Lochinvar & A.O. Smith 100304140 Control Board
The Lochinvar & A.O. Smith 100304140 Control Board is a critical main control board designed for high-efficiency Knight Fire Tube boilers, specifically the WHB285 and KHB285 models. As a central component of the SMART SYSTEM™ operating control, this board manages complex hydronic functions, including 10:1 turndown ratio modulation, blower speeds, and gas valve timing. It effectively processes real-time data from water temperature sensors and flame sensors to maintain a 95% AFUE efficiency rating while ensuring safe ignition sequences. This direct replacement PCB is engineered for seamless integration with existing Loch-N-Link™ USB programming, allowing technicians to transfer parameters between units quickly. Transitioning to this updated 100304140 module resolves common boiler communication errors and erratic firing issues, providing stable voltage regulation for the ECM variable speed pump and other critical 120V system components. Rely on this authentic 100304140 board to restore the modulating burner performance and advanced diagnostics required for professional-grade commercial and residential boiler maintenance.
Key Benefits:
- Precise Modulation Control: Manages the 10:1 turndown ratio to optimize fuel consumption and minimize short-cycling.
- Advanced Diagnostics: Fully compatible with color-coded SMART SYSTEM™ displays for rapid troubleshooting and error code identification.
- System Protection: Monitors flue gas temperatures and outlet water sensors to prevent overheating and equipment stress.
- Integration Ready: Supports CON·X·US® remote connectivity and Modbus communication for streamlined building management integration.
- Direct OEM Fit: Exact physical and electrical match for WHB285 and KHB285 series, ensuring reliable igniter timing and flame rectification.
Common Questions:
Which boiler models use the 100304140 control board?
This board is primarily designed for the Lochinvar Knight Fire Tube series, specifically the WHB285 and KHB285 models (both Natural Gas and Propane units).
Does this board require specialized programming during installation?
Yes, while it is a direct replacement, technicians should use the Loch-N-Link™ USB feature to upload site-specific parameters or manually configure the SMART SYSTEM™ settings to match the original unit’s requirements.
Can I use this board to resolve "No Flame" or sensor communication faults?
If diagnostics point to a failure in processing signals from the flame ionizer or NTC sensors, replacing the main control board often restores the necessary communication path for safe ignition.
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: $365.95
-65%$365.95
$128.08Lochinvar & A.O. Smith 100304140 Control Board
The Lochinvar & A.O. Smith 100304140 Control Board is a critical main control board designed for high-efficiency Knight Fire Tube boilers, specifically the WHB285 and KHB285 models. As a central component of the SMART SYSTEM™ operating control, this board manages complex hydronic functions, including 10:1 turndown ratio modulation, blower speeds, and gas valve timing. It effectively processes real-time data from water temperature sensors and flame sensors to maintain a 95% AFUE efficiency rating while ensuring safe ignition sequences. This direct replacement PCB is engineered for seamless integration with existing Loch-N-Link™ USB programming, allowing technicians to transfer parameters between units quickly. Transitioning to this updated 100304140 module resolves common boiler communication errors and erratic firing issues, providing stable voltage regulation for the ECM variable speed pump and other critical 120V system components. Rely on this authentic 100304140 board to restore the modulating burner performance and advanced diagnostics required for professional-grade commercial and residential boiler maintenance.
Key Benefits:
- Precise Modulation Control: Manages the 10:1 turndown ratio to optimize fuel consumption and minimize short-cycling.
- Advanced Diagnostics: Fully compatible with color-coded SMART SYSTEM™ displays for rapid troubleshooting and error code identification.
- System Protection: Monitors flue gas temperatures and outlet water sensors to prevent overheating and equipment stress.
- Integration Ready: Supports CON·X·US® remote connectivity and Modbus communication for streamlined building management integration.
- Direct OEM Fit: Exact physical and electrical match for WHB285 and KHB285 series, ensuring reliable igniter timing and flame rectification.
Common Questions:
Which boiler models use the 100304140 control board?
This board is primarily designed for the Lochinvar Knight Fire Tube series, specifically the WHB285 and KHB285 models (both Natural Gas and Propane units).
Does this board require specialized programming during installation?
Yes, while it is a direct replacement, technicians should use the Loch-N-Link™ USB feature to upload site-specific parameters or manually configure the SMART SYSTEM™ settings to match the original unit’s requirements.
Can I use this board to resolve "No Flame" or sensor communication faults?
If diagnostics point to a failure in processing signals from the flame ionizer or NTC sensors, replacing the main control board often restores the necessary communication path for safe ignition.
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 Lochinvar & A.O. Smith 100304140 Control Board is a critical main control board designed for high-efficiency Knight Fire Tube boilers, specifically the WHB285 and KHB285 models. As a central component of the SMART SYSTEM™ operating control, this board manages complex hydronic functions, including 10:1 turndown ratio modulation, blower speeds, and gas valve timing. It effectively processes real-time data from water temperature sensors and flame sensors to maintain a 95% AFUE efficiency rating while ensuring safe ignition sequences. This direct replacement PCB is engineered for seamless integration with existing Loch-N-Link™ USB programming, allowing technicians to transfer parameters between units quickly. Transitioning to this updated 100304140 module resolves common boiler communication errors and erratic firing issues, providing stable voltage regulation for the ECM variable speed pump and other critical 120V system components. Rely on this authentic 100304140 board to restore the modulating burner performance and advanced diagnostics required for professional-grade commercial and residential boiler maintenance.
Key Benefits:
- Precise Modulation Control: Manages the 10:1 turndown ratio to optimize fuel consumption and minimize short-cycling.
- Advanced Diagnostics: Fully compatible with color-coded SMART SYSTEM™ displays for rapid troubleshooting and error code identification.
- System Protection: Monitors flue gas temperatures and outlet water sensors to prevent overheating and equipment stress.
- Integration Ready: Supports CON·X·US® remote connectivity and Modbus communication for streamlined building management integration.
- Direct OEM Fit: Exact physical and electrical match for WHB285 and KHB285 series, ensuring reliable igniter timing and flame rectification.
Common Questions:
Which boiler models use the 100304140 control board?
This board is primarily designed for the Lochinvar Knight Fire Tube series, specifically the WHB285 and KHB285 models (both Natural Gas and Propane units).
Does this board require specialized programming during installation?
Yes, while it is a direct replacement, technicians should use the Loch-N-Link™ USB feature to upload site-specific parameters or manually configure the SMART SYSTEM™ settings to match the original unit’s requirements.
Can I use this board to resolve "No Flame" or sensor communication faults?
If diagnostics point to a failure in processing signals from the flame ionizer or NTC sensors, replacing the main control board often restores the necessary communication path for safe ignition.
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.
