Replacing A Secondary Unit; Replacing The Connection Unit - SolarEdge SE12.5K Installation Manual

Replacing a Secondary Unit

1. Turn OFF the Inverter ON/OFF 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.
WARNING!
If you cannot see Primary Unit LEDs or you cannot connect to the Primary
Unit, or if the red LED light is on indicating a malfunction , wait five minutes for
the input capacitors of the inverter to discharge.
AVERTISSEMENT!
2. Disconnect the AC to the inverter by turning OFF the circuit breakers on the
distribution panel.
3. Disconnect all the connectors on the bottom of the Secondary Unit.
4. Remove the screw securing the Secondary Unit to the mounting bracket and
remove the Secondary Unit from the mounting bracket.
5. Place the new Secondary Unit on the mounting bracket.
6. Insert one of the supplied screws through the outer side of the heat sink and into
the bracket.
7. Perform pairing as described in Activating, Commissioning and Configuring the
System Using the Inverter SetApp on page 43.

Replacing the Connection Unit

Removing the Connection Unit
1. Turn OFF the Inverter ON/OFF 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.
WARNING!
If you cannot see Primary Unit LEDs or you cannot connect to the Primary
Unit, or if the red LED light is on indicating a malfunction, wait five minutes
for the input capacitors of the inverter to discharge.
AVERTISSEMENT!
2. Disconnect the AC to the inverter by turning OFF the circuit breakers on the
distribution panel.
3. Open the Connection Unit cover:
Three Phase Inverter with Synergy Technology Installation MAN-01-00402-1.2
Appendix E: Replacing System Components 89