SMA WB 5000A-11 Installation - Manual (Page 61)

SMA Solar Technology AG Maintenance and Cleaning
Installation Manual WB5A_6A-IA-IEN114540 61
8 Maintenance and Cleaning
8.1 Cleaning the Inverter
If the inverter is soiled and visibility of inverter operating data and operating modes is restricted, wipe
the enclosure lid, display and LEDs clean with a damp cloth. Do not use any caustic substances
(e.g., solvents, abrasives) for cleaning.
8.2 Checking the Heat Dissipation
8.2.1 Cleaning the Fans
If the fan guards are just clogged with loose dust, clean them with a vacuum cleaner. If you do not
achieve satisfactory results with a vacuum cleaner, dismantle the fans for cleaning.
Procedure
1. Disconnect the inverter from both the DC and AC sides as described in Section 7.2 "Opening
the Inverter" (page 57).
2. Wait for the fans to stop rotating.
Cleaning the Fan Guards
3. Remove the fan guards:
– Press both latches on the right edge of the fan
guard to the right using a screwdriver and
dislodge from the retainer.
– Carefully remove the fan guard.
4. Clean the fan guards with a soft brush, a paint
brush, a cloth or compressed air.
DANGER!
Danger to life due to high voltages in the inverter
• Stop the small wind turbine system and make sure that it cannot restart.
• Disconnect the inverter on the AC and DC sides.