Huawei SUN2000-110KTL-M0 - Page 115

CA UTION
● Before cleaning the system, connecting cables, and maintaining the grounding
reliability, power o the system and ensure that the all DC switches on the
solar 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 from entering the
maintenance compartment. If unavoidable, do not open the maintenance
compartment door.
Table 8-1 Maintenance list
Check Item Check Method Maintenance
Interval
Cleanness of air
intake and
exhaust vents,
and fans
● Check whether there is dust on
the air intake and exhaust vents.
If necessary, remove the bae
of the air intake vent and clean
the dust.
● Check whether the fans produce
abnormal sounds during
operation.
Once every 6 to 12
months
System running
status
● The solar inverter is not
damaged or deformed.
● The solar inverter operates with
no abnormal sound.
● All solar inverter parameters are
correctly set. Perform this check
when the solar inverter is
running.
Once every 6 months
Cables
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.
● Unused terminals and ports are
locked by watertight caps.
The rst inspection is
6 months after the
initial commissioning.
From then on, the
interval can be 6 to
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 to
12 months.
SUN2000-(100KTL, 110KTL, 125KTL) Series
User Manual 8 Maintenance
Issue 07 (2020-09-15) Copyright © Huawei Technologies Co., Ltd. 107