you must verify the orifice capacity and ensure the regulator body is rated for those inlet pressures before installation

Common system issues include a restricted vent pipe

or 9-13 PSI operation to align with your controller's output

If the 80/5 MFD rating deviates by more than 5-10%

Lochinvar & A.O. Smith 100208501 Connection Board 30067439-890 you must verify the orificeAs a seasoned technician, you know that a reliable low voltage control interface is the backbone of any first generation Lochinvar Knight boiler or A. O. Smith commercial water heater. The Lochinvar & A. O. Smith 100208501 Connection Board serves as the centralized wiring hub for vital field installed components. This genuine OEM board is a direct, pin to pin replacement for the Lochinvar RLY2202, ensuring seamless integration without the need for