In a typical residential electrical system, alternating current (AC) flows through both the live (also known as hot) and neutral wires. The reason current flows through both wires in an air conditioner outdoor unit is due to the design of the electrical circuit and the requirements of the equipment.
Here's a brief explanation of how the current flows:
Live Wire: The live wire carries the alternating current from the electrical source to the air conditioner unit. It provides the power necessary to operate the equipment.
Neutral Wire: The neutral wire completes the electrical circuit. It acts as a return path for the current after it has passed through the air conditioner components. The current flows from the live wire to the air conditioner and returns through the neutral wire back to the electrical source.
In an air conditioner outdoor unit, the electrical circuit includes various components such as the compressor, fan motors, control circuitry, and other electrical elements. These components require both the supply of power (live wire) and a return path (neutral wire) to function properly.
It's important to note that the live and neutral wires should always be connected correctly and safely. Improper wiring or faulty electrical connections can lead to hazardous situations, electrical shocks, or equipment damage. If you have any concerns or need to work on your air conditioner's electrical system, it's recommended to consult a qualified electrician or HVAC professional to ensure safety and proper installation.