● Before cleaning the system, connecting cables, and maintaining the grounding
reliability, power o the system and ensure that the three DC switches on the
inverter are OFF.
● If you need to open the maintenance compartment door in rainy or snowy
days, take protective measures to prevent rain or snow entering the
maintenance compartment. If unavoidable, do not open the maintenance
compartment door.
Maintenance list
Item Check Method Maintenance
Interval
● Cleanness of
air intake and
exhaust vents
● Fans
● Check whether there is dust on
the air intake and exhaust vents.
If necessary, remove the bae
of the air intake vent.
● Check whether the fans produce
abnormal sounds during
operation.
Once every 6 to 12
months
System running
status
● The inverter is not damaged or
deformed.
● The inverter operates with no
abnormal sound.
● When the inverter is running,
check whether all inverter
parameters are correctly set.
Once every 6 months
Electrical
connections
● Cables are securely connected.
● Cables are intact, and in
particular, the parts touching
the metallic surface are not
scratched.
● Check whether the sealing caps
of idle DC input terminals fall
o.
● Check that the idle COM and
USB ports are locked by
waterproof caps.
The rst inspection is
6 months after the
initial commissioning.
From then on, the
interval can be 6 or
12 months.
Grounding
reliability
Ground cables are securely
connected.
The rst inspection is
6 months after the
initial commissioning.
From then on, the
interval can be 6 or
12 months.
SUN2000-(175KTL-H0, 185KTL-INH0, 185KTL-H1)
User Manual 8 Maintenance
Issue 19 (2023-12-20) Copyright © Huawei Technologies Co., Ltd. 94
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