Three-phase photovoltaic grid-connected inverter
Running
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(6) Install the screws and covers of cooling bin or fan box to their original place.
(7) Install the inverter to its original place again according to section 4.
(8) Repeat the operations in section 5.1.
(9) Restart the inverter.
Fan replacement
If high temperature occurred to the inverter or abnormal noise occurred during fan rotating, replace
the fan. Note that the fan should be replaced by professionals only.
Stop the inverter before maintenance operation, and disconnect all the power
inputs of the inverter.
Before carrying out maintenance operation, wait for at least 10 minutes until
the internal capacitors of the inverter are fully discharged,
The fan can be maintained and replaced by professional electricians only.
How to replace the fan:
(1) Disconnect AC breaker;
(2)
Turn the DC switch to “OFF” position;
(3) Wait for at least 10 minutes;
(4) Disconnect all the electrical wirings at the bottom of the inverter;
(5) Lift up the inverter with the help of others and take the inverter off the wall.
(6) Place the inverter on the operation platform;
(7) Disassemble the fan box as shown in fig 5.2.
(8) Disassemble the damaged inverter fan as shown in fig 5.3, then install the fan back to its
original position, and connect the fan power and control cable.
Fig 5.3 Replace the fan
(9) Install the screws and covers of cooling bin or fan box to their original position.
(10) Install the inverter to its original position again according to section 4.
(11) Repeat the operations in section 5.1;
