Sma SUNNY BOY User Manual download pdf (Page 27)

SMA Solar Technology AG Maintenance and Cleaning

User Manual SB_SMC-BEN092840 27

5 Maintenance and Cleaning

Check the correct operation of the inverter at regular intervals. Impurities such as dust or pollen can

cause heat accumulation that can lead to yield losses. Also check the inverters and the cables for

visible external damage. Have repairs carried out if necessary.

5.1 Checking Heat Dissipation

5.1.1 Cleaning the Cooling Fins

Applies to Sunny Boy models SB 1100, SB 1200, SB 1700, SB 2100TL, SB 2500, SB 3000

and SB 3300TLHC

The heat dissipation of the Sunny Boy can be restricted if the cooling fins are dirty.

• Clean the cooling fins with a suitable, soft brush.

5.1.2 Cleaning the Fans

Applies to Sunny Boy models SB 3300, SB 3800 and Sunny Mini Central

If the fan guards are only covered in loose dust, they can be cleaned with a vacuum cleaner. If

vacuum cleaning does not produce a satisfactory result, please contact your installer, who will

dismantle the fans for cleaning.

• The fan cleaning procedure is described in the respective installation guide and may only be

carried out by a qualified personnel.

5.2 Cleaning the Display

If the display or the status LEDs are so soiled that they can no longer be read, they should be cleaned

with a damp cloth.

• Never use solvents, abrasives or corrosive materials for cleaning!

CAUTION!

Danger of burn injuries due to hot enclosure parts!

• Do not touch the inverter's enclosure during operation.

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Sma SUNNY BOY User Manual Page 27