Repairs
37
Building Technologies
FL-III Maintenance and Repair
CPS Fire Safety
08.2012
Device version with 12V to 48V DC power supply
Fig. 23
Location of the power supply
In order to replace the power supply, the housing of the controller must be opened.
1
Release and remove the housing cover of the controller.
2
Fully remove the single mounting screw of the fitting panel of the power
supply from the floor of the housing (fig. 24 - 1).
3
Fully remove the three mounting screws of the cooling bar of the power
supply from the housing floor. It must be ensured that the screws for the
mounting of the four transistors on the cooling bar are not accidentally
loosened or removed (fig. 24 - 2).
4
Loosen the power supply panel from the fitting panel of the power supply (fig.
24 - 3).
5
Loosen the power supply panel from the housing floor(fig. 24 - 4).
6
Loosen the power supply from the mainboard by sliding it to the side in the
area of the connector.
7
Insert the new power supply and reassemble the controller in the reverse
order up to the housing cover.
8
The housing cover can be mounted when all preliminary functions work
correctly, i.e. the LED’s light up at switching on.
Ensure that there are no loose parts in the housing.
Check that all screws have been tightened and that there are no screws left
over.
After the work is completed, it is necessary to perform a functional test and
commissioning of the controller.
