Aaon P51900 Relay extending the life of the

extending the life of the heat exchanger and sensors

When troubleshooting furnace short-cycling or blower fan "run-on" issues

replacing the existing orifice with this genuine Nordyne furnace part restores the system to factory-spec gas flow rates

plumbing adjustments or a different model would be necessary to ensure the dial face remains visible

Always verify your system's operating pressure against this MOPD to prevent failure to open

Aaon P51900 Relay extending the life of theThe Aaon P51900 Relay is a heavy duty DPDT (Double Pole Double Throw) power relay designed for precision switching in high demand HVACR systems. Part of the RH Series Compact Power Relays, this 24Vac coil relay features a 10Amp contact rating, making it an essential component for controlling fan motors, dampers, and heating elements in Aaon rooftop units and air handlers. Engineered with blade terminals for secure electrical connections and a top