In summary, wiring a capacitor for a three-phase motor requires careful attention to the motor’s wiring diagram. The start capacitor should be connected between one of the main windings and the auxiliary winding, while the run capacitor is typically connected in parallel with one of the main windings.
Follow the lines in the diagram to trace where each wire should be connected to the run capacitor terminals. Once you have identified the wires, it’s time to make the connections. Start by connecting the common wire to the C terminal on the run capacitor.
These are simple capacitors with two terminals, typically labeled “+” and “-” or unpolarized for AC use. Example: CBB61 capacitor 2 wire. Applications: Ceiling fans or exhaust fans. Wiring: Follow the 2-wire capacitor wiring diagram provided by the manufacturer. 2. Wire Capacitors Common in fans and AC systems for run or start functions.
It’s important to follow the correct wiring diagram when installing a run capacitor to ensure that the motor receives the right amount of power. If the wiring is incorrect, it can lead to improper operation or even damage to the motor or other components.
Identify the connection points in the circuit where the capacitor will be wired. Use wire strippers to carefully strip insulation from the wires at these connection points, exposing the conductive metal. Solder the capacitor leads to the designated connection points in the circuit.
The wiring diagram for the start capacitor typically shows three terminals: “Herm”, “Fan”, and “C”. The “Herm” terminal is connected to the hermetic compressor while the “Fan” terminal is connected to the motor’s fan. The “C” terminal, also known as the common terminal, is connected to the power supply’s neutral or ground.