The AC capacitor wiring diagram explains all the terminals in the capacitor along with their wires connecting the capacitor to a fan motor, power supply, compressor, and other loads. The color code of wires in the diagram corresponds to the color code of the wires on the actual capacitor.
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.
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.
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.
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.
Wiring capacitors in general is stunningly simple, as described above on this page, as there are just two or at most three wire connections. We also describe how a technician uses a DMM or VOM to determine which wires on the motor are headed for the start winding and which for the run winding (measuring resistance).