1. First, close the main circuit breaker of the household distribution panel.
2. Then sequentially close the GRID IN breaker, inverter breaker, and AC OUT breaker inside the PowerHub 3P. After completion, close the compartment door and tighten the screws.
3. Finally, close the newly installed breaker in the household distribution panel.
Key Prohibition: Do not operate the bypass breaker during the entire power-on process.