Appendix F: Replacing and Adding System
Components
This appendix includes replacement procedures for the SolarEdge system components.
For inverter or DC Safety Unit replacement, typically only the part to be replaced is
supplied (not both inverter and DC Safety Unit). In this case, the DC Safety Unit should
be disconnected from the inverter as described herein.
NOTE
If you are permanently disassembling the installation or part of it, make sure to
use the disposal methods dictated by local regulations.
CAUTION!
Do not remove the six screws on the DC metal panel as it
may harm the inverter sealing and void the warranty.
Replacing an Inverter
1. Turn OFF the DC Safety Unit (if applicable).
2. Turn OFF the inverter ON/OFF switch, and wait until the LCD indicates that the DC
voltage is safe (<50V), or wait five minutes before continuing to the next step.
WARNING!
If you cannot see the inverter panel, or if a malfunction is indicated on the
LCD panel, wait five minutes for the input capacitors of the inverter to
discharge.
3. Disconnect the AC to the inverter by turning OFF the circuit breakers on the
distribution panel.
4. Open the inverter cover as described in
Removing the Inverter Cover
on page 70.
5. Disconnect the DC plugs and AC wires from the inverter.
6.
For inverters with a DC Safety Unit, unscrew the two conduit nuts in the inverter
securing the DC Safety Unit to the inverter.
Appendix F: Replacing and Adding System Components 93
Three Phase System Installation Guide MAN-01-00057-4.1
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