The terminal labeled HERM on a dual capacitor is connected to which part of the compressor?

The terminal labeled HERM on a dual capacitor is connected to the start winding of the compressor. In HVAC systems, the compressor is essential for circulating refrigerant, and it typically has two windings—run and start. The start winding is designed to provide the initial torque needed to start the compressor, while the run winding keeps it operating once it is up to speed.

The dual capacitor is used to enhance the operation of the compressor by providing the necessary phase shift to the electrical current. The HERM terminal specifically caters to the start winding’s needs, which is critical for initiating the compressor’s operation. This means that when power is applied through the capacitor, it ensures that the start winding receives the correct electrical impulses needed to kick-start the compressor.

In this context, the other terminals connected to the dual capacitor serve different functions. The run winding is often connected to a terminal labeled "RUN," and the common winding connection typically goes to a terminal labeled "COMMON." Thus, the HERM terminal’s specific association with the start winding directly aligns it with the initiation process of the compressor, making it the correct answer.