A three-phase air conditioner is commonly used in large buildings, commercial areas, and industrial setups due to its stable power supply and high efficiency. The wiring diagram of a 3-phase AC includes both the indoor and outdoor units connected through power lines and control wires.
3 Phase Air Conditioner Indoor wiring Diagram
3 Phase Air Conditioner Outdoor wiring Diagram
In the outdoor unit, the main components include the compressor, condenser fan motor, contactor, capacitor, and circuit breaker. These parts receive balanced power from three live wires (R, Y, B) and one neutral line. The indoor unit connects to the outdoor unit through communication and power control wiring, ensuring synchronized operation for cooling and heating functions.
Proper wiring ensures safe operation, reduces voltage drop, and prevents short circuits. Technicians must follow color codes and connection sequences as per manufacturer guidelines for reliable performance and maintenance.
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