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10.4 Fan replacement
There are different types of fans present in your ESI-S unit, depending on the inverter
rating. The cooling fan lifespan is between 3 and 6 years typically, depending on the
usage and ambient temperature. Check the actual fan operating hours with the ESI-
Manager ([/Welcome/ESI monitoring/ESI operation]).
Fan failure is often preceded by increasing noise from the bearings and rise of the
heatsink temperature despite cleaning. It is recommended to replace the fan once these
symptoms appear. Contact your ABB service provider for replacement fans for your
system.
In order to exchange the cooling fans, follow the instructions below (Cf.
-
Ensure that the power to the inverter is switched off (upstream).
Wait for at least 25 minutes to allow for the DC capacitors to discharge.
-
-
Remove the cover on the right hand side of the ESI-S and disconnect the fan
terminals (at the bottom of the inverter next to the IGBT bridge for the "fan in"
and on the top right of the PCB for the "fan out").
-
Remove the screws that fix the fan set to the inverter enclosure (4 screws on the
bottom left side of the ESI-S for the "fan in" and 8 screws on the top right side for
the "fan out").
Remove the fan assembly from the enclosure.
-
-
Refit the assembly in the unit. Ensure proper fixation by the screws.
-
Reconnect the fan wires to the terminal block.
-
Reclose the inverter cover.
The components description is given in
3
Figure 96: Overview of cooling fan in
3
Figure 97: Overview of cooling fan out
Table
57.
Manual Energy Storage Inverter ESI-S ç Maintenance instructions 197
Figure
96):
1
2
1
2
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