Applying 120V power will damage the internal circuitry and the gas valve solenoid

Smith systems that utilize CCB 3-element logic

The unit features a 12VDC solenoid coil protected by a rugged NEMA 4X enclosure

If the sensor is within range and the board has power but fails to energize the reversing valve or stop the outdoor fan during a forced defrost

Amana-Goodman CAP050550440RTP Capacitor 318172-701 Applying 120V power will damageThe Amana Goodman CAP050550440RTP Capacitor is a high performance 55 5 microfarad 440Vac round dual run capacitor designed for demanding HVAC applications. This genuine OEM replacement part is engineered to support the simultaneous operation of both the compressor and condenser fan motor, ensuring your air conditioning or heat pump system maintains peak mechanical efficiency. Constructed with a classic round aluminum casing, it is rated for 440 volts