8 System Maintenance
● Wear personal protective equipment and use dedicated insulated tools to avoid
electric shocks or short circuits.
● Before performing maintenance, power o the equipment, follow the
instructions on the delayed discharge label, and wait for a period of time as
specied to ensure that the equipment is not energized.
8.1 Routine Maintenance
To ensure that the SUN2000 can operate properly for a long term, you are advised
to perform routine maintenance on it as described in this section.
● Before cleaning the SUN2000, connecting cables, and checking the grounding
reliability, power o the SUN2000 and ensure that the AUX. SWITCH and all
DC SWITCH of the SUN2000 are OFF.
● Do not open the maintenance compartment door on rainy or snowy days. If
you need to, take protective measures to prevent rain or snow from entering
the maintenance compartment. If protective measures cannot be taken, do not
open the maintenance compartment door.
SUN2000-(250KTL, 280KTL, 300KTL, 330KTL) Series
User Manual 8 System Maintenance
Issue 07 (2023-06-30) Copyright © Huawei Technologies Co., Ltd. 73
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