KACO Powador 10.0 - 20.0 TL3 - Manual (Page 44)

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Maintenance/Troubleshooting
Page 44 Operating Instructions Powador 12.0 TL3-20.0 TL3
9 Maintenance/Troubleshooting
9.1 Visual inspection
Inspect the inverter and the cables for visible damage and note the operating status display of the inverter. In case
of damage, notify your installer. Repairs may only be carried out by authorised electricians.
NOTE
The inverter should be checked for proper operation by a qualified electrician at regular intervals.
9.2 Cleaning the inverter externally
DANGER
Lethal voltages in the inverter
Serious injuries or death can result if moisture enters the inverter.
› Only use completely dry objects to clean the inverter.
› Only the exterior of the inverter should be cleaned.
Cleaning the inverter
" Do not use compressed air.
" Use a vacuum cleaner or a soft brush to remove dust from the fan cover, between the cooling fins and from
the top side of the inverter on a regular basis.
" Remove dust from the ventilation inlets if necessary.
" If necessary, remove the fan cover and remove deposits.
Authorised electrician
9.3 Shutting down for maintenance and troubleshooting
DANGER
Lethal voltages are still present in the terminals and cables of the inverter even after the
inverter has been switched off and disconnected.
Severe injuries or death may occur if the cables and terminals in the inverter are touched.
When there is solar radiation, DC voltage will be present at the open ends of the DC leads. Arcing may
occur if the DC cables are disconnected while they are still live.
Only appropriately qualified and authorised electricians may open and maintain the inverter.
› Observe all safety regulations and the current technical connection specifications from the relevant
power supply company.
› Disconnect the AC and DC sides.
› Secure the AC and DC sides from being inadvertently switched back on.
› Do not touch the exposed ends of the cables.
› Avoid short circuits.
› Do not open the inverter until these two steps are complete.
› After shutdown, wait at least 30 minutes before working on the inverter.