INVT iMars Operation Manual page 41

iMars grid-tied solar inverters
Fan replacement procedure is as follows:
(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 new fan back
to its original position, and connect the fan power and control cable.
(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.
(12) Restart the inverter.
 Once the inverter alarms and stop, do not be restarted before all the fault has
Note
been ruled out. Checks should be strictly in accordance with Section 5.1 steps.
Figure 5.3 Replace fans
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Operation