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Installation and Operation Manual for Solar Power Inverter M70A EU V1.1 EN 2020-02-20
10 Maintenance
Periodic maintenance
10.2 Periodic maintenance
Delta inverters are designed for use under dicult environmental
conditions and are characterized by low maintenance require-
ments.
Excessive deposits on the fan module and air lters may aect
energy yield, but will not limit operation.
In order to detect unusual power losses in time, Delta recom-
mends the use of a monitoring system in combination with the
Delta Modbus protocol.
It is the responsibility of the PV system service provider to draw
up a maintenance plan for the inverters that takes into account
the local external conditions.
10.3 Replacing components
The replacement of components must only be carried out by
electrical installers who are trained and approved for work on
grid-connected solar inverters.
The following components may be replaced:
● Fan module and air lters
● Internal fans
● AC surge protection devices
● DC surge protection devices
● Sub-1G antenna
● Wi-Fi module
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