At 9 pm, which components are energized when the HOA switch is in the AUTO position?

When the HOA (Hand-Off-Automatic) switch is in the AUTO position, it allows for automatic control of the electrical components associated with the system. In this context, various components can be energized depending on how the system is designed.

In the AUTO position, the TC motor (which could refer to a temperature controller motor), the transformer, relay R1, and potentially other indicators such as the white and green lights would all be functioning. The transformer is crucial for stepping down voltage or providing power to the circuit, while the TC motor typically drives a component in the system. Relay R1 is used for switching power to those components on and off as necessary based on the system's requirements.

In summary, when the HOA switch is set to AUTO at 9 pm, all specified components—TC motor, transformer, relay R1, and any signal lights—are energized to ensure the system operates correctly. This comprehensive control allows for effective automation and functionality of the electrical system being monitored or controlled.