Huawei SUN2000-111KTL-NHM0 User Manual page 109

SUN2000-111KTL-NHM0
User Manual
● Before cleaning the system, connecting cables, and maintaining the grounding
● If you need to open the maintenance compartment door in rainy or snowy
Table 8-1 Maintenance list
Check Item
● Cleanness of
● Fans
System running
status
Electrical
connections
Grounding
reliability
Issue 09 (2023-12-18)
CA UTION
reliability, power off the system and ensure that the all DC switches on the
solar inverter are OFF.
days, take protective measures to prevent rain or snow from entering the
maintenance compartment. If unavoidable, do not open the maintenance
compartment door.
Check Method
● Check whether there is dust on
air intake and
exhaust vents
● Check whether the fans produce
● The inverter is not damaged or
● The inverter operates with no
● When the inverter is running,
● Cables are securely connected.
● Cables are intact, and in
● Check whether the sealing caps
● Check that the idle COM and
Ground cables are securely
connected.
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the air intake and exhaust vents.
If necessary, remove the baffle
of the air intake vent.
abnormal sounds during
operation.
deformed.
abnormal sound.
check whether all inverter
parameters are correctly set.
particular, the parts touching
the metallic surface are not
scratched.
of idle DC input terminals fall
off.
USB ports are locked by
waterproof caps.
8 Maintenance
Maintenance
Interval
Once every 6 to 12
months
Once every 6 months
The first inspection is
6 months after the
initial commissioning.
From then on, the
interval can be 6 or
12 months.
The first inspection is
6 months after the
initial commissioning.
From then on, the
interval can be 6 or
12 months.
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