KACO Powador 16.0 TR3 - Manual (Page 40)

M a i n t e n a n c e / T r o u b l e s h o o t i n g
Operating Instructions Powador 16.0 TR3, 18.0 TR3_EN Page 41
9 Maintenance/Troubleshooting
9.1 Visual inspection
Inspect the inverter and the leads for visible damage and pay attention to the operating status display of the
inverter. In case of damage, notify your installer. Only authorised electricians may make repairs.
NOTICE
Have your installer check for proper operation of the inverter at regular intervals.
9.2 External cleaning
DANGER
Lethal voltages in the inverter
Serious injuries or death if moisture enters the inverter.
› Only use objects that are free of moisture to clean the inverter.
› The inverter should only be cleaned on the outside.
Cleaning the inverter
 Do not use compressed air.
 Use a vacuum cleaner or a soft brush to remove dust from the fan cover and from the top of the inverter on a
regular basis.
 Remove dust from the ventilation inlets if necessary.
9.3 Shutting down for maintenance and troubleshooting
DANGER
Lethal voltages are still present in the terminals and leads of the inverter even after the
inverter has been switched off and disconnected.
Severe injuries or death if the leads and terminals in the inverter are touched.
When there is irradiance, DC voltage is present on the exposed ends of the DC leads. Arcing may
occur if the DC leads are disconnected while under a load.
Only authorised electricians who are approved by the supply grid operator may open and maintain
the inverter.
› Observe all safety regulations and the currently applicable technical connection specifi cations of
the responsible power supply company.
› Disconnect the AC and DC sides.
› Secure the AC and DC sides from being switched on again.
› Do not touch the exposed ends of the leads.
› Avoid short circuits.
› Do not open the inverter until after these two steps are complete.
› After shutdown, wait at least 30 minutes before working on the inverter.
Authorised electrician