Replacing The Connection Unit; Removing The Connection Unit; Installing A New Connection Unit - SolarEdge SE66.6KUS Installation Manual

Replacing the Connection Unit

7. Perform pairing as described in Activating, Commissioning and Configuring the System Using the Inverter
SetApp on page 42.
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.
Si vous ne pouvez pas voir les LED de l'unité principale ou si vous ne pouvez pas vous connecter à
l'unité principale, ou si le voyant LED rouge s'allume, attendez cinq minutes que les condensateurs
d'entrée de l'onduleur se déchargent.
2. Disconnect the AC to the inverter by turning OFF the circuit breakers on the distribution panel.
3. Open the Connection Unit cover:
Release the s ix Allen screws of the cover.
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Tilt the top of the cover towards you.
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Slide the cover down and remove it.
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CAUTION!
When removing the cover, make sure not to damage internal components. SolarEdge will not be held
responsible for any components damaged as a result of incautious cover removal.
Lors du retrait du couvercle, assurez-vous de ne pas endommager les composants internes. SolarEdge
ne peut être tenue pour responsable des composants endommagés à la suite d'une imprudence dans le
retrait du couvercle.
4. Disconnect the interlock and DC cables.
5. Disconnect the Secondary Unit(s) from the Connection Unit .
6. If you replace a Connection Unit with a built-in Energy Meter, disconnect the RS485 connector from
the inverter communication board.
7. Unscrew the two conduit nuts in the Primary Unit securing the Connection Unit t o it, see Figure 52.
8. Open the Connection Unit cover and disconnect the DC, AC and communication wires. Unscrew the
two conduit nuts securing the Connection Unit to the external conduits.
9. Release the Connection Unit bracket from the wall.
10. Carefully remove the Connection Unit with its mounting bracket f rom the wall.

Installing a New Connection Unit

1. Position the new Connection Unit below the inverter and from the inside of the Primary Unit grab
the AC and DC wires extending from the switch conduits.
2. Securely screw the two conduit nuts onto the conduit ends in the inverter.
3. Attach the Connection Unit with its bracket to the wall and tighten its screw.
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-Three Phase Inverter with Synergy Technology Installation MAN-01-00402-1.4