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User Manual V1.4-2022-08-30 09 Maintenance
9.5 Routine Maintenance
Maintaining Item Maintaining Method Maintaining Period
System Clean
Check the heat sink, air intake, and air
outlet for foreign matter or dust.
Once 6-12 months
DC Switch
Turn the DC switch on and o ten
consecutive times to make sure that it is
working properly.
Once a year
Electrical Connection
Check whether the cables are securely
connected. Check whether the cables are
broken or whether there is any exposed
copper core.
Once 6-12 months
Sealing
Check whether all the terminals and ports
are properly sealed. Reseal the cable hole
if it is not sealed or too big.
Once a year
THDi Test
For Australia requirements, in the THDi
test, there should add Zref between
inverter and mains.
L: 0.24 Ω + j0.15 Ω; N:0.16 Ω +j0.10 Ω
L: 0.15 Ω + j0.15 Ω ; N:0.1 Ω + j0.1 Ω
As needed.
WARNING
• Make sure that the inverter is powered o.
• Wear proper PPE before any operations.
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