Lochinvar & A.O. Smith 100208493 Board
The Lochinvar & A.O. Smith 100208493 Pump Relay Board is a critical OEM replacement component designed for high-demand hydronic heating applications. Rated for 1.5 HP pump motor control, this board serves as the primary switching interface between the boiler's integrated control logic and the external circulation pumps. It is specifically engineered for compatibility with Lochinvar Knight XL KB399-800 and FTXL series boilers, as well as several A.O. Smith boiler models. By regulating voltage supply and managing start-up torque, this industrial-grade relay board ensures efficient water circulation while preventing premature wear on the motor windings. As a direct OEM replacement, it maintains original system specifications for HVAC troubleshooting and localized load management. This board is essential for contractors maintaining commercial boiler pump control systems where precise timing and electrical isolation are required to protect sensitive hydronic heating controls from high-voltage feedback.
Key Benefits- 1.5 HP Power Rating: Robust design capable of handling high-torque starts for substantial commercial circulation pumps.
- OEM Compatibility: Precision-fit for Lochinvar Knight XL and FTXL series, ensuring "plug-and-play" integration without field modifications.
- Enhanced System Durability: Provides clean electrical switching to protect the main control board from motor-induced voltage spikes.
- Effective Fault Detection: Facilitates standard HVAC diagnostic procedures through accessible terminals for coil resistance and contact continuity testing.
Which boiler models are compatible with this board?
This board is primarily utilized in Lochinvar Knight XL (KB399-800) and FTXL (FTX400-850) boilers, as well as A.O. Smith APN and KBX models requiring a 1.5 HP pump relay.
What are the symptoms of a failing pump relay board?
Common indicators include the circulation pump failing to engage during a call for heat, visible pitting or oxidation on the relay contacts, or the pump remaining energized constantly due to welded contact points.
How do I verify the board is functioning correctly?
Using a multimeter, technicians should verify the coil is receiving the correct trigger voltage and check for continuity across the output terminals when the relay is energized.
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: $196.82
-65%$196.82
$68.89Lochinvar & A.O. Smith 100208493 Board
The Lochinvar & A.O. Smith 100208493 Pump Relay Board is a critical OEM replacement component designed for high-demand hydronic heating applications. Rated for 1.5 HP pump motor control, this board serves as the primary switching interface between the boiler's integrated control logic and the external circulation pumps. It is specifically engineered for compatibility with Lochinvar Knight XL KB399-800 and FTXL series boilers, as well as several A.O. Smith boiler models. By regulating voltage supply and managing start-up torque, this industrial-grade relay board ensures efficient water circulation while preventing premature wear on the motor windings. As a direct OEM replacement, it maintains original system specifications for HVAC troubleshooting and localized load management. This board is essential for contractors maintaining commercial boiler pump control systems where precise timing and electrical isolation are required to protect sensitive hydronic heating controls from high-voltage feedback.
Key Benefits- 1.5 HP Power Rating: Robust design capable of handling high-torque starts for substantial commercial circulation pumps.
- OEM Compatibility: Precision-fit for Lochinvar Knight XL and FTXL series, ensuring "plug-and-play" integration without field modifications.
- Enhanced System Durability: Provides clean electrical switching to protect the main control board from motor-induced voltage spikes.
- Effective Fault Detection: Facilitates standard HVAC diagnostic procedures through accessible terminals for coil resistance and contact continuity testing.
Which boiler models are compatible with this board?
This board is primarily utilized in Lochinvar Knight XL (KB399-800) and FTXL (FTX400-850) boilers, as well as A.O. Smith APN and KBX models requiring a 1.5 HP pump relay.
What are the symptoms of a failing pump relay board?
Common indicators include the circulation pump failing to engage during a call for heat, visible pitting or oxidation on the relay contacts, or the pump remaining energized constantly due to welded contact points.
How do I verify the board is functioning correctly?
Using a multimeter, technicians should verify the coil is receiving the correct trigger voltage and check for continuity across the output terminals when the relay is energized.
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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Product Information
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Description
The Lochinvar & A.O. Smith 100208493 Pump Relay Board is a critical OEM replacement component designed for high-demand hydronic heating applications. Rated for 1.5 HP pump motor control, this board serves as the primary switching interface between the boiler's integrated control logic and the external circulation pumps. It is specifically engineered for compatibility with Lochinvar Knight XL KB399-800 and FTXL series boilers, as well as several A.O. Smith boiler models. By regulating voltage supply and managing start-up torque, this industrial-grade relay board ensures efficient water circulation while preventing premature wear on the motor windings. As a direct OEM replacement, it maintains original system specifications for HVAC troubleshooting and localized load management. This board is essential for contractors maintaining commercial boiler pump control systems where precise timing and electrical isolation are required to protect sensitive hydronic heating controls from high-voltage feedback.
Key Benefits- 1.5 HP Power Rating: Robust design capable of handling high-torque starts for substantial commercial circulation pumps.
- OEM Compatibility: Precision-fit for Lochinvar Knight XL and FTXL series, ensuring "plug-and-play" integration without field modifications.
- Enhanced System Durability: Provides clean electrical switching to protect the main control board from motor-induced voltage spikes.
- Effective Fault Detection: Facilitates standard HVAC diagnostic procedures through accessible terminals for coil resistance and contact continuity testing.
Which boiler models are compatible with this board?
This board is primarily utilized in Lochinvar Knight XL (KB399-800) and FTXL (FTX400-850) boilers, as well as A.O. Smith APN and KBX models requiring a 1.5 HP pump relay.
What are the symptoms of a failing pump relay board?
Common indicators include the circulation pump failing to engage during a call for heat, visible pitting or oxidation on the relay contacts, or the pump remaining energized constantly due to welded contact points.
How do I verify the board is functioning correctly?
Using a multimeter, technicians should verify the coil is receiving the correct trigger voltage and check for continuity across the output terminals when the relay is energized.
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.
