Appendix C: External Fan Maintenance And Replacement; Fan Maintenance; External Fan Replacement - SolarEdge SE66.6KUS Installation Manual

Appendix C: External Fan Maintenance and Replacement

Appendix C: External Fan Maintenance and
Replacement
The Primary and Secondary Units have two fans each: one is internal a nd the other is accessible from the
outside of the unit. This appendix describes external fan replacement.
A fan replacement kit is available from SolarEdge.
Figure 50: Primary Unit (left) and Secondary Unit (right) external fans

Fan Maintenance

At least once a year, open the fan screen and clean the accumulated dust using a brush.
If the SetApp Status screen displays the status Not Working for the fan (refer to Main Inverter Status on
page 47), replace the fan as described in the next section.

External Fan Replacement

1. Turn OFF the inverter ON/OFF/P switch, and wait until the green LED is blinking , indicating that the
DC voltage is safe (<50V), or wait five minutes before continuing to the next step.
2. Disconnect the AC to the inverter by turning OFF the circuit breakers on the distribution panel.
3. Use a standard screwdriver to unfasten the two screws of the fan cover and open the fan door.
4. Disconnect the fan connector and remove the fan.
5. Connect the fan connector to the new fan.
6. Close the fan door and fasten the cover screws.
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-Three Phase Inverter with Synergy Technology Installation MAN-01-00402-1.4