1. Built in 4G communication module and IoT network card
2. Cooling/heating mode can be selected, and the compressor, defroster and fan are independently controlled
3. Defrosting mode: electric defrosting and thermal fluorination can be selected
4. When the fan is in standby mode, it can be started and stopped circularly and can be connected with an external alarm
5. Phase dislocation and phase failure protection of three-phase power supply (can be disabled)
6. Compressor current overload, phase loss and imbalance protection (disabled or not, software adjustable)
7. Voltage control alarm input (automatic reset or not, software adjustable)
8. Parameter setting shortcut key, easy to use