Bard HVAC 8402-124BX Limit Switch
The Bard HVAC 8402-124BX Limit Switch is a critical safety component designed for high-temperature monitoring in Bard wall-mount units and gas-electric furnaces. Engineered with an L270-30 specification, this fixed-temperature limit control is calibrated to open the electrical circuit at 270°F, protecting the heat exchanger from structural damage and preventing unsafe operating conditions. The 30°F differential ensures the switch resets automatically once the internal plenum temperature drops to 240°F, allowing the system to resume normal operation after the thermal event has cleared. As an OEM HVAC replacement part, it maintains the precise airflow and thermal safety parameters required for Bard heating systems. For technicians troubleshooting limit switch error codes, this component provides the reliable mechanical logic needed to diagnose restricted airflow or blower motor failure. Built for industrial durability, its rugged construction withstands the high-cycling demands of commercial HVACR applications.
Key Benefits- Precise Thermal Protection: Factory-calibrated L270-30 limit switch rating ensures the system shuts down exactly at 270°F to prevent overheating.
- Automatic Reset Logic: Features a 30°F differential that restores system power once temperatures reach safe levels, reducing unnecessary service calls.
- OEM Compatibility: Designed specifically as a Bard 8402-124BX replacement to ensure exact fitment in flame rollout switch and high-limit positions.
- Durable Construction: Engineered to handle the harsh environments of Bard wall-mount HVAC units and industrial gas furnaces.
What does the L270-30 designation mean for this switch?
The "L" stands for Limit. The "270" indicates the temperature in Fahrenheit at which the switch will open to break the circuit, while the "30" represents the differential. The switch will close (reset) once the temperature drops 30 degrees below the trip point.
Can I use this as a replacement for a flame rollout switch?
Yes, in many Bard HVAC models, the 8402-124BX is utilized as a flame rollout limit. However, always verify your specific unit's wiring diagram and parts list to ensure the temperature rating matches the original specification.
Why does my furnace keep tripping this limit switch?
Frequent tripping usually indicates restricted airflow. Check for dirty air filters, blocked return ducts, or a failing blower motor. If airflow is sufficient and the unit is still tripping, the switch may have weakened over time and require replacement.
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: $23.02
-65%$23.02
$8.06Bard HVAC 8402-124BX Limit Switch
The Bard HVAC 8402-124BX Limit Switch is a critical safety component designed for high-temperature monitoring in Bard wall-mount units and gas-electric furnaces. Engineered with an L270-30 specification, this fixed-temperature limit control is calibrated to open the electrical circuit at 270°F, protecting the heat exchanger from structural damage and preventing unsafe operating conditions. The 30°F differential ensures the switch resets automatically once the internal plenum temperature drops to 240°F, allowing the system to resume normal operation after the thermal event has cleared. As an OEM HVAC replacement part, it maintains the precise airflow and thermal safety parameters required for Bard heating systems. For technicians troubleshooting limit switch error codes, this component provides the reliable mechanical logic needed to diagnose restricted airflow or blower motor failure. Built for industrial durability, its rugged construction withstands the high-cycling demands of commercial HVACR applications.
Key Benefits- Precise Thermal Protection: Factory-calibrated L270-30 limit switch rating ensures the system shuts down exactly at 270°F to prevent overheating.
- Automatic Reset Logic: Features a 30°F differential that restores system power once temperatures reach safe levels, reducing unnecessary service calls.
- OEM Compatibility: Designed specifically as a Bard 8402-124BX replacement to ensure exact fitment in flame rollout switch and high-limit positions.
- Durable Construction: Engineered to handle the harsh environments of Bard wall-mount HVAC units and industrial gas furnaces.
What does the L270-30 designation mean for this switch?
The "L" stands for Limit. The "270" indicates the temperature in Fahrenheit at which the switch will open to break the circuit, while the "30" represents the differential. The switch will close (reset) once the temperature drops 30 degrees below the trip point.
Can I use this as a replacement for a flame rollout switch?
Yes, in many Bard HVAC models, the 8402-124BX is utilized as a flame rollout limit. However, always verify your specific unit's wiring diagram and parts list to ensure the temperature rating matches the original specification.
Why does my furnace keep tripping this limit switch?
Frequent tripping usually indicates restricted airflow. Check for dirty air filters, blocked return ducts, or a failing blower motor. If airflow is sufficient and the unit is still tripping, the switch may have weakened over time and require replacement.
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 Bard HVAC 8402-124BX Limit Switch is a critical safety component designed for high-temperature monitoring in Bard wall-mount units and gas-electric furnaces. Engineered with an L270-30 specification, this fixed-temperature limit control is calibrated to open the electrical circuit at 270°F, protecting the heat exchanger from structural damage and preventing unsafe operating conditions. The 30°F differential ensures the switch resets automatically once the internal plenum temperature drops to 240°F, allowing the system to resume normal operation after the thermal event has cleared. As an OEM HVAC replacement part, it maintains the precise airflow and thermal safety parameters required for Bard heating systems. For technicians troubleshooting limit switch error codes, this component provides the reliable mechanical logic needed to diagnose restricted airflow or blower motor failure. Built for industrial durability, its rugged construction withstands the high-cycling demands of commercial HVACR applications.
Key Benefits- Precise Thermal Protection: Factory-calibrated L270-30 limit switch rating ensures the system shuts down exactly at 270°F to prevent overheating.
- Automatic Reset Logic: Features a 30°F differential that restores system power once temperatures reach safe levels, reducing unnecessary service calls.
- OEM Compatibility: Designed specifically as a Bard 8402-124BX replacement to ensure exact fitment in flame rollout switch and high-limit positions.
- Durable Construction: Engineered to handle the harsh environments of Bard wall-mount HVAC units and industrial gas furnaces.
What does the L270-30 designation mean for this switch?
The "L" stands for Limit. The "270" indicates the temperature in Fahrenheit at which the switch will open to break the circuit, while the "30" represents the differential. The switch will close (reset) once the temperature drops 30 degrees below the trip point.
Can I use this as a replacement for a flame rollout switch?
Yes, in many Bard HVAC models, the 8402-124BX is utilized as a flame rollout limit. However, always verify your specific unit's wiring diagram and parts list to ensure the temperature rating matches the original specification.
Why does my furnace keep tripping this limit switch?
Frequent tripping usually indicates restricted airflow. Check for dirty air filters, blocked return ducts, or a failing blower motor. If airflow is sufficient and the unit is still tripping, the switch may have weakened over time and require replacement.
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.
