Important Note:
1. In utility bypass mode, the device cannot be connected to two-phase 220V AC, i.e. L1-L2 cannot be connected to L-N.
2. 2. In inverter mode, after the device is connected to two-phase 220V, please do not select utility priority for the output priority, so as not to cause safety hazards to the device.
3. Please do not connect the AC output of the device to the autotransformer, so as not to affect the normal service life of the device.