KACO Powador 16.0 TR3 - Manual (Page 41)

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
Page 42 Operating Instructions Powador 16.0 TR3, 18.0 TR3_EN
CAUTION
Destruction of the DC connection
The connection terminals can be destroyed by arcing if disconnected under load.
› It is absolutely necessary that the shutdown sequence be carried out in the correct order.
Shutting down the inverter
1. Switch off the grid voltage by deactivating the external circuit breakers.
2. Disconnect the PV generator using the DC disconnect.
DANGER! The DC leads remain live.
 Ensure that there is no voltage present on grid connection terminals.
9.4 Replacing or cleaning the fans
The inverter is equipped with three axial fans. They are located next to each other in the lower area of the housing.
Replace the fan:
– In case of heavy soiling
– If it is defective
Removing the fans
1. Ensure complete disconnection on the AC and DC
sides.
2. Wait until the fans are no longer turning.
 If you want to replace the left fan: Open the housing
cover on the left side.
 If you want to replace the right or centre fan: Open
the housing cover on the right side.
3. Unscrew the Torx crews of the side housing cover
(fi gure 15 on page 42).
4. Remove the side housing cover.
5. Unplug the fan plug.
6. Push the fan horizontally away from the fan plug.
7. Release the fan from the fan holding fi xture (fi gure 17
on page 43).
8. Remove the fan from the housing.
» Install the replacement fan. Fig. 15: Removing the side housing cover
Authorised electrician