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7 Maintenance and De-installation
This section defines the activities required to properly maintain the inverter and
must be facilitated by qualified personnel, trained in the installation, de-installation
and maintenance of inverters.
7.1 Product Maintenance
Maintenance is required to ensure the inverter remains in proper condition,
prolonging service life and prevent potential issues.
7.1.1 Check Electrical Connections
Check all conductor connections as regular maintenance inspection
every 6 months to one year, depending on the temperature changes at
the installation site.
Check the conductor/cable connections. If loose, tighten all the
terminals to propr torque, referring to 3.3 Electrical Installation.
Check for damage to the conductor/cable jacket. Repair or replace
any damaged conductors/cables.
7.1.2 Clean the Air Vent Grate
The inverter can become hot during normal operation. It uses built in
cooling fans to provide sufficient air flow and help in heat dissipation.
Check the air vent grate regularly to make sure it is not blocked. Clean
the grate with a soft brush or vacuum cleaner attachment if necessary.
The frequency of this cleaning depends on the installation environment.
WARNING:
All the installation and wiring connections should be performed by
qualified technical personnel. Disconnect the inverter from PV
modules and the AC supply before undertaking maintenance.
Do not operate or maintain the inverter until at least 5 minutes after
disconnecting all sources of DC and AC.
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