There are usually two capacitors in the air compressor, which are the starting capacitor and the running capacitor. The following is the general wiring method: The starting capacitor of the compressor is connected to three external lines, the black line is the running end of the capacitor, the white line is the control end of the capacitor, and the yellow line is the common end of the capacitor.
First connect the common end of the compressor capacitor to the power supply end.
Then connect the control end of the compressor capacitor to the relay circuit.
Then install a line clip on the black running end.
Before connecting cables, ensure that the power supply is off and that you comply with relevant safety regulations. If you have questions about the capacitive wiring method of the air compressor, it is recommended to consult professional technicians or after-sales service personnel.