Question 31
If the customer load cannot be de-energized, pay attention to ( ) when disconnecting the maintenance bypass switch after the repair is completed.
Question 32
The assembly unit that can realize RS485/CAN to FE interface conversion is ().
Question 33
The compressor suction pressure of NetCol5000-A25kW is low. It is possible that ().
Question 34
Before installation, what is inside refrigerant pipe of the NetCol5000-A?
Question 35
When the internal short circuit of the battery occurs, the faulty battery charging voltage (), the open circuit voltage is low (generally less than 1V/cell).