KACO blueplanet 3.0 - 4.6 TL1 - Manual (Page 44)

EN EN
Maintenance/Troubleshooting
Page 44 Operating Instructions for KACO blueplanet 3.0-4.6 TL1
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 fi ns 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 result 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 cables. Arcing
may occur if the DC cables are disconnected while they are still live.
Only appropriately qualifi ed and authorised electricians may open and maintain the inverter.
› Observe all safety regulations and the current technical connection specifi cations 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.
CAUTION
Destruction of the DC connection
The connection terminals can be destroyed by arcing if disconnected while still live.
› It is absolutely essential that the shutdown sequence is carried out in the correct order.
Shutting down the inverter
1. Switch off the grid voltage by turning off the external circuit breakers.
2. Disconnect the PV generator using the DC isolator switch.
DANGER! The DC cables are still live.
 Ensure that there is no voltage present on the grid connection terminals.