Lochinvar & A.O. Smith 100167851 Board
The Lochinvar & A.O. Smith 100167851 Connection Board is a critical interface component engineered for the SMART SYSTEM control architecture found in high-efficiency condensing boilers and water heaters. As a veteran technician knows, this board serves as the primary low-voltage distribution hub, facilitating seamless communication between the integrated control module and external field-wired devices. It is specifically designed for compatibility with Lochinvar Knight models, including the CCN, CDN, and WHN series, ensuring precise signal handling for low-voltage terminal strip connections, outdoor sensors, and 0-10 VDC BMS inputs.
Constructed to handle the demanding electrical environments of commercial and residential heating installations, this OEM replacement part eliminates intermittent signaling issues often caused by degraded circuit traces or loose terminal contacts. By maintaining the integrity of the boiler control module feedback loop, the 100167851 board supports 10:1 modulation turndown and accurate temperature monitoring, which are essential for maintaining peak system efficiency. When performing a swap, professionals should verify part numbers directly against the unit’s data plate to ensure exact firmware and hardware matching.
Key Benefits- Ensures stable low-voltage terminal strip connections for thermostats and external sensors.
- Supports SMART SYSTEM diagnostics for faster troubleshooting and reduced downtime on-site.
- Robust OEM construction prevents signal drift and communication faults in high-efficiency systems.
- Simplifies the integration of BMS control signals and multi-zone pumping configurations.
Is the 100167851 compatible with all Knight boiler generations?
This board is designed for specific iterations of the Knight and SMART SYSTEM product lines. Always cross-reference your specific model and serial number, as Lochinvar often updates connection board revisions based on manufacture dates.
Does this board control the line voltage pumps directly?
No, this is a connection board for low-voltage signals. It interfaces with the main control module, which then triggers the high-voltage relays for pumps and blowers.
What are the signs of a failing connection board?
Common indicators include "Sensor Open" or "No Flame Signal" errors despite valid sensor readings, or a total loss of communication between the display panel and the main module.
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.
Lochinvar & A.O. Smith 100167851 Board
The Lochinvar & A.O. Smith 100167851 Connection Board is a critical interface component engineered for the SMART SYSTEM control architecture found in high-efficiency condensing boilers and water heaters. As a veteran technician knows, this board serves as the primary low-voltage distribution hub, facilitating seamless communication between the integrated control module and external field-wired devices. It is specifically designed for compatibility with Lochinvar Knight models, including the CCN, CDN, and WHN series, ensuring precise signal handling for low-voltage terminal strip connections, outdoor sensors, and 0-10 VDC BMS inputs.
Constructed to handle the demanding electrical environments of commercial and residential heating installations, this OEM replacement part eliminates intermittent signaling issues often caused by degraded circuit traces or loose terminal contacts. By maintaining the integrity of the boiler control module feedback loop, the 100167851 board supports 10:1 modulation turndown and accurate temperature monitoring, which are essential for maintaining peak system efficiency. When performing a swap, professionals should verify part numbers directly against the unit’s data plate to ensure exact firmware and hardware matching.
Key Benefits- Ensures stable low-voltage terminal strip connections for thermostats and external sensors.
- Supports SMART SYSTEM diagnostics for faster troubleshooting and reduced downtime on-site.
- Robust OEM construction prevents signal drift and communication faults in high-efficiency systems.
- Simplifies the integration of BMS control signals and multi-zone pumping configurations.
Is the 100167851 compatible with all Knight boiler generations?
This board is designed for specific iterations of the Knight and SMART SYSTEM product lines. Always cross-reference your specific model and serial number, as Lochinvar often updates connection board revisions based on manufacture dates.
Does this board control the line voltage pumps directly?
No, this is a connection board for low-voltage signals. It interfaces with the main control module, which then triggers the high-voltage relays for pumps and blowers.
What are the signs of a failing connection board?
Common indicators include "Sensor Open" or "No Flame Signal" errors despite valid sensor readings, or a total loss of communication between the display panel and the main module.
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 Lochinvar & A.O. Smith 100167851 Connection Board is a critical interface component engineered for the SMART SYSTEM control architecture found in high-efficiency condensing boilers and water heaters. As a veteran technician knows, this board serves as the primary low-voltage distribution hub, facilitating seamless communication between the integrated control module and external field-wired devices. It is specifically designed for compatibility with Lochinvar Knight models, including the CCN, CDN, and WHN series, ensuring precise signal handling for low-voltage terminal strip connections, outdoor sensors, and 0-10 VDC BMS inputs.
Constructed to handle the demanding electrical environments of commercial and residential heating installations, this OEM replacement part eliminates intermittent signaling issues often caused by degraded circuit traces or loose terminal contacts. By maintaining the integrity of the boiler control module feedback loop, the 100167851 board supports 10:1 modulation turndown and accurate temperature monitoring, which are essential for maintaining peak system efficiency. When performing a swap, professionals should verify part numbers directly against the unit’s data plate to ensure exact firmware and hardware matching.
Key Benefits- Ensures stable low-voltage terminal strip connections for thermostats and external sensors.
- Supports SMART SYSTEM diagnostics for faster troubleshooting and reduced downtime on-site.
- Robust OEM construction prevents signal drift and communication faults in high-efficiency systems.
- Simplifies the integration of BMS control signals and multi-zone pumping configurations.
Is the 100167851 compatible with all Knight boiler generations?
This board is designed for specific iterations of the Knight and SMART SYSTEM product lines. Always cross-reference your specific model and serial number, as Lochinvar often updates connection board revisions based on manufacture dates.
Does this board control the line voltage pumps directly?
No, this is a connection board for low-voltage signals. It interfaces with the main control module, which then triggers the high-voltage relays for pumps and blowers.
What are the signs of a failing connection board?
Common indicators include "Sensor Open" or "No Flame Signal" errors despite valid sensor readings, or a total loss of communication between the display panel and the main module.
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.
