Replacing The Primops Power Pc Board; Preparatory Work - Fronius Primo 4.5-1 Serviceanleitung

Replacing the PrimoPS power PC board

Preparatory work

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Replacing the Pri- Removing the PrimoPS:
moPS power PC
board
(5)
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WARNING! An electric shock can be fatal.
Follow the five safety rules.
Set the DC disconnector to OFF
Disconnect the AC supply
Remove the DATCOM cover
Disconnect the data communication cables if necessary
Release the device from the wall bracket and remove.
Remove the power stage set cover
(1)
(5) (2) (5) (3)
Remove air guide (1).
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Disconnect all the cables (2) - (4) from
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the PrimoPS
Remove the 14 4x9 mm TX20 screws
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(5) from the PrimoPS PC board
Feed the LVRT cable out of the ferrite
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ring
(5) (4) (5)