Checking The Latches, Door Stops And Hinges; Checking The Switch Cabinet For Corrosion - SMA SUNNY CENTRAL 500CP-US/CA Maintenance Manual

7 Maintenance in Disconnected State
If seals are damaged, contact the SMA Service Line.
3. Maintain seals with talcum, petroleum jelly or wax. This prevents frost damage.
4. If the side panels are removed, check whether or not the seals in the side panels show any damage in the sealing area.
If seals are damaged, contact the SMA Service Line.

7.11 Checking the Latches, Door Stops and Hinges

Required maintenance material (not included in the scope of delivery):
☐ A suitable water-free, heat-resistant lubricant, e.g. WD40.
☐ Non-greasing antifreeze, e.g. PS88.
Procedure:
1.
Danger to life due to electric shock or electric arc by touching live components
• Disconnect the inverter and wait 15 minutes until the capacitors have discharged completely (see Section 6).
2. Check whether the doors latch easily. Open and close the doors several times.
If the doors do not latch easily, lubricate all moving parts of the latch.
3. Check whether the doors can be held in place.
If the doors cannot be held in place, lubricate the door stops.
4. Check whether the door hinges move easily.
If the door hinges do not move easily, lubricate them.
5. Lubricate all moving parts and movement points.
6. If the inverter is installed in regions where below-freezing temperatures occur, apply the non-greasing antifreeze to
the profile cylinder of the door locks and the key switch in order to protect against freezing.

7.12 Checking the Switch Cabinet for Corrosion

Required maintenance material (not included in the scope of delivery):
☐ Touch-up sticks, paint brushes, cans of spray paint or, alternatively, 2K-PUR acrylic paint in the proper RAL color can
be used to remove small-area surface damage. Observe the relevant instructions of the paint manufacturer.
☐ Touch-up paint or 2K-PUR acrylic paint in the proper RAL color can be used to repair large-area surface damage.
Observe the relevant instructions of the paint manufacturer.
Position
Roof
Base
Enclosure
☐ Abrasive cloth
☐ Degreaser
Procedure:
1.
Danger to life due to electric shock or electric arc by touching live components
• Disconnect the inverter and wait 15 minutes until the capacitors have discharged completely (see Section 6).
42 SCCP-US-WH-US_en-31
RAL color
RAL 7004
RAL 7004
RAL 9016
Article number
87-5051311
87-5051312
87-5051310
SMA America, LLC
Maintenance Manual