Lochinvar & A.O. Smith 100208473 Connection Board

The Lochinvar & A.O. Smith 100208473 Connection Board (also identified as a Low Voltage Connection Board or LVCB) is a critical component for streamlining communication between internal boiler controls and external system devices. Specifically engineered for Armor AW151 - AW801 condensing water heaters and WHN286 boiler configurations, this OEM replacement part serves as the central hub for low-voltage signals. It facilitates proper landing points for auxiliary limit switches, outdoor temperature sensors used in outdoor reset operations, and safety devices like gas pressure switches or low water cutoffs (LWCO). By centralizing these HVAC control board connections, technicians can ensure more efficient boiler diagnostic procedures and maintain system stability during high-demand cycles. This genuine Lochinvar boiler part is essential for resolving common "Gas Pressure SW" or "Air Pressure SW" error codes caused by faulty signal paths or open switch contacts on the board itself.

Key Benefits:

• Ensures seamless boiler control board integration with external thermostats and building automation systems (BAS).
• Provides dedicated terminals for outdoor sensors, enabling high-efficiency outdoor reset operation to maximize fuel savings.
• Simplifies field troubleshooting with clearly labeled landing points for gas pressure, flow, and air pressure switches.
• Compatible with a wide range of Lochinvar Armor AW151 - AW801 models and WHN286 units.
• Constructed to OEM specifications to maintain the original certification and safety operation of the heating appliance.

Common Questions:

• Will this board resolve a "Gas Pressure SW" error code? If the external switch is functional but the signal is not reaching the main control module, a faulty 100208473 low voltage board is a likely culprit that needs a direct swap.
• Does this board support outdoor sensors for reset functionality? Yes, this connection board includes the specific terminals required to wire an outdoor temperature sensor for modulating the boiler's setpoint based on ambient conditions.
• Is this compatible with A.O. Smith branded equipment? Correct; this board is a cross-functional A.O. Smith connection board utilized in various commercial water heating platforms shared with Lochinvar.

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.