Application Range: Single -phase VRF 3P-4P Function Features: 1. The maximum input power is 4500W 2. SVPWM sensorless 180 sine wave control technology, integrated PFC control, power factor can reach 99% 3. The system can connect 8 indoor units at most. 4. Advanced adaptive PID control system 5. Accurate electronic expansion valve control technology 6. Perfect product fault self-diagnosis system ,and feeds back the running state of the product in real time. 7. The maximum communication distance is 1,000m. 8. Leading Inverter control technology, wide-range operation.