bypassing the 2400-110.
What causes a stack switch to fail prematurely?
Heavy soot accumulation, excessive vibration from the inducer fan, or high-limit exhaust temperatures can degrade the bimetallic spring. Ensure the vent pipe has proper draft to prevent overheating the switch housing.
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.
Original: $99.08
-65%$99.08
$34.68Laars Heating Systems 2400-110 Stack Switch
The Laars Heating Systems 2400-110 Stack Switch is a critical exhaust temperature sensor designed for commercial and residential boiler systems. As an OEM Laars replacement part, this bimetallic stack relay monitors flue gas temperatures to provide essential furnace safety control. Engineered specifically for Mark II H Series (sizes 60-130) and Mark II 9600 models (HWG & CB, sizes 150-250), it ensures the burner only operates when a safe draft and combustion environment are detected. This high-limit switch acts as a primary flame detection device, shutting down the burner motor if it fails to sense the required heat rise within the programmed timing, preventing unburned fuel accumulation. For technicians servicing Teledyne Laars equipment, this 2400-110 stack switch provides a drop-in solution for blower and fan application control, maintaining the integrity of the exhaust vent monitoring system. Its rugged construction is built to withstand the high-cycle thermal stress of hydronic heating systems without drifting from its calibrated setpoints.
Key Benefits- Precise Thermal Sensing: Utilizes bimetallic technology for accurate stack temperature monitoring and rapid response to flame failure.
- System Compatibility: Fully compatible with Laars boiler models H, HW, HP, HWG, and CB, ensuring seamless integration with existing wiring and control boards.
- Enhanced Safety: Acts as a safety lockout control to prevent dangerous fuel buildup in the combustion chamber.
- OEM Reliability: Guaranteed Laars 2400-110 specifications for physical fitment in exhaust vent pipes and blower assemblies.
How do I troubleshoot a Laars 2400-110 stack switch?
If your boiler is short-cycling or stuck in lockout, check the bimetallic probe for soot buildup. Clean the sensor or check the "cold" and "hot" contacts for continuity. If the stack relay 9600 does not sense heat within 90 seconds, it will trip the manual reset.
Can I replace a stack switch with a cad cell primary control?
While stack switches are older technology, they are often required for specific Laars Mark II configurations. If upgrading to a cad cell, verify that your control board supports flame sensor modernization before bypassing the 2400-110.
What causes a stack switch to fail prematurely?
Heavy soot accumulation, excessive vibration from the inducer fan, or high-limit exhaust temperatures can degrade the bimetallic spring. Ensure the vent pipe has proper draft to prevent overheating the switch housing.
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.
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Description
The Laars Heating Systems 2400-110 Stack Switch is a critical exhaust temperature sensor designed for commercial and residential boiler systems. As an OEM Laars replacement part, this bimetallic stack relay monitors flue gas temperatures to provide essential furnace safety control. Engineered specifically for Mark II H Series (sizes 60-130) and Mark II 9600 models (HWG & CB, sizes 150-250), it ensures the burner only operates when a safe draft and combustion environment are detected. This high-limit switch acts as a primary flame detection device, shutting down the burner motor if it fails to sense the required heat rise within the programmed timing, preventing unburned fuel accumulation. For technicians servicing Teledyne Laars equipment, this 2400-110 stack switch provides a drop-in solution for blower and fan application control, maintaining the integrity of the exhaust vent monitoring system. Its rugged construction is built to withstand the high-cycle thermal stress of hydronic heating systems without drifting from its calibrated setpoints.
Key Benefits- Precise Thermal Sensing: Utilizes bimetallic technology for accurate stack temperature monitoring and rapid response to flame failure.
- System Compatibility: Fully compatible with Laars boiler models H, HW, HP, HWG, and CB, ensuring seamless integration with existing wiring and control boards.
- Enhanced Safety: Acts as a safety lockout control to prevent dangerous fuel buildup in the combustion chamber.
- OEM Reliability: Guaranteed Laars 2400-110 specifications for physical fitment in exhaust vent pipes and blower assemblies.
How do I troubleshoot a Laars 2400-110 stack switch?
If your boiler is short-cycling or stuck in lockout, check the bimetallic probe for soot buildup. Clean the sensor or check the "cold" and "hot" contacts for continuity. If the stack relay 9600 does not sense heat within 90 seconds, it will trip the manual reset.
Can I replace a stack switch with a cad cell primary control?
While stack switches are older technology, they are often required for specific Laars Mark II configurations. If upgrading to a cad cell, verify that your control board supports flame sensor modernization before bypassing the 2400-110.
What causes a stack switch to fail prematurely?
Heavy soot accumulation, excessive vibration from the inducer fan, or high-limit exhaust temperatures can degrade the bimetallic spring. Ensure the vent pipe has proper draft to prevent overheating the switch housing.
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.
