SMA SUNNY TRIPOWER X 20-US - Decommissioning the Product

12 Decommissioning the Product
SMA Solar Technology AG
Operating manual STPxx-US-50-BE-en-11 91
12 Decommissioning the Product
To decommission the inverter completely upon completion of its service life, proceed as described
in this Section.
CAUTION
Risk of injury due to weight of product
Injuries may result if the product is lifted incorrectly or dropped while being transported or
mounted.
• Transport and lift the product carefully. Take the weight of the product into account.
• Use the carrying handles or hoist when transporting the product. To attach the hoist system,
eye bolts must be screwed into the threads provided, which are located on the right and left
of the product's mounting lugs.
• Wear suitable personal protective equipment for all work on the product.
Procedure:
1. Disconnect the inverter from all voltage sources (see Section9, page67).
2.
CAUTION
Risk of burns due to hot enclosure parts
• Wait 30 minutes for the enclosure to cool down.
3. If the DC terminal cover is present, disassemble the DC terminal cover. To do so, unscrew the
M5x14 screws (TX25).
4. Remove the equipment grounding conductor of the PV modules from the equipment grounding
bar. To do so, loosen the screws using a cross-head screwdriver.
5. Remove the equipment grounding bar from the inverter. To do this, unscrew the M5x18 screws
(TX25) and remove the screws, washers and serrated conical spring washers.
6. Remove the AC conductors from the inverter. Press the locking levers all the way upward and
pull the conductors out of the terminal blocks for the AC connection.
7. Press down the locking levers of the terminal blocks for the AC connection.
8. If the multifunction relay is used, remove the connection cable from the inverter.
9. If other cables (e.g. network cables or signal cables) are connected, remove them from the
inverter.
10. If a module is plugged in, remove it from the inverter.
11. Close the enclosure lid of the inverter.
12. If the inverter is protected against theft, open the padlock and remove it.
13. Unscrew the two M5x14 screws protecting the inverter from being lifted off with a screwdriver
(TX25).